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/* |
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* Copyright (C) 2005-2006 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: cpu_ppc_instr.c,v 1.70 2006/04/14 19:58:21 debug Exp $ |
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* |
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* POWER/PowerPC instructions. |
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* |
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* Individual functions should keep track of cpu->n_translated_instrs. |
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* (If no instruction was executed, then it should be decreased. If, say, 4 |
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* instructions were combined into one function and executed, then it should |
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* be increased by 3.) |
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*/ |
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|
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|
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#include "float_emul.h" |
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|
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|
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#define DOT0(n) X(n ## _dot) { instr(n)(cpu,ic); \ |
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update_cr0(cpu, reg(ic->arg[0])); } |
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#define DOT1(n) X(n ## _dot) { instr(n)(cpu,ic); \ |
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update_cr0(cpu, reg(ic->arg[1])); } |
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#define DOT2(n) X(n ## _dot) { instr(n)(cpu,ic); \ |
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update_cr0(cpu, reg(ic->arg[2])); } |
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|
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#ifndef CHECK_FOR_FPU_EXCEPTION |
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#define CHECK_FOR_FPU_EXCEPTION { if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { \ |
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/* Synchronize the PC, and cause an FPU exception: */ \ |
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uint64_t low_pc = ((size_t)ic - \ |
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(size_t)cpu->cd.ppc.cur_ic_page) \ |
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/ sizeof(struct ppc_instr_call); \ |
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cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << \ |
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PPC_INSTR_ALIGNMENT_SHIFT)) + (low_pc << \ |
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PPC_INSTR_ALIGNMENT_SHIFT); \ |
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ppc_exception(cpu, PPC_EXCEPTION_FPU); \ |
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return; } } |
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#endif |
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|
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|
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|
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/* |
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* nop: Do nothing. |
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*/ |
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X(nop) |
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{ |
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} |
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|
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|
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/* |
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* invalid: To catch bugs. |
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*/ |
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X(invalid) |
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{ |
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fatal("PPC: invalid(): INTERNAL ERROR\n"); |
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exit(1); |
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} |
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|
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|
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/* |
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* addi: Add immediate. |
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* |
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* arg[0] = pointer to source uint64_t |
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* arg[1] = immediate value (int32_t or larger) |
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* arg[2] = pointer to destination uint64_t |
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*/ |
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X(addi) |
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{ |
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reg(ic->arg[2]) = reg(ic->arg[0]) + (int32_t)ic->arg[1]; |
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} |
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X(li) |
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{ |
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reg(ic->arg[2]) = (int32_t)ic->arg[1]; |
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} |
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X(li_0) |
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{ |
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reg(ic->arg[2]) = 0; |
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} |
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|
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|
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/* |
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* andi_dot: AND immediate, update CR. |
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* |
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* arg[0] = pointer to source uint64_t |
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* arg[1] = immediate value (uint32_t) |
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* arg[2] = pointer to destination uint64_t |
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*/ |
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X(andi_dot) |
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{ |
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MODE_uint_t tmp = reg(ic->arg[0]) & (uint32_t)ic->arg[1]; |
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reg(ic->arg[2]) = tmp; |
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update_cr0(cpu, tmp); |
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} |
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|
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|
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/* |
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* addic: Add immediate, Carry. |
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* |
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* arg[0] = pointer to source register |
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* arg[1] = immediate value (int32_t or larger) |
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* arg[2] = pointer to destination register |
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*/ |
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X(addic) |
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{ |
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/* TODO/NOTE: Only for 32-bit mode, so far! */ |
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uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
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uint64_t tmp2 = tmp; |
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cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
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tmp2 += (uint32_t)ic->arg[1]; |
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if ((tmp2 >> 32) != (tmp >> 32)) |
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cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
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reg(ic->arg[2]) = (uint32_t)tmp2; |
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} |
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|
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|
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/* |
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* subfic: Subtract from immediate, Carry. |
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* |
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* arg[0] = pointer to source uint64_t |
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* arg[1] = immediate value (int32_t or larger) |
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* arg[2] = pointer to destination uint64_t |
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*/ |
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X(subfic) |
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{ |
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MODE_uint_t tmp = (int64_t)(int32_t)ic->arg[1]; |
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cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
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if (tmp >= reg(ic->arg[0])) |
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cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
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reg(ic->arg[2]) = tmp - reg(ic->arg[0]); |
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} |
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|
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|
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/* |
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* addic_dot: Add immediate, Carry. |
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* |
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* arg[0] = pointer to source uint64_t |
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* arg[1] = immediate value (int32_t or larger) |
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* arg[2] = pointer to destination uint64_t |
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*/ |
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X(addic_dot) |
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{ |
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/* TODO/NOTE: Only for 32-bit mode, so far! */ |
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uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
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uint64_t tmp2 = tmp; |
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cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
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tmp2 += (uint32_t)ic->arg[1]; |
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if ((tmp2 >> 32) != (tmp >> 32)) |
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cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
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reg(ic->arg[2]) = (uint32_t)tmp2; |
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update_cr0(cpu, (uint32_t)tmp2); |
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} |
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|
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|
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/* |
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* bclr: Branch Conditional to Link Register |
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* |
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* arg[0] = bo |
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* arg[1] = 31 - bi |
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* arg[2] = bh |
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*/ |
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X(bclr) |
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{ |
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unsigned int bo = ic->arg[0], bi31m = ic->arg[1]; |
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int ctr_ok, cond_ok; |
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uint64_t old_pc = cpu->pc; |
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MODE_uint_t tmp, addr = cpu->cd.ppc.spr[SPR_LR]; |
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if (!(bo & 4)) |
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cpu->cd.ppc.spr[SPR_CTR] --; |
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ctr_ok = (bo >> 2) & 1; |
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tmp = cpu->cd.ppc.spr[SPR_CTR]; |
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ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
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cond_ok = (bo >> 4) & 1; |
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cond_ok |= ( ((bo >> 3) & 1) == ((cpu->cd.ppc.cr >> bi31m) & 1) ); |
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if (ctr_ok && cond_ok) { |
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uint64_t mask_within_page = |
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((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT) |
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| ((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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cpu->pc = addr & ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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/* TODO: trace in separate (duplicate) function? */ |
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if (cpu->machine->show_trace_tree) |
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cpu_functioncall_trace_return(cpu); |
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if ((old_pc & ~mask_within_page) == |
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(cpu->pc & ~mask_within_page)) { |
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cpu->cd.ppc.next_ic = |
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cpu->cd.ppc.cur_ic_page + |
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((cpu->pc & mask_within_page) >> |
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PPC_INSTR_ALIGNMENT_SHIFT); |
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} else { |
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/* Find the new physical page and update pointers: */ |
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quick_pc_to_pointers(cpu); |
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} |
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} |
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} |
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X(bclr_20) |
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{ |
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cpu->pc = cpu->cd.ppc.spr[SPR_LR]; |
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quick_pc_to_pointers(cpu); |
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} |
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X(bclr_l) |
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{ |
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uint64_t low_pc, old_pc = cpu->pc; |
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unsigned int bo = ic->arg[0], bi31m = ic->arg[1] /* ,bh = ic->arg[2]*/; |
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int ctr_ok, cond_ok; |
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MODE_uint_t tmp, addr = cpu->cd.ppc.spr[SPR_LR]; |
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if (!(bo & 4)) |
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cpu->cd.ppc.spr[SPR_CTR] --; |
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ctr_ok = (bo >> 2) & 1; |
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tmp = cpu->cd.ppc.spr[SPR_CTR]; |
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ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
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cond_ok = (bo >> 4) & 1; |
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cond_ok |= ( ((bo >> 3) & 1) == ((cpu->cd.ppc.cr >> bi31m) & 1) ); |
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|
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/* Calculate return PC: */ |
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low_pc = ((size_t)ic - (size_t) |
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cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
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cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
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<< PPC_INSTR_ALIGNMENT_SHIFT); |
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cpu->cd.ppc.spr[SPR_LR] += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
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|
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if (ctr_ok && cond_ok) { |
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uint64_t mask_within_page = |
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((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT) |
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| ((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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cpu->pc = addr & ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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/* TODO: trace in separate (duplicate) function? */ |
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if (cpu->machine->show_trace_tree) |
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cpu_functioncall_trace_return(cpu); |
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if (cpu->machine->show_trace_tree) |
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cpu_functioncall_trace(cpu, cpu->pc); |
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if ((old_pc & ~mask_within_page) == |
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(cpu->pc & ~mask_within_page)) { |
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cpu->cd.ppc.next_ic = |
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cpu->cd.ppc.cur_ic_page + |
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((cpu->pc & mask_within_page) >> |
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PPC_INSTR_ALIGNMENT_SHIFT); |
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} else { |
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/* Find the new physical page and update pointers: */ |
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quick_pc_to_pointers(cpu); |
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} |
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} |
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} |
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|
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|
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/* |
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* bcctr: Branch Conditional to Count register |
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* |
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* arg[0] = bo |
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* arg[1] = 31 - bi |
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* arg[2] = bh |
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*/ |
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X(bcctr) |
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{ |
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unsigned int bo = ic->arg[0], bi31m = ic->arg[1] /*,bh = ic->arg[2]*/; |
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uint64_t old_pc = cpu->pc; |
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MODE_uint_t addr = cpu->cd.ppc.spr[SPR_CTR]; |
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int cond_ok = (bo >> 4) & 1; |
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cond_ok |= ( ((bo >> 3) & 1) == ((cpu->cd.ppc.cr >> bi31m) & 1) ); |
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if (cond_ok) { |
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uint64_t mask_within_page = |
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((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT) |
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| ((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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cpu->pc = addr & ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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/* TODO: trace in separate (duplicate) function? */ |
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if (cpu->machine->show_trace_tree) |
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cpu_functioncall_trace_return(cpu); |
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if ((old_pc & ~mask_within_page) == |
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(cpu->pc & ~mask_within_page)) { |
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cpu->cd.ppc.next_ic = |
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cpu->cd.ppc.cur_ic_page + |
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((cpu->pc & mask_within_page) >> |
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PPC_INSTR_ALIGNMENT_SHIFT); |
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} else { |
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/* Find the new physical page and update pointers: */ |
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quick_pc_to_pointers(cpu); |
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} |
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} |
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} |
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X(bcctr_l) |
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{ |
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uint64_t low_pc, old_pc = cpu->pc; |
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unsigned int bo = ic->arg[0], bi31m = ic->arg[1] /*,bh = ic->arg[2] */; |
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MODE_uint_t addr = cpu->cd.ppc.spr[SPR_CTR]; |
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int cond_ok = (bo >> 4) & 1; |
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cond_ok |= ( ((bo >> 3) & 1) == ((cpu->cd.ppc.cr >> bi31m) & 1) ); |
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|
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/* Calculate return PC: */ |
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low_pc = ((size_t)ic - (size_t) |
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cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
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cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
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<< PPC_INSTR_ALIGNMENT_SHIFT); |
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cpu->cd.ppc.spr[SPR_LR] += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
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|
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if (cond_ok) { |
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uint64_t mask_within_page = |
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((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT) |
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| ((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
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cpu->pc = addr & ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
320 |
/* TODO: trace in separate (duplicate) function? */ |
321 |
if (cpu->machine->show_trace_tree) |
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cpu_functioncall_trace(cpu, cpu->pc); |
323 |
if ((old_pc & ~mask_within_page) == |
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(cpu->pc & ~mask_within_page)) { |
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cpu->cd.ppc.next_ic = |
326 |
cpu->cd.ppc.cur_ic_page + |
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((cpu->pc & mask_within_page) >> |
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PPC_INSTR_ALIGNMENT_SHIFT); |
329 |
} else { |
330 |
/* Find the new physical page and update pointers: */ |
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quick_pc_to_pointers(cpu); |
332 |
} |
333 |
} |
334 |
} |
335 |
|
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|
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/* |
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* b: Branch (to a different translated page) |
339 |
* |
340 |
* arg[0] = relative offset (as an int32_t) from start of page |
341 |
*/ |
342 |
X(b) |
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{ |
344 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT); |
345 |
cpu->pc += (int32_t)ic->arg[0]; |
346 |
|
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/* Find the new physical page and update the translation pointers: */ |
348 |
quick_pc_to_pointers(cpu); |
349 |
} |
350 |
X(ba) |
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{ |
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cpu->pc = (int32_t)ic->arg[0]; |
353 |
quick_pc_to_pointers(cpu); |
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} |
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|
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|
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/* |
358 |
* bc: Branch Conditional (to a different translated page) |
359 |
* |
360 |
* arg[0] = relative offset (as an int32_t) from start of page |
361 |
* arg[1] = bo |
362 |
* arg[2] = 31-bi |
363 |
*/ |
364 |
X(bc) |
365 |
{ |
366 |
MODE_uint_t tmp; |
367 |
unsigned int ctr_ok, cond_ok, bi31m = ic->arg[2], bo = ic->arg[1]; |
368 |
if (!(bo & 4)) |
369 |
cpu->cd.ppc.spr[SPR_CTR] --; |
370 |
ctr_ok = (bo >> 2) & 1; |
371 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
372 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
373 |
cond_ok = (bo >> 4) & 1; |
374 |
cond_ok |= ( ((bo >> 3) & 1) == |
375 |
((cpu->cd.ppc.cr >> (bi31m)) & 1) ); |
376 |
if (ctr_ok && cond_ok) |
377 |
instr(b)(cpu,ic); |
378 |
} |
379 |
X(bcl) |
380 |
{ |
381 |
MODE_uint_t tmp; |
382 |
unsigned int ctr_ok, cond_ok, bi31m = ic->arg[2], bo = ic->arg[1]; |
383 |
int low_pc; |
384 |
|
385 |
/* Calculate LR: */ |
386 |
low_pc = ((size_t)ic - (size_t) |
387 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
388 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
389 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
390 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
391 |
|
392 |
if (!(bo & 4)) |
393 |
cpu->cd.ppc.spr[SPR_CTR] --; |
394 |
ctr_ok = (bo >> 2) & 1; |
395 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
396 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
397 |
cond_ok = (bo >> 4) & 1; |
398 |
cond_ok |= ( ((bo >> 3) & 1) == |
399 |
((cpu->cd.ppc.cr >> bi31m) & 1) ); |
400 |
if (ctr_ok && cond_ok) |
401 |
instr(b)(cpu,ic); |
402 |
} |
403 |
|
404 |
|
405 |
/* |
406 |
* b_samepage: Branch (to within the same translated page) |
407 |
* |
408 |
* arg[0] = pointer to new ppc_instr_call |
409 |
*/ |
410 |
X(b_samepage) |
411 |
{ |
412 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
413 |
} |
414 |
|
415 |
|
416 |
/* |
417 |
* bc_samepage: Branch Conditional (to within the same page) |
418 |
* |
419 |
* arg[0] = new ic ptr |
420 |
* arg[1] = bo |
421 |
* arg[2] = 31-bi |
422 |
*/ |
423 |
X(bc_samepage) |
424 |
{ |
425 |
MODE_uint_t tmp; |
426 |
unsigned int ctr_ok, cond_ok, bi31m = ic->arg[2], bo = ic->arg[1]; |
427 |
if (!(bo & 4)) |
428 |
cpu->cd.ppc.spr[SPR_CTR] --; |
429 |
ctr_ok = (bo >> 2) & 1; |
430 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
431 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
432 |
cond_ok = (bo >> 4) & 1; |
433 |
cond_ok |= ( ((bo >> 3) & 1) == |
434 |
((cpu->cd.ppc.cr >> bi31m) & 1) ); |
435 |
if (ctr_ok && cond_ok) |
436 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
437 |
} |
438 |
X(bc_samepage_simple0) |
439 |
{ |
440 |
int bi31m = ic->arg[2]; |
441 |
if (!((cpu->cd.ppc.cr >> bi31m) & 1)) |
442 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
443 |
} |
444 |
X(bc_samepage_simple1) |
445 |
{ |
446 |
int bi31m = ic->arg[2]; |
447 |
if ((cpu->cd.ppc.cr >> bi31m) & 1) |
448 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
449 |
} |
450 |
X(bcl_samepage) |
451 |
{ |
452 |
MODE_uint_t tmp; |
453 |
unsigned int ctr_ok, cond_ok, bi31m = ic->arg[2], bo = ic->arg[1]; |
454 |
int low_pc; |
455 |
|
456 |
/* Calculate LR: */ |
457 |
low_pc = ((size_t)ic - (size_t) |
458 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
459 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
460 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
461 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
462 |
|
463 |
if (!(bo & 4)) |
464 |
cpu->cd.ppc.spr[SPR_CTR] --; |
465 |
ctr_ok = (bo >> 2) & 1; |
466 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
467 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
468 |
cond_ok = (bo >> 4) & 1; |
469 |
cond_ok |= ( ((bo >> 3) & 1) == |
470 |
((cpu->cd.ppc.cr >> bi31m) & 1) ); |
471 |
if (ctr_ok && cond_ok) |
472 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
473 |
} |
474 |
|
475 |
|
476 |
/* |
477 |
* bl: Branch and Link (to a different translated page) |
478 |
* |
479 |
* arg[0] = relative offset (as an int32_t) from start of page |
480 |
* arg[1] = lr offset (relative to start of current page) |
481 |
*/ |
482 |
X(bl) |
483 |
{ |
484 |
/* Calculate LR and new PC: */ |
485 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT); |
486 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc + ic->arg[1]; |
487 |
cpu->pc += (int32_t)ic->arg[0]; |
488 |
|
489 |
/* Find the new physical page and update the translation pointers: */ |
490 |
quick_pc_to_pointers(cpu); |
491 |
} |
492 |
X(bla) |
493 |
{ |
494 |
/* Calculate LR: */ |
495 |
cpu->cd.ppc.spr[SPR_LR] = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
496 |
<< PPC_INSTR_ALIGNMENT_SHIFT)) + ic->arg[1]; |
497 |
|
498 |
cpu->pc = (int32_t)ic->arg[0]; |
499 |
quick_pc_to_pointers(cpu); |
500 |
} |
501 |
|
502 |
|
503 |
/* |
504 |
* bl_trace: Branch and Link (to a different translated page) (with trace) |
505 |
* |
506 |
* arg[0] = relative offset (as an int32_t) from start of page |
507 |
* arg[1] = lr offset (relative to start of current page) |
508 |
*/ |
509 |
X(bl_trace) |
510 |
{ |
511 |
/* Calculate LR: */ |
512 |
cpu->cd.ppc.spr[SPR_LR] = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
513 |
<< PPC_INSTR_ALIGNMENT_SHIFT)) + ic->arg[1]; |
514 |
|
515 |
/* Calculate new PC from start of page + arg[0] */ |
516 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT); |
517 |
cpu->pc += (int32_t)ic->arg[0]; |
518 |
|
519 |
cpu_functioncall_trace(cpu, cpu->pc); |
520 |
|
521 |
/* Find the new physical page and update the translation pointers: */ |
522 |
quick_pc_to_pointers(cpu); |
523 |
} |
524 |
X(bla_trace) |
525 |
{ |
526 |
/* Calculate LR: */ |
527 |
cpu->cd.ppc.spr[SPR_LR] = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
528 |
<< PPC_INSTR_ALIGNMENT_SHIFT)) + ic->arg[1]; |
529 |
|
530 |
cpu->pc = (int32_t)ic->arg[0]; |
531 |
cpu_functioncall_trace(cpu, cpu->pc); |
532 |
quick_pc_to_pointers(cpu); |
533 |
} |
534 |
|
535 |
|
536 |
/* |
537 |
* bl_samepage: Branch and Link (to within the same translated page) |
538 |
* |
539 |
* arg[0] = pointer to new ppc_instr_call |
540 |
* arg[1] = lr offset (relative to start of current page) |
541 |
*/ |
542 |
X(bl_samepage) |
543 |
{ |
544 |
/* Calculate LR: */ |
545 |
cpu->cd.ppc.spr[SPR_LR] = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
546 |
<< PPC_INSTR_ALIGNMENT_SHIFT)) + ic->arg[1]; |
547 |
|
548 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
549 |
} |
550 |
|
551 |
|
552 |
/* |
553 |
* bl_samepage_trace: Branch and Link (to within the same translated page) |
554 |
* |
555 |
* arg[0] = pointer to new ppc_instr_call |
556 |
* arg[1] = lr offset (relative to start of current page) |
557 |
*/ |
558 |
X(bl_samepage_trace) |
559 |
{ |
560 |
uint32_t low_pc; |
561 |
|
562 |
/* Calculate LR: */ |
563 |
cpu->cd.ppc.spr[SPR_LR] = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
564 |
<< PPC_INSTR_ALIGNMENT_SHIFT)) + ic->arg[1]; |
565 |
|
566 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
567 |
|
568 |
/* Calculate new PC (for the trace) */ |
569 |
low_pc = ((size_t)cpu->cd.ppc.next_ic - (size_t) |
570 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
571 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT); |
572 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
573 |
cpu_functioncall_trace(cpu, cpu->pc); |
574 |
} |
575 |
|
576 |
|
577 |
/* |
578 |
* cntlzw: Count leading zeroes (32-bit word). |
579 |
* |
580 |
* arg[0] = ptr to rs |
581 |
* arg[1] = ptr to ra |
582 |
*/ |
583 |
X(cntlzw) |
584 |
{ |
585 |
uint32_t tmp = reg(ic->arg[0]); |
586 |
int i; |
587 |
for (i=0; i<32; i++) { |
588 |
if (tmp & 0x80000000) |
589 |
break; |
590 |
tmp <<= 1; |
591 |
} |
592 |
reg(ic->arg[1]) = i; |
593 |
} |
594 |
|
595 |
|
596 |
/* |
597 |
* cmpd: Compare Doubleword |
598 |
* |
599 |
* arg[0] = ptr to ra |
600 |
* arg[1] = ptr to rb |
601 |
* arg[2] = 28 - 4*bf |
602 |
*/ |
603 |
X(cmpd) |
604 |
{ |
605 |
int64_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
606 |
int bf_shift = ic->arg[2], c; |
607 |
if (tmp < tmp2) |
608 |
c = 8; |
609 |
else if (tmp > tmp2) |
610 |
c = 4; |
611 |
else |
612 |
c = 2; |
613 |
/* SO bit, copied from XER */ |
614 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
615 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
616 |
cpu->cd.ppc.cr |= (c << bf_shift); |
617 |
} |
618 |
|
619 |
|
620 |
/* |
621 |
* cmpld: Compare Doubleword, unsigned |
622 |
* |
623 |
* arg[0] = ptr to ra |
624 |
* arg[1] = ptr to rb |
625 |
* arg[2] = 28 - 4*bf |
626 |
*/ |
627 |
X(cmpld) |
628 |
{ |
629 |
uint64_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
630 |
int bf_shift = ic->arg[2], c; |
631 |
if (tmp < tmp2) |
632 |
c = 8; |
633 |
else if (tmp > tmp2) |
634 |
c = 4; |
635 |
else |
636 |
c = 2; |
637 |
/* SO bit, copied from XER */ |
638 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
639 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
640 |
cpu->cd.ppc.cr |= (c << bf_shift); |
641 |
} |
642 |
|
643 |
|
644 |
/* |
645 |
* cmpdi: Compare Doubleword immediate |
646 |
* |
647 |
* arg[0] = ptr to ra |
648 |
* arg[1] = int32_t imm |
649 |
* arg[2] = 28 - 4*bf |
650 |
*/ |
651 |
X(cmpdi) |
652 |
{ |
653 |
int64_t tmp = reg(ic->arg[0]), imm = (int32_t)ic->arg[1]; |
654 |
int bf_shift = ic->arg[2], c; |
655 |
if (tmp < imm) |
656 |
c = 8; |
657 |
else if (tmp > imm) |
658 |
c = 4; |
659 |
else |
660 |
c = 2; |
661 |
/* SO bit, copied from XER */ |
662 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
663 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
664 |
cpu->cd.ppc.cr |= (c << bf_shift); |
665 |
} |
666 |
|
667 |
|
668 |
/* |
669 |
* cmpldi: Compare Doubleword immediate, logical |
670 |
* |
671 |
* arg[0] = ptr to ra |
672 |
* arg[1] = int32_t imm |
673 |
* arg[2] = 28 - 4*bf |
674 |
*/ |
675 |
X(cmpldi) |
676 |
{ |
677 |
uint64_t tmp = reg(ic->arg[0]), imm = (uint32_t)ic->arg[1]; |
678 |
int bf_shift = ic->arg[2], c; |
679 |
if (tmp < imm) |
680 |
c = 8; |
681 |
else if (tmp > imm) |
682 |
c = 4; |
683 |
else |
684 |
c = 2; |
685 |
/* SO bit, copied from XER */ |
686 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
687 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
688 |
cpu->cd.ppc.cr |= (c << bf_shift); |
689 |
} |
690 |
|
691 |
|
692 |
/* |
693 |
* cmpw: Compare Word |
694 |
* |
695 |
* arg[0] = ptr to ra |
696 |
* arg[1] = ptr to rb |
697 |
* arg[2] = 28 - 4*bf |
698 |
*/ |
699 |
X(cmpw) |
700 |
{ |
701 |
int32_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
702 |
int bf_shift = ic->arg[2], c; |
703 |
if (tmp < tmp2) |
704 |
c = 8; |
705 |
else if (tmp > tmp2) |
706 |
c = 4; |
707 |
else |
708 |
c = 2; |
709 |
/* SO bit, copied from XER */ |
710 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
711 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
712 |
cpu->cd.ppc.cr |= (c << bf_shift); |
713 |
} |
714 |
X(cmpw_cr0) |
715 |
{ |
716 |
/* arg[2] is assumed to be 28 */ |
717 |
int32_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
718 |
cpu->cd.ppc.cr &= ~(0xf0000000); |
719 |
if (tmp < tmp2) |
720 |
cpu->cd.ppc.cr |= 0x80000000; |
721 |
else if (tmp > tmp2) |
722 |
cpu->cd.ppc.cr |= 0x40000000; |
723 |
else |
724 |
cpu->cd.ppc.cr |= 0x20000000; |
725 |
cpu->cd.ppc.cr |= ((cpu->cd.ppc.spr[SPR_XER] >> 3) & 0x10000000); |
726 |
} |
727 |
|
728 |
|
729 |
/* |
730 |
* cmplw: Compare Word, unsigned |
731 |
* |
732 |
* arg[0] = ptr to ra |
733 |
* arg[1] = ptr to rb |
734 |
* arg[2] = 28 - 4*bf |
735 |
*/ |
736 |
X(cmplw) |
737 |
{ |
738 |
uint32_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
739 |
int bf_shift = ic->arg[2], c; |
740 |
if (tmp < tmp2) |
741 |
c = 8; |
742 |
else if (tmp > tmp2) |
743 |
c = 4; |
744 |
else |
745 |
c = 2; |
746 |
/* SO bit, copied from XER */ |
747 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
748 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
749 |
cpu->cd.ppc.cr |= (c << bf_shift); |
750 |
} |
751 |
|
752 |
|
753 |
/* |
754 |
* cmpwi: Compare Word immediate |
755 |
* |
756 |
* arg[0] = ptr to ra |
757 |
* arg[1] = int32_t imm |
758 |
* arg[2] = 28 - 4*bf |
759 |
*/ |
760 |
X(cmpwi) |
761 |
{ |
762 |
int32_t tmp = reg(ic->arg[0]), imm = ic->arg[1]; |
763 |
int bf_shift = ic->arg[2], c; |
764 |
if (tmp < imm) |
765 |
c = 8; |
766 |
else if (tmp > imm) |
767 |
c = 4; |
768 |
else |
769 |
c = 2; |
770 |
/* SO bit, copied from XER */ |
771 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
772 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
773 |
cpu->cd.ppc.cr |= (c << bf_shift); |
774 |
} |
775 |
X(cmpwi_cr0) |
776 |
{ |
777 |
/* arg[2] is assumed to be 28 */ |
778 |
int32_t tmp = reg(ic->arg[0]), imm = ic->arg[1]; |
779 |
cpu->cd.ppc.cr &= ~(0xf0000000); |
780 |
if (tmp < imm) |
781 |
cpu->cd.ppc.cr |= 0x80000000; |
782 |
else if (tmp > imm) |
783 |
cpu->cd.ppc.cr |= 0x40000000; |
784 |
else |
785 |
cpu->cd.ppc.cr |= 0x20000000; |
786 |
cpu->cd.ppc.cr |= ((cpu->cd.ppc.spr[SPR_XER] >> 3) & 0x10000000); |
787 |
} |
788 |
|
789 |
|
790 |
/* |
791 |
* cmplwi: Compare Word immediate, logical |
792 |
* |
793 |
* arg[0] = ptr to ra |
794 |
* arg[1] = int32_t imm |
795 |
* arg[2] = 28 - 4*bf |
796 |
*/ |
797 |
X(cmplwi) |
798 |
{ |
799 |
uint32_t tmp = reg(ic->arg[0]), imm = ic->arg[1]; |
800 |
int bf_shift = ic->arg[2], c; |
801 |
if (tmp < imm) |
802 |
c = 8; |
803 |
else if (tmp > imm) |
804 |
c = 4; |
805 |
else |
806 |
c = 2; |
807 |
/* SO bit, copied from XER */ |
808 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
809 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
810 |
cpu->cd.ppc.cr |= (c << bf_shift); |
811 |
} |
812 |
|
813 |
|
814 |
/* |
815 |
* dcbz: Data-Cache Block Zero |
816 |
* |
817 |
* arg[0] = ptr to ra (or zero) |
818 |
* arg[1] = ptr to rb |
819 |
*/ |
820 |
X(dcbz) |
821 |
{ |
822 |
MODE_uint_t addr = reg(ic->arg[0]) + reg(ic->arg[1]); |
823 |
unsigned char cacheline[128]; |
824 |
size_t cacheline_size = 1 << cpu->cd.ppc.cpu_type.dlinesize; |
825 |
size_t cleared = 0; |
826 |
|
827 |
/* Synchronize the PC first: */ |
828 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[2]; |
829 |
|
830 |
addr &= ~(cacheline_size - 1); |
831 |
memset(cacheline, 0, sizeof(cacheline)); |
832 |
|
833 |
while (cleared < cacheline_size) { |
834 |
int to_clear = cacheline_size < sizeof(cacheline)? |
835 |
cacheline_size : sizeof(cacheline); |
836 |
#ifdef MODE32 |
837 |
unsigned char *page = cpu->cd.ppc.host_store[addr >> 12]; |
838 |
if (page != NULL) { |
839 |
memset(page + (addr & 0xfff), 0, to_clear); |
840 |
} else |
841 |
#endif |
842 |
if (cpu->memory_rw(cpu, cpu->mem, addr, cacheline, |
843 |
to_clear, MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
844 |
/* exception */ |
845 |
return; |
846 |
} |
847 |
|
848 |
cleared += to_clear; |
849 |
addr += to_clear; |
850 |
} |
851 |
} |
852 |
|
853 |
|
854 |
/* |
855 |
* mtfsf: Copy FPR into the FPSCR. |
856 |
* |
857 |
* arg[0] = ptr to frb |
858 |
* arg[1] = mask |
859 |
*/ |
860 |
X(mtfsf) |
861 |
{ |
862 |
CHECK_FOR_FPU_EXCEPTION; |
863 |
cpu->cd.ppc.fpscr &= ~ic->arg[1]; |
864 |
cpu->cd.ppc.fpscr |= (ic->arg[1] & (*(uint64_t *)ic->arg[0])); |
865 |
} |
866 |
|
867 |
|
868 |
/* |
869 |
* mffs: Copy FPSCR into a FPR. |
870 |
* |
871 |
* arg[0] = ptr to frt |
872 |
*/ |
873 |
X(mffs) |
874 |
{ |
875 |
CHECK_FOR_FPU_EXCEPTION; |
876 |
(*(uint64_t *)ic->arg[0]) = cpu->cd.ppc.fpscr; |
877 |
} |
878 |
|
879 |
|
880 |
/* |
881 |
* fmr: Floating-point Move |
882 |
* |
883 |
* arg[0] = ptr to frb |
884 |
* arg[1] = ptr to frt |
885 |
*/ |
886 |
X(fmr) |
887 |
{ |
888 |
/* |
889 |
* This works like a normal register to register copy, but |
890 |
* a) it can cause an FPU exception, and b) the move is always |
891 |
* 64-bit, even when running in 32-bit mode. |
892 |
*/ |
893 |
CHECK_FOR_FPU_EXCEPTION; |
894 |
*(uint64_t *)ic->arg[1] = *(uint64_t *)ic->arg[0]; |
895 |
} |
896 |
|
897 |
|
898 |
/* |
899 |
* fneg: Floating-point Negate |
900 |
* |
901 |
* arg[0] = ptr to frb |
902 |
* arg[1] = ptr to frt |
903 |
*/ |
904 |
X(fneg) |
905 |
{ |
906 |
uint64_t v; |
907 |
CHECK_FOR_FPU_EXCEPTION; |
908 |
v = *(uint64_t *)ic->arg[0]; |
909 |
*(uint64_t *)ic->arg[1] = v ^ 0x8000000000000000ULL; |
910 |
} |
911 |
|
912 |
|
913 |
/* |
914 |
* fcmpu: Floating-point Compare Unordered |
915 |
* |
916 |
* arg[0] = 28 - 4*bf (bitfield shift) |
917 |
* arg[1] = ptr to fra |
918 |
* arg[2] = ptr to frb |
919 |
*/ |
920 |
X(fcmpu) |
921 |
{ |
922 |
struct ieee_float_value fra, frb; |
923 |
int bf_shift = ic->arg[0], c = 0; |
924 |
|
925 |
CHECK_FOR_FPU_EXCEPTION; |
926 |
|
927 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
928 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[2], &frb, IEEE_FMT_D); |
929 |
if (fra.nan | frb.nan) { |
930 |
c = 1; |
931 |
} else { |
932 |
if (fra.f < frb.f) |
933 |
c = 8; |
934 |
else if (fra.f > frb.f) |
935 |
c = 4; |
936 |
else |
937 |
c = 2; |
938 |
} |
939 |
/* TODO: Signaling vs Quiet NaN */ |
940 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
941 |
cpu->cd.ppc.cr |= ((c&0xe) << bf_shift); |
942 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
943 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
944 |
} |
945 |
|
946 |
|
947 |
/* |
948 |
* frsp: Floating-point Round to Single Precision |
949 |
* |
950 |
* arg[0] = ptr to frb |
951 |
* arg[1] = ptr to frt |
952 |
*/ |
953 |
X(frsp) |
954 |
{ |
955 |
struct ieee_float_value frb; |
956 |
float fl = 0.0; |
957 |
int c = 0; |
958 |
|
959 |
CHECK_FOR_FPU_EXCEPTION; |
960 |
|
961 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &frb, IEEE_FMT_D); |
962 |
if (frb.nan) { |
963 |
c = 1; |
964 |
} else { |
965 |
fl = frb.f; |
966 |
if (fl < 0.0) |
967 |
c = 8; |
968 |
else if (fl > 0.0) |
969 |
c = 4; |
970 |
else |
971 |
c = 2; |
972 |
} |
973 |
/* TODO: Signaling vs Quiet NaN */ |
974 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
975 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
976 |
(*(uint64_t *)ic->arg[1]) = |
977 |
ieee_store_float_value(fl, IEEE_FMT_D, frb.nan); |
978 |
} |
979 |
|
980 |
|
981 |
/* |
982 |
* fctiwz: Floating-point Convert to Integer Word, Round to Zero |
983 |
* |
984 |
* arg[0] = ptr to frb |
985 |
* arg[1] = ptr to frt |
986 |
*/ |
987 |
X(fctiwz) |
988 |
{ |
989 |
struct ieee_float_value frb; |
990 |
uint32_t res = 0; |
991 |
|
992 |
CHECK_FOR_FPU_EXCEPTION; |
993 |
|
994 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &frb, IEEE_FMT_D); |
995 |
if (!frb.nan) { |
996 |
if (frb.f >= 2147483647.0) |
997 |
res = 0x7fffffff; |
998 |
else if (frb.f <= -2147483648.0) |
999 |
res = 0x80000000; |
1000 |
else |
1001 |
res = frb.f; |
1002 |
} |
1003 |
*(uint64_t *)ic->arg[1] = (uint32_t)res; |
1004 |
} |
1005 |
|
1006 |
|
1007 |
/* |
1008 |
* fmul: Floating-point Multiply |
1009 |
* |
1010 |
* arg[0] = ptr to frt |
1011 |
* arg[1] = ptr to fra |
1012 |
* arg[2] = ptr to frc |
1013 |
*/ |
1014 |
X(fmul) |
1015 |
{ |
1016 |
struct ieee_float_value fra; |
1017 |
struct ieee_float_value frc; |
1018 |
double result = 0.0; |
1019 |
int c, nan = 0; |
1020 |
|
1021 |
CHECK_FOR_FPU_EXCEPTION; |
1022 |
|
1023 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1024 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[2], &frc, IEEE_FMT_D); |
1025 |
if (fra.nan || frc.nan) |
1026 |
nan = 1; |
1027 |
else |
1028 |
result = fra.f * frc.f; |
1029 |
if (nan) |
1030 |
c = 1; |
1031 |
else { |
1032 |
if (result < 0.0) |
1033 |
c = 8; |
1034 |
else if (result > 0.0) |
1035 |
c = 4; |
1036 |
else |
1037 |
c = 2; |
1038 |
} |
1039 |
/* TODO: Signaling vs Quiet NaN */ |
1040 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1041 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1042 |
|
1043 |
(*(uint64_t *)ic->arg[0]) = |
1044 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1045 |
} |
1046 |
X(fmuls) |
1047 |
{ |
1048 |
/* TODO */ |
1049 |
instr(fmul)(cpu, ic); |
1050 |
} |
1051 |
|
1052 |
|
1053 |
/* |
1054 |
* fmadd: Floating-point Multiply and Add |
1055 |
* |
1056 |
* arg[0] = ptr to frt |
1057 |
* arg[1] = ptr to fra |
1058 |
* arg[2] = copy of the instruction word |
1059 |
*/ |
1060 |
X(fmadd) |
1061 |
{ |
1062 |
uint32_t iw = ic->arg[2]; |
1063 |
int b = (iw >> 11) & 31, c = (iw >> 6) & 31; |
1064 |
struct ieee_float_value fra; |
1065 |
struct ieee_float_value frb; |
1066 |
struct ieee_float_value frc; |
1067 |
double result = 0.0; |
1068 |
int nan = 0, cc; |
1069 |
|
1070 |
CHECK_FOR_FPU_EXCEPTION; |
1071 |
|
1072 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1073 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[b], &frb, IEEE_FMT_D); |
1074 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[c], &frc, IEEE_FMT_D); |
1075 |
if (fra.nan || frb.nan || frc.nan) |
1076 |
nan = 1; |
1077 |
else |
1078 |
result = fra.f * frc.f + frb.f; |
1079 |
if (nan) |
1080 |
cc = 1; |
1081 |
else { |
1082 |
if (result < 0.0) |
1083 |
cc = 8; |
1084 |
else if (result > 0.0) |
1085 |
cc = 4; |
1086 |
else |
1087 |
cc = 2; |
1088 |
} |
1089 |
/* TODO: Signaling vs Quiet NaN */ |
1090 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1091 |
cpu->cd.ppc.fpscr |= (cc << PPC_FPSCR_FPCC_SHIFT); |
1092 |
|
1093 |
(*(uint64_t *)ic->arg[0]) = |
1094 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1095 |
} |
1096 |
|
1097 |
|
1098 |
/* |
1099 |
* fmsub: Floating-point Multiply and Sub |
1100 |
* |
1101 |
* arg[0] = ptr to frt |
1102 |
* arg[1] = ptr to fra |
1103 |
* arg[2] = copy of the instruction word |
1104 |
*/ |
1105 |
X(fmsub) |
1106 |
{ |
1107 |
uint32_t iw = ic->arg[2]; |
1108 |
int b = (iw >> 11) & 31, c = (iw >> 6) & 31; |
1109 |
struct ieee_float_value fra; |
1110 |
struct ieee_float_value frb; |
1111 |
struct ieee_float_value frc; |
1112 |
double result = 0.0; |
1113 |
int nan = 0, cc; |
1114 |
|
1115 |
CHECK_FOR_FPU_EXCEPTION; |
1116 |
|
1117 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1118 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[b], &frb, IEEE_FMT_D); |
1119 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[c], &frc, IEEE_FMT_D); |
1120 |
if (fra.nan || frb.nan || frc.nan) |
1121 |
nan = 1; |
1122 |
else |
1123 |
result = fra.f * frc.f - frb.f; |
1124 |
if (nan) |
1125 |
cc = 1; |
1126 |
else { |
1127 |
if (result < 0.0) |
1128 |
cc = 8; |
1129 |
else if (result > 0.0) |
1130 |
cc = 4; |
1131 |
else |
1132 |
cc = 2; |
1133 |
} |
1134 |
/* TODO: Signaling vs Quiet NaN */ |
1135 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1136 |
cpu->cd.ppc.fpscr |= (cc << PPC_FPSCR_FPCC_SHIFT); |
1137 |
|
1138 |
(*(uint64_t *)ic->arg[0]) = |
1139 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1140 |
} |
1141 |
|
1142 |
|
1143 |
/* |
1144 |
* fadd, fsub, fdiv: Various Floating-point operationgs |
1145 |
* |
1146 |
* arg[0] = ptr to fra |
1147 |
* arg[1] = ptr to frb |
1148 |
* arg[2] = ptr to frt |
1149 |
*/ |
1150 |
X(fadd) |
1151 |
{ |
1152 |
struct ieee_float_value fra; |
1153 |
struct ieee_float_value frb; |
1154 |
double result = 0.0; |
1155 |
int nan = 0, c; |
1156 |
|
1157 |
CHECK_FOR_FPU_EXCEPTION; |
1158 |
|
1159 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1160 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1161 |
if (fra.nan || frb.nan) |
1162 |
nan = 1; |
1163 |
else |
1164 |
result = fra.f + frb.f; |
1165 |
if (nan) |
1166 |
c = 1; |
1167 |
else { |
1168 |
if (result < 0.0) |
1169 |
c = 8; |
1170 |
else if (result > 0.0) |
1171 |
c = 4; |
1172 |
else |
1173 |
c = 2; |
1174 |
} |
1175 |
/* TODO: Signaling vs Quiet NaN */ |
1176 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1177 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1178 |
|
1179 |
(*(uint64_t *)ic->arg[2]) = |
1180 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1181 |
} |
1182 |
X(fadds) |
1183 |
{ |
1184 |
/* TODO */ |
1185 |
instr(fadd)(cpu, ic); |
1186 |
} |
1187 |
X(fsub) |
1188 |
{ |
1189 |
struct ieee_float_value fra; |
1190 |
struct ieee_float_value frb; |
1191 |
double result = 0.0; |
1192 |
int nan = 0, c; |
1193 |
|
1194 |
CHECK_FOR_FPU_EXCEPTION; |
1195 |
|
1196 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1197 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1198 |
if (fra.nan || frb.nan) |
1199 |
nan = 1; |
1200 |
else |
1201 |
result = fra.f - frb.f; |
1202 |
if (nan) |
1203 |
c = 1; |
1204 |
else { |
1205 |
if (result < 0.0) |
1206 |
c = 8; |
1207 |
else if (result > 0.0) |
1208 |
c = 4; |
1209 |
else |
1210 |
c = 2; |
1211 |
} |
1212 |
/* TODO: Signaling vs Quiet NaN */ |
1213 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1214 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1215 |
|
1216 |
(*(uint64_t *)ic->arg[2]) = |
1217 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1218 |
} |
1219 |
X(fsubs) |
1220 |
{ |
1221 |
/* TODO */ |
1222 |
instr(fsub)(cpu, ic); |
1223 |
} |
1224 |
X(fdiv) |
1225 |
{ |
1226 |
struct ieee_float_value fra; |
1227 |
struct ieee_float_value frb; |
1228 |
double result = 0.0; |
1229 |
int nan = 0, c; |
1230 |
|
1231 |
CHECK_FOR_FPU_EXCEPTION; |
1232 |
|
1233 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1234 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1235 |
if (fra.nan || frb.nan || frb.f == 0) |
1236 |
nan = 1; |
1237 |
else |
1238 |
result = fra.f / frb.f; |
1239 |
if (nan) |
1240 |
c = 1; |
1241 |
else { |
1242 |
if (result < 0.0) |
1243 |
c = 8; |
1244 |
else if (result > 0.0) |
1245 |
c = 4; |
1246 |
else |
1247 |
c = 2; |
1248 |
} |
1249 |
/* TODO: Signaling vs Quiet NaN */ |
1250 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1251 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1252 |
|
1253 |
(*(uint64_t *)ic->arg[2]) = |
1254 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1255 |
} |
1256 |
X(fdivs) |
1257 |
{ |
1258 |
/* TODO */ |
1259 |
instr(fdiv)(cpu, ic); |
1260 |
} |
1261 |
|
1262 |
|
1263 |
/* |
1264 |
* llsc: Load-linked and store conditional |
1265 |
* |
1266 |
* arg[0] = copy of the instruction word. |
1267 |
*/ |
1268 |
X(llsc) |
1269 |
{ |
1270 |
int iw = ic->arg[0], len = 4, load = 0, xo = (iw >> 1) & 1023; |
1271 |
int i, rc = iw & 1, rt, ra, rb; |
1272 |
uint64_t addr = 0, value; |
1273 |
unsigned char d[8]; |
1274 |
|
1275 |
switch (xo) { |
1276 |
case PPC_31_LDARX: |
1277 |
len = 8; |
1278 |
case PPC_31_LWARX: |
1279 |
load = 1; |
1280 |
break; |
1281 |
case PPC_31_STDCX_DOT: |
1282 |
len = 8; |
1283 |
case PPC_31_STWCX_DOT: |
1284 |
break; |
1285 |
} |
1286 |
|
1287 |
rt = (iw >> 21) & 31; |
1288 |
ra = (iw >> 16) & 31; |
1289 |
rb = (iw >> 11) & 31; |
1290 |
|
1291 |
if (ra != 0) |
1292 |
addr = cpu->cd.ppc.gpr[ra]; |
1293 |
addr += cpu->cd.ppc.gpr[rb]; |
1294 |
|
1295 |
if (load) { |
1296 |
if (rc) { |
1297 |
fatal("ll: rc-bit set?\n"); |
1298 |
exit(1); |
1299 |
} |
1300 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, len, |
1301 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1302 |
fatal("ll: error: TODO\n"); |
1303 |
exit(1); |
1304 |
} |
1305 |
|
1306 |
value = 0; |
1307 |
for (i=0; i<len; i++) { |
1308 |
value <<= 8; |
1309 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1310 |
value |= d[i]; |
1311 |
else |
1312 |
value |= d[len - 1 - i]; |
1313 |
} |
1314 |
|
1315 |
cpu->cd.ppc.gpr[rt] = value; |
1316 |
cpu->cd.ppc.ll_addr = addr; |
1317 |
cpu->cd.ppc.ll_bit = 1; |
1318 |
} else { |
1319 |
uint32_t old_so = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_SO; |
1320 |
if (!rc) { |
1321 |
fatal("sc: rc-bit not set?\n"); |
1322 |
exit(1); |
1323 |
} |
1324 |
|
1325 |
value = cpu->cd.ppc.gpr[rt]; |
1326 |
|
1327 |
/* "If the store is performed, bits 0-2 of Condition |
1328 |
Register Field 0 are set to 0b001, otherwise, they are |
1329 |
set to 0b000. The SO bit of the XER is copied to to bit |
1330 |
4 of Condition Register Field 0. */ |
1331 |
if (!cpu->cd.ppc.ll_bit || cpu->cd.ppc.ll_addr != addr) { |
1332 |
cpu->cd.ppc.cr &= 0x0fffffff; |
1333 |
if (old_so) |
1334 |
cpu->cd.ppc.cr |= 0x10000000; |
1335 |
cpu->cd.ppc.ll_bit = 0; |
1336 |
return; |
1337 |
} |
1338 |
|
1339 |
for (i=0; i<len; i++) { |
1340 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1341 |
d[len - 1 - i] = value >> (8*i); |
1342 |
else |
1343 |
d[i] = value >> (8*i); |
1344 |
} |
1345 |
|
1346 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, len, |
1347 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1348 |
fatal("sc: error: TODO\n"); |
1349 |
exit(1); |
1350 |
} |
1351 |
|
1352 |
cpu->cd.ppc.cr &= 0x0fffffff; |
1353 |
cpu->cd.ppc.cr |= 0x20000000; /* success! */ |
1354 |
if (old_so) |
1355 |
cpu->cd.ppc.cr |= 0x10000000; |
1356 |
|
1357 |
/* Clear _all_ CPUs' ll_bits: */ |
1358 |
for (i=0; i<cpu->machine->ncpus; i++) |
1359 |
cpu->machine->cpus[i]->cd.ppc.ll_bit = 0; |
1360 |
} |
1361 |
} |
1362 |
|
1363 |
|
1364 |
/* |
1365 |
* mtsr, mtsrin: Move To Segment Register [Indirect] |
1366 |
* |
1367 |
* arg[0] = sr number, or for indirect mode: ptr to rb |
1368 |
* arg[1] = ptr to rt |
1369 |
* |
1370 |
* TODO: These only work for 32-bit mode! |
1371 |
*/ |
1372 |
X(mtsr) |
1373 |
{ |
1374 |
int sr_num = ic->arg[0]; |
1375 |
uint32_t old = cpu->cd.ppc.sr[sr_num]; |
1376 |
cpu->cd.ppc.sr[sr_num] = reg(ic->arg[1]); |
1377 |
|
1378 |
if (cpu->cd.ppc.sr[sr_num] != old) |
1379 |
cpu->invalidate_translation_caches(cpu, ic->arg[0] << 28, |
1380 |
INVALIDATE_ALL | INVALIDATE_VADDR_UPPER4); |
1381 |
} |
1382 |
X(mtsrin) |
1383 |
{ |
1384 |
int sr_num = reg(ic->arg[0]) >> 28; |
1385 |
uint32_t old = cpu->cd.ppc.sr[sr_num]; |
1386 |
cpu->cd.ppc.sr[sr_num] = reg(ic->arg[1]); |
1387 |
|
1388 |
if (cpu->cd.ppc.sr[sr_num] != old) |
1389 |
cpu->invalidate_translation_caches(cpu, sr_num << 28, |
1390 |
INVALIDATE_ALL | INVALIDATE_VADDR_UPPER4); |
1391 |
} |
1392 |
|
1393 |
|
1394 |
/* |
1395 |
* mfsrin, mtsrin: Move From/To Segment Register Indirect |
1396 |
* |
1397 |
* arg[0] = sr number, or for indirect mode: ptr to rb |
1398 |
* arg[1] = ptr to rt |
1399 |
*/ |
1400 |
X(mfsr) |
1401 |
{ |
1402 |
/* TODO: This only works for 32-bit mode */ |
1403 |
reg(ic->arg[1]) = cpu->cd.ppc.sr[ic->arg[0]]; |
1404 |
} |
1405 |
X(mfsrin) |
1406 |
{ |
1407 |
/* TODO: This only works for 32-bit mode */ |
1408 |
uint32_t sr_num = reg(ic->arg[0]) >> 28; |
1409 |
reg(ic->arg[1]) = cpu->cd.ppc.sr[sr_num]; |
1410 |
} |
1411 |
|
1412 |
|
1413 |
/* |
1414 |
* rldicl: |
1415 |
* |
1416 |
* arg[0] = copy of the instruction word |
1417 |
*/ |
1418 |
X(rldicl) |
1419 |
{ |
1420 |
int rs = (ic->arg[0] >> 21) & 31; |
1421 |
int ra = (ic->arg[0] >> 16) & 31; |
1422 |
int sh = ((ic->arg[0] >> 11) & 31) | ((ic->arg[0] & 2) << 4); |
1423 |
int mb = ((ic->arg[0] >> 6) & 31) | (ic->arg[0] & 0x20); |
1424 |
int rc = ic->arg[0] & 1; |
1425 |
uint64_t tmp = cpu->cd.ppc.gpr[rs], tmp2; |
1426 |
/* TODO: Fix this, its performance is awful: */ |
1427 |
while (sh-- != 0) { |
1428 |
int b = (tmp >> 63) & 1; |
1429 |
tmp = (tmp << 1) | b; |
1430 |
} |
1431 |
tmp2 = 0; |
1432 |
while (mb <= 63) { |
1433 |
tmp |= ((uint64_t)1 << (63-mb)); |
1434 |
mb ++; |
1435 |
} |
1436 |
cpu->cd.ppc.gpr[ra] = tmp & tmp2; |
1437 |
if (rc) |
1438 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
1439 |
} |
1440 |
|
1441 |
|
1442 |
/* |
1443 |
* rldicr: |
1444 |
* |
1445 |
* arg[0] = copy of the instruction word |
1446 |
*/ |
1447 |
X(rldicr) |
1448 |
{ |
1449 |
int rs = (ic->arg[0] >> 21) & 31; |
1450 |
int ra = (ic->arg[0] >> 16) & 31; |
1451 |
int sh = ((ic->arg[0] >> 11) & 31) | ((ic->arg[0] & 2) << 4); |
1452 |
int me = ((ic->arg[0] >> 6) & 31) | (ic->arg[0] & 0x20); |
1453 |
int rc = ic->arg[0] & 1; |
1454 |
uint64_t tmp = cpu->cd.ppc.gpr[rs]; |
1455 |
/* TODO: Fix this, its performance is awful: */ |
1456 |
while (sh-- != 0) { |
1457 |
int b = (tmp >> 63) & 1; |
1458 |
tmp = (tmp << 1) | b; |
1459 |
} |
1460 |
while (me++ < 63) |
1461 |
tmp &= ~((uint64_t)1 << (63-me)); |
1462 |
cpu->cd.ppc.gpr[ra] = tmp; |
1463 |
if (rc) |
1464 |
update_cr0(cpu, tmp); |
1465 |
} |
1466 |
|
1467 |
|
1468 |
/* |
1469 |
* rldimi: |
1470 |
* |
1471 |
* arg[0] = copy of the instruction word |
1472 |
*/ |
1473 |
X(rldimi) |
1474 |
{ |
1475 |
uint32_t iw = ic->arg[0]; |
1476 |
int rs = (iw >> 21) & 31, ra = (iw >> 16) & 31; |
1477 |
int sh = ((iw >> 11) & 31) | ((iw & 2) << 4); |
1478 |
int mb = ((iw >> 6) & 31) | (iw & 0x20); |
1479 |
int rc = ic->arg[0] & 1; |
1480 |
int m; |
1481 |
uint64_t tmp, s = cpu->cd.ppc.gpr[rs]; |
1482 |
/* TODO: Fix this, its performance is awful: */ |
1483 |
while (sh-- != 0) { |
1484 |
int b = (s >> 63) & 1; |
1485 |
s = (s << 1) | b; |
1486 |
} |
1487 |
m = mb; tmp = 0; |
1488 |
do { |
1489 |
tmp |= ((uint64_t)1 << (63-m)); |
1490 |
m ++; |
1491 |
} while (m != 63 - sh); |
1492 |
cpu->cd.ppc.gpr[ra] &= ~tmp; |
1493 |
cpu->cd.ppc.gpr[ra] |= (tmp & s); |
1494 |
if (rc) |
1495 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
1496 |
} |
1497 |
|
1498 |
|
1499 |
/* |
1500 |
* rlwnm: |
1501 |
* |
1502 |
* arg[0] = ptr to ra |
1503 |
* arg[1] = mask |
1504 |
* arg[2] = copy of the instruction word |
1505 |
*/ |
1506 |
X(rlwnm) |
1507 |
{ |
1508 |
uint32_t tmp, iword = ic->arg[2]; |
1509 |
int rs = (iword >> 21) & 31; |
1510 |
int rb = (iword >> 11) & 31; |
1511 |
int sh = cpu->cd.ppc.gpr[rb] & 0x1f; |
1512 |
tmp = (uint32_t)cpu->cd.ppc.gpr[rs]; |
1513 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1514 |
tmp &= (uint32_t)ic->arg[1]; |
1515 |
reg(ic->arg[0]) = tmp; |
1516 |
} |
1517 |
DOT0(rlwnm) |
1518 |
|
1519 |
|
1520 |
/* |
1521 |
* rlwinm: |
1522 |
* |
1523 |
* arg[0] = ptr to ra |
1524 |
* arg[1] = mask |
1525 |
* arg[2] = copy of the instruction word |
1526 |
*/ |
1527 |
X(rlwinm) |
1528 |
{ |
1529 |
uint32_t tmp, iword = ic->arg[2]; |
1530 |
int rs = (iword >> 21) & 31; |
1531 |
int sh = (iword >> 11) & 31; |
1532 |
tmp = (uint32_t)cpu->cd.ppc.gpr[rs]; |
1533 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1534 |
tmp &= (uint32_t)ic->arg[1]; |
1535 |
reg(ic->arg[0]) = tmp; |
1536 |
} |
1537 |
DOT0(rlwinm) |
1538 |
|
1539 |
|
1540 |
/* |
1541 |
* rlwimi: |
1542 |
* |
1543 |
* arg[0] = ptr to rs |
1544 |
* arg[1] = ptr to ra |
1545 |
* arg[2] = copy of the instruction word |
1546 |
*/ |
1547 |
X(rlwimi) |
1548 |
{ |
1549 |
MODE_uint_t tmp = reg(ic->arg[0]), ra = reg(ic->arg[1]); |
1550 |
uint32_t iword = ic->arg[2]; |
1551 |
int sh = (iword >> 11) & 31; |
1552 |
int mb = (iword >> 6) & 31; |
1553 |
int me = (iword >> 1) & 31; |
1554 |
int rc = iword & 1; |
1555 |
|
1556 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1557 |
|
1558 |
for (;;) { |
1559 |
uint64_t mask; |
1560 |
mask = (uint64_t)1 << (31-mb); |
1561 |
ra &= ~mask; |
1562 |
ra |= (tmp & mask); |
1563 |
if (mb == me) |
1564 |
break; |
1565 |
mb ++; |
1566 |
if (mb == 32) |
1567 |
mb = 0; |
1568 |
} |
1569 |
reg(ic->arg[1]) = ra; |
1570 |
if (rc) |
1571 |
update_cr0(cpu, ra); |
1572 |
} |
1573 |
|
1574 |
|
1575 |
/* |
1576 |
* srawi: |
1577 |
* |
1578 |
* arg[0] = ptr to rs |
1579 |
* arg[1] = ptr to ra |
1580 |
* arg[2] = sh (shift amount) |
1581 |
*/ |
1582 |
X(srawi) |
1583 |
{ |
1584 |
uint32_t tmp = reg(ic->arg[0]); |
1585 |
int i = 0, j = 0, sh = ic->arg[2]; |
1586 |
|
1587 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
1588 |
if (tmp & 0x80000000) |
1589 |
i = 1; |
1590 |
while (sh-- > 0) { |
1591 |
if (tmp & 1) |
1592 |
j ++; |
1593 |
tmp >>= 1; |
1594 |
if (tmp & 0x40000000) |
1595 |
tmp |= 0x80000000; |
1596 |
} |
1597 |
if (i && j>0) |
1598 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
1599 |
reg(ic->arg[1]) = (int64_t)(int32_t)tmp; |
1600 |
} |
1601 |
DOT1(srawi) |
1602 |
|
1603 |
|
1604 |
/* |
1605 |
* mcrf: Move inside condition register |
1606 |
* |
1607 |
* arg[0] = 28-4*bf, arg[1] = 28-4*bfa |
1608 |
*/ |
1609 |
X(mcrf) |
1610 |
{ |
1611 |
int bf_shift = ic->arg[0], bfa_shift = ic->arg[1]; |
1612 |
uint32_t tmp = (cpu->cd.ppc.cr >> bfa_shift) & 0xf; |
1613 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
1614 |
cpu->cd.ppc.cr |= (tmp << bf_shift); |
1615 |
} |
1616 |
|
1617 |
|
1618 |
/* |
1619 |
* crand, crxor etc: Condition Register operations |
1620 |
* |
1621 |
* arg[0] = copy of the instruction word |
1622 |
*/ |
1623 |
X(crand) { |
1624 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1625 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1626 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1627 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1628 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1629 |
if (ba & bb) |
1630 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1631 |
} |
1632 |
X(crandc) { |
1633 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1634 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1635 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1636 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1637 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1638 |
if (!(ba & bb)) |
1639 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1640 |
} |
1641 |
X(creqv) { |
1642 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1643 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1644 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1645 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1646 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1647 |
if (!(ba ^ bb)) |
1648 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1649 |
} |
1650 |
X(cror) { |
1651 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1652 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1653 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1654 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1655 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1656 |
if (ba | bb) |
1657 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1658 |
} |
1659 |
X(crorc) { |
1660 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1661 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1662 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1663 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1664 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1665 |
if (!(ba | bb)) |
1666 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1667 |
} |
1668 |
X(crnor) { |
1669 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1670 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1671 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1672 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1673 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1674 |
if (!(ba | bb)) |
1675 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1676 |
} |
1677 |
X(crxor) { |
1678 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1679 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1680 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1681 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1682 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1683 |
if (ba ^ bb) |
1684 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1685 |
} |
1686 |
|
1687 |
|
1688 |
/* |
1689 |
* mfspr: Move from SPR |
1690 |
* |
1691 |
* arg[0] = pointer to destination register |
1692 |
* arg[1] = pointer to source SPR |
1693 |
*/ |
1694 |
X(mfspr) { |
1695 |
/* TODO: Check permission */ |
1696 |
reg(ic->arg[0]) = reg(ic->arg[1]); |
1697 |
} |
1698 |
X(mfspr_pmc1) { |
1699 |
/* |
1700 |
* TODO: This is a temporary hack to make NetBSD/ppc detect |
1701 |
* a CPU of the correct (emulated) speed. |
1702 |
*/ |
1703 |
reg(ic->arg[0]) = cpu->machine->emulated_hz / 10; |
1704 |
} |
1705 |
X(mftb) { |
1706 |
/* NOTE/TODO: This increments the time base (slowly) if it |
1707 |
is being polled. */ |
1708 |
if (++cpu->cd.ppc.spr[SPR_TBL] == 0) |
1709 |
cpu->cd.ppc.spr[SPR_TBU] ++; |
1710 |
reg(ic->arg[0]) = cpu->cd.ppc.spr[SPR_TBL]; |
1711 |
} |
1712 |
X(mftbu) { |
1713 |
reg(ic->arg[0]) = cpu->cd.ppc.spr[SPR_TBU]; |
1714 |
} |
1715 |
|
1716 |
|
1717 |
/* |
1718 |
* mtspr: Move to SPR. |
1719 |
* |
1720 |
* arg[0] = pointer to source register |
1721 |
* arg[1] = pointer to the SPR |
1722 |
*/ |
1723 |
X(mtspr) { |
1724 |
/* TODO: Check permission */ |
1725 |
reg(ic->arg[1]) = reg(ic->arg[0]); |
1726 |
} |
1727 |
X(mtlr) { |
1728 |
cpu->cd.ppc.spr[SPR_LR] = reg(ic->arg[0]); |
1729 |
} |
1730 |
X(mtctr) { |
1731 |
cpu->cd.ppc.spr[SPR_CTR] = reg(ic->arg[0]); |
1732 |
} |
1733 |
|
1734 |
|
1735 |
/* |
1736 |
* rfi[d]: Return from Interrupt |
1737 |
*/ |
1738 |
X(rfi) |
1739 |
{ |
1740 |
uint64_t tmp; |
1741 |
|
1742 |
reg_access_msr(cpu, &tmp, 0, 0); |
1743 |
tmp &= ~0xffff; |
1744 |
tmp |= (cpu->cd.ppc.spr[SPR_SRR1] & 0xffff); |
1745 |
reg_access_msr(cpu, &tmp, 1, 0); |
1746 |
|
1747 |
cpu->pc = cpu->cd.ppc.spr[SPR_SRR0]; |
1748 |
quick_pc_to_pointers(cpu); |
1749 |
} |
1750 |
X(rfid) |
1751 |
{ |
1752 |
uint64_t tmp, mask = 0x800000000000ff73ULL; |
1753 |
|
1754 |
reg_access_msr(cpu, &tmp, 0, 0); |
1755 |
tmp &= ~mask; |
1756 |
tmp |= (cpu->cd.ppc.spr[SPR_SRR1] & mask); |
1757 |
reg_access_msr(cpu, &tmp, 1, 0); |
1758 |
|
1759 |
cpu->pc = cpu->cd.ppc.spr[SPR_SRR0]; |
1760 |
if (!(tmp & PPC_MSR_SF)) |
1761 |
cpu->pc = (uint32_t)cpu->pc; |
1762 |
quick_pc_to_pointers(cpu); |
1763 |
} |
1764 |
|
1765 |
|
1766 |
/* |
1767 |
* mfcr: Move From Condition Register |
1768 |
* |
1769 |
* arg[0] = pointer to destination register |
1770 |
*/ |
1771 |
X(mfcr) |
1772 |
{ |
1773 |
reg(ic->arg[0]) = cpu->cd.ppc.cr; |
1774 |
} |
1775 |
|
1776 |
|
1777 |
/* |
1778 |
* mfmsr: Move From MSR |
1779 |
* |
1780 |
* arg[0] = pointer to destination register |
1781 |
*/ |
1782 |
X(mfmsr) |
1783 |
{ |
1784 |
reg_access_msr(cpu, (uint64_t*)ic->arg[0], 0, 0); |
1785 |
} |
1786 |
|
1787 |
|
1788 |
/* |
1789 |
* mtmsr: Move To MSR |
1790 |
* |
1791 |
* arg[0] = pointer to source register |
1792 |
* arg[1] = page offset of the next instruction |
1793 |
* arg[2] = 0 for 32-bit (mtmsr), 1 for 64-bit (mtmsrd) |
1794 |
*/ |
1795 |
X(mtmsr) |
1796 |
{ |
1797 |
MODE_uint_t old_pc; |
1798 |
uint64_t x = reg(ic->arg[0]); |
1799 |
|
1800 |
/* TODO: check permission! */ |
1801 |
|
1802 |
/* Synchronize the PC (pointing to _after_ this instruction) */ |
1803 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[1]; |
1804 |
old_pc = cpu->pc; |
1805 |
|
1806 |
if (!ic->arg[2]) { |
1807 |
uint64_t y; |
1808 |
reg_access_msr(cpu, &y, 0, 0); |
1809 |
x = (y & 0xffffffff00000000ULL) | (x & 0xffffffffULL); |
1810 |
} |
1811 |
|
1812 |
reg_access_msr(cpu, &x, 1, 1); |
1813 |
|
1814 |
/* |
1815 |
* Super-ugly hack: If the pc wasn't changed (i.e. if there was no |
1816 |
* exception while accessing the msr), then we _decrease_ the PC by 4 |
1817 |
* again. This is because the next ic could be an end_of_page. |
1818 |
*/ |
1819 |
if ((MODE_uint_t)cpu->pc == old_pc) |
1820 |
cpu->pc -= 4; |
1821 |
} |
1822 |
|
1823 |
|
1824 |
/* |
1825 |
* wrteei: Write EE immediate (on PPC405GP) |
1826 |
* |
1827 |
* arg[0] = either 0 or 0x8000 |
1828 |
*/ |
1829 |
X(wrteei) |
1830 |
{ |
1831 |
/* TODO: check permission! */ |
1832 |
uint64_t x; |
1833 |
|
1834 |
/* Synchronize the PC (pointing to _after_ this instruction) */ |
1835 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[1]; |
1836 |
|
1837 |
reg_access_msr(cpu, &x, 0, 0); |
1838 |
x = (x & ~0x8000) | ic->arg[0]; |
1839 |
reg_access_msr(cpu, &x, 1, 1); |
1840 |
} |
1841 |
|
1842 |
|
1843 |
/* |
1844 |
* mtcrf: Move To Condition Register Fields |
1845 |
* |
1846 |
* arg[0] = pointer to source register |
1847 |
*/ |
1848 |
X(mtcrf) |
1849 |
{ |
1850 |
cpu->cd.ppc.cr &= ~ic->arg[1]; |
1851 |
cpu->cd.ppc.cr |= (reg(ic->arg[0]) & ic->arg[1]); |
1852 |
} |
1853 |
|
1854 |
|
1855 |
/* |
1856 |
* mulli: Multiply Low Immediate. |
1857 |
* |
1858 |
* arg[0] = pointer to source register ra |
1859 |
* arg[1] = int32_t immediate |
1860 |
* arg[2] = pointer to destination register rt |
1861 |
*/ |
1862 |
X(mulli) |
1863 |
{ |
1864 |
reg(ic->arg[2]) = (uint32_t)(reg(ic->arg[0]) * (int32_t)ic->arg[1]); |
1865 |
} |
1866 |
|
1867 |
|
1868 |
/* |
1869 |
* Load/Store Multiple: |
1870 |
* |
1871 |
* arg[0] = rs (or rt for loads) NOTE: not a pointer |
1872 |
* arg[1] = ptr to ra |
1873 |
* arg[2] = int32_t immediate offset |
1874 |
*/ |
1875 |
X(lmw) { |
1876 |
MODE_uint_t addr = reg(ic->arg[1]) + (int32_t)ic->arg[2]; |
1877 |
unsigned char d[4]; |
1878 |
int rs = ic->arg[0]; |
1879 |
|
1880 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1881 |
/ sizeof(struct ppc_instr_call); |
1882 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1883 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1884 |
cpu->pc |= (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1885 |
|
1886 |
while (rs <= 31) { |
1887 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), |
1888 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1889 |
/* exception */ |
1890 |
return; |
1891 |
} |
1892 |
|
1893 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1894 |
cpu->cd.ppc.gpr[rs] = (d[0] << 24) + (d[1] << 16) |
1895 |
+ (d[2] << 8) + d[3]; |
1896 |
else |
1897 |
cpu->cd.ppc.gpr[rs] = (d[3] << 24) + (d[2] << 16) |
1898 |
+ (d[1] << 8) + d[0]; |
1899 |
|
1900 |
rs ++; |
1901 |
addr += sizeof(uint32_t); |
1902 |
} |
1903 |
} |
1904 |
X(stmw) { |
1905 |
MODE_uint_t addr = reg(ic->arg[1]) + (int32_t)ic->arg[2]; |
1906 |
unsigned char d[4]; |
1907 |
int rs = ic->arg[0]; |
1908 |
|
1909 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1910 |
/ sizeof(struct ppc_instr_call); |
1911 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1912 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1913 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1914 |
|
1915 |
while (rs <= 31) { |
1916 |
uint32_t tmp = cpu->cd.ppc.gpr[rs]; |
1917 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
1918 |
d[3] = tmp; d[2] = tmp >> 8; |
1919 |
d[1] = tmp >> 16; d[0] = tmp >> 24; |
1920 |
} else { |
1921 |
d[0] = tmp; d[1] = tmp >> 8; |
1922 |
d[2] = tmp >> 16; d[3] = tmp >> 24; |
1923 |
} |
1924 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), |
1925 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1926 |
/* exception */ |
1927 |
return; |
1928 |
} |
1929 |
|
1930 |
rs ++; |
1931 |
addr += sizeof(uint32_t); |
1932 |
} |
1933 |
} |
1934 |
|
1935 |
|
1936 |
/* |
1937 |
* Load/store string: |
1938 |
* |
1939 |
* arg[0] = rs (well, rt for lswi) |
1940 |
* arg[1] = ptr to ra (or ptr to zero) |
1941 |
* arg[2] = nb |
1942 |
*/ |
1943 |
X(lswi) |
1944 |
{ |
1945 |
MODE_uint_t addr = reg(ic->arg[1]); |
1946 |
int rt = ic->arg[0], nb = ic->arg[2]; |
1947 |
int sub = 0; |
1948 |
|
1949 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1950 |
/ sizeof(struct ppc_instr_call); |
1951 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1952 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1953 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1954 |
|
1955 |
while (nb > 0) { |
1956 |
unsigned char d; |
1957 |
if (cpu->memory_rw(cpu, cpu->mem, addr, &d, 1, |
1958 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1959 |
/* exception */ |
1960 |
return; |
1961 |
} |
1962 |
|
1963 |
if (cpu->cd.ppc.mode == MODE_POWER && sub == 0) |
1964 |
cpu->cd.ppc.gpr[rt] = 0; |
1965 |
cpu->cd.ppc.gpr[rt] &= ~(0xff << (24-8*sub)); |
1966 |
cpu->cd.ppc.gpr[rt] |= (d << (24-8*sub)); |
1967 |
sub ++; |
1968 |
if (sub == 4) { |
1969 |
rt = (rt + 1) & 31; |
1970 |
sub = 0; |
1971 |
} |
1972 |
addr ++; |
1973 |
nb --; |
1974 |
} |
1975 |
} |
1976 |
X(stswi) |
1977 |
{ |
1978 |
MODE_uint_t addr = reg(ic->arg[1]); |
1979 |
int rs = ic->arg[0], nb = ic->arg[2]; |
1980 |
uint32_t cur = cpu->cd.ppc.gpr[rs]; |
1981 |
int sub = 0; |
1982 |
|
1983 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1984 |
/ sizeof(struct ppc_instr_call); |
1985 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1986 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1987 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1988 |
|
1989 |
while (nb > 0) { |
1990 |
unsigned char d = cur >> 24; |
1991 |
if (cpu->memory_rw(cpu, cpu->mem, addr, &d, 1, |
1992 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1993 |
/* exception */ |
1994 |
return; |
1995 |
} |
1996 |
cur <<= 8; |
1997 |
sub ++; |
1998 |
if (sub == 4) { |
1999 |
rs = (rs + 1) & 31; |
2000 |
sub = 0; |
2001 |
cur = cpu->cd.ppc.gpr[rs]; |
2002 |
} |
2003 |
addr ++; |
2004 |
nb --; |
2005 |
} |
2006 |
} |
2007 |
|
2008 |
|
2009 |
/* |
2010 |
* Shifts, and, or, xor, etc. |
2011 |
* |
2012 |
* arg[0] = pointer to source register rs |
2013 |
* arg[1] = pointer to source register rb |
2014 |
* arg[2] = pointer to destination register ra |
2015 |
*/ |
2016 |
X(extsb) { |
2017 |
#ifdef MODE32 |
2018 |
reg(ic->arg[2]) = (int32_t)(int8_t)reg(ic->arg[0]); |
2019 |
#else |
2020 |
reg(ic->arg[2]) = (int64_t)(int8_t)reg(ic->arg[0]); |
2021 |
#endif |
2022 |
} |
2023 |
DOT2(extsb) |
2024 |
X(extsh) { |
2025 |
#ifdef MODE32 |
2026 |
reg(ic->arg[2]) = (int32_t)(int16_t)reg(ic->arg[0]); |
2027 |
#else |
2028 |
reg(ic->arg[2]) = (int64_t)(int16_t)reg(ic->arg[0]); |
2029 |
#endif |
2030 |
} |
2031 |
DOT2(extsh) |
2032 |
X(extsw) { |
2033 |
#ifdef MODE32 |
2034 |
fatal("TODO: extsw: invalid instruction\n"); |
2035 |
#else |
2036 |
reg(ic->arg[2]) = (int64_t)(int32_t)reg(ic->arg[0]); |
2037 |
#endif |
2038 |
} |
2039 |
DOT2(extsw) |
2040 |
X(slw) { reg(ic->arg[2]) = (uint64_t)reg(ic->arg[0]) |
2041 |
<< (reg(ic->arg[1]) & 31); } |
2042 |
DOT2(slw) |
2043 |
X(sld) {int sa = reg(ic->arg[1]) & 127; |
2044 |
if (sa >= 64) reg(ic->arg[2]) = 0; |
2045 |
else reg(ic->arg[2]) = (uint64_t)reg(ic->arg[0]) << (sa & 63); } |
2046 |
DOT2(sld) |
2047 |
X(sraw) |
2048 |
{ |
2049 |
uint32_t tmp = reg(ic->arg[0]); |
2050 |
int i = 0, j = 0, sh = reg(ic->arg[1]) & 31; |
2051 |
|
2052 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2053 |
if (tmp & 0x80000000) |
2054 |
i = 1; |
2055 |
while (sh-- > 0) { |
2056 |
if (tmp & 1) |
2057 |
j ++; |
2058 |
tmp >>= 1; |
2059 |
if (tmp & 0x40000000) |
2060 |
tmp |= 0x80000000; |
2061 |
} |
2062 |
if (i && j>0) |
2063 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2064 |
reg(ic->arg[2]) = (int64_t)(int32_t)tmp; |
2065 |
} |
2066 |
DOT2(sraw) |
2067 |
X(srw) { reg(ic->arg[2]) = (uint64_t)reg(ic->arg[0]) |
2068 |
>> (reg(ic->arg[1]) & 31); } |
2069 |
DOT2(srw) |
2070 |
X(and) { reg(ic->arg[2]) = reg(ic->arg[0]) & reg(ic->arg[1]); } |
2071 |
DOT2(and) |
2072 |
X(nand) { reg(ic->arg[2]) = ~(reg(ic->arg[0]) & reg(ic->arg[1])); } |
2073 |
DOT2(nand) |
2074 |
X(andc) { reg(ic->arg[2]) = reg(ic->arg[0]) & (~reg(ic->arg[1])); } |
2075 |
DOT2(andc) |
2076 |
X(nor) { reg(ic->arg[2]) = ~(reg(ic->arg[0]) | reg(ic->arg[1])); } |
2077 |
DOT2(nor) |
2078 |
X(mr) { reg(ic->arg[2]) = reg(ic->arg[1]); } |
2079 |
X(or) { reg(ic->arg[2]) = reg(ic->arg[0]) | reg(ic->arg[1]); } |
2080 |
DOT2(or) |
2081 |
X(orc) { reg(ic->arg[2]) = reg(ic->arg[0]) | (~reg(ic->arg[1])); } |
2082 |
DOT2(orc) |
2083 |
X(xor) { reg(ic->arg[2]) = reg(ic->arg[0]) ^ reg(ic->arg[1]); } |
2084 |
DOT2(xor) |
2085 |
X(eqv) { reg(ic->arg[2]) = ~(reg(ic->arg[0]) ^ reg(ic->arg[1])); } |
2086 |
DOT2(eqv) |
2087 |
|
2088 |
|
2089 |
/* |
2090 |
* neg: |
2091 |
* |
2092 |
* arg[0] = pointer to source register ra |
2093 |
* arg[1] = pointer to destination register rt |
2094 |
*/ |
2095 |
X(neg) { reg(ic->arg[1]) = -reg(ic->arg[0]); } |
2096 |
DOT1(neg) |
2097 |
|
2098 |
|
2099 |
/* |
2100 |
* mullw, mulhw[u], divw[u]: |
2101 |
* |
2102 |
* arg[0] = pointer to source register ra |
2103 |
* arg[1] = pointer to source register rb |
2104 |
* arg[2] = pointer to destination register rt |
2105 |
*/ |
2106 |
X(mullw) |
2107 |
{ |
2108 |
int32_t sum = (int32_t)reg(ic->arg[0]) * (int32_t)reg(ic->arg[1]); |
2109 |
reg(ic->arg[2]) = (int32_t)sum; |
2110 |
} |
2111 |
DOT2(mullw) |
2112 |
X(mulhw) |
2113 |
{ |
2114 |
int64_t sum; |
2115 |
sum = (int64_t)(int32_t)reg(ic->arg[0]) |
2116 |
* (int64_t)(int32_t)reg(ic->arg[1]); |
2117 |
reg(ic->arg[2]) = sum >> 32; |
2118 |
} |
2119 |
DOT2(mulhw) |
2120 |
X(mulhwu) |
2121 |
{ |
2122 |
uint64_t sum; |
2123 |
sum = (uint64_t)(uint32_t)reg(ic->arg[0]) |
2124 |
* (uint64_t)(uint32_t)reg(ic->arg[1]); |
2125 |
reg(ic->arg[2]) = sum >> 32; |
2126 |
} |
2127 |
DOT2(mulhwu) |
2128 |
X(divw) |
2129 |
{ |
2130 |
int32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]); |
2131 |
int32_t sum; |
2132 |
if (b == 0) |
2133 |
sum = 0; |
2134 |
else |
2135 |
sum = a / b; |
2136 |
reg(ic->arg[2]) = (uint32_t)sum; |
2137 |
} |
2138 |
DOT2(divw) |
2139 |
X(divwu) |
2140 |
{ |
2141 |
uint32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]); |
2142 |
uint32_t sum; |
2143 |
if (b == 0) |
2144 |
sum = 0; |
2145 |
else |
2146 |
sum = a / b; |
2147 |
reg(ic->arg[2]) = sum; |
2148 |
} |
2149 |
DOT2(divwu) |
2150 |
|
2151 |
|
2152 |
/* |
2153 |
* add: Add. |
2154 |
* |
2155 |
* arg[0] = pointer to source register ra |
2156 |
* arg[1] = pointer to source register rb |
2157 |
* arg[2] = pointer to destination register rt |
2158 |
*/ |
2159 |
X(add) { reg(ic->arg[2]) = reg(ic->arg[0]) + reg(ic->arg[1]); } |
2160 |
DOT2(add) |
2161 |
|
2162 |
|
2163 |
/* |
2164 |
* addc: Add carrying. |
2165 |
* |
2166 |
* arg[0] = pointer to source register ra |
2167 |
* arg[1] = pointer to source register rb |
2168 |
* arg[2] = pointer to destination register rt |
2169 |
*/ |
2170 |
X(addc) |
2171 |
{ |
2172 |
/* TODO: this only works in 32-bit mode */ |
2173 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2174 |
uint64_t tmp2 = tmp; |
2175 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2176 |
tmp += (uint32_t)reg(ic->arg[1]); |
2177 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2178 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2179 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2180 |
} |
2181 |
|
2182 |
|
2183 |
/* |
2184 |
* adde: Add extended, etc. |
2185 |
* |
2186 |
* arg[0] = pointer to source register ra |
2187 |
* arg[1] = pointer to source register rb |
2188 |
* arg[2] = pointer to destination register rt |
2189 |
*/ |
2190 |
X(adde) |
2191 |
{ |
2192 |
/* TODO: this only works in 32-bit mode */ |
2193 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2194 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2195 |
uint64_t tmp2 = tmp; |
2196 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2197 |
tmp += (uint32_t)reg(ic->arg[1]); |
2198 |
if (old_ca) |
2199 |
tmp ++; |
2200 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2201 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2202 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2203 |
} |
2204 |
DOT2(adde) |
2205 |
X(addme) |
2206 |
{ |
2207 |
/* TODO: this only works in 32-bit mode */ |
2208 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2209 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2210 |
uint64_t tmp2 = tmp; |
2211 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2212 |
if (old_ca) |
2213 |
tmp ++; |
2214 |
tmp += 0xffffffffULL; |
2215 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2216 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2217 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2218 |
} |
2219 |
DOT2(addme) |
2220 |
X(addze) |
2221 |
{ |
2222 |
/* TODO: this only works in 32-bit mode */ |
2223 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2224 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2225 |
uint64_t tmp2 = tmp; |
2226 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2227 |
if (old_ca) |
2228 |
tmp ++; |
2229 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2230 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2231 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2232 |
} |
2233 |
DOT2(addze) |
2234 |
|
2235 |
|
2236 |
/* |
2237 |
* subf: Subf, etc. |
2238 |
* |
2239 |
* arg[0] = pointer to source register ra |
2240 |
* arg[1] = pointer to source register rb |
2241 |
* arg[2] = pointer to destination register rt |
2242 |
*/ |
2243 |
X(subf) |
2244 |
{ |
2245 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]); |
2246 |
} |
2247 |
DOT2(subf) |
2248 |
X(subfc) |
2249 |
{ |
2250 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2251 |
if (reg(ic->arg[1]) >= reg(ic->arg[0])) |
2252 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2253 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]); |
2254 |
} |
2255 |
DOT2(subfc) |
2256 |
X(subfe) |
2257 |
{ |
2258 |
int old_ca = (cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA)? 1 : 0; |
2259 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2260 |
if (reg(ic->arg[1]) == reg(ic->arg[0])) { |
2261 |
if (old_ca) |
2262 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2263 |
} else if (reg(ic->arg[1]) >= reg(ic->arg[0])) |
2264 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2265 |
|
2266 |
/* |
2267 |
* TODO: The register value calculation should be correct, |
2268 |
* but the CA bit calculation above is probably not. |
2269 |
*/ |
2270 |
|
2271 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]) - (old_ca? 0 : 1); |
2272 |
} |
2273 |
DOT2(subfe) |
2274 |
X(subfme) |
2275 |
{ |
2276 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2277 |
uint64_t tmp = (uint32_t)(~reg(ic->arg[0])); |
2278 |
tmp += 0xffffffffULL; |
2279 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2280 |
if (old_ca) |
2281 |
tmp ++; |
2282 |
if ((tmp >> 32) != 0) |
2283 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2284 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2285 |
} |
2286 |
DOT2(subfme) |
2287 |
X(subfze) |
2288 |
{ |
2289 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2290 |
uint64_t tmp = (uint32_t)(~reg(ic->arg[0])); |
2291 |
uint64_t tmp2 = tmp; |
2292 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2293 |
if (old_ca) |
2294 |
tmp ++; |
2295 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2296 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2297 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2298 |
} |
2299 |
DOT2(subfze) |
2300 |
|
2301 |
|
2302 |
/* |
2303 |
* ori, xori etc.: |
2304 |
* |
2305 |
* arg[0] = pointer to source uint64_t |
2306 |
* arg[1] = immediate value (uint32_t or larger) |
2307 |
* arg[2] = pointer to destination uint64_t |
2308 |
*/ |
2309 |
X(ori) { reg(ic->arg[2]) = reg(ic->arg[0]) | (uint32_t)ic->arg[1]; } |
2310 |
X(xori) { reg(ic->arg[2]) = reg(ic->arg[0]) ^ (uint32_t)ic->arg[1]; } |
2311 |
|
2312 |
|
2313 |
#include "tmp_ppc_loadstore.c" |
2314 |
|
2315 |
|
2316 |
/* |
2317 |
* lfs, stfs: Load/Store Floating-point Single precision |
2318 |
*/ |
2319 |
X(lfs) |
2320 |
{ |
2321 |
/* Sync. PC in case of an exception, and remember it: */ |
2322 |
uint64_t old_pc, low_pc = ((size_t)ic - (size_t) |
2323 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2324 |
old_pc = cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << |
2325 |
PPC_INSTR_ALIGNMENT_SHIFT)) + (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
2326 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2327 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2328 |
return; |
2329 |
} |
2330 |
|
2331 |
/* Perform a 32-bit load: */ |
2332 |
#ifdef MODE32 |
2333 |
ppc32_loadstore |
2334 |
#else |
2335 |
ppc_loadstore |
2336 |
#endif |
2337 |
[2 + 4 + 8](cpu, ic); |
2338 |
|
2339 |
if (old_pc == cpu->pc) { |
2340 |
/* The load succeeded. Let's convert the value: */ |
2341 |
struct ieee_float_value val; |
2342 |
(*(uint64_t *)ic->arg[0]) &= 0xffffffff; |
2343 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], |
2344 |
&val, IEEE_FMT_S); |
2345 |
(*(uint64_t *)ic->arg[0]) = |
2346 |
ieee_store_float_value(val.f, IEEE_FMT_D, val.nan); |
2347 |
} |
2348 |
} |
2349 |
X(lfsx) |
2350 |
{ |
2351 |
/* Sync. PC in case of an exception, and remember it: */ |
2352 |
uint64_t old_pc, low_pc = ((size_t)ic - (size_t) |
2353 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2354 |
old_pc = cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << |
2355 |
PPC_INSTR_ALIGNMENT_SHIFT)) + (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
2356 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2357 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2358 |
return; |
2359 |
} |
2360 |
|
2361 |
/* Perform a 32-bit load: */ |
2362 |
#ifdef MODE32 |
2363 |
ppc32_loadstore_indexed |
2364 |
#else |
2365 |
ppc_loadstore_indexed |
2366 |
#endif |
2367 |
[2 + 4 + 8](cpu, ic); |
2368 |
|
2369 |
if (old_pc == cpu->pc) { |
2370 |
/* The load succeeded. Let's convert the value: */ |
2371 |
struct ieee_float_value val; |
2372 |
(*(uint64_t *)ic->arg[0]) &= 0xffffffff; |
2373 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], |
2374 |
&val, IEEE_FMT_S); |
2375 |
(*(uint64_t *)ic->arg[0]) = |
2376 |
ieee_store_float_value(val.f, IEEE_FMT_D, val.nan); |
2377 |
} |
2378 |
} |
2379 |
X(lfd) |
2380 |
{ |
2381 |
CHECK_FOR_FPU_EXCEPTION; |
2382 |
|
2383 |
/* Perform a 64-bit load: */ |
2384 |
#ifdef MODE32 |
2385 |
ppc32_loadstore |
2386 |
#else |
2387 |
ppc_loadstore |
2388 |
#endif |
2389 |
[3 + 4 + 8](cpu, ic); |
2390 |
} |
2391 |
X(lfdx) |
2392 |
{ |
2393 |
CHECK_FOR_FPU_EXCEPTION; |
2394 |
|
2395 |
/* Perform a 64-bit load: */ |
2396 |
#ifdef MODE32 |
2397 |
ppc32_loadstore_indexed |
2398 |
#else |
2399 |
ppc_loadstore_indexed |
2400 |
#endif |
2401 |
[3 + 4 + 8](cpu, ic); |
2402 |
} |
2403 |
X(stfs) |
2404 |
{ |
2405 |
uint64_t *old_arg0 = (void *)ic->arg[0]; |
2406 |
struct ieee_float_value val; |
2407 |
uint64_t tmp_val; |
2408 |
|
2409 |
CHECK_FOR_FPU_EXCEPTION; |
2410 |
|
2411 |
ieee_interpret_float_value(*old_arg0, &val, IEEE_FMT_D); |
2412 |
tmp_val = ieee_store_float_value(val.f, IEEE_FMT_S, val.nan); |
2413 |
|
2414 |
ic->arg[0] = (size_t)&tmp_val; |
2415 |
|
2416 |
/* Perform a 32-bit store: */ |
2417 |
#ifdef MODE32 |
2418 |
ppc32_loadstore |
2419 |
#else |
2420 |
ppc_loadstore |
2421 |
#endif |
2422 |
[2 + 4](cpu, ic); |
2423 |
|
2424 |
ic->arg[0] = (size_t)old_arg0; |
2425 |
} |
2426 |
X(stfsx) |
2427 |
{ |
2428 |
uint64_t *old_arg0 = (void *)ic->arg[0]; |
2429 |
struct ieee_float_value val; |
2430 |
uint64_t tmp_val; |
2431 |
|
2432 |
CHECK_FOR_FPU_EXCEPTION; |
2433 |
|
2434 |
ieee_interpret_float_value(*old_arg0, &val, IEEE_FMT_D); |
2435 |
tmp_val = ieee_store_float_value(val.f, IEEE_FMT_S, val.nan); |
2436 |
|
2437 |
ic->arg[0] = (size_t)&tmp_val; |
2438 |
|
2439 |
/* Perform a 32-bit store: */ |
2440 |
#ifdef MODE32 |
2441 |
ppc32_loadstore_indexed |
2442 |
#else |
2443 |
ppc_loadstore_indexed |
2444 |
#endif |
2445 |
[2 + 4](cpu, ic); |
2446 |
|
2447 |
ic->arg[0] = (size_t)old_arg0; |
2448 |
} |
2449 |
X(stfd) |
2450 |
{ |
2451 |
CHECK_FOR_FPU_EXCEPTION; |
2452 |
|
2453 |
/* Perform a 64-bit store: */ |
2454 |
#ifdef MODE32 |
2455 |
ppc32_loadstore |
2456 |
#else |
2457 |
ppc_loadstore |
2458 |
#endif |
2459 |
[3 + 4](cpu, ic); |
2460 |
} |
2461 |
X(stfdx) |
2462 |
{ |
2463 |
CHECK_FOR_FPU_EXCEPTION; |
2464 |
|
2465 |
/* Perform a 64-bit store: */ |
2466 |
#ifdef MODE32 |
2467 |
ppc32_loadstore_indexed |
2468 |
#else |
2469 |
ppc_loadstore_indexed |
2470 |
#endif |
2471 |
[3 + 4](cpu, ic); |
2472 |
} |
2473 |
|
2474 |
|
2475 |
/* |
2476 |
* tlbia: TLB invalidate all |
2477 |
*/ |
2478 |
X(tlbia) |
2479 |
{ |
2480 |
fatal("[ tlbia ]\n"); |
2481 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
2482 |
} |
2483 |
|
2484 |
|
2485 |
/* |
2486 |
* tlbie: TLB invalidate |
2487 |
*/ |
2488 |
X(tlbie) |
2489 |
{ |
2490 |
/* fatal("[ tlbie ]\n"); */ |
2491 |
cpu->invalidate_translation_caches(cpu, reg(ic->arg[0]), |
2492 |
INVALIDATE_VADDR); |
2493 |
} |
2494 |
|
2495 |
|
2496 |
/* |
2497 |
* sc: Syscall. |
2498 |
*/ |
2499 |
X(sc) |
2500 |
{ |
2501 |
/* Synchronize the PC (pointing to _after_ this instruction) */ |
2502 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[1]; |
2503 |
|
2504 |
ppc_exception(cpu, PPC_EXCEPTION_SC); |
2505 |
|
2506 |
/* This caused an update to the PC register, so there is no need |
2507 |
to worry about the next instruction being an end_of_page. */ |
2508 |
} |
2509 |
|
2510 |
|
2511 |
/* |
2512 |
* user_syscall: Userland syscall. |
2513 |
* |
2514 |
* arg[0] = syscall "level" (usually 0) |
2515 |
*/ |
2516 |
X(user_syscall) |
2517 |
{ |
2518 |
useremul_syscall(cpu, ic->arg[0]); |
2519 |
|
2520 |
if (!cpu->running) { |
2521 |
cpu->running_translated = 0; |
2522 |
cpu->n_translated_instrs --; |
2523 |
cpu->cd.ppc.next_ic = ¬hing_call; |
2524 |
} |
2525 |
} |
2526 |
|
2527 |
|
2528 |
/* |
2529 |
* openfirmware: |
2530 |
*/ |
2531 |
X(openfirmware) |
2532 |
{ |
2533 |
of_emul(cpu); |
2534 |
if (cpu->running == 0) { |
2535 |
cpu->running_translated = 0; |
2536 |
} |
2537 |
cpu->pc = cpu->cd.ppc.spr[SPR_LR]; |
2538 |
if (cpu->machine->show_trace_tree) |
2539 |
cpu_functioncall_trace_return(cpu); |
2540 |
quick_pc_to_pointers(cpu); |
2541 |
} |
2542 |
|
2543 |
|
2544 |
/* |
2545 |
* tlbsx_dot: TLB scan |
2546 |
*/ |
2547 |
X(tlbsx_dot) |
2548 |
{ |
2549 |
/* TODO */ |
2550 |
cpu->cd.ppc.cr &= ~(0xf0000000); |
2551 |
cpu->cd.ppc.cr |= 0x20000000; |
2552 |
cpu->cd.ppc.cr |= ((cpu->cd.ppc.spr[SPR_XER] >> 3) & 0x10000000); |
2553 |
} |
2554 |
|
2555 |
|
2556 |
/* |
2557 |
* tlbli: |
2558 |
*/ |
2559 |
X(tlbli) |
2560 |
{ |
2561 |
fatal("tlbli\n"); |
2562 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
2563 |
} |
2564 |
|
2565 |
|
2566 |
/* |
2567 |
* tlbld: |
2568 |
*/ |
2569 |
X(tlbld) |
2570 |
{ |
2571 |
/* MODE_uint_t vaddr = reg(ic->arg[0]); |
2572 |
MODE_uint_t paddr = cpu->cd.ppc.spr[SPR_RPA]; */ |
2573 |
|
2574 |
fatal("tlbld\n"); |
2575 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
2576 |
} |
2577 |
|
2578 |
|
2579 |
/*****************************************************************************/ |
2580 |
|
2581 |
|
2582 |
X(end_of_page) |
2583 |
{ |
2584 |
/* Update the PC: (offset 0, but on the next page) */ |
2585 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << PPC_INSTR_ALIGNMENT_SHIFT); |
2586 |
cpu->pc += (PPC_IC_ENTRIES_PER_PAGE << PPC_INSTR_ALIGNMENT_SHIFT); |
2587 |
|
2588 |
/* Find the new physical page and update the translation pointers: */ |
2589 |
quick_pc_to_pointers(cpu); |
2590 |
|
2591 |
/* end_of_page doesn't count as an executed instruction: */ |
2592 |
cpu->n_translated_instrs --; |
2593 |
} |
2594 |
|
2595 |
|
2596 |
/*****************************************************************************/ |
2597 |
|
2598 |
|
2599 |
/* |
2600 |
* ppc_instr_to_be_translated(): |
2601 |
* |
2602 |
* Translate an instruction word into a ppc_instr_call. ic is filled in with |
2603 |
* valid data for the translated instruction, or a "nothing" instruction if |
2604 |
* there was a translation failure. The newly translated instruction is then |
2605 |
* executed. |
2606 |
*/ |
2607 |
X(to_be_translated) |
2608 |
{ |
2609 |
uint64_t addr, low_pc, tmp_addr; |
2610 |
uint32_t iword, mask; |
2611 |
unsigned char *page; |
2612 |
unsigned char ib[4]; |
2613 |
int main_opcode, rt, rs, ra, rb, rc, aa_bit, l_bit, lk_bit, spr, sh, |
2614 |
xo, imm, load, size, update, zero, bf, bo, bi, bh, oe_bit, n64=0, |
2615 |
bfa, fp, byterev, nb, mb, me; |
2616 |
void (*samepage_function)(struct cpu *, struct ppc_instr_call *); |
2617 |
void (*rc_f)(struct cpu *, struct ppc_instr_call *); |
2618 |
|
2619 |
/* Figure out the (virtual) address of the instruction: */ |
2620 |
low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
2621 |
/ sizeof(struct ppc_instr_call); |
2622 |
addr = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
2623 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
2624 |
addr += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
2625 |
cpu->pc = addr; |
2626 |
addr &= ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
2627 |
|
2628 |
/* Read the instruction word from memory: */ |
2629 |
#ifdef MODE32 |
2630 |
page = cpu->cd.ppc.host_load[((uint32_t)addr) >> 12]; |
2631 |
#else |
2632 |
{ |
2633 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
2634 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
2635 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
2636 |
uint32_t x1 = (addr >> (64-DYNTRANS_L1N)) & mask1; |
2637 |
uint32_t x2 = (addr >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
2638 |
uint32_t x3 = (addr >> (64-DYNTRANS_L1N-DYNTRANS_L2N- |
2639 |
DYNTRANS_L3N)) & mask3; |
2640 |
struct DYNTRANS_L2_64_TABLE *l2 = cpu->cd.ppc.l1_64[x1]; |
2641 |
struct DYNTRANS_L3_64_TABLE *l3 = l2->l3[x2]; |
2642 |
page = l3->host_load[x3]; |
2643 |
} |
2644 |
#endif |
2645 |
|
2646 |
if (page != NULL) { |
2647 |
/* fatal("TRANSLATION HIT!\n"); */ |
2648 |
memcpy(ib, page + (addr & 0xfff), sizeof(ib)); |
2649 |
} else { |
2650 |
/* fatal("TRANSLATION MISS!\n"); */ |
2651 |
if (!cpu->memory_rw(cpu, cpu->mem, addr, ib, |
2652 |
sizeof(ib), MEM_READ, CACHE_INSTRUCTION)) { |
2653 |
fatal("PPC to_be_translated(): " |
2654 |
"read failed: TODO\n"); |
2655 |
exit(1); |
2656 |
/* goto bad; */ |
2657 |
} |
2658 |
} |
2659 |
|
2660 |
iword = *((uint32_t *)&ib[0]); |
2661 |
iword = BE32_TO_HOST(iword); |
2662 |
|
2663 |
|
2664 |
#define DYNTRANS_TO_BE_TRANSLATED_HEAD |
2665 |
#include "cpu_dyntrans.c" |
2666 |
#undef DYNTRANS_TO_BE_TRANSLATED_HEAD |
2667 |
|
2668 |
|
2669 |
/* |
2670 |
* Translate the instruction: |
2671 |
*/ |
2672 |
|
2673 |
main_opcode = iword >> 26; |
2674 |
|
2675 |
switch (main_opcode) { |
2676 |
|
2677 |
case 0x04: |
2678 |
fatal("[ TODO: ALTIVEC ]\n"); |
2679 |
ic->f = instr(nop); |
2680 |
break; |
2681 |
|
2682 |
case PPC_HI6_MULLI: |
2683 |
rt = (iword >> 21) & 31; |
2684 |
ra = (iword >> 16) & 31; |
2685 |
imm = (int16_t)(iword & 0xffff); |
2686 |
ic->f = instr(mulli); |
2687 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2688 |
ic->arg[1] = (ssize_t)imm; |
2689 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2690 |
break; |
2691 |
|
2692 |
case PPC_HI6_SUBFIC: |
2693 |
rt = (iword >> 21) & 31; |
2694 |
ra = (iword >> 16) & 31; |
2695 |
imm = (int16_t)(iword & 0xffff); |
2696 |
ic->f = instr(subfic); |
2697 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2698 |
ic->arg[1] = (ssize_t)imm; |
2699 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2700 |
break; |
2701 |
|
2702 |
case PPC_HI6_CMPLI: |
2703 |
case PPC_HI6_CMPI: |
2704 |
bf = (iword >> 23) & 7; |
2705 |
l_bit = (iword >> 21) & 1; |
2706 |
ra = (iword >> 16) & 31; |
2707 |
if (main_opcode == PPC_HI6_CMPLI) { |
2708 |
imm = iword & 0xffff; |
2709 |
if (l_bit) |
2710 |
ic->f = instr(cmpldi); |
2711 |
else |
2712 |
ic->f = instr(cmplwi); |
2713 |
} else { |
2714 |
imm = (int16_t)(iword & 0xffff); |
2715 |
if (l_bit) |
2716 |
ic->f = instr(cmpdi); |
2717 |
else { |
2718 |
if (bf == 0) |
2719 |
ic->f = instr(cmpwi_cr0); |
2720 |
else |
2721 |
ic->f = instr(cmpwi); |
2722 |
} |
2723 |
} |
2724 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2725 |
ic->arg[1] = (ssize_t)imm; |
2726 |
ic->arg[2] = 28 - 4 * bf; |
2727 |
break; |
2728 |
|
2729 |
case PPC_HI6_ADDIC: |
2730 |
case PPC_HI6_ADDIC_DOT: |
2731 |
if (cpu->cd.ppc.bits == 64) { |
2732 |
fatal("addic for 64-bit: TODO\n"); |
2733 |
goto bad; |
2734 |
} |
2735 |
rt = (iword >> 21) & 31; |
2736 |
ra = (iword >> 16) & 31; |
2737 |
imm = (int16_t)(iword & 0xffff); |
2738 |
if (main_opcode == PPC_HI6_ADDIC) |
2739 |
ic->f = instr(addic); |
2740 |
else |
2741 |
ic->f = instr(addic_dot); |
2742 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2743 |
ic->arg[1] = imm; |
2744 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2745 |
break; |
2746 |
|
2747 |
case PPC_HI6_ADDI: |
2748 |
case PPC_HI6_ADDIS: |
2749 |
rt = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2750 |
ic->f = instr(addi); |
2751 |
if (ra == 0) |
2752 |
ic->f = instr(li); |
2753 |
else |
2754 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2755 |
ic->arg[1] = (int16_t)(iword & 0xffff); |
2756 |
if (main_opcode == PPC_HI6_ADDIS) |
2757 |
ic->arg[1] <<= 16; |
2758 |
if (ra == 0 && ic->arg[1] == 0) |
2759 |
ic->f = instr(li_0); |
2760 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2761 |
break; |
2762 |
|
2763 |
case PPC_HI6_ANDI_DOT: |
2764 |
case PPC_HI6_ANDIS_DOT: |
2765 |
rs = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2766 |
ic->f = instr(andi_dot); |
2767 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2768 |
ic->arg[1] = iword & 0xffff; |
2769 |
if (main_opcode == PPC_HI6_ANDIS_DOT) |
2770 |
ic->arg[1] <<= 16; |
2771 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2772 |
break; |
2773 |
|
2774 |
case PPC_HI6_ORI: |
2775 |
case PPC_HI6_ORIS: |
2776 |
case PPC_HI6_XORI: |
2777 |
case PPC_HI6_XORIS: |
2778 |
rs = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2779 |
if (main_opcode == PPC_HI6_ORI || |
2780 |
main_opcode == PPC_HI6_ORIS) |
2781 |
ic->f = instr(ori); |
2782 |
else |
2783 |
ic->f = instr(xori); |
2784 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2785 |
ic->arg[1] = iword & 0xffff; |
2786 |
if (main_opcode == PPC_HI6_ORIS || |
2787 |
main_opcode == PPC_HI6_XORIS) |
2788 |
ic->arg[1] <<= 16; |
2789 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2790 |
break; |
2791 |
|
2792 |
case PPC_HI6_LBZ: |
2793 |
case PPC_HI6_LBZU: |
2794 |
case PPC_HI6_LHZ: |
2795 |
case PPC_HI6_LHZU: |
2796 |
case PPC_HI6_LHA: |
2797 |
case PPC_HI6_LHAU: |
2798 |
case PPC_HI6_LWZ: |
2799 |
case PPC_HI6_LWZU: |
2800 |
case PPC_HI6_LD: |
2801 |
case PPC_HI6_LFD: |
2802 |
case PPC_HI6_LFS: |
2803 |
case PPC_HI6_STB: |
2804 |
case PPC_HI6_STBU: |
2805 |
case PPC_HI6_STH: |
2806 |
case PPC_HI6_STHU: |
2807 |
case PPC_HI6_STW: |
2808 |
case PPC_HI6_STWU: |
2809 |
case PPC_HI6_STD: |
2810 |
case PPC_HI6_STFD: |
2811 |
case PPC_HI6_STFS: |
2812 |
rs = (iword >> 21) & 31; |
2813 |
ra = (iword >> 16) & 31; |
2814 |
imm = (int16_t)iword; |
2815 |
load = 0; zero = 1; size = 0; update = 0; fp = 0; |
2816 |
ic->f = NULL; |
2817 |
switch (main_opcode) { |
2818 |
case PPC_HI6_LBZ: load=1; break; |
2819 |
case PPC_HI6_LBZU: load=1; update=1; break; |
2820 |
case PPC_HI6_LHA: load=1; size=1; zero=0; break; |
2821 |
case PPC_HI6_LHAU: load=1; size=1; zero=0; update=1; break; |
2822 |
case PPC_HI6_LHZ: load=1; size=1; break; |
2823 |
case PPC_HI6_LHZU: load=1; size=1; update=1; break; |
2824 |
case PPC_HI6_LWZ: load=1; size=2; break; |
2825 |
case PPC_HI6_LWZU: load=1; size=2; update=1; break; |
2826 |
case PPC_HI6_LD: load=1; size=3; break; |
2827 |
case PPC_HI6_LFD: load=1; size=3; fp=1;ic->f=instr(lfd);break; |
2828 |
case PPC_HI6_LFS: load=1; size=2; fp=1;ic->f=instr(lfs);break; |
2829 |
case PPC_HI6_STB: break; |
2830 |
case PPC_HI6_STBU: update=1; break; |
2831 |
case PPC_HI6_STH: size=1; break; |
2832 |
case PPC_HI6_STHU: size=1; update=1; break; |
2833 |
case PPC_HI6_STW: size=2; break; |
2834 |
case PPC_HI6_STWU: size=2; update=1; break; |
2835 |
case PPC_HI6_STD: size=3; break; |
2836 |
case PPC_HI6_STFD: size=3; fp=1; ic->f = instr(stfd); break; |
2837 |
case PPC_HI6_STFS: size=2; fp=1; ic->f = instr(stfs); break; |
2838 |
} |
2839 |
if (ic->f == NULL) { |
2840 |
ic->f = |
2841 |
#ifdef MODE32 |
2842 |
ppc32_loadstore |
2843 |
#else |
2844 |
ppc_loadstore |
2845 |
#endif |
2846 |
[size + 4*zero + 8*load + (imm==0? 16 : 0) |
2847 |
+ 32*update]; |
2848 |
} |
2849 |
if (ra == 0 && update) { |
2850 |
fatal("TODO: ra=0 && update?\n"); |
2851 |
goto bad; |
2852 |
} |
2853 |
if (fp) |
2854 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rs]); |
2855 |
else |
2856 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2857 |
if (ra == 0) |
2858 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
2859 |
else |
2860 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2861 |
ic->arg[2] = (ssize_t)imm; |
2862 |
break; |
2863 |
|
2864 |
case PPC_HI6_BC: |
2865 |
aa_bit = (iword >> 1) & 1; |
2866 |
lk_bit = iword & 1; |
2867 |
bo = (iword >> 21) & 31; |
2868 |
bi = (iword >> 16) & 31; |
2869 |
tmp_addr = (int64_t)(int16_t)(iword & 0xfffc); |
2870 |
if (aa_bit) { |
2871 |
fatal("aa_bit: NOT YET\n"); |
2872 |
goto bad; |
2873 |
} |
2874 |
if (lk_bit) { |
2875 |
ic->f = instr(bcl); |
2876 |
samepage_function = instr(bcl_samepage); |
2877 |
} else { |
2878 |
ic->f = instr(bc); |
2879 |
if ((bo & 0x14) == 0x04) { |
2880 |
samepage_function = bo & 8? |
2881 |
instr(bc_samepage_simple1) : |
2882 |
instr(bc_samepage_simple0); |
2883 |
} else |
2884 |
samepage_function = instr(bc_samepage); |
2885 |
} |
2886 |
ic->arg[0] = (ssize_t)(tmp_addr + (addr & 0xffc)); |
2887 |
ic->arg[1] = bo; |
2888 |
ic->arg[2] = 31-bi; |
2889 |
/* Branches are calculated as cur PC + offset. */ |
2890 |
/* Special case: branch within the same page: */ |
2891 |
{ |
2892 |
uint64_t mask_within_page = |
2893 |
((PPC_IC_ENTRIES_PER_PAGE-1) << 2) | 3; |
2894 |
uint64_t old_pc = addr; |
2895 |
uint64_t new_pc = old_pc + (int32_t)tmp_addr; |
2896 |
if ((old_pc & ~mask_within_page) == |
2897 |
(new_pc & ~mask_within_page)) { |
2898 |
ic->f = samepage_function; |
2899 |
ic->arg[0] = (size_t) ( |
2900 |
cpu->cd.ppc.cur_ic_page + |
2901 |
((new_pc & mask_within_page) >> 2)); |
2902 |
} |
2903 |
} |
2904 |
break; |
2905 |
|
2906 |
case PPC_HI6_SC: |
2907 |
ic->arg[0] = (iword >> 5) & 0x7f; |
2908 |
ic->arg[1] = (addr & 0xfff) + 4; |
2909 |
if (cpu->machine->userland_emul != NULL) |
2910 |
ic->f = instr(user_syscall); |
2911 |
else if (iword == 0x44ee0002) { |
2912 |
/* Special case/magic hack for OpenFirmware emul: */ |
2913 |
ic->f = instr(openfirmware); |
2914 |
} else |
2915 |
ic->f = instr(sc); |
2916 |
break; |
2917 |
|
2918 |
case PPC_HI6_B: |
2919 |
aa_bit = (iword & 2) >> 1; |
2920 |
lk_bit = iword & 1; |
2921 |
tmp_addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
2922 |
tmp_addr = (int64_t)tmp_addr >> 6; |
2923 |
if (lk_bit) { |
2924 |
if (cpu->machine->show_trace_tree) { |
2925 |
ic->f = instr(bl_trace); |
2926 |
samepage_function = instr(bl_samepage_trace); |
2927 |
} else { |
2928 |
ic->f = instr(bl); |
2929 |
samepage_function = instr(bl_samepage); |
2930 |
} |
2931 |
} else { |
2932 |
ic->f = instr(b); |
2933 |
samepage_function = instr(b_samepage); |
2934 |
} |
2935 |
ic->arg[0] = (ssize_t)(tmp_addr + (addr & 0xffc)); |
2936 |
ic->arg[1] = (addr & 0xffc) + 4; |
2937 |
/* Branches are calculated as cur PC + offset. */ |
2938 |
/* Special case: branch within the same page: */ |
2939 |
{ |
2940 |
uint64_t mask_within_page = |
2941 |
((PPC_IC_ENTRIES_PER_PAGE-1) << 2) | 3; |
2942 |
uint64_t old_pc = addr; |
2943 |
uint64_t new_pc = old_pc + (int32_t)tmp_addr; |
2944 |
if ((old_pc & ~mask_within_page) == |
2945 |
(new_pc & ~mask_within_page)) { |
2946 |
ic->f = samepage_function; |
2947 |
ic->arg[0] = (size_t) ( |
2948 |
cpu->cd.ppc.cur_ic_page + |
2949 |
((new_pc & mask_within_page) >> 2)); |
2950 |
} |
2951 |
} |
2952 |
if (aa_bit) { |
2953 |
if (lk_bit) { |
2954 |
if (cpu->machine->show_trace_tree) { |
2955 |
ic->f = instr(bla_trace); |
2956 |
} else { |
2957 |
ic->f = instr(bla); |
2958 |
} |
2959 |
} else { |
2960 |
ic->f = instr(ba); |
2961 |
} |
2962 |
ic->arg[0] = (ssize_t)tmp_addr; |
2963 |
} |
2964 |
break; |
2965 |
|
2966 |
case PPC_HI6_19: |
2967 |
xo = (iword >> 1) & 1023; |
2968 |
switch (xo) { |
2969 |
|
2970 |
case PPC_19_BCLR: |
2971 |
case PPC_19_BCCTR: |
2972 |
bo = (iword >> 21) & 31; |
2973 |
bi = (iword >> 16) & 31; |
2974 |
bh = (iword >> 11) & 3; |
2975 |
lk_bit = iword & 1; |
2976 |
if (xo == PPC_19_BCLR) { |
2977 |
if (lk_bit) |
2978 |
ic->f = instr(bclr_l); |
2979 |
else { |
2980 |
ic->f = instr(bclr); |
2981 |
if (!cpu->machine->show_trace_tree && |
2982 |
(bo & 0x14) == 0x14) |
2983 |
ic->f = instr(bclr_20); |
2984 |
} |
2985 |
} else { |
2986 |
if (lk_bit) |
2987 |
ic->f = instr(bcctr_l); |
2988 |
else |
2989 |
ic->f = instr(bcctr); |
2990 |
} |
2991 |
ic->arg[0] = bo; |
2992 |
ic->arg[1] = 31 - bi; |
2993 |
ic->arg[2] = bh; |
2994 |
break; |
2995 |
|
2996 |
case PPC_19_ISYNC: |
2997 |
/* TODO */ |
2998 |
ic->f = instr(nop); |
2999 |
break; |
3000 |
|
3001 |
case PPC_19_RFI: |
3002 |
ic->f = instr(rfi); |
3003 |
break; |
3004 |
|
3005 |
case PPC_19_RFID: |
3006 |
ic->f = instr(rfid); |
3007 |
break; |
3008 |
|
3009 |
case PPC_19_MCRF: |
3010 |
bf = (iword >> 23) & 7; |
3011 |
bfa = (iword >> 18) & 7; |
3012 |
ic->arg[0] = 28 - 4*bf; |
3013 |
ic->arg[1] = 28 - 4*bfa; |
3014 |
ic->f = instr(mcrf); |
3015 |
break; |
3016 |
|
3017 |
case PPC_19_CRAND: |
3018 |
case PPC_19_CRANDC: |
3019 |
case PPC_19_CREQV: |
3020 |
case PPC_19_CROR: |
3021 |
case PPC_19_CRORC: |
3022 |
case PPC_19_CRNOR: |
3023 |
case PPC_19_CRXOR: |
3024 |
switch (xo) { |
3025 |
case PPC_19_CRAND: ic->f = instr(crand); break; |
3026 |
case PPC_19_CRANDC: ic->f = instr(crandc); break; |
3027 |
case PPC_19_CREQV: ic->f = instr(creqv); break; |
3028 |
case PPC_19_CROR: ic->f = instr(cror); break; |
3029 |
case PPC_19_CRORC: ic->f = instr(crorc); break; |
3030 |
case PPC_19_CRNOR: ic->f = instr(crnor); break; |
3031 |
case PPC_19_CRXOR: ic->f = instr(crxor); break; |
3032 |
} |
3033 |
ic->arg[0] = iword; |
3034 |
break; |
3035 |
|
3036 |
default:goto bad; |
3037 |
} |
3038 |
break; |
3039 |
|
3040 |
case PPC_HI6_RLWNM: |
3041 |
case PPC_HI6_RLWINM: |
3042 |
ra = (iword >> 16) & 31; |
3043 |
mb = (iword >> 6) & 31; |
3044 |
me = (iword >> 1) & 31; |
3045 |
rc = iword & 1; |
3046 |
mask = 0; |
3047 |
for (;;) { |
3048 |
mask |= ((uint32_t)0x80000000 >> mb); |
3049 |
if (mb == me) |
3050 |
break; |
3051 |
mb ++; mb &= 31; |
3052 |
} |
3053 |
switch (main_opcode) { |
3054 |
case PPC_HI6_RLWNM: |
3055 |
ic->f = rc? instr(rlwnm_dot) : instr(rlwnm); break; |
3056 |
case PPC_HI6_RLWINM: |
3057 |
ic->f = rc? instr(rlwinm_dot) : instr(rlwinm); break; |
3058 |
} |
3059 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3060 |
ic->arg[1] = mask; |
3061 |
ic->arg[2] = (uint32_t)iword; |
3062 |
break; |
3063 |
|
3064 |
case PPC_HI6_RLWIMI: |
3065 |
rs = (iword >> 21) & 31; |
3066 |
ra = (iword >> 16) & 31; |
3067 |
ic->f = instr(rlwimi); |
3068 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3069 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3070 |
ic->arg[2] = (uint32_t)iword; |
3071 |
break; |
3072 |
|
3073 |
case PPC_HI6_LMW: |
3074 |
case PPC_HI6_STMW: |
3075 |
/* NOTE: Loads use rt, not rs. */ |
3076 |
rs = (iword >> 21) & 31; |
3077 |
ra = (iword >> 16) & 31; |
3078 |
ic->arg[0] = rs; |
3079 |
if (ra == 0) |
3080 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3081 |
else |
3082 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3083 |
ic->arg[2] = (int32_t)(int16_t)iword; |
3084 |
switch (main_opcode) { |
3085 |
case PPC_HI6_LMW: |
3086 |
ic->f = instr(lmw); |
3087 |
break; |
3088 |
case PPC_HI6_STMW: |
3089 |
ic->f = instr(stmw); |
3090 |
break; |
3091 |
} |
3092 |
break; |
3093 |
|
3094 |
case PPC_HI6_30: |
3095 |
xo = (iword >> 2) & 7; |
3096 |
switch (xo) { |
3097 |
|
3098 |
case PPC_30_RLDICL: |
3099 |
case PPC_30_RLDICR: |
3100 |
case PPC_30_RLDIMI: |
3101 |
switch (xo) { |
3102 |
case PPC_30_RLDICL: ic->f = instr(rldicl); break; |
3103 |
case PPC_30_RLDICR: ic->f = instr(rldicr); break; |
3104 |
case PPC_30_RLDIMI: ic->f = instr(rldimi); break; |
3105 |
} |
3106 |
ic->arg[0] = iword; |
3107 |
if (cpu->cd.ppc.bits == 32) { |
3108 |
fatal("TODO: rld* in 32-bit mode?\n"); |
3109 |
goto bad; |
3110 |
} |
3111 |
break; |
3112 |
|
3113 |
default:goto bad; |
3114 |
} |
3115 |
break; |
3116 |
|
3117 |
case PPC_HI6_31: |
3118 |
xo = (iword >> 1) & 1023; |
3119 |
switch (xo) { |
3120 |
|
3121 |
case PPC_31_CMPL: |
3122 |
case PPC_31_CMP: |
3123 |
bf = (iword >> 23) & 7; |
3124 |
l_bit = (iword >> 21) & 1; |
3125 |
ra = (iword >> 16) & 31; |
3126 |
rb = (iword >> 11) & 31; |
3127 |
if (xo == PPC_31_CMPL) { |
3128 |
if (l_bit) |
3129 |
ic->f = instr(cmpld); |
3130 |
else |
3131 |
ic->f = instr(cmplw); |
3132 |
} else { |
3133 |
if (l_bit) |
3134 |
ic->f = instr(cmpd); |
3135 |
else { |
3136 |
if (bf == 0) |
3137 |
ic->f = instr(cmpw_cr0); |
3138 |
else |
3139 |
ic->f = instr(cmpw); |
3140 |
} |
3141 |
} |
3142 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3143 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3144 |
ic->arg[2] = 28 - 4*bf; |
3145 |
break; |
3146 |
|
3147 |
case PPC_31_CNTLZW: |
3148 |
rs = (iword >> 21) & 31; |
3149 |
ra = (iword >> 16) & 31; |
3150 |
rc = iword & 1; |
3151 |
if (rc) { |
3152 |
fatal("TODO: rc\n"); |
3153 |
goto bad; |
3154 |
} |
3155 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3156 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3157 |
ic->f = instr(cntlzw); |
3158 |
break; |
3159 |
|
3160 |
case PPC_31_MFSPR: |
3161 |
rt = (iword >> 21) & 31; |
3162 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3163 |
debug_spr_usage(cpu->pc, spr); |
3164 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3165 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.spr[spr]); |
3166 |
switch (spr) { |
3167 |
case SPR_PMC1: ic->f = instr(mfspr_pmc1); break; |
3168 |
default: ic->f = instr(mfspr); |
3169 |
} |
3170 |
break; |
3171 |
|
3172 |
case PPC_31_MTSPR: |
3173 |
rs = (iword >> 21) & 31; |
3174 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3175 |
debug_spr_usage(cpu->pc, spr); |
3176 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3177 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.spr[spr]); |
3178 |
switch (spr) { |
3179 |
case SPR_LR: |
3180 |
ic->f = instr(mtlr); |
3181 |
break; |
3182 |
case SPR_CTR: |
3183 |
ic->f = instr(mtctr); |
3184 |
break; |
3185 |
default:ic->f = instr(mtspr); |
3186 |
} |
3187 |
break; |
3188 |
|
3189 |
case PPC_31_MFCR: |
3190 |
rt = (iword >> 21) & 31; |
3191 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3192 |
ic->f = instr(mfcr); |
3193 |
break; |
3194 |
|
3195 |
case PPC_31_MFMSR: |
3196 |
rt = (iword >> 21) & 31; |
3197 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3198 |
ic->f = instr(mfmsr); |
3199 |
break; |
3200 |
|
3201 |
case PPC_31_MTMSR: |
3202 |
case PPC_31_MTMSRD: |
3203 |
rs = (iword >> 21) & 31; |
3204 |
l_bit = (iword >> 16) & 1; |
3205 |
if (l_bit) { |
3206 |
fatal("TODO: mtmsr l-bit\n"); |
3207 |
goto bad; |
3208 |
} |
3209 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3210 |
ic->arg[1] = (addr & 0xfff) + 4; |
3211 |
ic->arg[2] = xo == PPC_31_MTMSRD; |
3212 |
ic->f = instr(mtmsr); |
3213 |
break; |
3214 |
|
3215 |
case PPC_31_MTCRF: |
3216 |
rs = (iword >> 21) & 31; |
3217 |
{ |
3218 |
int i, fxm = (iword >> 12) & 255; |
3219 |
uint32_t tmp = 0; |
3220 |
for (i=0; i<8; i++, fxm <<= 1) { |
3221 |
tmp <<= 4; |
3222 |
if (fxm & 128) |
3223 |
tmp |= 0xf; |
3224 |
} |
3225 |
ic->arg[1] = (uint32_t)tmp; |
3226 |
} |
3227 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3228 |
ic->f = instr(mtcrf); |
3229 |
break; |
3230 |
|
3231 |
case PPC_31_MFSRIN: |
3232 |
case PPC_31_MTSRIN: |
3233 |
rt = (iword >> 21) & 31; |
3234 |
rb = (iword >> 11) & 31; |
3235 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3236 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3237 |
switch (xo) { |
3238 |
case PPC_31_MFSRIN: ic->f = instr(mfsrin); break; |
3239 |
case PPC_31_MTSRIN: ic->f = instr(mtsrin); break; |
3240 |
} |
3241 |
if (cpu->cd.ppc.bits == 64) { |
3242 |
fatal("Not yet for 64-bit mode\n"); |
3243 |
goto bad; |
3244 |
} |
3245 |
break; |
3246 |
|
3247 |
case PPC_31_MFSR: |
3248 |
case PPC_31_MTSR: |
3249 |
rt = (iword >> 21) & 31; |
3250 |
ic->arg[0] = (iword >> 16) & 15; |
3251 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3252 |
switch (xo) { |
3253 |
case PPC_31_MFSR: ic->f = instr(mfsr); break; |
3254 |
case PPC_31_MTSR: ic->f = instr(mtsr); break; |
3255 |
} |
3256 |
if (cpu->cd.ppc.bits == 64) { |
3257 |
fatal("Not yet for 64-bit mode\n"); |
3258 |
goto bad; |
3259 |
} |
3260 |
break; |
3261 |
|
3262 |
case PPC_31_SRAWI: |
3263 |
rs = (iword >> 21) & 31; |
3264 |
ra = (iword >> 16) & 31; |
3265 |
sh = (iword >> 11) & 31; |
3266 |
rc = iword & 1; |
3267 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3268 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3269 |
ic->arg[2] = sh; |
3270 |
if (rc) |
3271 |
ic->f = instr(srawi_dot); |
3272 |
else |
3273 |
ic->f = instr(srawi); |
3274 |
break; |
3275 |
|
3276 |
case PPC_31_SYNC: |
3277 |
case PPC_31_DSSALL: |
3278 |
case PPC_31_EIEIO: |
3279 |
case PPC_31_DCBST: |
3280 |
case PPC_31_DCBTST: |
3281 |
case PPC_31_DCBF: |
3282 |
case PPC_31_DCBT: |
3283 |
case PPC_31_ICBI: |
3284 |
ic->f = instr(nop); |
3285 |
break; |
3286 |
|
3287 |
case PPC_31_DCBZ: |
3288 |
ra = (iword >> 16) & 31; |
3289 |
rb = (iword >> 11) & 31; |
3290 |
if (ra == 0) |
3291 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.zero); |
3292 |
else |
3293 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3294 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3295 |
ic->arg[2] = addr & 0xfff; |
3296 |
ic->f = instr(dcbz); |
3297 |
break; |
3298 |
|
3299 |
case PPC_31_TLBIA: |
3300 |
ic->f = instr(tlbia); |
3301 |
break; |
3302 |
|
3303 |
case PPC_31_TLBSYNC: |
3304 |
/* According to IBM, "Ensures that a tlbie and |
3305 |
tlbia instruction executed by one processor has |
3306 |
completed on all other processors.", which in |
3307 |
GXemul means a nop :-) */ |
3308 |
ic->f = instr(nop); |
3309 |
break; |
3310 |
|
3311 |
case PPC_31_TLBIE: |
3312 |
/* TODO: POWER also uses ra? */ |
3313 |
rb = (iword >> 11) & 31; |
3314 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3315 |
ic->f = instr(tlbie); |
3316 |
break; |
3317 |
|
3318 |
case PPC_31_TLBLD: /* takes an arg */ |
3319 |
rb = (iword >> 11) & 31; |
3320 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3321 |
ic->f = instr(tlbld); |
3322 |
break; |
3323 |
|
3324 |
case PPC_31_TLBLI: /* takes an arg */ |
3325 |
rb = (iword >> 11) & 31; |
3326 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3327 |
ic->f = instr(tlbli); |
3328 |
break; |
3329 |
|
3330 |
case PPC_31_TLBSX_DOT: |
3331 |
/* TODO */ |
3332 |
ic->f = instr(tlbsx_dot); |
3333 |
break; |
3334 |
|
3335 |
case PPC_31_MFTB: |
3336 |
rt = (iword >> 21) & 31; |
3337 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3338 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3339 |
switch (spr) { |
3340 |
case 268: ic->f = instr(mftb); break; |
3341 |
case 269: ic->f = instr(mftbu); break; |
3342 |
default:fatal("mftb spr=%i?\n", spr); |
3343 |
goto bad; |
3344 |
} |
3345 |
break; |
3346 |
|
3347 |
case PPC_31_NEG: |
3348 |
rt = (iword >> 21) & 31; |
3349 |
ra = (iword >> 16) & 31; |
3350 |
rc = iword & 1; |
3351 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3352 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3353 |
if (rc) |
3354 |
ic->f = instr(neg_dot); |
3355 |
else |
3356 |
ic->f = instr(neg); |
3357 |
break; |
3358 |
|
3359 |
case PPC_31_LWARX: |
3360 |
case PPC_31_LDARX: |
3361 |
case PPC_31_STWCX_DOT: |
3362 |
case PPC_31_STDCX_DOT: |
3363 |
ic->arg[0] = iword; |
3364 |
ic->f = instr(llsc); |
3365 |
break; |
3366 |
|
3367 |
case PPC_31_LSWI: |
3368 |
case PPC_31_STSWI: |
3369 |
rs = (iword >> 21) & 31; |
3370 |
ra = (iword >> 16) & 31; |
3371 |
nb = (iword >> 11) & 31; |
3372 |
ic->arg[0] = rs; |
3373 |
if (ra == 0) |
3374 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3375 |
else |
3376 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3377 |
ic->arg[2] = nb == 0? 32 : nb; |
3378 |
switch (xo) { |
3379 |
case PPC_31_LSWI: ic->f = instr(lswi); break; |
3380 |
case PPC_31_STSWI: ic->f = instr(stswi); break; |
3381 |
} |
3382 |
break; |
3383 |
|
3384 |
case PPC_31_WRTEEI: |
3385 |
ic->arg[0] = iword & 0x8000; |
3386 |
ic->f = instr(wrteei); |
3387 |
break; |
3388 |
|
3389 |
case 0x1c3: |
3390 |
fatal("[ mtdcr: TODO ]\n"); |
3391 |
ic->f = instr(nop); |
3392 |
break; |
3393 |
|
3394 |
case PPC_31_LBZX: |
3395 |
case PPC_31_LBZUX: |
3396 |
case PPC_31_LHAX: |
3397 |
case PPC_31_LHAUX: |
3398 |
case PPC_31_LHZX: |
3399 |
case PPC_31_LHZUX: |
3400 |
case PPC_31_LWZX: |
3401 |
case PPC_31_LWZUX: |
3402 |
case PPC_31_LHBRX: |
3403 |
case PPC_31_LWBRX: |
3404 |
case PPC_31_LFDX: |
3405 |
case PPC_31_LFSX: |
3406 |
case PPC_31_STBX: |
3407 |
case PPC_31_STBUX: |
3408 |
case PPC_31_STHX: |
3409 |
case PPC_31_STHUX: |
3410 |
case PPC_31_STWX: |
3411 |
case PPC_31_STWUX: |
3412 |
case PPC_31_STDX: |
3413 |
case PPC_31_STDUX: |
3414 |
case PPC_31_STHBRX: |
3415 |
case PPC_31_STWBRX: |
3416 |
case PPC_31_STFDX: |
3417 |
case PPC_31_STFSX: |
3418 |
rs = (iword >> 21) & 31; |
3419 |
ra = (iword >> 16) & 31; |
3420 |
rb = (iword >> 11) & 31; |
3421 |
if (ra == 0) |
3422 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3423 |
else |
3424 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3425 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3426 |
load = 0; zero = 1; size = 0; update = 0; |
3427 |
byterev = 0; fp = 0; |
3428 |
ic->f = NULL; |
3429 |
switch (xo) { |
3430 |
case PPC_31_LBZX: load = 1; break; |
3431 |
case PPC_31_LBZUX: load=update=1; break; |
3432 |
case PPC_31_LHAX: size=1; load=1; zero=0; break; |
3433 |
case PPC_31_LHAUX: size=1; load=update=1; zero=0; break; |
3434 |
case PPC_31_LHZX: size=1; load=1; break; |
3435 |
case PPC_31_LHZUX: size=1; load=update = 1; break; |
3436 |
case PPC_31_LWZX: size=2; load=1; break; |
3437 |
case PPC_31_LWZUX: size=2; load=update = 1; break; |
3438 |
case PPC_31_LHBRX: size=1; load=1; byterev=1; |
3439 |
ic->f = instr(lhbrx); break; |
3440 |
case PPC_31_LWBRX: size=2; load=1; byterev=1; |
3441 |
ic->f = instr(lwbrx); break; |
3442 |
case PPC_31_LFDX: size=3; load=1; fp=1; |
3443 |
ic->f = instr(lfdx); break; |
3444 |
case PPC_31_LFSX: size=2; load=1; fp=1; |
3445 |
ic->f = instr(lfsx); break; |
3446 |
case PPC_31_STBX: break; |
3447 |
case PPC_31_STBUX: update = 1; break; |
3448 |
case PPC_31_STHX: size=1; break; |
3449 |
case PPC_31_STHUX: size=1; update = 1; break; |
3450 |
case PPC_31_STWX: size=2; break; |
3451 |
case PPC_31_STWUX: size=2; update = 1; break; |
3452 |
case PPC_31_STDX: size=3; break; |
3453 |
case PPC_31_STDUX: size=3; update = 1; break; |
3454 |
case PPC_31_STHBRX:size=1; byterev = 1; |
3455 |
ic->f = instr(sthbrx); break; |
3456 |
case PPC_31_STWBRX:size=2; byterev = 1; |
3457 |
ic->f = instr(stwbrx); break; |
3458 |
case PPC_31_STFDX: size=3; fp=1; |
3459 |
ic->f = instr(stfdx); break; |
3460 |
case PPC_31_STFSX: size=2; fp=1; |
3461 |
ic->f = instr(stfsx); break; |
3462 |
} |
3463 |
if (fp) |
3464 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rs]); |
3465 |
else |
3466 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3467 |
if (!byterev && ic->f == NULL) { |
3468 |
ic->f = |
3469 |
#ifdef MODE32 |
3470 |
ppc32_loadstore_indexed |
3471 |
#else |
3472 |
ppc_loadstore_indexed |
3473 |
#endif |
3474 |
[size + 4*zero + 8*load + 16*update]; |
3475 |
} |
3476 |
if (ra == 0 && update) { |
3477 |
fatal("TODO: ra=0 && update?\n"); |
3478 |
goto bad; |
3479 |
} |
3480 |
break; |
3481 |
|
3482 |
case PPC_31_EXTSB: |
3483 |
case PPC_31_EXTSH: |
3484 |
case PPC_31_EXTSW: |
3485 |
case PPC_31_SLW: |
3486 |
case PPC_31_SLD: |
3487 |
case PPC_31_SRAW: |
3488 |
case PPC_31_SRW: |
3489 |
case PPC_31_AND: |
3490 |
case PPC_31_NAND: |
3491 |
case PPC_31_ANDC: |
3492 |
case PPC_31_NOR: |
3493 |
case PPC_31_OR: |
3494 |
case PPC_31_ORC: |
3495 |
case PPC_31_XOR: |
3496 |
case PPC_31_EQV: |
3497 |
rs = (iword >> 21) & 31; |
3498 |
ra = (iword >> 16) & 31; |
3499 |
rb = (iword >> 11) & 31; |
3500 |
rc = iword & 1; |
3501 |
rc_f = NULL; |
3502 |
switch (xo) { |
3503 |
case PPC_31_EXTSB:ic->f = instr(extsb); |
3504 |
rc_f = instr(extsb_dot); break; |
3505 |
case PPC_31_EXTSH:ic->f = instr(extsh); |
3506 |
rc_f = instr(extsh_dot); break; |
3507 |
case PPC_31_EXTSW:ic->f = instr(extsw); |
3508 |
rc_f = instr(extsw_dot); break; |
3509 |
case PPC_31_SLW: ic->f = instr(slw); |
3510 |
rc_f = instr(slw_dot); break; |
3511 |
case PPC_31_SLD: ic->f = instr(sld); |
3512 |
rc_f = instr(sld_dot); break; |
3513 |
case PPC_31_SRAW: ic->f = instr(sraw); |
3514 |
rc_f = instr(sraw_dot); break; |
3515 |
case PPC_31_SRW: ic->f = instr(srw); |
3516 |
rc_f = instr(srw_dot); break; |
3517 |
case PPC_31_AND: ic->f = instr(and); |
3518 |
rc_f = instr(and_dot); break; |
3519 |
case PPC_31_NAND: ic->f = instr(nand); |
3520 |
rc_f = instr(nand_dot); break; |
3521 |
case PPC_31_ANDC: ic->f = instr(andc); |
3522 |
rc_f = instr(andc_dot); break; |
3523 |
case PPC_31_NOR: ic->f = instr(nor); |
3524 |
rc_f = instr(nor_dot); break; |
3525 |
case PPC_31_OR: ic->f = rs == rb? instr(mr) |
3526 |
: instr(or); |
3527 |
rc_f = instr(or_dot); break; |
3528 |
case PPC_31_ORC: ic->f = instr(orc); |
3529 |
rc_f = instr(orc_dot); break; |
3530 |
case PPC_31_XOR: ic->f = instr(xor); |
3531 |
rc_f = instr(xor_dot); break; |
3532 |
case PPC_31_EQV: ic->f = instr(eqv); |
3533 |
rc_f = instr(eqv_dot); break; |
3534 |
} |
3535 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3536 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3537 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3538 |
if (rc) |
3539 |
ic->f = rc_f; |
3540 |
break; |
3541 |
|
3542 |
case PPC_31_MULLW: |
3543 |
case PPC_31_MULHW: |
3544 |
case PPC_31_MULHWU: |
3545 |
case PPC_31_DIVW: |
3546 |
case PPC_31_DIVWU: |
3547 |
case PPC_31_ADD: |
3548 |
case PPC_31_ADDC: |
3549 |
case PPC_31_ADDE: |
3550 |
case PPC_31_ADDME: |
3551 |
case PPC_31_ADDZE: |
3552 |
case PPC_31_SUBF: |
3553 |
case PPC_31_SUBFC: |
3554 |
case PPC_31_SUBFE: |
3555 |
case PPC_31_SUBFME: |
3556 |
case PPC_31_SUBFZE: |
3557 |
rt = (iword >> 21) & 31; |
3558 |
ra = (iword >> 16) & 31; |
3559 |
rb = (iword >> 11) & 31; |
3560 |
oe_bit = (iword >> 10) & 1; |
3561 |
rc = iword & 1; |
3562 |
if (oe_bit) { |
3563 |
fatal("oe_bit not yet implemented\n"); |
3564 |
goto bad; |
3565 |
} |
3566 |
switch (xo) { |
3567 |
case PPC_31_MULLW: ic->f = instr(mullw); break; |
3568 |
case PPC_31_MULHW: ic->f = instr(mulhw); break; |
3569 |
case PPC_31_MULHWU: ic->f = instr(mulhwu); break; |
3570 |
case PPC_31_DIVW: ic->f = instr(divw); n64=1; break; |
3571 |
case PPC_31_DIVWU: ic->f = instr(divwu); n64=1; break; |
3572 |
case PPC_31_ADD: ic->f = instr(add); break; |
3573 |
case PPC_31_ADDC: ic->f = instr(addc); n64=1; break; |
3574 |
case PPC_31_ADDE: ic->f = instr(adde); n64=1; break; |
3575 |
case PPC_31_ADDME: ic->f = instr(addme); n64=1; break; |
3576 |
case PPC_31_ADDZE: ic->f = instr(addze); n64=1; break; |
3577 |
case PPC_31_SUBF: ic->f = instr(subf); break; |
3578 |
case PPC_31_SUBFC: ic->f = instr(subfc); break; |
3579 |
case PPC_31_SUBFE: ic->f = instr(subfe); n64=1; break; |
3580 |
case PPC_31_SUBFME: ic->f = instr(subfme); n64=1; break; |
3581 |
case PPC_31_SUBFZE: ic->f = instr(subfze); n64=1;break; |
3582 |
} |
3583 |
if (rc) { |
3584 |
switch (xo) { |
3585 |
case PPC_31_ADD: |
3586 |
ic->f = instr(add_dot); break; |
3587 |
case PPC_31_ADDE: |
3588 |
ic->f = instr(adde_dot); break; |
3589 |
case PPC_31_ADDME: |
3590 |
ic->f = instr(addme_dot); break; |
3591 |
case PPC_31_ADDZE: |
3592 |
ic->f = instr(addze_dot); break; |
3593 |
case PPC_31_DIVW: |
3594 |
ic->f = instr(divw_dot); break; |
3595 |
case PPC_31_DIVWU: |
3596 |
ic->f = instr(divwu_dot); break; |
3597 |
case PPC_31_MULLW: |
3598 |
ic->f = instr(mullw_dot); break; |
3599 |
case PPC_31_MULHW: |
3600 |
ic->f = instr(mulhw_dot); break; |
3601 |
case PPC_31_MULHWU: |
3602 |
ic->f = instr(mulhwu_dot); break; |
3603 |
case PPC_31_SUBF: |
3604 |
ic->f = instr(subf_dot); break; |
3605 |
case PPC_31_SUBFC: |
3606 |
ic->f = instr(subfc_dot); break; |
3607 |
case PPC_31_SUBFE: |
3608 |
ic->f = instr(subfe_dot); break; |
3609 |
case PPC_31_SUBFME: |
3610 |
ic->f = instr(subfme_dot); break; |
3611 |
case PPC_31_SUBFZE: |
3612 |
ic->f = instr(subfze_dot); break; |
3613 |
default:fatal("RC bit not yet implemented\n"); |
3614 |
goto bad; |
3615 |
} |
3616 |
} |
3617 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3618 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3619 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3620 |
if (cpu->cd.ppc.bits == 64 && n64) { |
3621 |
fatal("Not yet for 64-bit mode\n"); |
3622 |
goto bad; |
3623 |
} |
3624 |
break; |
3625 |
|
3626 |
case PPC_31_LVX: |
3627 |
case PPC_31_LVXL: |
3628 |
case PPC_31_STVX: |
3629 |
case PPC_31_STVXL: |
3630 |
fatal("[ TODO: altivec load/store ]\n"); |
3631 |
load = 0; |
3632 |
switch (xo) { |
3633 |
case PPC_31_LVX: |
3634 |
case PPC_31_LVXL: |
3635 |
load = 1; break; |
3636 |
} |
3637 |
rs = (iword >> 21) & 31; |
3638 |
ra = (iword >> 16) & 31; |
3639 |
rb = (iword >> 11) & 31; |
3640 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.vr_hi[rs]); |
3641 |
if (ra == 0) |
3642 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3643 |
else |
3644 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3645 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3646 |
ic->f = |
3647 |
#ifdef MODE32 |
3648 |
ppc32_loadstore_indexed |
3649 |
#else |
3650 |
ppc_loadstore_indexed |
3651 |
#endif |
3652 |
[3 + 4 * load]; |
3653 |
break; |
3654 |
|
3655 |
default:goto bad; |
3656 |
} |
3657 |
break; |
3658 |
|
3659 |
case PPC_HI6_59: |
3660 |
xo = (iword >> 1) & 1023; |
3661 |
rt = (iword >> 21) & 31; |
3662 |
ra = (iword >> 16) & 31; |
3663 |
rb = (iword >> 11) & 31; |
3664 |
rs = (iword >> 6) & 31; /* actually frc */ |
3665 |
rc = iword & 1; |
3666 |
|
3667 |
if (rc) { |
3668 |
fatal("Floating point (59) with rc bit! TODO\n"); |
3669 |
goto bad; |
3670 |
} |
3671 |
|
3672 |
/* NOTE: Some floating-point instructions are selected |
3673 |
using only the lowest 5 bits, not all 10! */ |
3674 |
switch (xo & 31) { |
3675 |
case PPC_59_FDIVS: |
3676 |
case PPC_59_FSUBS: |
3677 |
case PPC_59_FADDS: |
3678 |
switch (xo & 31) { |
3679 |
case PPC_59_FDIVS: ic->f = instr(fdivs); break; |
3680 |
case PPC_59_FSUBS: ic->f = instr(fsubs); break; |
3681 |
case PPC_59_FADDS: ic->f = instr(fadds); break; |
3682 |
} |
3683 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3684 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3685 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3686 |
break; |
3687 |
case PPC_59_FMULS: |
3688 |
ic->f = instr(fmuls); |
3689 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3690 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3691 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rs]); /* frc */ |
3692 |
break; |
3693 |
default:/* Use all 10 bits of xo: */ |
3694 |
switch (xo) { |
3695 |
default:goto bad; |
3696 |
} |
3697 |
} |
3698 |
break; |
3699 |
|
3700 |
case PPC_HI6_63: |
3701 |
xo = (iword >> 1) & 1023; |
3702 |
rt = (iword >> 21) & 31; |
3703 |
ra = (iword >> 16) & 31; |
3704 |
rb = (iword >> 11) & 31; |
3705 |
rs = (iword >> 6) & 31; /* actually frc */ |
3706 |
rc = iword & 1; |
3707 |
|
3708 |
if (rc) { |
3709 |
fatal("Floating point (63) with rc bit! TODO\n"); |
3710 |
goto bad; |
3711 |
} |
3712 |
|
3713 |
/* NOTE: Some floating-point instructions are selected |
3714 |
using only the lowest 5 bits, not all 10! */ |
3715 |
switch (xo & 31) { |
3716 |
case PPC_63_FDIV: |
3717 |
case PPC_63_FSUB: |
3718 |
case PPC_63_FADD: |
3719 |
switch (xo & 31) { |
3720 |
case PPC_63_FDIV: ic->f = instr(fdiv); break; |
3721 |
case PPC_63_FSUB: ic->f = instr(fsub); break; |
3722 |
case PPC_63_FADD: ic->f = instr(fadd); break; |
3723 |
} |
3724 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3725 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3726 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3727 |
break; |
3728 |
case PPC_63_FMUL: |
3729 |
ic->f = instr(fmul); |
3730 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3731 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3732 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rs]); /* frc */ |
3733 |
break; |
3734 |
case PPC_63_FMSUB: |
3735 |
case PPC_63_FMADD: |
3736 |
switch (xo & 31) { |
3737 |
case PPC_63_FMSUB: ic->f = instr(fmsub); break; |
3738 |
case PPC_63_FMADD: ic->f = instr(fmadd); break; |
3739 |
} |
3740 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3741 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3742 |
ic->arg[2] = iword; |
3743 |
break; |
3744 |
default:/* Use all 10 bits of xo: */ |
3745 |
switch (xo) { |
3746 |
case PPC_63_FCMPU: |
3747 |
ic->f = instr(fcmpu); |
3748 |
ic->arg[0] = 28 - 4*(rt >> 2); |
3749 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3750 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3751 |
break; |
3752 |
case PPC_63_FRSP: |
3753 |
case PPC_63_FCTIWZ: |
3754 |
case PPC_63_FNEG: |
3755 |
case PPC_63_FMR: |
3756 |
switch (xo) { |
3757 |
case PPC_63_FRSP: ic->f = instr(frsp); break; |
3758 |
case PPC_63_FCTIWZ: ic->f = instr(fctiwz);break; |
3759 |
case PPC_63_FNEG: ic->f = instr(fneg); break; |
3760 |
case PPC_63_FMR: ic->f = instr(fmr); break; |
3761 |
} |
3762 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3763 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3764 |
break; |
3765 |
case PPC_63_MFFS: |
3766 |
ic->f = instr(mffs); |
3767 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3768 |
break; |
3769 |
case PPC_63_MTFSF: |
3770 |
ic->f = instr(mtfsf); |
3771 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3772 |
ic->arg[1] = 0; |
3773 |
for (bi=7; bi>=0; bi--) { |
3774 |
ic->arg[1] <<= 8; |
3775 |
if (iword & (1 << (17+bi))) |
3776 |
ic->arg[1] |= 0xf; |
3777 |
} |
3778 |
break; |
3779 |
default:goto bad; |
3780 |
} |
3781 |
} |
3782 |
break; |
3783 |
|
3784 |
default:goto bad; |
3785 |
} |
3786 |
|
3787 |
|
3788 |
#define DYNTRANS_TO_BE_TRANSLATED_TAIL |
3789 |
#include "cpu_dyntrans.c" |
3790 |
#undef DYNTRANS_TO_BE_TRANSLATED_TAIL |
3791 |
} |
3792 |
|