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/* |
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* Copyright (C) 2005 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 1.44 2005/11/24 01:31:54 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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|
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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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|
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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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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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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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DYNTRANS_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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DYNTRANS_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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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) << 2); |
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cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
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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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DYNTRANS_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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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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DYNTRANS_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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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) << 2); |
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cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
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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); |
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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(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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DYNTRANS_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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* b: Branch (to a different translated page) |
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* |
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* arg[0] = relative offset (as an int32_t) |
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*/ |
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X(b) |
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{ |
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uint64_t low_pc; |
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|
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/* Calculate new PC from this instruction + arg[0] */ |
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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); |
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cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
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cpu->pc += (low_pc << 2); |
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cpu->pc += (int32_t)ic->arg[0]; |
328 |
|
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/* Find the new physical page and update the translation pointers: */ |
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DYNTRANS_PC_TO_POINTERS(cpu); |
331 |
} |
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X(ba) |
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{ |
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cpu->pc = (int32_t)ic->arg[0]; |
335 |
DYNTRANS_PC_TO_POINTERS(cpu); |
336 |
} |
337 |
|
338 |
|
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/* |
340 |
* bc: Branch Conditional (to a different translated page) |
341 |
* |
342 |
* arg[0] = relative offset (as an int32_t) |
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* arg[1] = bo |
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* arg[2] = bi |
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*/ |
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X(bc) |
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{ |
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MODE_uint_t tmp; |
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int ctr_ok, cond_ok, bi = ic->arg[2], bo = ic->arg[1]; |
350 |
if (!(bo & 4)) |
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cpu->cd.ppc.spr[SPR_CTR] --; |
352 |
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; |
356 |
cond_ok |= ( ((bo >> 3) & 1) == |
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((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
358 |
if (ctr_ok && cond_ok) |
359 |
instr(b)(cpu,ic); |
360 |
} |
361 |
X(bcl) |
362 |
{ |
363 |
MODE_uint_t tmp; |
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int ctr_ok, cond_ok, bi = ic->arg[2], bo = ic->arg[1], low_pc; |
365 |
|
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/* Calculate LR: */ |
367 |
low_pc = ((size_t)ic - (size_t) |
368 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
369 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
370 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
371 |
|
372 |
if (!(bo & 4)) |
373 |
cpu->cd.ppc.spr[SPR_CTR] --; |
374 |
ctr_ok = (bo >> 2) & 1; |
375 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
376 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
377 |
cond_ok = (bo >> 4) & 1; |
378 |
cond_ok |= ( ((bo >> 3) & 1) == |
379 |
((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
380 |
if (ctr_ok && cond_ok) |
381 |
instr(b)(cpu,ic); |
382 |
} |
383 |
|
384 |
|
385 |
/* |
386 |
* b_samepage: Branch (to within the same translated page) |
387 |
* |
388 |
* arg[0] = pointer to new ppc_instr_call |
389 |
*/ |
390 |
X(b_samepage) |
391 |
{ |
392 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
393 |
} |
394 |
|
395 |
|
396 |
/* |
397 |
* bc_samepage: Branch Conditional (to within the same page) |
398 |
* |
399 |
* arg[0] = new ic ptr |
400 |
* arg[1] = bo |
401 |
* arg[2] = bi |
402 |
*/ |
403 |
X(bc_samepage) |
404 |
{ |
405 |
MODE_uint_t tmp; |
406 |
int ctr_ok, cond_ok, bi = ic->arg[2], bo = ic->arg[1]; |
407 |
if (!(bo & 4)) |
408 |
cpu->cd.ppc.spr[SPR_CTR] --; |
409 |
ctr_ok = (bo >> 2) & 1; |
410 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
411 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
412 |
cond_ok = (bo >> 4) & 1; |
413 |
cond_ok |= ( ((bo >> 3) & 1) == |
414 |
((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
415 |
if (ctr_ok && cond_ok) |
416 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
417 |
} |
418 |
X(bc_samepage_no_ctr) |
419 |
{ |
420 |
int cond_ok, bi = ic->arg[2], bo = ic->arg[1]; |
421 |
cond_ok = (bo >> 4) & 1; |
422 |
cond_ok |= ( ((bo >> 3) & 1) == ((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
423 |
if (cond_ok) |
424 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
425 |
} |
426 |
X(bcl_samepage) |
427 |
{ |
428 |
MODE_uint_t tmp; |
429 |
int ctr_ok, cond_ok, bi = ic->arg[2], bo = ic->arg[1], low_pc; |
430 |
|
431 |
/* Calculate LR: */ |
432 |
low_pc = ((size_t)ic - (size_t) |
433 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
434 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
435 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
436 |
|
437 |
if (!(bo & 4)) |
438 |
cpu->cd.ppc.spr[SPR_CTR] --; |
439 |
ctr_ok = (bo >> 2) & 1; |
440 |
tmp = cpu->cd.ppc.spr[SPR_CTR]; |
441 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
442 |
cond_ok = (bo >> 4) & 1; |
443 |
cond_ok |= ( ((bo >> 3) & 1) == |
444 |
((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
445 |
if (ctr_ok && cond_ok) |
446 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
447 |
} |
448 |
|
449 |
|
450 |
/* |
451 |
* bl: Branch and Link (to a different translated page) |
452 |
* |
453 |
* arg[0] = relative offset (as an int32_t) |
454 |
*/ |
455 |
X(bl) |
456 |
{ |
457 |
uint32_t low_pc; |
458 |
|
459 |
/* Calculate LR: */ |
460 |
low_pc = ((size_t)ic - (size_t) |
461 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
462 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
463 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
464 |
|
465 |
/* Calculate new PC from this instruction + arg[0] */ |
466 |
low_pc = ((size_t)ic - (size_t) |
467 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
468 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
469 |
cpu->pc += (low_pc << 2); |
470 |
cpu->pc += (int32_t)ic->arg[0]; |
471 |
|
472 |
/* Find the new physical page and update the translation pointers: */ |
473 |
DYNTRANS_PC_TO_POINTERS(cpu); |
474 |
} |
475 |
X(bla) |
476 |
{ |
477 |
uint32_t low_pc = ((size_t)ic - (size_t) |
478 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
479 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
480 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
481 |
cpu->pc = (int32_t)ic->arg[0]; |
482 |
DYNTRANS_PC_TO_POINTERS(cpu); |
483 |
} |
484 |
|
485 |
|
486 |
/* |
487 |
* bl_trace: Branch and Link (to a different translated page) (with trace) |
488 |
* |
489 |
* arg[0] = relative offset (as an int32_t) |
490 |
*/ |
491 |
X(bl_trace) |
492 |
{ |
493 |
uint32_t low_pc; |
494 |
|
495 |
/* Calculate LR: */ |
496 |
low_pc = ((size_t)ic - (size_t) |
497 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
498 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
499 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
500 |
|
501 |
/* Calculate new PC from this instruction + arg[0] */ |
502 |
low_pc = ((size_t)ic - (size_t) |
503 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
504 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
505 |
cpu->pc += (low_pc << 2); |
506 |
cpu->pc += (int32_t)ic->arg[0]; |
507 |
|
508 |
cpu_functioncall_trace(cpu, cpu->pc); |
509 |
|
510 |
/* Find the new physical page and update the translation pointers: */ |
511 |
DYNTRANS_PC_TO_POINTERS(cpu); |
512 |
} |
513 |
X(bla_trace) |
514 |
{ |
515 |
uint32_t low_pc = ((size_t)ic - (size_t) |
516 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
517 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
518 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
519 |
cpu->pc = (int32_t)ic->arg[0]; |
520 |
cpu_functioncall_trace(cpu, cpu->pc); |
521 |
DYNTRANS_PC_TO_POINTERS(cpu); |
522 |
} |
523 |
|
524 |
|
525 |
/* |
526 |
* bl_samepage: Branch and Link (to within the same translated page) |
527 |
* |
528 |
* arg[0] = pointer to new ppc_instr_call |
529 |
*/ |
530 |
X(bl_samepage) |
531 |
{ |
532 |
uint32_t low_pc; |
533 |
|
534 |
/* Calculate LR: */ |
535 |
low_pc = ((size_t)ic - (size_t) |
536 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
537 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
538 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
539 |
|
540 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
541 |
} |
542 |
|
543 |
|
544 |
/* |
545 |
* bl_samepage_trace: Branch and Link (to within the same translated page) |
546 |
* |
547 |
* arg[0] = pointer to new ppc_instr_call |
548 |
*/ |
549 |
X(bl_samepage_trace) |
550 |
{ |
551 |
uint32_t low_pc; |
552 |
|
553 |
/* Calculate LR: */ |
554 |
low_pc = ((size_t)ic - (size_t) |
555 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call) + 1; |
556 |
cpu->cd.ppc.spr[SPR_LR] = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
557 |
cpu->cd.ppc.spr[SPR_LR] += (low_pc << 2); |
558 |
|
559 |
cpu->cd.ppc.next_ic = (struct ppc_instr_call *) ic->arg[0]; |
560 |
|
561 |
/* Calculate new PC (for the trace) */ |
562 |
low_pc = ((size_t)cpu->cd.ppc.next_ic - (size_t) |
563 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
564 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
565 |
cpu->pc += (low_pc << 2); |
566 |
cpu_functioncall_trace(cpu, cpu->pc); |
567 |
} |
568 |
|
569 |
|
570 |
/* |
571 |
* cntlzw: Count leading zeroes (32-bit word). |
572 |
* |
573 |
* arg[0] = ptr to rs |
574 |
* arg[1] = ptr to ra |
575 |
*/ |
576 |
X(cntlzw) |
577 |
{ |
578 |
uint32_t tmp = reg(ic->arg[0]); |
579 |
int i; |
580 |
for (i=0; i<32; i++) { |
581 |
if (tmp & 0x80000000) |
582 |
break; |
583 |
tmp <<= 1; |
584 |
} |
585 |
reg(ic->arg[1]) = i; |
586 |
} |
587 |
|
588 |
|
589 |
/* |
590 |
* cmpd: Compare Doubleword |
591 |
* |
592 |
* arg[0] = ptr to ra |
593 |
* arg[1] = ptr to rb |
594 |
* arg[2] = 28 - 4*bf |
595 |
*/ |
596 |
X(cmpd) |
597 |
{ |
598 |
int64_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
599 |
int bf_shift = ic->arg[2], c; |
600 |
if (tmp < tmp2) |
601 |
c = 8; |
602 |
else if (tmp > tmp2) |
603 |
c = 4; |
604 |
else |
605 |
c = 2; |
606 |
/* SO bit, copied from XER */ |
607 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
608 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
609 |
cpu->cd.ppc.cr |= (c << bf_shift); |
610 |
} |
611 |
|
612 |
|
613 |
/* |
614 |
* cmpld: Compare Doubleword, unsigned |
615 |
* |
616 |
* arg[0] = ptr to ra |
617 |
* arg[1] = ptr to rb |
618 |
* arg[2] = 28 - 4*bf |
619 |
*/ |
620 |
X(cmpld) |
621 |
{ |
622 |
uint64_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
623 |
int bf_shift = ic->arg[2], c; |
624 |
if (tmp < tmp2) |
625 |
c = 8; |
626 |
else if (tmp > tmp2) |
627 |
c = 4; |
628 |
else |
629 |
c = 2; |
630 |
/* SO bit, copied from XER */ |
631 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
632 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
633 |
cpu->cd.ppc.cr |= (c << bf_shift); |
634 |
} |
635 |
|
636 |
|
637 |
/* |
638 |
* cmpdi: Compare Doubleword immediate |
639 |
* |
640 |
* arg[0] = ptr to ra |
641 |
* arg[1] = int32_t imm |
642 |
* arg[2] = 28 - 4*bf |
643 |
*/ |
644 |
X(cmpdi) |
645 |
{ |
646 |
int64_t tmp = reg(ic->arg[0]), imm = (int32_t)ic->arg[1]; |
647 |
int bf_shift = ic->arg[2], c; |
648 |
if (tmp < imm) |
649 |
c = 8; |
650 |
else if (tmp > imm) |
651 |
c = 4; |
652 |
else |
653 |
c = 2; |
654 |
/* SO bit, copied from XER */ |
655 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
656 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
657 |
cpu->cd.ppc.cr |= (c << bf_shift); |
658 |
} |
659 |
|
660 |
|
661 |
/* |
662 |
* cmpldi: Compare Doubleword immediate, logical |
663 |
* |
664 |
* arg[0] = ptr to ra |
665 |
* arg[1] = int32_t imm |
666 |
* arg[2] = 28 - 4*bf |
667 |
*/ |
668 |
X(cmpldi) |
669 |
{ |
670 |
uint64_t tmp = reg(ic->arg[0]), imm = (uint32_t)ic->arg[1]; |
671 |
int bf_shift = ic->arg[2], c; |
672 |
if (tmp < imm) |
673 |
c = 8; |
674 |
else if (tmp > imm) |
675 |
c = 4; |
676 |
else |
677 |
c = 2; |
678 |
/* SO bit, copied from XER */ |
679 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
680 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
681 |
cpu->cd.ppc.cr |= (c << bf_shift); |
682 |
} |
683 |
|
684 |
|
685 |
/* |
686 |
* cmpw: Compare Word |
687 |
* |
688 |
* arg[0] = ptr to ra |
689 |
* arg[1] = ptr to rb |
690 |
* arg[2] = 28 - 4*bf |
691 |
*/ |
692 |
X(cmpw) |
693 |
{ |
694 |
int32_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
695 |
int bf_shift = ic->arg[2], c; |
696 |
if (tmp < tmp2) |
697 |
c = 8; |
698 |
else if (tmp > tmp2) |
699 |
c = 4; |
700 |
else |
701 |
c = 2; |
702 |
/* SO bit, copied from XER */ |
703 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
704 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
705 |
cpu->cd.ppc.cr |= (c << bf_shift); |
706 |
} |
707 |
|
708 |
|
709 |
/* |
710 |
* cmplw: Compare Word, unsigned |
711 |
* |
712 |
* arg[0] = ptr to ra |
713 |
* arg[1] = ptr to rb |
714 |
* arg[2] = 28 - 4*bf |
715 |
*/ |
716 |
X(cmplw) |
717 |
{ |
718 |
uint32_t tmp = reg(ic->arg[0]), tmp2 = reg(ic->arg[1]); |
719 |
int bf_shift = ic->arg[2], c; |
720 |
if (tmp < tmp2) |
721 |
c = 8; |
722 |
else if (tmp > tmp2) |
723 |
c = 4; |
724 |
else |
725 |
c = 2; |
726 |
/* SO bit, copied from XER */ |
727 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
728 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
729 |
cpu->cd.ppc.cr |= (c << bf_shift); |
730 |
} |
731 |
|
732 |
|
733 |
/* |
734 |
* cmpwi: Compare Word immediate |
735 |
* |
736 |
* arg[0] = ptr to ra |
737 |
* arg[1] = int32_t imm |
738 |
* arg[2] = 28 - 4*bf |
739 |
*/ |
740 |
X(cmpwi) |
741 |
{ |
742 |
int32_t tmp = reg(ic->arg[0]), imm = ic->arg[1]; |
743 |
int bf_shift = ic->arg[2], c; |
744 |
if (tmp < imm) |
745 |
c = 8; |
746 |
else if (tmp > imm) |
747 |
c = 4; |
748 |
else |
749 |
c = 2; |
750 |
/* SO bit, copied from XER */ |
751 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
752 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
753 |
cpu->cd.ppc.cr |= (c << bf_shift); |
754 |
} |
755 |
|
756 |
|
757 |
/* |
758 |
* cmplwi: Compare Word immediate, logical |
759 |
* |
760 |
* arg[0] = ptr to ra |
761 |
* arg[1] = int32_t imm |
762 |
* arg[2] = 28 - 4*bf |
763 |
*/ |
764 |
X(cmplwi) |
765 |
{ |
766 |
uint32_t tmp = reg(ic->arg[0]), imm = ic->arg[1]; |
767 |
int bf_shift = ic->arg[2], c; |
768 |
if (tmp < imm) |
769 |
c = 8; |
770 |
else if (tmp > imm) |
771 |
c = 4; |
772 |
else |
773 |
c = 2; |
774 |
/* SO bit, copied from XER */ |
775 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
776 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
777 |
cpu->cd.ppc.cr |= (c << bf_shift); |
778 |
} |
779 |
|
780 |
|
781 |
/* |
782 |
* dcbz: Data-Cache Block Zero |
783 |
* |
784 |
* arg[0] = ptr to ra (or zero) |
785 |
* arg[1] = ptr to rb |
786 |
*/ |
787 |
X(dcbz) |
788 |
{ |
789 |
MODE_uint_t addr = reg(ic->arg[0]) + reg(ic->arg[1]); |
790 |
unsigned char cacheline[128]; |
791 |
int cacheline_size = 1 << cpu->cd.ppc.cpu_type.dlinesize; |
792 |
int cleared = 0; |
793 |
|
794 |
/* Synchronize the PC first: */ |
795 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[2]; |
796 |
|
797 |
addr &= ~(cacheline_size - 1); |
798 |
memset(cacheline, 0, sizeof(cacheline)); |
799 |
|
800 |
/* TODO: Don't use memory_rw() unless it is necessary. */ |
801 |
while (cleared < cacheline_size) { |
802 |
int to_clear = cacheline_size < sizeof(cacheline)? |
803 |
cacheline_size : sizeof(cacheline); |
804 |
if (cpu->memory_rw(cpu, cpu->mem, addr, cacheline, to_clear, |
805 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
806 |
/* exception */ |
807 |
return; |
808 |
} |
809 |
|
810 |
cleared += to_clear; |
811 |
addr += to_clear; |
812 |
} |
813 |
} |
814 |
|
815 |
|
816 |
/* |
817 |
* mtfsf: Copy FPR into the FPSCR. |
818 |
* |
819 |
* arg[0] = ptr to frb |
820 |
* arg[1] = mask |
821 |
*/ |
822 |
X(mtfsf) |
823 |
{ |
824 |
/* Sync. PC in case of an exception: */ |
825 |
uint64_t low_pc = ((size_t)ic - (size_t) |
826 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
827 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
828 |
+ (low_pc << 2); |
829 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
830 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
831 |
return; |
832 |
} |
833 |
|
834 |
cpu->cd.ppc.fpscr &= ~ic->arg[1]; |
835 |
cpu->cd.ppc.fpscr |= (ic->arg[1] & (*(uint64_t *)ic->arg[0])); |
836 |
} |
837 |
|
838 |
|
839 |
/* |
840 |
* mffs: Copy FPSCR into a FPR. |
841 |
* |
842 |
* arg[0] = ptr to frt |
843 |
*/ |
844 |
X(mffs) |
845 |
{ |
846 |
/* Sync. PC in case of an exception: */ |
847 |
uint64_t low_pc = ((size_t)ic - (size_t) |
848 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
849 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
850 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
851 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
852 |
return; |
853 |
} |
854 |
|
855 |
(*(uint64_t *)ic->arg[0]) = cpu->cd.ppc.fpscr; |
856 |
} |
857 |
|
858 |
|
859 |
/* |
860 |
* fmr: Floating-point Move |
861 |
* |
862 |
* arg[0] = ptr to frb |
863 |
* arg[1] = ptr to frt |
864 |
*/ |
865 |
X(fmr) |
866 |
{ |
867 |
/* Sync. PC in case of an exception: */ |
868 |
uint64_t low_pc = ((size_t)ic - (size_t) |
869 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
870 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
871 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
872 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
873 |
return; |
874 |
} |
875 |
|
876 |
*(uint64_t *)ic->arg[1] = *(uint64_t *)ic->arg[0]; |
877 |
} |
878 |
|
879 |
|
880 |
/* |
881 |
* fneg: Floating-point Negate |
882 |
* |
883 |
* arg[0] = ptr to frb |
884 |
* arg[1] = ptr to frt |
885 |
*/ |
886 |
X(fneg) |
887 |
{ |
888 |
uint64_t v; |
889 |
|
890 |
/* Sync. PC in case of an exception: */ |
891 |
uint64_t low_pc = ((size_t)ic - (size_t) |
892 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
893 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
894 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
895 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
896 |
return; |
897 |
} |
898 |
|
899 |
v = *(uint64_t *)ic->arg[0]; |
900 |
*(uint64_t *)ic->arg[1] = v ^ 0x8000000000000000ULL; |
901 |
} |
902 |
|
903 |
|
904 |
/* |
905 |
* fcmpu: Floating-point Compare Unordered |
906 |
* |
907 |
* arg[0] = 28 - 4*bf (bitfield shift) |
908 |
* arg[1] = ptr to fra |
909 |
* arg[2] = ptr to frb |
910 |
*/ |
911 |
X(fcmpu) |
912 |
{ |
913 |
struct ieee_float_value fra, frb; |
914 |
int bf_shift = ic->arg[0], c = 0; |
915 |
|
916 |
/* Sync. PC in case of an exception: */ |
917 |
uint64_t low_pc = ((size_t)ic - (size_t) |
918 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
919 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
920 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
921 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
922 |
return; |
923 |
} |
924 |
|
925 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
926 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[2], &frb, IEEE_FMT_D); |
927 |
if (fra.nan | frb.nan) { |
928 |
c = 1; |
929 |
} else { |
930 |
if (fra.f < frb.f) |
931 |
c = 8; |
932 |
else if (fra.f > frb.f) |
933 |
c = 4; |
934 |
else |
935 |
c = 2; |
936 |
} |
937 |
/* TODO: Signaling vs Quiet NaN */ |
938 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
939 |
cpu->cd.ppc.cr |= ((c&0xe) << bf_shift); |
940 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
941 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
942 |
} |
943 |
|
944 |
|
945 |
/* |
946 |
* frsp: Floating-point Round to Single Precision |
947 |
* |
948 |
* arg[0] = ptr to frb |
949 |
* arg[1] = ptr to frt |
950 |
*/ |
951 |
X(frsp) |
952 |
{ |
953 |
struct ieee_float_value frb; |
954 |
float fl = 0.0; |
955 |
int c = 0; |
956 |
|
957 |
/* Sync. PC in case of an exception: */ |
958 |
uint64_t low_pc = ((size_t)ic - (size_t) |
959 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
960 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
961 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
962 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
963 |
return; |
964 |
} |
965 |
|
966 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &frb, IEEE_FMT_D); |
967 |
if (frb.nan) { |
968 |
c = 1; |
969 |
} else { |
970 |
fl = frb.f; |
971 |
if (fl < 0.0) |
972 |
c = 8; |
973 |
else if (fl > 0.0) |
974 |
c = 4; |
975 |
else |
976 |
c = 2; |
977 |
} |
978 |
/* TODO: Signaling vs Quiet NaN */ |
979 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
980 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
981 |
(*(uint64_t *)ic->arg[1]) = |
982 |
ieee_store_float_value(fl, IEEE_FMT_D, frb.nan); |
983 |
} |
984 |
|
985 |
|
986 |
/* |
987 |
* fctiwz: Floating-point Convert to Integer Word, Round to Zero |
988 |
* |
989 |
* arg[0] = ptr to frb |
990 |
* arg[1] = ptr to frt |
991 |
*/ |
992 |
X(fctiwz) |
993 |
{ |
994 |
struct ieee_float_value frb; |
995 |
int32_t res = 0; |
996 |
|
997 |
/* Sync. PC in case of an exception: */ |
998 |
uint64_t low_pc = ((size_t)ic - (size_t) |
999 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1000 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
1001 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1002 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1003 |
return; |
1004 |
} |
1005 |
|
1006 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &frb, IEEE_FMT_D); |
1007 |
if (!frb.nan) { |
1008 |
if (frb.f >= 2147483647.0) |
1009 |
res = 0x7fffffff; |
1010 |
else if (frb.f <= -2147483648.0) |
1011 |
res = 0x80000000; |
1012 |
else |
1013 |
res = frb.f; |
1014 |
} |
1015 |
*(uint64_t *)ic->arg[1] = (uint32_t)res; |
1016 |
} |
1017 |
|
1018 |
|
1019 |
/* |
1020 |
* fmul: Floating-point Multiply |
1021 |
* |
1022 |
* arg[0] = ptr to frt |
1023 |
* arg[1] = ptr to fra |
1024 |
* arg[2] = ptr to frc |
1025 |
*/ |
1026 |
X(fmul) |
1027 |
{ |
1028 |
struct ieee_float_value fra; |
1029 |
struct ieee_float_value frc; |
1030 |
double result = 0.0; |
1031 |
int c, nan = 0; |
1032 |
|
1033 |
/* Sync. PC in case of an exception: */ |
1034 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1035 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1036 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
1037 |
+ (low_pc << 2); |
1038 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1039 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1040 |
return; |
1041 |
} |
1042 |
|
1043 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1044 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[2], &frc, IEEE_FMT_D); |
1045 |
if (fra.nan || frc.nan) |
1046 |
nan = 1; |
1047 |
else |
1048 |
result = fra.f * frc.f; |
1049 |
if (nan) |
1050 |
c = 1; |
1051 |
else { |
1052 |
if (result < 0.0) |
1053 |
c = 8; |
1054 |
else if (result > 0.0) |
1055 |
c = 4; |
1056 |
else |
1057 |
c = 2; |
1058 |
} |
1059 |
/* TODO: Signaling vs Quiet NaN */ |
1060 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1061 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1062 |
|
1063 |
(*(uint64_t *)ic->arg[0]) = |
1064 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1065 |
} |
1066 |
X(fmuls) |
1067 |
{ |
1068 |
/* TODO */ |
1069 |
instr(fmul)(cpu, ic); |
1070 |
} |
1071 |
|
1072 |
|
1073 |
/* |
1074 |
* fmadd: Floating-point Multiply and Add |
1075 |
* |
1076 |
* arg[0] = ptr to frt |
1077 |
* arg[1] = ptr to fra |
1078 |
* arg[2] = copy of the instruction word |
1079 |
*/ |
1080 |
X(fmadd) |
1081 |
{ |
1082 |
uint32_t iw = ic->arg[2]; |
1083 |
int b = (iw >> 11) & 31, c = (iw >> 6) & 31; |
1084 |
struct ieee_float_value fra; |
1085 |
struct ieee_float_value frb; |
1086 |
struct ieee_float_value frc; |
1087 |
double result = 0.0; |
1088 |
int nan = 0, cc; |
1089 |
|
1090 |
/* Sync. PC in case of an exception: */ |
1091 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1092 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1093 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
1094 |
+ (low_pc << 2); |
1095 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1096 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1097 |
return; |
1098 |
} |
1099 |
|
1100 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1101 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[b], &frb, IEEE_FMT_D); |
1102 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[c], &frc, IEEE_FMT_D); |
1103 |
if (fra.nan || frb.nan || frc.nan) |
1104 |
nan = 1; |
1105 |
else |
1106 |
result = fra.f * frc.f + frb.f; |
1107 |
if (nan) |
1108 |
cc = 1; |
1109 |
else { |
1110 |
if (result < 0.0) |
1111 |
cc = 8; |
1112 |
else if (result > 0.0) |
1113 |
cc = 4; |
1114 |
else |
1115 |
cc = 2; |
1116 |
} |
1117 |
/* TODO: Signaling vs Quiet NaN */ |
1118 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1119 |
cpu->cd.ppc.fpscr |= (cc << PPC_FPSCR_FPCC_SHIFT); |
1120 |
|
1121 |
(*(uint64_t *)ic->arg[0]) = |
1122 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1123 |
} |
1124 |
|
1125 |
|
1126 |
/* |
1127 |
* fmsub: Floating-point Multiply and Sub |
1128 |
* |
1129 |
* arg[0] = ptr to frt |
1130 |
* arg[1] = ptr to fra |
1131 |
* arg[2] = copy of the instruction word |
1132 |
*/ |
1133 |
X(fmsub) |
1134 |
{ |
1135 |
uint32_t iw = ic->arg[2]; |
1136 |
int b = (iw >> 11) & 31, c = (iw >> 6) & 31; |
1137 |
struct ieee_float_value fra; |
1138 |
struct ieee_float_value frb; |
1139 |
struct ieee_float_value frc; |
1140 |
double result = 0.0; |
1141 |
int nan = 0, cc; |
1142 |
|
1143 |
/* Sync. PC in case of an exception: */ |
1144 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1145 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1146 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
1147 |
+ (low_pc << 2); |
1148 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1149 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1150 |
return; |
1151 |
} |
1152 |
|
1153 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &fra, IEEE_FMT_D); |
1154 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[b], &frb, IEEE_FMT_D); |
1155 |
ieee_interpret_float_value(cpu->cd.ppc.fpr[c], &frc, IEEE_FMT_D); |
1156 |
if (fra.nan || frb.nan || frc.nan) |
1157 |
nan = 1; |
1158 |
else |
1159 |
result = fra.f * frc.f - frb.f; |
1160 |
if (nan) |
1161 |
cc = 1; |
1162 |
else { |
1163 |
if (result < 0.0) |
1164 |
cc = 8; |
1165 |
else if (result > 0.0) |
1166 |
cc = 4; |
1167 |
else |
1168 |
cc = 2; |
1169 |
} |
1170 |
/* TODO: Signaling vs Quiet NaN */ |
1171 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1172 |
cpu->cd.ppc.fpscr |= (cc << PPC_FPSCR_FPCC_SHIFT); |
1173 |
|
1174 |
(*(uint64_t *)ic->arg[0]) = |
1175 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1176 |
} |
1177 |
|
1178 |
|
1179 |
/* |
1180 |
* fadd, fsub, fdiv: Various Floating-point operationgs |
1181 |
* |
1182 |
* arg[0] = ptr to fra |
1183 |
* arg[1] = ptr to frb |
1184 |
* arg[2] = ptr to frt |
1185 |
*/ |
1186 |
X(fadd) |
1187 |
{ |
1188 |
struct ieee_float_value fra; |
1189 |
struct ieee_float_value frb; |
1190 |
double result = 0.0; |
1191 |
int nan = 0, c; |
1192 |
|
1193 |
/* Sync. PC in case of an exception: */ |
1194 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1195 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1196 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
1197 |
+ (low_pc << 2); |
1198 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1199 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1200 |
return; |
1201 |
} |
1202 |
|
1203 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1204 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1205 |
if (fra.nan || frb.nan) |
1206 |
nan = 1; |
1207 |
else |
1208 |
result = fra.f + frb.f; |
1209 |
if (nan) |
1210 |
c = 1; |
1211 |
else { |
1212 |
if (result < 0.0) |
1213 |
c = 8; |
1214 |
else if (result > 0.0) |
1215 |
c = 4; |
1216 |
else |
1217 |
c = 2; |
1218 |
} |
1219 |
/* TODO: Signaling vs Quiet NaN */ |
1220 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1221 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1222 |
|
1223 |
(*(uint64_t *)ic->arg[2]) = |
1224 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1225 |
} |
1226 |
X(fadds) |
1227 |
{ |
1228 |
/* TODO */ |
1229 |
instr(fadd)(cpu, ic); |
1230 |
} |
1231 |
X(fsub) |
1232 |
{ |
1233 |
struct ieee_float_value fra; |
1234 |
struct ieee_float_value frb; |
1235 |
double result = 0.0; |
1236 |
int nan = 0, c; |
1237 |
|
1238 |
/* Sync. PC in case of an exception: */ |
1239 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1240 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1241 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
1242 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1243 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1244 |
return; |
1245 |
} |
1246 |
|
1247 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1248 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1249 |
if (fra.nan || frb.nan) |
1250 |
nan = 1; |
1251 |
else |
1252 |
result = fra.f - frb.f; |
1253 |
if (nan) |
1254 |
c = 1; |
1255 |
else { |
1256 |
if (result < 0.0) |
1257 |
c = 8; |
1258 |
else if (result > 0.0) |
1259 |
c = 4; |
1260 |
else |
1261 |
c = 2; |
1262 |
} |
1263 |
/* TODO: Signaling vs Quiet NaN */ |
1264 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1265 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1266 |
|
1267 |
(*(uint64_t *)ic->arg[2]) = |
1268 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1269 |
} |
1270 |
X(fsubs) |
1271 |
{ |
1272 |
/* TODO */ |
1273 |
instr(fsub)(cpu, ic); |
1274 |
} |
1275 |
X(fdiv) |
1276 |
{ |
1277 |
struct ieee_float_value fra; |
1278 |
struct ieee_float_value frb; |
1279 |
double result = 0.0; |
1280 |
int nan = 0, c; |
1281 |
|
1282 |
/* Sync. PC in case of an exception: */ |
1283 |
uint64_t low_pc = ((size_t)ic - (size_t) |
1284 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
1285 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
1286 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
1287 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
1288 |
return; |
1289 |
} |
1290 |
|
1291 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], &fra, IEEE_FMT_D); |
1292 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[1], &frb, IEEE_FMT_D); |
1293 |
if (fra.nan || frb.nan || frb.f == 0) |
1294 |
nan = 1; |
1295 |
else |
1296 |
result = fra.f / frb.f; |
1297 |
if (nan) |
1298 |
c = 1; |
1299 |
else { |
1300 |
if (result < 0.0) |
1301 |
c = 8; |
1302 |
else if (result > 0.0) |
1303 |
c = 4; |
1304 |
else |
1305 |
c = 2; |
1306 |
} |
1307 |
/* TODO: Signaling vs Quiet NaN */ |
1308 |
cpu->cd.ppc.fpscr &= ~(PPC_FPSCR_FPCC | PPC_FPSCR_VXNAN); |
1309 |
cpu->cd.ppc.fpscr |= (c << PPC_FPSCR_FPCC_SHIFT); |
1310 |
|
1311 |
(*(uint64_t *)ic->arg[2]) = |
1312 |
ieee_store_float_value(result, IEEE_FMT_D, nan); |
1313 |
} |
1314 |
X(fdivs) |
1315 |
{ |
1316 |
/* TODO */ |
1317 |
instr(fdiv)(cpu, ic); |
1318 |
} |
1319 |
|
1320 |
|
1321 |
/* |
1322 |
* llsc: Load-linked and store conditional |
1323 |
* |
1324 |
* arg[0] = copy of the instruction word. |
1325 |
*/ |
1326 |
X(llsc) |
1327 |
{ |
1328 |
int iw = ic->arg[0], len = 4, load = 0, xo = (iw >> 1) & 1023; |
1329 |
int i, rc = iw & 1, rt, ra, rb; |
1330 |
uint64_t addr = 0, value; |
1331 |
unsigned char d[8]; |
1332 |
|
1333 |
switch (xo) { |
1334 |
case PPC_31_LDARX: |
1335 |
len = 8; |
1336 |
case PPC_31_LWARX: |
1337 |
load = 1; |
1338 |
break; |
1339 |
case PPC_31_STDCX_DOT: |
1340 |
len = 8; |
1341 |
case PPC_31_STWCX_DOT: |
1342 |
break; |
1343 |
} |
1344 |
|
1345 |
rt = (iw >> 21) & 31; |
1346 |
ra = (iw >> 16) & 31; |
1347 |
rb = (iw >> 11) & 31; |
1348 |
|
1349 |
if (ra != 0) |
1350 |
addr = cpu->cd.ppc.gpr[ra]; |
1351 |
addr += cpu->cd.ppc.gpr[rb]; |
1352 |
|
1353 |
if (load) { |
1354 |
if (rc) { |
1355 |
fatal("ll: rc-bit set?\n"); |
1356 |
exit(1); |
1357 |
} |
1358 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, len, |
1359 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1360 |
fatal("ll: error: TODO\n"); |
1361 |
exit(1); |
1362 |
} |
1363 |
|
1364 |
value = 0; |
1365 |
for (i=0; i<len; i++) { |
1366 |
value <<= 8; |
1367 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1368 |
value |= d[i]; |
1369 |
else |
1370 |
value |= d[len - 1 - i]; |
1371 |
} |
1372 |
|
1373 |
cpu->cd.ppc.gpr[rt] = value; |
1374 |
cpu->cd.ppc.ll_addr = addr; |
1375 |
cpu->cd.ppc.ll_bit = 1; |
1376 |
} else { |
1377 |
uint32_t old_so = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_SO; |
1378 |
if (!rc) { |
1379 |
fatal("sc: rc-bit not set?\n"); |
1380 |
exit(1); |
1381 |
} |
1382 |
|
1383 |
value = cpu->cd.ppc.gpr[rt]; |
1384 |
|
1385 |
/* "If the store is performed, bits 0-2 of Condition |
1386 |
Register Field 0 are set to 0b001, otherwise, they are |
1387 |
set to 0b000. The SO bit of the XER is copied to to bit |
1388 |
4 of Condition Register Field 0. */ |
1389 |
if (!cpu->cd.ppc.ll_bit || cpu->cd.ppc.ll_addr != addr) { |
1390 |
cpu->cd.ppc.cr &= 0x0fffffff; |
1391 |
if (old_so) |
1392 |
cpu->cd.ppc.cr |= 0x10000000; |
1393 |
cpu->cd.ppc.ll_bit = 0; |
1394 |
return; |
1395 |
} |
1396 |
|
1397 |
for (i=0; i<len; i++) { |
1398 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1399 |
d[len - 1 - i] = value >> (8*i); |
1400 |
else |
1401 |
d[i] = value >> (8*i); |
1402 |
} |
1403 |
|
1404 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, len, |
1405 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1406 |
fatal("sc: error: TODO\n"); |
1407 |
exit(1); |
1408 |
} |
1409 |
|
1410 |
cpu->cd.ppc.cr &= 0x0fffffff; |
1411 |
cpu->cd.ppc.cr |= 0x20000000; /* success! */ |
1412 |
if (old_so) |
1413 |
cpu->cd.ppc.cr |= 0x10000000; |
1414 |
|
1415 |
/* Clear _all_ CPUs' ll_bits: */ |
1416 |
for (i=0; i<cpu->machine->ncpus; i++) |
1417 |
cpu->machine->cpus[i]->cd.ppc.ll_bit = 0; |
1418 |
} |
1419 |
} |
1420 |
|
1421 |
|
1422 |
/* |
1423 |
* mtsr: Move To Segment Register |
1424 |
* |
1425 |
* arg[0] = sr number, or for indirect mode: ptr to rb |
1426 |
* arg[1] = ptr to rt |
1427 |
*/ |
1428 |
X(mtsr) |
1429 |
{ |
1430 |
/* TODO: This only works for 32-bit mode */ |
1431 |
cpu->cd.ppc.sr[ic->arg[0]] = reg(ic->arg[1]); |
1432 |
|
1433 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
1434 |
} |
1435 |
X(mtsrin) |
1436 |
{ |
1437 |
/* TODO: This only works for 32-bit mode */ |
1438 |
uint32_t sr_num = reg(ic->arg[0]) >> 28; |
1439 |
cpu->cd.ppc.sr[sr_num] = reg(ic->arg[1]); |
1440 |
|
1441 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
1442 |
} |
1443 |
|
1444 |
|
1445 |
/* |
1446 |
* mfsrin, mtsrin: Move From/To Segment Register Indirect |
1447 |
* |
1448 |
* arg[0] = sr number, or for indirect mode: ptr to rb |
1449 |
* arg[1] = ptr to rt |
1450 |
*/ |
1451 |
X(mfsr) |
1452 |
{ |
1453 |
/* TODO: This only works for 32-bit mode */ |
1454 |
reg(ic->arg[1]) = cpu->cd.ppc.sr[ic->arg[0]]; |
1455 |
} |
1456 |
X(mfsrin) |
1457 |
{ |
1458 |
/* TODO: This only works for 32-bit mode */ |
1459 |
uint32_t sr_num = reg(ic->arg[0]) >> 28; |
1460 |
reg(ic->arg[1]) = cpu->cd.ppc.sr[sr_num]; |
1461 |
} |
1462 |
|
1463 |
|
1464 |
/* |
1465 |
* rldicr: |
1466 |
* |
1467 |
* arg[0] = copy of the instruction word |
1468 |
*/ |
1469 |
X(rldicr) |
1470 |
{ |
1471 |
int rs = (ic->arg[0] >> 21) & 31; |
1472 |
int ra = (ic->arg[0] >> 16) & 31; |
1473 |
int sh = ((ic->arg[0] >> 11) & 31) | ((ic->arg[0] & 2) << 4); |
1474 |
int me = ((ic->arg[0] >> 6) & 31) | (ic->arg[0] & 0x20); |
1475 |
int rc = ic->arg[0] & 1; |
1476 |
uint64_t tmp = cpu->cd.ppc.gpr[rs]; |
1477 |
/* TODO: Fix this, its performance is awful: */ |
1478 |
while (sh-- != 0) { |
1479 |
int b = (tmp >> 63) & 1; |
1480 |
tmp = (tmp << 1) | b; |
1481 |
} |
1482 |
while (me++ < 63) |
1483 |
tmp &= ~((uint64_t)1 << (63-me)); |
1484 |
cpu->cd.ppc.gpr[ra] = tmp; |
1485 |
if (rc) |
1486 |
update_cr0(cpu, tmp); |
1487 |
} |
1488 |
|
1489 |
|
1490 |
/* |
1491 |
* rlwnm: |
1492 |
* |
1493 |
* arg[0] = ptr to ra |
1494 |
* arg[1] = mask |
1495 |
* arg[2] = copy of the instruction word |
1496 |
*/ |
1497 |
X(rlwnm) |
1498 |
{ |
1499 |
uint32_t tmp, iword = ic->arg[2]; |
1500 |
int rs = (iword >> 21) & 31; |
1501 |
int rb = (iword >> 11) & 31; |
1502 |
int sh = cpu->cd.ppc.gpr[rb] & 0x1f; |
1503 |
tmp = (uint32_t)cpu->cd.ppc.gpr[rs]; |
1504 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1505 |
tmp &= (uint32_t)ic->arg[1]; |
1506 |
reg(ic->arg[0]) = tmp; |
1507 |
} |
1508 |
DOT0(rlwnm) |
1509 |
|
1510 |
|
1511 |
/* |
1512 |
* rlwinm: |
1513 |
* |
1514 |
* arg[0] = ptr to ra |
1515 |
* arg[1] = mask |
1516 |
* arg[2] = copy of the instruction word |
1517 |
*/ |
1518 |
X(rlwinm) |
1519 |
{ |
1520 |
uint32_t tmp, iword = ic->arg[2]; |
1521 |
int rs = (iword >> 21) & 31; |
1522 |
int sh = (iword >> 11) & 31; |
1523 |
tmp = (uint32_t)cpu->cd.ppc.gpr[rs]; |
1524 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1525 |
tmp &= (uint32_t)ic->arg[1]; |
1526 |
reg(ic->arg[0]) = tmp; |
1527 |
} |
1528 |
DOT0(rlwinm) |
1529 |
|
1530 |
|
1531 |
/* |
1532 |
* rlwimi: |
1533 |
* |
1534 |
* arg[0] = ptr to rs |
1535 |
* arg[1] = ptr to ra |
1536 |
* arg[2] = copy of the instruction word |
1537 |
*/ |
1538 |
X(rlwimi) |
1539 |
{ |
1540 |
MODE_uint_t tmp = reg(ic->arg[0]), ra = reg(ic->arg[1]); |
1541 |
uint32_t iword = ic->arg[2]; |
1542 |
int sh = (iword >> 11) & 31; |
1543 |
int mb = (iword >> 6) & 31; |
1544 |
int me = (iword >> 1) & 31; |
1545 |
int rc = iword & 1; |
1546 |
|
1547 |
tmp = (tmp << sh) | (tmp >> (32-sh)); |
1548 |
|
1549 |
for (;;) { |
1550 |
uint64_t mask; |
1551 |
mask = (uint64_t)1 << (31-mb); |
1552 |
ra &= ~mask; |
1553 |
ra |= (tmp & mask); |
1554 |
if (mb == me) |
1555 |
break; |
1556 |
mb ++; |
1557 |
if (mb == 32) |
1558 |
mb = 0; |
1559 |
} |
1560 |
reg(ic->arg[1]) = ra; |
1561 |
if (rc) |
1562 |
update_cr0(cpu, ra); |
1563 |
} |
1564 |
|
1565 |
|
1566 |
/* |
1567 |
* srawi: |
1568 |
* |
1569 |
* arg[0] = ptr to rs |
1570 |
* arg[1] = ptr to ra |
1571 |
* arg[2] = sh (shift amount) |
1572 |
*/ |
1573 |
X(srawi) |
1574 |
{ |
1575 |
uint32_t tmp = reg(ic->arg[0]); |
1576 |
int i = 0, j = 0, sh = ic->arg[2]; |
1577 |
|
1578 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
1579 |
if (tmp & 0x80000000) |
1580 |
i = 1; |
1581 |
while (sh-- > 0) { |
1582 |
if (tmp & 1) |
1583 |
j ++; |
1584 |
tmp >>= 1; |
1585 |
if (tmp & 0x40000000) |
1586 |
tmp |= 0x80000000; |
1587 |
} |
1588 |
if (i && j>0) |
1589 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
1590 |
reg(ic->arg[1]) = (int64_t)(int32_t)tmp; |
1591 |
} |
1592 |
DOT1(srawi) |
1593 |
|
1594 |
|
1595 |
/* |
1596 |
* mcrf: Move inside condition register |
1597 |
* |
1598 |
* arg[0] = 28-4*bf, arg[1] = 28-4*bfa |
1599 |
*/ |
1600 |
X(mcrf) |
1601 |
{ |
1602 |
int bf_shift = ic->arg[0], bfa_shift = ic->arg[1]; |
1603 |
uint32_t tmp = (cpu->cd.ppc.cr >> bfa_shift) & 0xf; |
1604 |
cpu->cd.ppc.cr &= ~(0xf << bf_shift); |
1605 |
cpu->cd.ppc.cr |= (tmp << bf_shift); |
1606 |
} |
1607 |
|
1608 |
|
1609 |
/* |
1610 |
* crand, crxor etc: Condition Register operations |
1611 |
* |
1612 |
* arg[0] = copy of the instruction word |
1613 |
*/ |
1614 |
X(crand) { |
1615 |
uint32_t iword = ic->arg[0]; int bt = (iword >> 21) & 31; |
1616 |
int ba = (iword >> 16) & 31, bb = (iword >> 11) & 31; |
1617 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
1618 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
1619 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
1620 |
if (ba & bb) |
1621 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
1622 |
} |
1623 |
X(crandc) { |
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(creqv) { |
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(cror) { |
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(crnor) { |
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(crxor) { |
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 |
|
1669 |
|
1670 |
/* |
1671 |
* mfspr: Move from SPR |
1672 |
* |
1673 |
* arg[0] = pointer to destination register |
1674 |
* arg[1] = pointer to source SPR |
1675 |
*/ |
1676 |
X(mfspr) { |
1677 |
reg(ic->arg[0]) = reg(ic->arg[1]); |
1678 |
} |
1679 |
X(mfspr_pmc1) { |
1680 |
/* |
1681 |
* TODO: This is a temporary hack to make NetBSD/ppc detect |
1682 |
* a CPU of the correct (emulated) speed. |
1683 |
*/ |
1684 |
reg(ic->arg[0]) = cpu->machine->emulated_hz / 10; |
1685 |
} |
1686 |
X(mftb) { |
1687 |
/* NOTE/TODO: This increments the time base (slowly) if it |
1688 |
is being polled. */ |
1689 |
if (++cpu->cd.ppc.spr[SPR_TBL] == 0) |
1690 |
cpu->cd.ppc.spr[SPR_TBU] ++; |
1691 |
reg(ic->arg[0]) = cpu->cd.ppc.spr[SPR_TBL]; |
1692 |
} |
1693 |
X(mftbu) { |
1694 |
reg(ic->arg[0]) = cpu->cd.ppc.spr[SPR_TBU]; |
1695 |
} |
1696 |
|
1697 |
|
1698 |
/* |
1699 |
* mtspr: Move to SPR. |
1700 |
* |
1701 |
* arg[0] = pointer to source register |
1702 |
* arg[1] = pointer to the SPR |
1703 |
*/ |
1704 |
X(mtspr) { |
1705 |
reg(ic->arg[1]) = reg(ic->arg[0]); |
1706 |
} |
1707 |
|
1708 |
|
1709 |
/* |
1710 |
* rfi: Return from Interrupt |
1711 |
*/ |
1712 |
X(rfi) |
1713 |
{ |
1714 |
uint64_t tmp; |
1715 |
|
1716 |
reg_access_msr(cpu, &tmp, 0, 0); |
1717 |
tmp &= ~0xffff; |
1718 |
tmp |= (cpu->cd.ppc.spr[SPR_SRR1] & 0xffff); |
1719 |
reg_access_msr(cpu, &tmp, 1, 0); |
1720 |
|
1721 |
cpu->pc = cpu->cd.ppc.spr[SPR_SRR0]; |
1722 |
DYNTRANS_PC_TO_POINTERS(cpu); |
1723 |
} |
1724 |
|
1725 |
|
1726 |
/* |
1727 |
* mfcr: Move From Condition Register |
1728 |
* |
1729 |
* arg[0] = pointer to destination register |
1730 |
*/ |
1731 |
X(mfcr) |
1732 |
{ |
1733 |
reg(ic->arg[0]) = cpu->cd.ppc.cr; |
1734 |
} |
1735 |
|
1736 |
|
1737 |
/* |
1738 |
* mfmsr: Move From MSR |
1739 |
* |
1740 |
* arg[0] = pointer to destination register |
1741 |
*/ |
1742 |
X(mfmsr) |
1743 |
{ |
1744 |
reg_access_msr(cpu, (uint64_t*)ic->arg[0], 0, 0); |
1745 |
} |
1746 |
|
1747 |
|
1748 |
/* |
1749 |
* mtmsr: Move To MSR |
1750 |
* |
1751 |
* arg[0] = pointer to source register |
1752 |
*/ |
1753 |
X(mtmsr) |
1754 |
{ |
1755 |
/* Synchronize the PC (pointing to _after_ this instruction) */ |
1756 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[1]; |
1757 |
|
1758 |
reg_access_msr(cpu, (uint64_t*)ic->arg[0], 1, 1); |
1759 |
} |
1760 |
|
1761 |
|
1762 |
/* |
1763 |
* mtcrf: Move To Condition Register Fields |
1764 |
* |
1765 |
* arg[0] = pointer to source register |
1766 |
*/ |
1767 |
X(mtcrf) |
1768 |
{ |
1769 |
cpu->cd.ppc.cr &= ~ic->arg[1]; |
1770 |
cpu->cd.ppc.cr |= (reg(ic->arg[0]) & ic->arg[1]); |
1771 |
} |
1772 |
|
1773 |
|
1774 |
/* |
1775 |
* mulli: Multiply Low Immediate. |
1776 |
* |
1777 |
* arg[0] = pointer to source register ra |
1778 |
* arg[1] = int32_t immediate |
1779 |
* arg[2] = pointer to destination register rt |
1780 |
*/ |
1781 |
X(mulli) |
1782 |
{ |
1783 |
reg(ic->arg[2]) = (uint32_t)(reg(ic->arg[0]) * (int32_t)ic->arg[1]); |
1784 |
} |
1785 |
|
1786 |
|
1787 |
/* |
1788 |
* Load/Store Multiple: |
1789 |
* |
1790 |
* arg[0] = rs (or rt for loads) NOTE: not a pointer |
1791 |
* arg[1] = ptr to ra |
1792 |
* arg[2] = int32_t immediate offset |
1793 |
*/ |
1794 |
X(lmw) { |
1795 |
MODE_uint_t addr = reg(ic->arg[1]) + (int32_t)ic->arg[2]; |
1796 |
unsigned char d[4]; |
1797 |
int rs = ic->arg[0]; |
1798 |
|
1799 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1800 |
/ sizeof(struct ppc_instr_call); |
1801 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1802 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1803 |
cpu->pc |= (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1804 |
|
1805 |
while (rs <= 31) { |
1806 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), |
1807 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1808 |
/* exception */ |
1809 |
return; |
1810 |
} |
1811 |
|
1812 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
1813 |
cpu->cd.ppc.gpr[rs] = (d[0] << 24) + (d[1] << 16) |
1814 |
+ (d[2] << 8) + d[3]; |
1815 |
else |
1816 |
cpu->cd.ppc.gpr[rs] = (d[3] << 24) + (d[2] << 16) |
1817 |
+ (d[1] << 8) + d[0]; |
1818 |
|
1819 |
rs ++; |
1820 |
addr += sizeof(uint32_t); |
1821 |
} |
1822 |
} |
1823 |
X(stmw) { |
1824 |
MODE_uint_t addr = reg(ic->arg[1]) + (int32_t)ic->arg[2]; |
1825 |
unsigned char d[4]; |
1826 |
int rs = ic->arg[0]; |
1827 |
|
1828 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1829 |
/ sizeof(struct ppc_instr_call); |
1830 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1831 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1832 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1833 |
|
1834 |
while (rs <= 31) { |
1835 |
uint32_t tmp = cpu->cd.ppc.gpr[rs]; |
1836 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
1837 |
d[3] = tmp; d[2] = tmp >> 8; |
1838 |
d[1] = tmp >> 16; d[0] = tmp >> 24; |
1839 |
} else { |
1840 |
d[0] = tmp; d[1] = tmp >> 8; |
1841 |
d[2] = tmp >> 16; d[3] = tmp >> 24; |
1842 |
} |
1843 |
if (cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), |
1844 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1845 |
/* exception */ |
1846 |
return; |
1847 |
} |
1848 |
|
1849 |
rs ++; |
1850 |
addr += sizeof(uint32_t); |
1851 |
} |
1852 |
} |
1853 |
|
1854 |
|
1855 |
/* |
1856 |
* Load/store string: |
1857 |
* |
1858 |
* arg[0] = rs (well, rt for lswi) |
1859 |
* arg[1] = ptr to ra (or ptr to zero) |
1860 |
* arg[2] = nb |
1861 |
*/ |
1862 |
X(lswi) |
1863 |
{ |
1864 |
MODE_uint_t addr = reg(ic->arg[1]); |
1865 |
int rt = ic->arg[0], nb = ic->arg[2]; |
1866 |
int sub = 0; |
1867 |
|
1868 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1869 |
/ sizeof(struct ppc_instr_call); |
1870 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1871 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1872 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1873 |
|
1874 |
while (nb > 0) { |
1875 |
unsigned char d; |
1876 |
if (cpu->memory_rw(cpu, cpu->mem, addr, &d, 1, |
1877 |
MEM_READ, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1878 |
/* exception */ |
1879 |
return; |
1880 |
} |
1881 |
|
1882 |
if (cpu->cd.ppc.mode == MODE_POWER && sub == 0) |
1883 |
cpu->cd.ppc.gpr[rt] = 0; |
1884 |
cpu->cd.ppc.gpr[rt] &= ~(0xff << (24-8*sub)); |
1885 |
cpu->cd.ppc.gpr[rt] |= (d << (24-8*sub)); |
1886 |
sub ++; |
1887 |
if (sub == 4) { |
1888 |
rt = (rt + 1) & 31; |
1889 |
sub = 0; |
1890 |
} |
1891 |
addr ++; |
1892 |
nb --; |
1893 |
} |
1894 |
} |
1895 |
X(stswi) |
1896 |
{ |
1897 |
MODE_uint_t addr = reg(ic->arg[1]); |
1898 |
int rs = ic->arg[0], nb = ic->arg[2]; |
1899 |
uint32_t cur = cpu->cd.ppc.gpr[rs]; |
1900 |
int sub = 0; |
1901 |
|
1902 |
int low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
1903 |
/ sizeof(struct ppc_instr_call); |
1904 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) |
1905 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
1906 |
cpu->pc += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
1907 |
|
1908 |
while (nb > 0) { |
1909 |
unsigned char d = cur >> 24; |
1910 |
if (cpu->memory_rw(cpu, cpu->mem, addr, &d, 1, |
1911 |
MEM_WRITE, CACHE_DATA) != MEMORY_ACCESS_OK) { |
1912 |
/* exception */ |
1913 |
return; |
1914 |
} |
1915 |
cur <<= 8; |
1916 |
sub ++; |
1917 |
if (sub == 4) { |
1918 |
rs = (rs + 1) & 31; |
1919 |
sub = 0; |
1920 |
cur = cpu->cd.ppc.gpr[rs]; |
1921 |
} |
1922 |
addr ++; |
1923 |
nb --; |
1924 |
} |
1925 |
} |
1926 |
|
1927 |
|
1928 |
/* |
1929 |
* Shifts, and, or, xor, etc. |
1930 |
* |
1931 |
* arg[0] = pointer to source register rs |
1932 |
* arg[1] = pointer to source register rb |
1933 |
* arg[2] = pointer to destination register ra |
1934 |
*/ |
1935 |
X(extsb) { |
1936 |
#ifdef MODE32 |
1937 |
reg(ic->arg[2]) = (int32_t)(int8_t)reg(ic->arg[0]); |
1938 |
#else |
1939 |
reg(ic->arg[2]) = (int64_t)(int8_t)reg(ic->arg[0]); |
1940 |
#endif |
1941 |
} |
1942 |
DOT2(extsb) |
1943 |
X(extsh) { |
1944 |
#ifdef MODE32 |
1945 |
reg(ic->arg[2]) = (int32_t)(int16_t)reg(ic->arg[0]); |
1946 |
#else |
1947 |
reg(ic->arg[2]) = (int64_t)(int16_t)reg(ic->arg[0]); |
1948 |
#endif |
1949 |
} |
1950 |
DOT2(extsh) |
1951 |
X(extsw) { |
1952 |
#ifdef MODE32 |
1953 |
fatal("TODO: extsw: invalid instruction\n"); exit(1); |
1954 |
#else |
1955 |
reg(ic->arg[2]) = (int64_t)(int32_t)reg(ic->arg[0]); |
1956 |
#endif |
1957 |
} |
1958 |
DOT2(extsw) |
1959 |
X(slw) { reg(ic->arg[2]) = (uint64_t)reg(ic->arg[0]) |
1960 |
<< (reg(ic->arg[1]) & 31); } |
1961 |
DOT2(slw) |
1962 |
X(sraw) |
1963 |
{ |
1964 |
uint32_t tmp = reg(ic->arg[0]); |
1965 |
int i = 0, j = 0, sh = reg(ic->arg[1]) & 31; |
1966 |
|
1967 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
1968 |
if (tmp & 0x80000000) |
1969 |
i = 1; |
1970 |
while (sh-- > 0) { |
1971 |
if (tmp & 1) |
1972 |
j ++; |
1973 |
tmp >>= 1; |
1974 |
if (tmp & 0x40000000) |
1975 |
tmp |= 0x80000000; |
1976 |
} |
1977 |
if (i && j>0) |
1978 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
1979 |
reg(ic->arg[2]) = (int64_t)(int32_t)tmp; |
1980 |
} |
1981 |
DOT2(sraw) |
1982 |
X(srw) { reg(ic->arg[2]) = (uint64_t)reg(ic->arg[0]) |
1983 |
>> (reg(ic->arg[1]) & 31); } |
1984 |
DOT2(srw) |
1985 |
X(and) { reg(ic->arg[2]) = reg(ic->arg[0]) & reg(ic->arg[1]); } |
1986 |
DOT2(and) |
1987 |
X(nand) { reg(ic->arg[2]) = ~(reg(ic->arg[0]) & reg(ic->arg[1])); } |
1988 |
DOT2(nand) |
1989 |
X(andc) { reg(ic->arg[2]) = reg(ic->arg[0]) & (~reg(ic->arg[1])); } |
1990 |
DOT2(andc) |
1991 |
X(nor) { reg(ic->arg[2]) = ~(reg(ic->arg[0]) | reg(ic->arg[1])); } |
1992 |
DOT2(nor) |
1993 |
X(or) { reg(ic->arg[2]) = reg(ic->arg[0]) | reg(ic->arg[1]); } |
1994 |
DOT2(or) |
1995 |
X(orc) { reg(ic->arg[2]) = reg(ic->arg[0]) | (~reg(ic->arg[1])); } |
1996 |
DOT2(orc) |
1997 |
X(xor) { reg(ic->arg[2]) = reg(ic->arg[0]) ^ reg(ic->arg[1]); } |
1998 |
DOT2(xor) |
1999 |
|
2000 |
|
2001 |
/* |
2002 |
* neg: |
2003 |
* |
2004 |
* arg[0] = pointer to source register ra |
2005 |
* arg[1] = pointer to destination register rt |
2006 |
*/ |
2007 |
X(neg) { reg(ic->arg[1]) = -reg(ic->arg[0]); } |
2008 |
DOT1(neg) |
2009 |
|
2010 |
|
2011 |
/* |
2012 |
* mullw, mulhw[u], divw[u]: |
2013 |
* |
2014 |
* arg[0] = pointer to source register ra |
2015 |
* arg[1] = pointer to source register rb |
2016 |
* arg[2] = pointer to destination register rt |
2017 |
*/ |
2018 |
X(mullw) |
2019 |
{ |
2020 |
int32_t sum = (int32_t)reg(ic->arg[0]) * (int32_t)reg(ic->arg[1]); |
2021 |
reg(ic->arg[2]) = (int32_t)sum; |
2022 |
} |
2023 |
DOT2(mullw) |
2024 |
X(mulhw) |
2025 |
{ |
2026 |
int64_t sum; |
2027 |
sum = (int64_t)(int32_t)reg(ic->arg[0]) |
2028 |
* (int64_t)(int32_t)reg(ic->arg[1]); |
2029 |
reg(ic->arg[2]) = sum >> 32; |
2030 |
} |
2031 |
DOT2(mulhw) |
2032 |
X(mulhwu) |
2033 |
{ |
2034 |
uint64_t sum; |
2035 |
sum = (uint64_t)(uint32_t)reg(ic->arg[0]) |
2036 |
* (uint64_t)(uint32_t)reg(ic->arg[1]); |
2037 |
reg(ic->arg[2]) = sum >> 32; |
2038 |
} |
2039 |
DOT2(mulhwu) |
2040 |
X(divw) |
2041 |
{ |
2042 |
int32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]); |
2043 |
int32_t sum; |
2044 |
if (b == 0) |
2045 |
sum = 0; |
2046 |
else |
2047 |
sum = a / b; |
2048 |
reg(ic->arg[2]) = (uint32_t)sum; |
2049 |
} |
2050 |
DOT2(divw) |
2051 |
X(divwu) |
2052 |
{ |
2053 |
uint32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]); |
2054 |
uint32_t sum; |
2055 |
if (b == 0) |
2056 |
sum = 0; |
2057 |
else |
2058 |
sum = a / b; |
2059 |
reg(ic->arg[2]) = sum; |
2060 |
} |
2061 |
DOT2(divwu) |
2062 |
|
2063 |
|
2064 |
/* |
2065 |
* add: Add. |
2066 |
* |
2067 |
* arg[0] = pointer to source register ra |
2068 |
* arg[1] = pointer to source register rb |
2069 |
* arg[2] = pointer to destination register rt |
2070 |
*/ |
2071 |
X(add) { reg(ic->arg[2]) = reg(ic->arg[0]) + reg(ic->arg[1]); } |
2072 |
DOT2(add) |
2073 |
|
2074 |
|
2075 |
/* |
2076 |
* addc: Add carrying. |
2077 |
* |
2078 |
* arg[0] = pointer to source register ra |
2079 |
* arg[1] = pointer to source register rb |
2080 |
* arg[2] = pointer to destination register rt |
2081 |
*/ |
2082 |
X(addc) |
2083 |
{ |
2084 |
/* TODO: this only works in 32-bit mode */ |
2085 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2086 |
uint64_t tmp2 = tmp; |
2087 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2088 |
tmp += (uint32_t)reg(ic->arg[1]); |
2089 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2090 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2091 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2092 |
} |
2093 |
|
2094 |
|
2095 |
/* |
2096 |
* adde: Add extended, etc. |
2097 |
* |
2098 |
* arg[0] = pointer to source register ra |
2099 |
* arg[1] = pointer to source register rb |
2100 |
* arg[2] = pointer to destination register rt |
2101 |
*/ |
2102 |
X(adde) |
2103 |
{ |
2104 |
/* TODO: this only works in 32-bit mode */ |
2105 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2106 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2107 |
uint64_t tmp2 = tmp; |
2108 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2109 |
tmp += (uint32_t)reg(ic->arg[1]); |
2110 |
if (old_ca) |
2111 |
tmp ++; |
2112 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2113 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2114 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2115 |
} |
2116 |
DOT2(adde) |
2117 |
X(addme) |
2118 |
{ |
2119 |
/* TODO: this only works in 32-bit mode */ |
2120 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2121 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2122 |
uint64_t tmp2 = tmp; |
2123 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2124 |
if (old_ca) |
2125 |
tmp ++; |
2126 |
tmp += 0xffffffffULL; |
2127 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2128 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2129 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2130 |
} |
2131 |
DOT2(addme) |
2132 |
X(addze) |
2133 |
{ |
2134 |
/* TODO: this only works in 32-bit mode */ |
2135 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2136 |
uint64_t tmp = (uint32_t)reg(ic->arg[0]); |
2137 |
uint64_t tmp2 = tmp; |
2138 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2139 |
if (old_ca) |
2140 |
tmp ++; |
2141 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2142 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2143 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2144 |
} |
2145 |
DOT2(addze) |
2146 |
|
2147 |
|
2148 |
/* |
2149 |
* subf: Subf, etc. |
2150 |
* |
2151 |
* arg[0] = pointer to source register ra |
2152 |
* arg[1] = pointer to source register rb |
2153 |
* arg[2] = pointer to destination register rt |
2154 |
*/ |
2155 |
X(subf) |
2156 |
{ |
2157 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]); |
2158 |
} |
2159 |
DOT2(subf) |
2160 |
X(subfc) |
2161 |
{ |
2162 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2163 |
if (reg(ic->arg[1]) >= reg(ic->arg[0])) |
2164 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2165 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]); |
2166 |
} |
2167 |
DOT2(subfc) |
2168 |
X(subfe) |
2169 |
{ |
2170 |
int old_ca = (cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA)? 1 : 0; |
2171 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2172 |
if (reg(ic->arg[1]) == reg(ic->arg[0])) { |
2173 |
if (old_ca) |
2174 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2175 |
} else if (reg(ic->arg[1]) >= reg(ic->arg[0])) |
2176 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2177 |
|
2178 |
/* |
2179 |
* TODO: The register value calculation should be correct, |
2180 |
* but the CA bit calculation above is probably not. |
2181 |
*/ |
2182 |
|
2183 |
reg(ic->arg[2]) = reg(ic->arg[1]) - reg(ic->arg[0]) - (old_ca? 0 : 1); |
2184 |
} |
2185 |
DOT2(subfe) |
2186 |
X(subfme) |
2187 |
{ |
2188 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2189 |
uint64_t tmp = (uint32_t)(~reg(ic->arg[0])); |
2190 |
tmp += 0xffffffffULL; |
2191 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2192 |
if (old_ca) |
2193 |
tmp ++; |
2194 |
if ((tmp >> 32) != 0) |
2195 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2196 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2197 |
} |
2198 |
DOT2(subfme) |
2199 |
X(subfze) |
2200 |
{ |
2201 |
int old_ca = cpu->cd.ppc.spr[SPR_XER] & PPC_XER_CA; |
2202 |
uint64_t tmp = (uint32_t)(~reg(ic->arg[0])); |
2203 |
uint64_t tmp2 = tmp; |
2204 |
cpu->cd.ppc.spr[SPR_XER] &= ~PPC_XER_CA; |
2205 |
if (old_ca) |
2206 |
tmp ++; |
2207 |
if ((tmp >> 32) != (tmp2 >> 32)) |
2208 |
cpu->cd.ppc.spr[SPR_XER] |= PPC_XER_CA; |
2209 |
reg(ic->arg[2]) = (uint32_t)tmp; |
2210 |
} |
2211 |
DOT2(subfze) |
2212 |
|
2213 |
|
2214 |
/* |
2215 |
* ori, xori etc.: |
2216 |
* |
2217 |
* arg[0] = pointer to source uint64_t |
2218 |
* arg[1] = immediate value (uint32_t or larger) |
2219 |
* arg[2] = pointer to destination uint64_t |
2220 |
*/ |
2221 |
X(ori) { reg(ic->arg[2]) = reg(ic->arg[0]) | (uint32_t)ic->arg[1]; } |
2222 |
X(xori) { reg(ic->arg[2]) = reg(ic->arg[0]) ^ (uint32_t)ic->arg[1]; } |
2223 |
|
2224 |
|
2225 |
#include "tmp_ppc_loadstore.c" |
2226 |
|
2227 |
|
2228 |
/* |
2229 |
* lfs, stfs: Load/Store Floating-point Single precision |
2230 |
*/ |
2231 |
X(lfs) |
2232 |
{ |
2233 |
/* Sync. PC in case of an exception: */ |
2234 |
uint64_t old_pc, low_pc = ((size_t)ic - (size_t) |
2235 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2236 |
old_pc = cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
2237 |
+ (low_pc << 2); |
2238 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2239 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2240 |
return; |
2241 |
} |
2242 |
|
2243 |
/* Perform a 32-bit load: */ |
2244 |
#ifdef MODE32 |
2245 |
ppc32_loadstore |
2246 |
#else |
2247 |
ppc_loadstore |
2248 |
#endif |
2249 |
[2 + 4 + 8](cpu, ic); |
2250 |
|
2251 |
if (old_pc == cpu->pc) { |
2252 |
/* The load succeeded. Let's convert the value: */ |
2253 |
struct ieee_float_value val; |
2254 |
(*(uint64_t *)ic->arg[0]) &= 0xffffffff; |
2255 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], |
2256 |
&val, IEEE_FMT_S); |
2257 |
(*(uint64_t *)ic->arg[0]) = |
2258 |
ieee_store_float_value(val.f, IEEE_FMT_D, val.nan); |
2259 |
} |
2260 |
} |
2261 |
X(lfsx) |
2262 |
{ |
2263 |
/* Sync. PC in case of an exception: */ |
2264 |
uint64_t old_pc, low_pc = ((size_t)ic - (size_t) |
2265 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2266 |
old_pc = cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) |
2267 |
+ (low_pc << 2); |
2268 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2269 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2270 |
return; |
2271 |
} |
2272 |
|
2273 |
/* Perform a 32-bit load: */ |
2274 |
#ifdef MODE32 |
2275 |
ppc32_loadstore_indexed |
2276 |
#else |
2277 |
ppc_loadstore_indexed |
2278 |
#endif |
2279 |
[2 + 4 + 8](cpu, ic); |
2280 |
|
2281 |
if (old_pc == cpu->pc) { |
2282 |
/* The load succeeded. Let's convert the value: */ |
2283 |
struct ieee_float_value val; |
2284 |
(*(uint64_t *)ic->arg[0]) &= 0xffffffff; |
2285 |
ieee_interpret_float_value(*(uint64_t *)ic->arg[0], |
2286 |
&val, IEEE_FMT_S); |
2287 |
(*(uint64_t *)ic->arg[0]) = |
2288 |
ieee_store_float_value(val.f, IEEE_FMT_D, val.nan); |
2289 |
} |
2290 |
} |
2291 |
X(lfd) |
2292 |
{ |
2293 |
/* Sync. PC in case of an exception: */ |
2294 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2295 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2296 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2297 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2298 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2299 |
return; |
2300 |
} |
2301 |
|
2302 |
/* Perform a 64-bit load: */ |
2303 |
#ifdef MODE32 |
2304 |
ppc32_loadstore |
2305 |
#else |
2306 |
ppc_loadstore |
2307 |
#endif |
2308 |
[3 + 4 + 8](cpu, ic); |
2309 |
} |
2310 |
X(lfdx) |
2311 |
{ |
2312 |
/* Sync. PC in case of an exception: */ |
2313 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2314 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2315 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2316 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2317 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2318 |
return; |
2319 |
} |
2320 |
/* Perform a 64-bit load: */ |
2321 |
#ifdef MODE32 |
2322 |
ppc32_loadstore_indexed |
2323 |
#else |
2324 |
ppc_loadstore_indexed |
2325 |
#endif |
2326 |
[3 + 4 + 8](cpu, ic); |
2327 |
} |
2328 |
X(stfs) |
2329 |
{ |
2330 |
uint64_t *old_arg0 = (void *)ic->arg[0]; |
2331 |
struct ieee_float_value val; |
2332 |
uint64_t tmp_val; |
2333 |
|
2334 |
/* Sync. PC in case of an exception: */ |
2335 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2336 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2337 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2338 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2339 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2340 |
return; |
2341 |
} |
2342 |
|
2343 |
ieee_interpret_float_value(*old_arg0, &val, IEEE_FMT_D); |
2344 |
tmp_val = ieee_store_float_value(val.f, IEEE_FMT_S, val.nan); |
2345 |
|
2346 |
ic->arg[0] = (size_t)&tmp_val; |
2347 |
|
2348 |
/* Perform a 32-bit store: */ |
2349 |
#ifdef MODE32 |
2350 |
ppc32_loadstore |
2351 |
#else |
2352 |
ppc_loadstore |
2353 |
#endif |
2354 |
[2 + 4](cpu, ic); |
2355 |
|
2356 |
ic->arg[0] = (size_t)old_arg0; |
2357 |
} |
2358 |
X(stfsx) |
2359 |
{ |
2360 |
uint64_t *old_arg0 = (void *)ic->arg[0]; |
2361 |
struct ieee_float_value val; |
2362 |
uint64_t tmp_val; |
2363 |
|
2364 |
/* Sync. PC in case of an exception: */ |
2365 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2366 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2367 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2368 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2369 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2370 |
return; |
2371 |
} |
2372 |
|
2373 |
ieee_interpret_float_value(*old_arg0, &val, IEEE_FMT_D); |
2374 |
tmp_val = ieee_store_float_value(val.f, IEEE_FMT_S, val.nan); |
2375 |
|
2376 |
ic->arg[0] = (size_t)&tmp_val; |
2377 |
|
2378 |
/* Perform a 32-bit store: */ |
2379 |
#ifdef MODE32 |
2380 |
ppc32_loadstore_indexed |
2381 |
#else |
2382 |
ppc_loadstore_indexed |
2383 |
#endif |
2384 |
[2 + 4](cpu, ic); |
2385 |
|
2386 |
ic->arg[0] = (size_t)old_arg0; |
2387 |
} |
2388 |
X(stfd) |
2389 |
{ |
2390 |
/* Sync. PC in case of an exception: */ |
2391 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2392 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2393 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2394 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2395 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2396 |
return; |
2397 |
} |
2398 |
/* Perform a 64-bit store: */ |
2399 |
#ifdef MODE32 |
2400 |
ppc32_loadstore |
2401 |
#else |
2402 |
ppc_loadstore |
2403 |
#endif |
2404 |
[3 + 4](cpu, ic); |
2405 |
} |
2406 |
X(stfdx) |
2407 |
{ |
2408 |
/* Sync. PC in case of an exception: */ |
2409 |
uint64_t low_pc = ((size_t)ic - (size_t) |
2410 |
cpu->cd.ppc.cur_ic_page) / sizeof(struct ppc_instr_call); |
2411 |
cpu->pc = (cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2)) + (low_pc<<2); |
2412 |
if (!(cpu->cd.ppc.msr & PPC_MSR_FP)) { |
2413 |
ppc_exception(cpu, PPC_EXCEPTION_FPU); |
2414 |
return; |
2415 |
} |
2416 |
/* Perform a 64-bit store: */ |
2417 |
#ifdef MODE32 |
2418 |
ppc32_loadstore_indexed |
2419 |
#else |
2420 |
ppc_loadstore_indexed |
2421 |
#endif |
2422 |
[3 + 4](cpu, ic); |
2423 |
} |
2424 |
|
2425 |
|
2426 |
/* |
2427 |
* tlbia: TLB invalidate all |
2428 |
*/ |
2429 |
X(tlbia) |
2430 |
{ |
2431 |
printf("tlbia\n"); |
2432 |
exit(1); |
2433 |
cpu->invalidate_translation_caches(cpu, 0, INVALIDATE_ALL); |
2434 |
} |
2435 |
|
2436 |
|
2437 |
/* |
2438 |
* tlbie: TLB invalidate |
2439 |
*/ |
2440 |
X(tlbie) |
2441 |
{ |
2442 |
cpu->invalidate_translation_caches(cpu, reg(ic->arg[0]), |
2443 |
INVALIDATE_VADDR); |
2444 |
} |
2445 |
|
2446 |
|
2447 |
/* |
2448 |
* sc: Syscall. |
2449 |
*/ |
2450 |
X(sc) |
2451 |
{ |
2452 |
/* Synchronize the PC (pointing to _after_ this instruction) */ |
2453 |
cpu->pc = (cpu->pc & ~0xfff) + ic->arg[1]; |
2454 |
|
2455 |
ppc_exception(cpu, PPC_EXCEPTION_SC); |
2456 |
} |
2457 |
|
2458 |
|
2459 |
/* |
2460 |
* user_syscall: Userland syscall. |
2461 |
* |
2462 |
* arg[0] = syscall "level" (usually 0) |
2463 |
*/ |
2464 |
X(user_syscall) |
2465 |
{ |
2466 |
useremul_syscall(cpu, ic->arg[0]); |
2467 |
} |
2468 |
|
2469 |
|
2470 |
/* |
2471 |
* openfirmware: |
2472 |
*/ |
2473 |
X(openfirmware) |
2474 |
{ |
2475 |
of_emul(cpu); |
2476 |
cpu->pc = cpu->cd.ppc.spr[SPR_LR]; |
2477 |
if (cpu->machine->show_trace_tree) |
2478 |
cpu_functioncall_trace_return(cpu); |
2479 |
DYNTRANS_PC_TO_POINTERS(cpu); |
2480 |
} |
2481 |
|
2482 |
|
2483 |
/* |
2484 |
* tlbli: |
2485 |
*/ |
2486 |
X(tlbli) |
2487 |
{ |
2488 |
} |
2489 |
|
2490 |
|
2491 |
/* |
2492 |
* tlbld: |
2493 |
*/ |
2494 |
X(tlbld) |
2495 |
{ |
2496 |
/* MODE_uint_t vaddr = reg(ic->arg[0]); |
2497 |
MODE_uint_t paddr = cpu->cd.ppc.spr[SPR_RPA]; */ |
2498 |
|
2499 |
/* TODO? */ |
2500 |
} |
2501 |
|
2502 |
|
2503 |
/*****************************************************************************/ |
2504 |
|
2505 |
|
2506 |
X(end_of_page) |
2507 |
{ |
2508 |
/* Update the PC: (offset 0, but on the next page) */ |
2509 |
cpu->pc &= ~((PPC_IC_ENTRIES_PER_PAGE-1) << 2); |
2510 |
cpu->pc += (PPC_IC_ENTRIES_PER_PAGE << 2); |
2511 |
|
2512 |
/* Find the new physical page and update the translation pointers: */ |
2513 |
DYNTRANS_PC_TO_POINTERS(cpu); |
2514 |
|
2515 |
/* end_of_page doesn't count as an executed instruction: */ |
2516 |
cpu->n_translated_instrs --; |
2517 |
} |
2518 |
|
2519 |
|
2520 |
/*****************************************************************************/ |
2521 |
|
2522 |
|
2523 |
/* |
2524 |
* ppc_instr_to_be_translated(): |
2525 |
* |
2526 |
* Translate an instruction word into an ppc_instr_call. ic is filled in with |
2527 |
* valid data for the translated instruction, or a "nothing" instruction if |
2528 |
* there was a translation failure. The newly translated instruction is then |
2529 |
* executed. |
2530 |
*/ |
2531 |
X(to_be_translated) |
2532 |
{ |
2533 |
uint64_t addr, low_pc, tmp_addr; |
2534 |
uint32_t iword, mask; |
2535 |
unsigned char *page; |
2536 |
unsigned char ib[4]; |
2537 |
int main_opcode, rt, rs, ra, rb, rc, aa_bit, l_bit, lk_bit, spr, sh, |
2538 |
xo, imm, load, size, update, zero, bf, bo, bi, bh, oe_bit, n64=0, |
2539 |
bfa, fp, byterev, nb, mb, me; |
2540 |
void (*samepage_function)(struct cpu *, struct ppc_instr_call *); |
2541 |
void (*rc_f)(struct cpu *, struct ppc_instr_call *); |
2542 |
|
2543 |
/* Figure out the (virtual) address of the instruction: */ |
2544 |
low_pc = ((size_t)ic - (size_t)cpu->cd.ppc.cur_ic_page) |
2545 |
/ sizeof(struct ppc_instr_call); |
2546 |
addr = cpu->pc & ~((PPC_IC_ENTRIES_PER_PAGE-1) |
2547 |
<< PPC_INSTR_ALIGNMENT_SHIFT); |
2548 |
addr += (low_pc << PPC_INSTR_ALIGNMENT_SHIFT); |
2549 |
cpu->pc = addr; |
2550 |
addr &= ~((1 << PPC_INSTR_ALIGNMENT_SHIFT) - 1); |
2551 |
|
2552 |
/* Read the instruction word from memory: */ |
2553 |
page = cpu->cd.ppc.host_load[addr >> 12]; |
2554 |
|
2555 |
if (page != NULL) { |
2556 |
/* fatal("TRANSLATION HIT!\n"); */ |
2557 |
memcpy(ib, page + (addr & 0xfff), sizeof(ib)); |
2558 |
} else { |
2559 |
/* fatal("TRANSLATION MISS!\n"); */ |
2560 |
if (!cpu->memory_rw(cpu, cpu->mem, addr, ib, |
2561 |
sizeof(ib), MEM_READ, CACHE_INSTRUCTION)) { |
2562 |
fatal("PPC to_be_translated(): " |
2563 |
"read failed: TODO\n"); |
2564 |
exit(1); |
2565 |
/* goto bad; */ |
2566 |
} |
2567 |
} |
2568 |
|
2569 |
iword = *((uint32_t *)&ib[0]); |
2570 |
|
2571 |
#ifdef HOST_LITTLE_ENDIAN |
2572 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
2573 |
#else |
2574 |
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
2575 |
#endif |
2576 |
iword = ((iword & 0xff) << 24) | |
2577 |
((iword & 0xff00) << 8) | |
2578 |
((iword & 0xff0000) >> 8) | |
2579 |
((iword & 0xff000000) >> 24); |
2580 |
|
2581 |
|
2582 |
#define DYNTRANS_TO_BE_TRANSLATED_HEAD |
2583 |
#include "cpu_dyntrans.c" |
2584 |
#undef DYNTRANS_TO_BE_TRANSLATED_HEAD |
2585 |
|
2586 |
|
2587 |
/* |
2588 |
* Translate the instruction: |
2589 |
*/ |
2590 |
|
2591 |
main_opcode = iword >> 26; |
2592 |
|
2593 |
switch (main_opcode) { |
2594 |
|
2595 |
case PPC_HI6_MULLI: |
2596 |
rt = (iword >> 21) & 31; |
2597 |
ra = (iword >> 16) & 31; |
2598 |
imm = (int16_t)(iword & 0xffff); |
2599 |
ic->f = instr(mulli); |
2600 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2601 |
ic->arg[1] = (ssize_t)imm; |
2602 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2603 |
break; |
2604 |
|
2605 |
case PPC_HI6_SUBFIC: |
2606 |
rt = (iword >> 21) & 31; |
2607 |
ra = (iword >> 16) & 31; |
2608 |
imm = (int16_t)(iword & 0xffff); |
2609 |
ic->f = instr(subfic); |
2610 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2611 |
ic->arg[1] = (ssize_t)imm; |
2612 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2613 |
break; |
2614 |
|
2615 |
case PPC_HI6_CMPLI: |
2616 |
case PPC_HI6_CMPI: |
2617 |
bf = (iword >> 23) & 7; |
2618 |
l_bit = (iword >> 21) & 1; |
2619 |
ra = (iword >> 16) & 31; |
2620 |
if (main_opcode == PPC_HI6_CMPLI) { |
2621 |
imm = iword & 0xffff; |
2622 |
if (l_bit) |
2623 |
ic->f = instr(cmpldi); |
2624 |
else |
2625 |
ic->f = instr(cmplwi); |
2626 |
} else { |
2627 |
imm = (int16_t)(iword & 0xffff); |
2628 |
if (l_bit) |
2629 |
ic->f = instr(cmpdi); |
2630 |
else |
2631 |
ic->f = instr(cmpwi); |
2632 |
} |
2633 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2634 |
ic->arg[1] = (ssize_t)imm; |
2635 |
ic->arg[2] = 28 - 4 * bf; |
2636 |
break; |
2637 |
|
2638 |
case PPC_HI6_ADDIC: |
2639 |
case PPC_HI6_ADDIC_DOT: |
2640 |
if (cpu->cd.ppc.bits == 64) { |
2641 |
fatal("addic for 64-bit: TODO\n"); |
2642 |
goto bad; |
2643 |
} |
2644 |
rt = (iword >> 21) & 31; |
2645 |
ra = (iword >> 16) & 31; |
2646 |
imm = (int16_t)(iword & 0xffff); |
2647 |
if (main_opcode == PPC_HI6_ADDIC) |
2648 |
ic->f = instr(addic); |
2649 |
else |
2650 |
ic->f = instr(addic_dot); |
2651 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2652 |
ic->arg[1] = imm; |
2653 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2654 |
break; |
2655 |
|
2656 |
case PPC_HI6_ADDI: |
2657 |
case PPC_HI6_ADDIS: |
2658 |
rt = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2659 |
ic->f = instr(addi); |
2660 |
if (ra == 0) |
2661 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.zero); |
2662 |
else |
2663 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2664 |
ic->arg[1] = (int16_t)(iword & 0xffff); |
2665 |
if (main_opcode == PPC_HI6_ADDIS) |
2666 |
ic->arg[1] <<= 16; |
2667 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
2668 |
break; |
2669 |
|
2670 |
case PPC_HI6_ANDI_DOT: |
2671 |
case PPC_HI6_ANDIS_DOT: |
2672 |
rs = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2673 |
ic->f = instr(andi_dot); |
2674 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2675 |
ic->arg[1] = iword & 0xffff; |
2676 |
if (main_opcode == PPC_HI6_ANDIS_DOT) |
2677 |
ic->arg[1] <<= 16; |
2678 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2679 |
break; |
2680 |
|
2681 |
case PPC_HI6_ORI: |
2682 |
case PPC_HI6_ORIS: |
2683 |
case PPC_HI6_XORI: |
2684 |
case PPC_HI6_XORIS: |
2685 |
rs = (iword >> 21) & 31; ra = (iword >> 16) & 31; |
2686 |
if (main_opcode == PPC_HI6_ORI || |
2687 |
main_opcode == PPC_HI6_ORIS) |
2688 |
ic->f = instr(ori); |
2689 |
else |
2690 |
ic->f = instr(xori); |
2691 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2692 |
ic->arg[1] = iword & 0xffff; |
2693 |
if (main_opcode == PPC_HI6_ORIS || |
2694 |
main_opcode == PPC_HI6_XORIS) |
2695 |
ic->arg[1] <<= 16; |
2696 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2697 |
break; |
2698 |
|
2699 |
case PPC_HI6_LBZ: |
2700 |
case PPC_HI6_LBZU: |
2701 |
case PPC_HI6_LHZ: |
2702 |
case PPC_HI6_LHZU: |
2703 |
case PPC_HI6_LHA: |
2704 |
case PPC_HI6_LHAU: |
2705 |
case PPC_HI6_LWZ: |
2706 |
case PPC_HI6_LWZU: |
2707 |
case PPC_HI6_LFD: |
2708 |
case PPC_HI6_LFS: |
2709 |
case PPC_HI6_STB: |
2710 |
case PPC_HI6_STBU: |
2711 |
case PPC_HI6_STH: |
2712 |
case PPC_HI6_STHU: |
2713 |
case PPC_HI6_STW: |
2714 |
case PPC_HI6_STWU: |
2715 |
case PPC_HI6_STFD: |
2716 |
case PPC_HI6_STFS: |
2717 |
rs = (iword >> 21) & 31; |
2718 |
ra = (iword >> 16) & 31; |
2719 |
imm = (int16_t)iword; |
2720 |
load = 0; zero = 1; size = 0; update = 0; fp = 0; |
2721 |
ic->f = NULL; |
2722 |
switch (main_opcode) { |
2723 |
case PPC_HI6_LBZ: load=1; break; |
2724 |
case PPC_HI6_LBZU: load=1; update=1; break; |
2725 |
case PPC_HI6_LHA: load=1; size=1; zero=0; break; |
2726 |
case PPC_HI6_LHAU: load=1; size=1; zero=0; update=1; break; |
2727 |
case PPC_HI6_LHZ: load=1; size=1; break; |
2728 |
case PPC_HI6_LHZU: load=1; size=1; update=1; break; |
2729 |
case PPC_HI6_LWZ: load=1; size=2; break; |
2730 |
case PPC_HI6_LWZU: load=1; size=2; update=1; break; |
2731 |
case PPC_HI6_LFD: load=1; size=3; fp=1;ic->f=instr(lfd);break; |
2732 |
case PPC_HI6_LFS: load=1; size=2; fp=1;ic->f=instr(lfs);break; |
2733 |
case PPC_HI6_STB: break; |
2734 |
case PPC_HI6_STBU: update=1; break; |
2735 |
case PPC_HI6_STH: size=1; break; |
2736 |
case PPC_HI6_STHU: size=1; update=1; break; |
2737 |
case PPC_HI6_STW: size=2; break; |
2738 |
case PPC_HI6_STWU: size=2; update=1; break; |
2739 |
case PPC_HI6_STFD: size=3; fp=1; ic->f = instr(stfd); break; |
2740 |
case PPC_HI6_STFS: size=2; fp=1; ic->f = instr(stfs); break; |
2741 |
} |
2742 |
if (ic->f == NULL) { |
2743 |
ic->f = |
2744 |
#ifdef MODE32 |
2745 |
ppc32_loadstore |
2746 |
#else |
2747 |
ppc_loadstore |
2748 |
#endif |
2749 |
[size + 4*zero + 8*load + (imm==0? 16 : 0) |
2750 |
+ 32*update]; |
2751 |
} |
2752 |
if (ra == 0 && update) { |
2753 |
fatal("TODO: ra=0 && update?\n"); |
2754 |
goto bad; |
2755 |
} |
2756 |
if (fp) |
2757 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rs]); |
2758 |
else |
2759 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2760 |
if (ra == 0) |
2761 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
2762 |
else |
2763 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2764 |
ic->arg[2] = (ssize_t)imm; |
2765 |
break; |
2766 |
|
2767 |
case PPC_HI6_BC: |
2768 |
aa_bit = (iword >> 1) & 1; |
2769 |
lk_bit = iword & 1; |
2770 |
bo = (iword >> 21) & 31; |
2771 |
bi = (iword >> 16) & 31; |
2772 |
tmp_addr = (int64_t)(int16_t)(iword & 0xfffc); |
2773 |
if (aa_bit) { |
2774 |
fatal("aa_bit: NOT YET\n"); |
2775 |
goto bad; |
2776 |
} |
2777 |
if (lk_bit) { |
2778 |
ic->f = instr(bcl); |
2779 |
samepage_function = instr(bcl_samepage); |
2780 |
} else { |
2781 |
ic->f = instr(bc); |
2782 |
if (bo & 4) |
2783 |
samepage_function = instr(bc_samepage_no_ctr); |
2784 |
else |
2785 |
samepage_function = instr(bc_samepage); |
2786 |
} |
2787 |
ic->arg[0] = (ssize_t)tmp_addr; |
2788 |
ic->arg[1] = bo; |
2789 |
ic->arg[2] = bi; |
2790 |
/* Branches are calculated as cur PC + offset. */ |
2791 |
/* Special case: branch within the same page: */ |
2792 |
{ |
2793 |
uint64_t mask_within_page = |
2794 |
((PPC_IC_ENTRIES_PER_PAGE-1) << 2) | 3; |
2795 |
uint64_t old_pc = addr; |
2796 |
uint64_t new_pc = old_pc + (int32_t)ic->arg[0]; |
2797 |
if ((old_pc & ~mask_within_page) == |
2798 |
(new_pc & ~mask_within_page)) { |
2799 |
ic->f = samepage_function; |
2800 |
ic->arg[0] = (size_t) ( |
2801 |
cpu->cd.ppc.cur_ic_page + |
2802 |
((new_pc & mask_within_page) >> 2)); |
2803 |
} |
2804 |
} |
2805 |
break; |
2806 |
|
2807 |
case PPC_HI6_SC: |
2808 |
ic->arg[0] = (iword >> 5) & 0x7f; |
2809 |
ic->arg[1] = (addr & 0xfff) + 4; |
2810 |
if (cpu->machine->userland_emul != NULL) |
2811 |
ic->f = instr(user_syscall); |
2812 |
else if (iword == 0x44ee0002) { |
2813 |
/* Special case/magic hack for OpenFirmware emul: */ |
2814 |
ic->f = instr(openfirmware); |
2815 |
} else |
2816 |
ic->f = instr(sc); |
2817 |
break; |
2818 |
|
2819 |
case PPC_HI6_B: |
2820 |
aa_bit = (iword & 2) >> 1; |
2821 |
lk_bit = iword & 1; |
2822 |
tmp_addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
2823 |
tmp_addr = (int64_t)tmp_addr >> 6; |
2824 |
if (lk_bit) { |
2825 |
if (cpu->machine->show_trace_tree) { |
2826 |
ic->f = instr(bl_trace); |
2827 |
samepage_function = instr(bl_samepage_trace); |
2828 |
} else { |
2829 |
ic->f = instr(bl); |
2830 |
samepage_function = instr(bl_samepage); |
2831 |
} |
2832 |
} else { |
2833 |
ic->f = instr(b); |
2834 |
samepage_function = instr(b_samepage); |
2835 |
} |
2836 |
ic->arg[0] = (ssize_t)tmp_addr; |
2837 |
/* Branches are calculated as cur PC + offset. */ |
2838 |
/* Special case: branch within the same page: */ |
2839 |
{ |
2840 |
uint64_t mask_within_page = |
2841 |
((PPC_IC_ENTRIES_PER_PAGE-1) << 2) | 3; |
2842 |
uint64_t old_pc = addr; |
2843 |
uint64_t new_pc = old_pc + (int32_t)ic->arg[0]; |
2844 |
if ((old_pc & ~mask_within_page) == |
2845 |
(new_pc & ~mask_within_page)) { |
2846 |
ic->f = samepage_function; |
2847 |
ic->arg[0] = (size_t) ( |
2848 |
cpu->cd.ppc.cur_ic_page + |
2849 |
((new_pc & mask_within_page) >> 2)); |
2850 |
} |
2851 |
} |
2852 |
if (aa_bit) { |
2853 |
if (lk_bit) { |
2854 |
if (cpu->machine->show_trace_tree) { |
2855 |
ic->f = instr(bla_trace); |
2856 |
} else { |
2857 |
ic->f = instr(bla); |
2858 |
} |
2859 |
} else { |
2860 |
ic->f = instr(ba); |
2861 |
} |
2862 |
ic->arg[0] = (ssize_t)tmp_addr; |
2863 |
} |
2864 |
break; |
2865 |
|
2866 |
case PPC_HI6_19: |
2867 |
xo = (iword >> 1) & 1023; |
2868 |
switch (xo) { |
2869 |
|
2870 |
case PPC_19_BCLR: |
2871 |
case PPC_19_BCCTR: |
2872 |
bo = (iword >> 21) & 31; |
2873 |
bi = (iword >> 16) & 31; |
2874 |
bh = (iword >> 11) & 3; |
2875 |
lk_bit = iword & 1; |
2876 |
if (xo == PPC_19_BCLR) { |
2877 |
if (lk_bit) |
2878 |
ic->f = instr(bclr_l); |
2879 |
else { |
2880 |
ic->f = instr(bclr); |
2881 |
if (!cpu->machine->show_trace_tree && |
2882 |
(bo & 0x14) == 0x14) |
2883 |
ic->f = instr(bclr_20); |
2884 |
} |
2885 |
} else { |
2886 |
if (lk_bit) |
2887 |
ic->f = instr(bcctr_l); |
2888 |
else |
2889 |
ic->f = instr(bcctr); |
2890 |
} |
2891 |
ic->arg[0] = bo; |
2892 |
ic->arg[1] = 31 - bi; |
2893 |
ic->arg[2] = bh; |
2894 |
break; |
2895 |
|
2896 |
case PPC_19_ISYNC: |
2897 |
/* TODO */ |
2898 |
ic->f = instr(nop); |
2899 |
break; |
2900 |
|
2901 |
case PPC_19_RFI: |
2902 |
ic->f = instr(rfi); |
2903 |
break; |
2904 |
|
2905 |
case PPC_19_MCRF: |
2906 |
bf = (iword >> 23) & 7; |
2907 |
bfa = (iword >> 18) & 7; |
2908 |
ic->arg[0] = 28 - 4*bf; |
2909 |
ic->arg[1] = 28 - 4*bfa; |
2910 |
ic->f = instr(mcrf); |
2911 |
break; |
2912 |
|
2913 |
case PPC_19_CRAND: |
2914 |
case PPC_19_CRANDC: |
2915 |
case PPC_19_CREQV: |
2916 |
case PPC_19_CROR: |
2917 |
case PPC_19_CRNOR: |
2918 |
case PPC_19_CRXOR: |
2919 |
switch (xo) { |
2920 |
case PPC_19_CRAND: ic->f = instr(crand); break; |
2921 |
case PPC_19_CRANDC: ic->f = instr(crandc); break; |
2922 |
case PPC_19_CREQV: ic->f = instr(creqv); break; |
2923 |
case PPC_19_CROR: ic->f = instr(cror); break; |
2924 |
case PPC_19_CRNOR: ic->f = instr(crnor); break; |
2925 |
case PPC_19_CRXOR: ic->f = instr(crxor); break; |
2926 |
} |
2927 |
ic->arg[0] = iword; |
2928 |
break; |
2929 |
|
2930 |
default:goto bad; |
2931 |
} |
2932 |
break; |
2933 |
|
2934 |
case PPC_HI6_RLWNM: |
2935 |
case PPC_HI6_RLWINM: |
2936 |
ra = (iword >> 16) & 31; |
2937 |
mb = (iword >> 6) & 31; |
2938 |
me = (iword >> 1) & 31; |
2939 |
rc = iword & 1; |
2940 |
mask = 0; |
2941 |
for (;;) { |
2942 |
mask |= ((uint32_t)0x80000000 >> mb); |
2943 |
if (mb == me) |
2944 |
break; |
2945 |
mb ++; mb &= 31; |
2946 |
} |
2947 |
switch (main_opcode) { |
2948 |
case PPC_HI6_RLWNM: |
2949 |
ic->f = rc? instr(rlwnm_dot) : instr(rlwnm); break; |
2950 |
case PPC_HI6_RLWINM: |
2951 |
ic->f = rc? instr(rlwinm_dot) : instr(rlwinm); break; |
2952 |
} |
2953 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2954 |
ic->arg[1] = mask; |
2955 |
ic->arg[2] = (uint32_t)iword; |
2956 |
break; |
2957 |
|
2958 |
case PPC_HI6_RLWIMI: |
2959 |
rs = (iword >> 21) & 31; |
2960 |
ra = (iword >> 16) & 31; |
2961 |
ic->f = instr(rlwimi); |
2962 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
2963 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2964 |
ic->arg[2] = (uint32_t)iword; |
2965 |
break; |
2966 |
|
2967 |
case PPC_HI6_LMW: |
2968 |
case PPC_HI6_STMW: |
2969 |
/* NOTE: Loads use rt, not rs. */ |
2970 |
rs = (iword >> 21) & 31; |
2971 |
ra = (iword >> 16) & 31; |
2972 |
ic->arg[0] = rs; |
2973 |
if (ra == 0) |
2974 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
2975 |
else |
2976 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
2977 |
ic->arg[2] = (int32_t)(int16_t)iword; |
2978 |
switch (main_opcode) { |
2979 |
case PPC_HI6_LMW: |
2980 |
ic->f = instr(lmw); |
2981 |
break; |
2982 |
case PPC_HI6_STMW: |
2983 |
ic->f = instr(stmw); |
2984 |
break; |
2985 |
} |
2986 |
break; |
2987 |
|
2988 |
case PPC_HI6_30: |
2989 |
xo = (iword >> 2) & 7; |
2990 |
switch (xo) { |
2991 |
|
2992 |
case PPC_30_RLDICR: |
2993 |
ic->f = instr(rldicr); |
2994 |
ic->arg[0] = iword; |
2995 |
if (cpu->cd.ppc.bits == 32) { |
2996 |
fatal("TODO: rldicr in 32-bit mode?\n"); |
2997 |
goto bad; |
2998 |
} |
2999 |
break; |
3000 |
|
3001 |
default:goto bad; |
3002 |
} |
3003 |
break; |
3004 |
|
3005 |
case PPC_HI6_31: |
3006 |
xo = (iword >> 1) & 1023; |
3007 |
switch (xo) { |
3008 |
|
3009 |
case PPC_31_CMPL: |
3010 |
case PPC_31_CMP: |
3011 |
bf = (iword >> 23) & 7; |
3012 |
l_bit = (iword >> 21) & 1; |
3013 |
ra = (iword >> 16) & 31; |
3014 |
rb = (iword >> 11) & 31; |
3015 |
if (xo == PPC_31_CMPL) { |
3016 |
if (l_bit) |
3017 |
ic->f = instr(cmpld); |
3018 |
else |
3019 |
ic->f = instr(cmplw); |
3020 |
} else { |
3021 |
if (l_bit) |
3022 |
ic->f = instr(cmpd); |
3023 |
else |
3024 |
ic->f = instr(cmpw); |
3025 |
} |
3026 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3027 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3028 |
ic->arg[2] = 28 - 4*bf; |
3029 |
break; |
3030 |
|
3031 |
case PPC_31_CNTLZW: |
3032 |
rs = (iword >> 21) & 31; |
3033 |
ra = (iword >> 16) & 31; |
3034 |
rc = iword & 1; |
3035 |
if (rc) { |
3036 |
fatal("TODO: rc\n"); |
3037 |
goto bad; |
3038 |
} |
3039 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3040 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3041 |
ic->f = instr(cntlzw); |
3042 |
break; |
3043 |
|
3044 |
case PPC_31_MFSPR: |
3045 |
rt = (iword >> 21) & 31; |
3046 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3047 |
debug_spr_usage(cpu->pc, spr); |
3048 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3049 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.spr[spr]); |
3050 |
switch (spr) { |
3051 |
case SPR_PMC1: ic->f = instr(mfspr_pmc1); break; |
3052 |
default: ic->f = instr(mfspr); |
3053 |
} |
3054 |
break; |
3055 |
|
3056 |
case PPC_31_MTSPR: |
3057 |
rs = (iword >> 21) & 31; |
3058 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3059 |
debug_spr_usage(cpu->pc, spr); |
3060 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3061 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.spr[spr]); |
3062 |
ic->f = instr(mtspr); |
3063 |
break; |
3064 |
|
3065 |
case PPC_31_MFCR: |
3066 |
rt = (iword >> 21) & 31; |
3067 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3068 |
ic->f = instr(mfcr); |
3069 |
break; |
3070 |
|
3071 |
case PPC_31_MFMSR: |
3072 |
rt = (iword >> 21) & 31; |
3073 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3074 |
ic->f = instr(mfmsr); |
3075 |
break; |
3076 |
|
3077 |
case PPC_31_MTMSR: |
3078 |
rs = (iword >> 21) & 31; |
3079 |
l_bit = (iword >> 16) & 1; |
3080 |
if (l_bit) { |
3081 |
fatal("TODO: mtmsr l-bit\n"); |
3082 |
goto bad; |
3083 |
} |
3084 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3085 |
ic->arg[1] = (addr & 0xfff) + 4; |
3086 |
ic->f = instr(mtmsr); |
3087 |
break; |
3088 |
|
3089 |
case PPC_31_MTCRF: |
3090 |
rs = (iword >> 21) & 31; |
3091 |
{ |
3092 |
int i, fxm = (iword >> 12) & 255; |
3093 |
uint32_t tmp = 0; |
3094 |
for (i=0; i<8; i++, fxm <<= 1) { |
3095 |
tmp <<= 4; |
3096 |
if (fxm & 128) |
3097 |
tmp |= 0xf; |
3098 |
} |
3099 |
ic->arg[1] = (uint32_t)tmp; |
3100 |
} |
3101 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3102 |
ic->f = instr(mtcrf); |
3103 |
break; |
3104 |
|
3105 |
case PPC_31_MFSRIN: |
3106 |
case PPC_31_MTSRIN: |
3107 |
rt = (iword >> 21) & 31; |
3108 |
rb = (iword >> 11) & 31; |
3109 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3110 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3111 |
switch (xo) { |
3112 |
case PPC_31_MFSRIN: ic->f = instr(mfsrin); break; |
3113 |
case PPC_31_MTSRIN: ic->f = instr(mtsrin); break; |
3114 |
} |
3115 |
if (cpu->cd.ppc.bits == 64) { |
3116 |
fatal("Not yet for 64-bit mode\n"); |
3117 |
goto bad; |
3118 |
} |
3119 |
break; |
3120 |
|
3121 |
case PPC_31_MFSR: |
3122 |
case PPC_31_MTSR: |
3123 |
rt = (iword >> 21) & 31; |
3124 |
ic->arg[0] = (iword >> 16) & 15; |
3125 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3126 |
switch (xo) { |
3127 |
case PPC_31_MFSR: ic->f = instr(mfsr); break; |
3128 |
case PPC_31_MTSR: ic->f = instr(mtsr); break; |
3129 |
} |
3130 |
if (cpu->cd.ppc.bits == 64) { |
3131 |
fatal("Not yet for 64-bit mode\n"); |
3132 |
goto bad; |
3133 |
} |
3134 |
break; |
3135 |
|
3136 |
case PPC_31_SRAWI: |
3137 |
rs = (iword >> 21) & 31; |
3138 |
ra = (iword >> 16) & 31; |
3139 |
sh = (iword >> 11) & 31; |
3140 |
rc = iword & 1; |
3141 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3142 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3143 |
ic->arg[2] = sh; |
3144 |
if (rc) |
3145 |
ic->f = instr(srawi_dot); |
3146 |
else |
3147 |
ic->f = instr(srawi); |
3148 |
break; |
3149 |
|
3150 |
case PPC_31_SYNC: |
3151 |
case PPC_31_EIEIO: |
3152 |
case PPC_31_DCBST: |
3153 |
case PPC_31_DCBTST: |
3154 |
case PPC_31_DCBF: |
3155 |
case PPC_31_DCBT: |
3156 |
case PPC_31_ICBI: |
3157 |
ic->f = instr(nop); |
3158 |
break; |
3159 |
|
3160 |
case PPC_31_DCBZ: |
3161 |
ra = (iword >> 16) & 31; |
3162 |
rb = (iword >> 11) & 31; |
3163 |
if (ra == 0) |
3164 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.zero); |
3165 |
else |
3166 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3167 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3168 |
ic->arg[2] = addr & 0xfff; |
3169 |
ic->f = instr(dcbz); |
3170 |
break; |
3171 |
|
3172 |
case PPC_31_TLBIA: |
3173 |
ic->f = instr(tlbia); |
3174 |
break; |
3175 |
|
3176 |
case PPC_31_TLBSYNC: |
3177 |
/* According to IBM, "Ensures that a tlbie and |
3178 |
tlbia instruction executed by one processor has |
3179 |
completed on all other processors.", which in |
3180 |
GXemul means a nop :-) */ |
3181 |
ic->f = instr(nop); |
3182 |
break; |
3183 |
|
3184 |
case PPC_31_TLBIE: |
3185 |
/* TODO: POWER also uses ra? */ |
3186 |
rb = (iword >> 11) & 31; |
3187 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3188 |
ic->f = instr(tlbie); |
3189 |
break; |
3190 |
|
3191 |
case PPC_31_TLBLD: /* takes an arg */ |
3192 |
rb = (iword >> 11) & 31; |
3193 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3194 |
ic->f = instr(tlbld); |
3195 |
break; |
3196 |
|
3197 |
case PPC_31_TLBLI: /* takes an arg */ |
3198 |
rb = (iword >> 11) & 31; |
3199 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3200 |
ic->f = instr(tlbli); |
3201 |
break; |
3202 |
|
3203 |
case PPC_31_MFTB: |
3204 |
rt = (iword >> 21) & 31; |
3205 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
3206 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3207 |
switch (spr) { |
3208 |
case 268: ic->f = instr(mftb); break; |
3209 |
case 269: ic->f = instr(mftbu); break; |
3210 |
default:fatal("mftb spr=%i?\n", spr); |
3211 |
goto bad; |
3212 |
} |
3213 |
break; |
3214 |
|
3215 |
case PPC_31_NEG: |
3216 |
rt = (iword >> 21) & 31; |
3217 |
ra = (iword >> 16) & 31; |
3218 |
rc = iword & 1; |
3219 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3220 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3221 |
if (rc) |
3222 |
ic->f = instr(neg_dot); |
3223 |
else |
3224 |
ic->f = instr(neg); |
3225 |
break; |
3226 |
|
3227 |
case PPC_31_LWARX: |
3228 |
case PPC_31_LDARX: |
3229 |
case PPC_31_STWCX_DOT: |
3230 |
case PPC_31_STDCX_DOT: |
3231 |
ic->arg[0] = iword; |
3232 |
ic->f = instr(llsc); |
3233 |
break; |
3234 |
|
3235 |
case PPC_31_LSWI: |
3236 |
case PPC_31_STSWI: |
3237 |
rs = (iword >> 21) & 31; |
3238 |
ra = (iword >> 16) & 31; |
3239 |
nb = (iword >> 11) & 31; |
3240 |
ic->arg[0] = rs; |
3241 |
if (ra == 0) |
3242 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3243 |
else |
3244 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3245 |
ic->arg[2] = nb == 0? 32 : nb; |
3246 |
switch (xo) { |
3247 |
case PPC_31_LSWI: ic->f = instr(lswi); break; |
3248 |
case PPC_31_STSWI: ic->f = instr(stswi); break; |
3249 |
} |
3250 |
break; |
3251 |
|
3252 |
case 0x1c3: |
3253 |
fatal("[ mtdcr: TODO ]\n"); |
3254 |
ic->f = instr(nop); |
3255 |
break; |
3256 |
|
3257 |
case PPC_31_LBZX: |
3258 |
case PPC_31_LBZUX: |
3259 |
case PPC_31_LHAX: |
3260 |
case PPC_31_LHAUX: |
3261 |
case PPC_31_LHZX: |
3262 |
case PPC_31_LHZUX: |
3263 |
case PPC_31_LWZX: |
3264 |
case PPC_31_LWZUX: |
3265 |
case PPC_31_LHBRX: |
3266 |
case PPC_31_LWBRX: |
3267 |
case PPC_31_LFDX: |
3268 |
case PPC_31_LFSX: |
3269 |
case PPC_31_STBX: |
3270 |
case PPC_31_STBUX: |
3271 |
case PPC_31_STHX: |
3272 |
case PPC_31_STHUX: |
3273 |
case PPC_31_STWX: |
3274 |
case PPC_31_STWUX: |
3275 |
case PPC_31_STDX: |
3276 |
case PPC_31_STDUX: |
3277 |
case PPC_31_STHBRX: |
3278 |
case PPC_31_STWBRX: |
3279 |
case PPC_31_STFDX: |
3280 |
case PPC_31_STFSX: |
3281 |
rs = (iword >> 21) & 31; |
3282 |
ra = (iword >> 16) & 31; |
3283 |
rb = (iword >> 11) & 31; |
3284 |
if (ra == 0) |
3285 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.zero); |
3286 |
else |
3287 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3288 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3289 |
load = 0; zero = 1; size = 0; update = 0; |
3290 |
byterev = 0; fp = 0; |
3291 |
ic->f = NULL; |
3292 |
switch (xo) { |
3293 |
case PPC_31_LBZX: load = 1; break; |
3294 |
case PPC_31_LBZUX: load=update=1; break; |
3295 |
case PPC_31_LHAX: size=1; load=1; zero=0; break; |
3296 |
case PPC_31_LHAUX: size=1; load=update=1; zero=0; break; |
3297 |
case PPC_31_LHZX: size=1; load=1; break; |
3298 |
case PPC_31_LHZUX: size=1; load=update = 1; break; |
3299 |
case PPC_31_LWZX: size=2; load=1; break; |
3300 |
case PPC_31_LWZUX: size=2; load=update = 1; break; |
3301 |
case PPC_31_LHBRX: size=1; load=1; byterev=1; |
3302 |
ic->f = instr(lhbrx); break; |
3303 |
case PPC_31_LWBRX: size=2; load=1; byterev=1; |
3304 |
ic->f = instr(lwbrx); break; |
3305 |
case PPC_31_LFDX: size=3; load=1; fp=1; |
3306 |
ic->f = instr(lfdx); break; |
3307 |
case PPC_31_LFSX: size=2; load=1; fp=1; |
3308 |
ic->f = instr(lfsx); break; |
3309 |
case PPC_31_STBX: break; |
3310 |
case PPC_31_STBUX: update = 1; break; |
3311 |
case PPC_31_STHX: size=1; break; |
3312 |
case PPC_31_STHUX: size=1; update = 1; break; |
3313 |
case PPC_31_STWX: size=2; break; |
3314 |
case PPC_31_STWUX: size=2; update = 1; break; |
3315 |
case PPC_31_STDX: size=3; break; |
3316 |
case PPC_31_STDUX: size=3; update = 1; break; |
3317 |
case PPC_31_STHBRX:size=1; byterev = 1; |
3318 |
ic->f = instr(sthbrx); break; |
3319 |
case PPC_31_STWBRX:size=2; byterev = 1; |
3320 |
ic->f = instr(stwbrx); break; |
3321 |
case PPC_31_STFDX: size=3; fp=1; |
3322 |
ic->f = instr(stfdx); break; |
3323 |
case PPC_31_STFSX: size=2; fp=1; |
3324 |
ic->f = instr(stfsx); break; |
3325 |
} |
3326 |
if (fp) |
3327 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rs]); |
3328 |
else |
3329 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3330 |
if (!byterev && ic->f == NULL) { |
3331 |
ic->f = |
3332 |
#ifdef MODE32 |
3333 |
ppc32_loadstore_indexed |
3334 |
#else |
3335 |
ppc_loadstore_indexed |
3336 |
#endif |
3337 |
[size + 4*zero + 8*load + 16*update]; |
3338 |
} |
3339 |
if (ra == 0 && update) { |
3340 |
fatal("TODO: ra=0 && update?\n"); |
3341 |
goto bad; |
3342 |
} |
3343 |
break; |
3344 |
|
3345 |
case PPC_31_EXTSB: |
3346 |
case PPC_31_EXTSH: |
3347 |
case PPC_31_EXTSW: |
3348 |
case PPC_31_SLW: |
3349 |
case PPC_31_SRAW: |
3350 |
case PPC_31_SRW: |
3351 |
case PPC_31_AND: |
3352 |
case PPC_31_NAND: |
3353 |
case PPC_31_ANDC: |
3354 |
case PPC_31_NOR: |
3355 |
case PPC_31_OR: |
3356 |
case PPC_31_ORC: |
3357 |
case PPC_31_XOR: |
3358 |
rs = (iword >> 21) & 31; |
3359 |
ra = (iword >> 16) & 31; |
3360 |
rb = (iword >> 11) & 31; |
3361 |
rc = iword & 1; |
3362 |
rc_f = NULL; |
3363 |
switch (xo) { |
3364 |
case PPC_31_EXTSB:ic->f = instr(extsb); |
3365 |
rc_f = instr(extsb_dot); break; |
3366 |
case PPC_31_EXTSH:ic->f = instr(extsh); |
3367 |
rc_f = instr(extsh_dot); break; |
3368 |
case PPC_31_EXTSW:ic->f = instr(extsw); |
3369 |
rc_f = instr(extsw_dot); break; |
3370 |
case PPC_31_SLW: ic->f = instr(slw); |
3371 |
rc_f = instr(slw_dot); break; |
3372 |
case PPC_31_SRAW: ic->f = instr(sraw); |
3373 |
rc_f = instr(sraw_dot); break; |
3374 |
case PPC_31_SRW: ic->f = instr(srw); |
3375 |
rc_f = instr(srw_dot); break; |
3376 |
case PPC_31_AND: ic->f = instr(and); |
3377 |
rc_f = instr(and_dot); break; |
3378 |
case PPC_31_NAND: ic->f = instr(nand); |
3379 |
rc_f = instr(nand_dot); break; |
3380 |
case PPC_31_ANDC: ic->f = instr(andc); |
3381 |
rc_f = instr(andc_dot); break; |
3382 |
case PPC_31_NOR: ic->f = instr(nor); |
3383 |
rc_f = instr(nor_dot); break; |
3384 |
case PPC_31_OR: ic->f = instr(or); |
3385 |
rc_f = instr(or_dot); break; |
3386 |
case PPC_31_ORC: ic->f = instr(orc); |
3387 |
rc_f = instr(orc_dot); break; |
3388 |
case PPC_31_XOR: ic->f = instr(xor); |
3389 |
rc_f = instr(xor_dot); break; |
3390 |
} |
3391 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[rs]); |
3392 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3393 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3394 |
if (rc) |
3395 |
ic->f = rc_f; |
3396 |
break; |
3397 |
|
3398 |
case PPC_31_MULLW: |
3399 |
case PPC_31_MULHW: |
3400 |
case PPC_31_MULHWU: |
3401 |
case PPC_31_DIVW: |
3402 |
case PPC_31_DIVWU: |
3403 |
case PPC_31_ADD: |
3404 |
case PPC_31_ADDC: |
3405 |
case PPC_31_ADDE: |
3406 |
case PPC_31_ADDME: |
3407 |
case PPC_31_ADDZE: |
3408 |
case PPC_31_SUBF: |
3409 |
case PPC_31_SUBFC: |
3410 |
case PPC_31_SUBFE: |
3411 |
case PPC_31_SUBFME: |
3412 |
case PPC_31_SUBFZE: |
3413 |
rt = (iword >> 21) & 31; |
3414 |
ra = (iword >> 16) & 31; |
3415 |
rb = (iword >> 11) & 31; |
3416 |
oe_bit = (iword >> 10) & 1; |
3417 |
rc = iword & 1; |
3418 |
if (oe_bit) { |
3419 |
fatal("oe_bit not yet implemented\n"); |
3420 |
goto bad; |
3421 |
} |
3422 |
switch (xo) { |
3423 |
case PPC_31_MULLW: ic->f = instr(mullw); break; |
3424 |
case PPC_31_MULHW: ic->f = instr(mulhw); break; |
3425 |
case PPC_31_MULHWU: ic->f = instr(mulhwu); break; |
3426 |
case PPC_31_DIVW: ic->f = instr(divw); n64=1; break; |
3427 |
case PPC_31_DIVWU: ic->f = instr(divwu); n64=1; break; |
3428 |
case PPC_31_ADD: ic->f = instr(add); break; |
3429 |
case PPC_31_ADDC: ic->f = instr(addc); n64=1; break; |
3430 |
case PPC_31_ADDE: ic->f = instr(adde); n64=1; break; |
3431 |
case PPC_31_ADDME: ic->f = instr(addme); n64=1; break; |
3432 |
case PPC_31_ADDZE: ic->f = instr(addze); n64=1; break; |
3433 |
case PPC_31_SUBF: ic->f = instr(subf); break; |
3434 |
case PPC_31_SUBFC: ic->f = instr(subfc); break; |
3435 |
case PPC_31_SUBFE: ic->f = instr(subfe); n64=1; break; |
3436 |
case PPC_31_SUBFME: ic->f = instr(subfme); n64=1; break; |
3437 |
case PPC_31_SUBFZE: ic->f = instr(subfze); n64=1;break; |
3438 |
} |
3439 |
if (rc) { |
3440 |
switch (xo) { |
3441 |
case PPC_31_ADD: |
3442 |
ic->f = instr(add_dot); break; |
3443 |
case PPC_31_ADDE: |
3444 |
ic->f = instr(adde_dot); break; |
3445 |
case PPC_31_ADDME: |
3446 |
ic->f = instr(addme_dot); break; |
3447 |
case PPC_31_ADDZE: |
3448 |
ic->f = instr(addze_dot); break; |
3449 |
case PPC_31_DIVW: |
3450 |
ic->f = instr(divw_dot); break; |
3451 |
case PPC_31_DIVWU: |
3452 |
ic->f = instr(divwu_dot); break; |
3453 |
case PPC_31_MULLW: |
3454 |
ic->f = instr(mullw_dot); break; |
3455 |
case PPC_31_MULHW: |
3456 |
ic->f = instr(mulhw_dot); break; |
3457 |
case PPC_31_MULHWU: |
3458 |
ic->f = instr(mulhwu_dot); break; |
3459 |
case PPC_31_SUBF: |
3460 |
ic->f = instr(subf_dot); break; |
3461 |
case PPC_31_SUBFC: |
3462 |
ic->f = instr(subfc_dot); break; |
3463 |
case PPC_31_SUBFE: |
3464 |
ic->f = instr(subfe_dot); break; |
3465 |
case PPC_31_SUBFME: |
3466 |
ic->f = instr(subfme_dot); break; |
3467 |
case PPC_31_SUBFZE: |
3468 |
ic->f = instr(subfze_dot); break; |
3469 |
default:fatal("RC bit not yet implemented\n"); |
3470 |
goto bad; |
3471 |
} |
3472 |
} |
3473 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.gpr[ra]); |
3474 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.gpr[rb]); |
3475 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.gpr[rt]); |
3476 |
if (cpu->cd.ppc.bits == 64 && n64) { |
3477 |
fatal("Not yet for 64-bit mode\n"); |
3478 |
goto bad; |
3479 |
} |
3480 |
break; |
3481 |
|
3482 |
default:goto bad; |
3483 |
} |
3484 |
break; |
3485 |
|
3486 |
case PPC_HI6_59: |
3487 |
xo = (iword >> 1) & 1023; |
3488 |
rt = (iword >> 21) & 31; |
3489 |
ra = (iword >> 16) & 31; |
3490 |
rb = (iword >> 11) & 31; |
3491 |
rs = (iword >> 6) & 31; /* actually frc */ |
3492 |
rc = iword & 1; |
3493 |
|
3494 |
if (rc) { |
3495 |
fatal("Floating point (59) with rc bit! TODO\n"); |
3496 |
goto bad; |
3497 |
} |
3498 |
|
3499 |
/* NOTE: Some floating-point instructions are selected |
3500 |
using only the lowest 5 bits, not all 10! */ |
3501 |
switch (xo & 31) { |
3502 |
case PPC_59_FDIVS: |
3503 |
case PPC_59_FSUBS: |
3504 |
case PPC_59_FADDS: |
3505 |
switch (xo & 31) { |
3506 |
case PPC_59_FDIVS: ic->f = instr(fdivs); break; |
3507 |
case PPC_59_FSUBS: ic->f = instr(fsubs); break; |
3508 |
case PPC_59_FADDS: ic->f = instr(fadds); break; |
3509 |
} |
3510 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3511 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3512 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3513 |
break; |
3514 |
case PPC_59_FMULS: |
3515 |
ic->f = instr(fmuls); |
3516 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3517 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3518 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rs]); /* frc */ |
3519 |
break; |
3520 |
default:/* Use all 10 bits of xo: */ |
3521 |
switch (xo) { |
3522 |
default:goto bad; |
3523 |
} |
3524 |
} |
3525 |
break; |
3526 |
|
3527 |
case PPC_HI6_63: |
3528 |
xo = (iword >> 1) & 1023; |
3529 |
rt = (iword >> 21) & 31; |
3530 |
ra = (iword >> 16) & 31; |
3531 |
rb = (iword >> 11) & 31; |
3532 |
rs = (iword >> 6) & 31; /* actually frc */ |
3533 |
rc = iword & 1; |
3534 |
|
3535 |
if (rc) { |
3536 |
fatal("Floating point (63) with rc bit! TODO\n"); |
3537 |
goto bad; |
3538 |
} |
3539 |
|
3540 |
/* NOTE: Some floating-point instructions are selected |
3541 |
using only the lowest 5 bits, not all 10! */ |
3542 |
switch (xo & 31) { |
3543 |
case PPC_63_FDIV: |
3544 |
case PPC_63_FSUB: |
3545 |
case PPC_63_FADD: |
3546 |
switch (xo & 31) { |
3547 |
case PPC_63_FDIV: ic->f = instr(fdiv); break; |
3548 |
case PPC_63_FSUB: ic->f = instr(fsub); break; |
3549 |
case PPC_63_FADD: ic->f = instr(fadd); break; |
3550 |
} |
3551 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3552 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3553 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3554 |
break; |
3555 |
case PPC_63_FMUL: |
3556 |
ic->f = instr(fmul); |
3557 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3558 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3559 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rs]); /* frc */ |
3560 |
break; |
3561 |
case PPC_63_FMSUB: |
3562 |
case PPC_63_FMADD: |
3563 |
switch (xo & 31) { |
3564 |
case PPC_63_FMSUB: ic->f = instr(fmsub); break; |
3565 |
case PPC_63_FMADD: ic->f = instr(fmadd); break; |
3566 |
} |
3567 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3568 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3569 |
ic->arg[2] = iword; |
3570 |
break; |
3571 |
default:/* Use all 10 bits of xo: */ |
3572 |
switch (xo) { |
3573 |
case PPC_63_FCMPU: |
3574 |
ic->f = instr(fcmpu); |
3575 |
ic->arg[0] = 28 - 4*(rt >> 2); |
3576 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[ra]); |
3577 |
ic->arg[2] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3578 |
break; |
3579 |
case PPC_63_FRSP: |
3580 |
case PPC_63_FCTIWZ: |
3581 |
case PPC_63_FNEG: |
3582 |
case PPC_63_FMR: |
3583 |
switch (xo) { |
3584 |
case PPC_63_FRSP: ic->f = instr(frsp); break; |
3585 |
case PPC_63_FCTIWZ: ic->f = instr(fctiwz);break; |
3586 |
case PPC_63_FNEG: ic->f = instr(fneg); break; |
3587 |
case PPC_63_FMR: ic->f = instr(fmr); break; |
3588 |
} |
3589 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3590 |
ic->arg[1] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3591 |
break; |
3592 |
case PPC_63_MFFS: |
3593 |
ic->f = instr(mffs); |
3594 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rt]); |
3595 |
break; |
3596 |
case PPC_63_MTFSF: |
3597 |
ic->f = instr(mtfsf); |
3598 |
ic->arg[0] = (size_t)(&cpu->cd.ppc.fpr[rb]); |
3599 |
ic->arg[1] = 0; |
3600 |
for (bi=7; bi>=0; bi--) { |
3601 |
ic->arg[1] <<= 8; |
3602 |
if (iword & (1 << (17+bi))) |
3603 |
ic->arg[1] |= 0xf; |
3604 |
} |
3605 |
break; |
3606 |
default:goto bad; |
3607 |
} |
3608 |
} |
3609 |
break; |
3610 |
|
3611 |
default:goto bad; |
3612 |
} |
3613 |
|
3614 |
|
3615 |
#define DYNTRANS_TO_BE_TRANSLATED_TAIL |
3616 |
#include "cpu_dyntrans.c" |
3617 |
#undef DYNTRANS_TO_BE_TRANSLATED_TAIL |
3618 |
} |
3619 |
|