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dpavlin |
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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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dpavlin |
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* $Id: cpu_ppc.c,v 1.35 2005/11/24 01:15:06 debug Exp $ |
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dpavlin |
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* |
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* PowerPC/POWER CPU emulation. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include "cpu.h" |
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#include "devices.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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#include "opcodes_ppc.h" |
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dpavlin |
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#include "ppc_bat.h" |
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#include "ppc_pte.h" |
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#include "ppc_spr.h" |
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#include "ppc_spr_strings.h" |
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dpavlin |
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#include "symbol.h" |
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#define DYNTRANS_DUALMODE_32 |
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#include "tmp_ppc_head.c" |
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dpavlin |
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void ppc_pc_to_pointers(struct cpu *); |
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void ppc32_pc_to_pointers(struct cpu *); |
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dpavlin |
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/* |
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* ppc_cpu_new(): |
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* |
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* Create a new PPC cpu object. |
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* |
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* Returns 1 on success, 0 if there was no matching PPC processor with |
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* this cpu_type_name. |
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*/ |
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int ppc_cpu_new(struct cpu *cpu, struct memory *mem, struct machine *machine, |
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int cpu_id, char *cpu_type_name) |
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{ |
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int any_cache = 0; |
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int i, found; |
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struct ppc_cpu_type_def cpu_type_defs[] = PPC_CPU_TYPE_DEFS; |
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/* Scan the cpu_type_defs list for this cpu type: */ |
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i = 0; |
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found = -1; |
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while (i >= 0 && cpu_type_defs[i].name != NULL) { |
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if (strcasecmp(cpu_type_defs[i].name, cpu_type_name) == 0) { |
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found = i; |
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break; |
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} |
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i++; |
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} |
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if (found == -1) |
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return 0; |
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cpu->memory_rw = ppc_memory_rw; |
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cpu->cd.ppc.cpu_type = cpu_type_defs[found]; |
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cpu->name = cpu->cd.ppc.cpu_type.name; |
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cpu->byte_order = EMUL_BIG_ENDIAN; |
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cpu->cd.ppc.mode = MODE_PPC; /* TODO */ |
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/* Current operating mode: */ |
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cpu->cd.ppc.bits = cpu->cd.ppc.cpu_type.bits; |
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dpavlin |
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cpu->cd.ppc.spr[SPR_PVR] = cpu->cd.ppc.cpu_type.pvr; |
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dpavlin |
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cpu->is_32bit = (cpu->cd.ppc.bits == 32)? 1 : 0; |
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if (cpu->is_32bit) { |
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cpu->update_translation_table = ppc32_update_translation_table; |
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dpavlin |
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cpu->invalidate_translation_caches = |
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ppc32_invalidate_translation_caches; |
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dpavlin |
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cpu->invalidate_code_translation = |
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ppc32_invalidate_code_translation; |
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} else { |
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cpu->update_translation_table = ppc_update_translation_table; |
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dpavlin |
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cpu->invalidate_translation_caches = |
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ppc_invalidate_translation_caches; |
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dpavlin |
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cpu->invalidate_code_translation = |
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ppc_invalidate_code_translation; |
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} |
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cpu->translate_address = ppc_translate_address; |
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/* Only show name and caches etc for CPU nr 0 (in SMP machines): */ |
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if (cpu_id == 0) { |
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debug("%s", cpu->cd.ppc.cpu_type.name); |
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if (cpu->cd.ppc.cpu_type.icache_shift != 0) |
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any_cache = 1; |
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if (cpu->cd.ppc.cpu_type.dcache_shift != 0) |
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any_cache = 1; |
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if (cpu->cd.ppc.cpu_type.l2cache_shift != 0) |
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any_cache = 1; |
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if (any_cache) { |
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debug(" (I+D = %i+%i KB", |
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(int)(1 << (cpu->cd.ppc.cpu_type.icache_shift-10)), |
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(int)(1 << (cpu->cd.ppc.cpu_type.dcache_shift-10))); |
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if (cpu->cd.ppc.cpu_type.l2cache_shift != 0) { |
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debug(", L2 = %i KB", |
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(int)(1 << (cpu->cd.ppc.cpu_type. |
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l2cache_shift-10))); |
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} |
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debug(")"); |
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} |
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} |
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dpavlin |
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cpu->cd.ppc.spr[SPR_PIR] = cpu_id; |
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dpavlin |
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/* Some default stack pointer value. TODO: move this? */ |
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cpu->cd.ppc.gpr[1] = machine->physical_ram_in_mb * 1048576 - 4096; |
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/* |
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* NOTE/TODO: Ugly hack for OpenFirmware emulation: |
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*/ |
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if (cpu->machine->prom_emulation) |
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cpu->cd.ppc.of_emul_addr = 0xfff00000; |
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return 1; |
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} |
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/* |
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* ppc_cpu_list_available_types(): |
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* |
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* Print a list of available PPC CPU types. |
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*/ |
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void ppc_cpu_list_available_types(void) |
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{ |
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int i, j; |
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struct ppc_cpu_type_def tdefs[] = PPC_CPU_TYPE_DEFS; |
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i = 0; |
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while (tdefs[i].name != NULL) { |
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debug("%s", tdefs[i].name); |
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for (j=10 - strlen(tdefs[i].name); j>0; j--) |
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debug(" "); |
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i++; |
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if ((i % 6) == 0 || tdefs[i].name == NULL) |
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debug("\n"); |
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} |
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} |
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/* |
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* ppc_cpu_dumpinfo(): |
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*/ |
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void ppc_cpu_dumpinfo(struct cpu *cpu) |
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{ |
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struct ppc_cpu_type_def *ct = &cpu->cd.ppc.cpu_type; |
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debug(" (%i-bit ", cpu->cd.ppc.bits); |
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switch (cpu->cd.ppc.mode) { |
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case MODE_PPC: |
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debug("PPC"); |
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break; |
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case MODE_POWER: |
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debug("POWER"); |
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break; |
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default: |
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debug("_INTERNAL ERROR_"); |
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} |
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debug(", I+D = %i+%i KB", |
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(1 << ct->icache_shift) / 1024, |
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(1 << ct->dcache_shift) / 1024); |
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if (ct->l2cache_shift) { |
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int kb = (1 << ct->l2cache_shift) / 1024; |
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debug(", L2 = %i %cB", |
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kb >= 1024? kb / 1024 : kb, |
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kb >= 1024? 'M' : 'K'); |
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} |
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debug(")\n"); |
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} |
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/* |
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* reg_access_msr(): |
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*/ |
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dpavlin |
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void reg_access_msr(struct cpu *cpu, uint64_t *valuep, int writeflag, |
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int check_for_interrupts) |
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dpavlin |
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{ |
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dpavlin |
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uint64_t old = cpu->cd.ppc.msr; |
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dpavlin |
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if (valuep == NULL) { |
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fatal("reg_access_msr(): NULL\n"); |
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return; |
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} |
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dpavlin |
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if (writeflag) { |
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dpavlin |
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cpu->cd.ppc.msr = *valuep; |
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dpavlin |
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/* Switching between temporary and real gpr 0..3? */ |
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if ((old & PPC_MSR_TGPR) != (cpu->cd.ppc.msr & PPC_MSR_TGPR)) { |
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int i; |
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for (i=0; i<PPC_N_TGPRS; i++) { |
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uint64_t t = cpu->cd.ppc.gpr[i]; |
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cpu->cd.ppc.gpr[i] = cpu->cd.ppc.tgpr[i]; |
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cpu->cd.ppc.tgpr[i] = t; |
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} |
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} |
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if (cpu->cd.ppc.msr & PPC_MSR_IP) { |
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fatal("\n[ Reboot hack for NetBSD/prep. TODO: " |
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"fix this. ]\n"); |
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cpu->running = 0; |
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} |
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} |
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dpavlin |
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/* TODO: Is the little-endian bit writable? */ |
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cpu->cd.ppc.msr &= ~PPC_MSR_LE; |
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if (cpu->byte_order != EMUL_BIG_ENDIAN) |
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cpu->cd.ppc.msr |= PPC_MSR_LE; |
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if (!writeflag) |
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*valuep = cpu->cd.ppc.msr; |
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dpavlin |
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if (check_for_interrupts && cpu->cd.ppc.msr & PPC_MSR_EE) { |
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if (cpu->cd.ppc.dec_intr_pending) { |
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ppc_exception(cpu, PPC_EXCEPTION_DEC); |
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cpu->cd.ppc.dec_intr_pending = 0; |
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} else if (cpu->cd.ppc.irq_asserted) |
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ppc_exception(cpu, PPC_EXCEPTION_EI); |
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} |
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dpavlin |
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} |
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/* |
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dpavlin |
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* ppc_exception(): |
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*/ |
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void ppc_exception(struct cpu *cpu, int exception_nr) |
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{ |
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/* Save PC and MSR: */ |
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cpu->cd.ppc.spr[SPR_SRR0] = cpu->pc; |
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if (exception_nr >= 0x10 && exception_nr <= 0x13) |
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cpu->cd.ppc.spr[SPR_SRR1] = (cpu->cd.ppc.msr & 0xffff) |
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| (cpu->cd.ppc.cr & 0xf0000000); |
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else |
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cpu->cd.ppc.spr[SPR_SRR1] = (cpu->cd.ppc.msr & 0x87c0ffff); |
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if (!quiet_mode) |
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fatal("[ PPC Exception 0x%x; pc=0x%llx ]\n", exception_nr, |
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(long long)cpu->pc); |
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/* Disable External Interrupts, Recoverable Interrupt Mode, |
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and go to Supervisor mode */ |
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cpu->cd.ppc.msr &= ~(PPC_MSR_EE | PPC_MSR_RI | PPC_MSR_PR); |
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cpu->pc = exception_nr * 0x100; |
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if (cpu->cd.ppc.msr & PPC_MSR_IP) |
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cpu->pc += 0xfff00000; |
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if (cpu->is_32bit) |
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ppc32_pc_to_pointers(cpu); |
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else |
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ppc_pc_to_pointers(cpu); |
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} |
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/* |
297 |
dpavlin |
14 |
* ppc_cpu_register_dump(): |
298 |
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* |
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* Dump cpu registers in a relatively readable format. |
300 |
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* |
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* gprs: set to non-zero to dump GPRs and some special-purpose registers. |
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* coprocs: if bit i is set, then we should dump registers from coproc i. |
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*/ |
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void ppc_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs) |
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{ |
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char *symbol; |
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uint64_t offset, tmp; |
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int i, x = cpu->cpu_id; |
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int bits32 = cpu->cd.ppc.bits == 32; |
310 |
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311 |
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if (gprs) { |
312 |
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/* Special registers (pc, ...) first: */ |
313 |
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symbol = get_symbol_name(&cpu->machine->symbol_context, |
314 |
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cpu->pc, &offset); |
315 |
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316 |
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debug("cpu%i: pc = 0x", x); |
317 |
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if (bits32) |
318 |
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debug("%08x", (int)cpu->pc); |
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else |
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debug("%016llx", (long long)cpu->pc); |
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debug(" <%s>\n", symbol != NULL? symbol : " no symbol "); |
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323 |
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debug("cpu%i: lr = 0x", x); |
324 |
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if (bits32) |
325 |
dpavlin |
20 |
debug("%08x", (int)cpu->cd.ppc.spr[SPR_LR]); |
326 |
dpavlin |
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else |
327 |
dpavlin |
20 |
debug("%016llx", (long long)cpu->cd.ppc.spr[SPR_LR]); |
328 |
dpavlin |
14 |
debug(" cr = 0x%08x\n", (int)cpu->cd.ppc.cr); |
329 |
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330 |
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debug("cpu%i: ctr = 0x", x); |
331 |
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if (bits32) |
332 |
dpavlin |
20 |
debug("%08x", (int)cpu->cd.ppc.spr[SPR_CTR]); |
333 |
dpavlin |
14 |
else |
334 |
dpavlin |
20 |
debug("%016llx", (long long)cpu->cd.ppc.spr[SPR_CTR]); |
335 |
dpavlin |
14 |
|
336 |
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debug(" xer = 0x", x); |
337 |
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if (bits32) |
338 |
dpavlin |
20 |
debug("%08x\n", (int)cpu->cd.ppc.spr[SPR_XER]); |
339 |
dpavlin |
14 |
else |
340 |
dpavlin |
20 |
debug("%016llx\n", (long long)cpu->cd.ppc.spr[SPR_XER]); |
341 |
dpavlin |
14 |
|
342 |
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if (bits32) { |
343 |
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/* 32-bit: */ |
344 |
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for (i=0; i<PPC_NGPRS; i++) { |
345 |
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if ((i % 4) == 0) |
346 |
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debug("cpu%i:", x); |
347 |
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debug(" r%02i = 0x%08x ", i, |
348 |
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(int)cpu->cd.ppc.gpr[i]); |
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if ((i % 4) == 3) |
350 |
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debug("\n"); |
351 |
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} |
352 |
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} else { |
353 |
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/* 64-bit: */ |
354 |
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for (i=0; i<PPC_NGPRS; i++) { |
355 |
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int r = (i >> 1) + ((i & 1) << 4); |
356 |
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if ((i % 2) == 0) |
357 |
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debug("cpu%i:", x); |
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debug(" r%02i = 0x%016llx ", r, |
359 |
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(long long)cpu->cd.ppc.gpr[r]); |
360 |
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if ((i % 2) == 1) |
361 |
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debug("\n"); |
362 |
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} |
363 |
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} |
364 |
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365 |
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/* Other special registers: */ |
366 |
|
|
debug("cpu%i: srr0 = 0x%016llx srr1 = 0x%016llx\n", x, |
367 |
dpavlin |
20 |
(long long)cpu->cd.ppc.spr[SPR_SRR0], |
368 |
|
|
(long long)cpu->cd.ppc.spr[SPR_SRR1]); |
369 |
|
|
reg_access_msr(cpu, &tmp, 0, 0); |
370 |
dpavlin |
14 |
debug("cpu%i: msr = 0x%016llx ", x, (long long)tmp); |
371 |
dpavlin |
20 |
debug("tb = 0x%08x%08x\n", (int)cpu->cd.ppc.spr[SPR_TBU], |
372 |
|
|
(int)cpu->cd.ppc.spr[SPR_TBL]); |
373 |
dpavlin |
14 |
debug("cpu%i: dec = 0x%08x hdec = 0x%08x\n", |
374 |
dpavlin |
20 |
x, (int)cpu->cd.ppc.spr[SPR_DEC], |
375 |
|
|
(int)cpu->cd.ppc.spr[SPR_HDEC]); |
376 |
dpavlin |
14 |
} |
377 |
|
|
|
378 |
|
|
if (coprocs & 1) { |
379 |
|
|
debug("cpu%i: fpscr = 0x%08x\n", x, (int)cpu->cd.ppc.fpscr); |
380 |
|
|
|
381 |
|
|
/* TODO: show floating-point values :-) */ |
382 |
|
|
|
383 |
|
|
/* TODO: 32-bit fprs on 32-bit PPC cpus? */ |
384 |
|
|
|
385 |
|
|
for (i=0; i<PPC_NFPRS; i++) { |
386 |
|
|
if ((i % 2) == 0) |
387 |
|
|
debug("cpu%i:", x); |
388 |
|
|
debug(" f%02i = 0x%016llx ", i, |
389 |
|
|
(long long)cpu->cd.ppc.fpr[i]); |
390 |
|
|
if ((i % 2) == 1) |
391 |
|
|
debug("\n"); |
392 |
|
|
} |
393 |
|
|
} |
394 |
|
|
|
395 |
|
|
if (coprocs & 2) { |
396 |
|
|
debug("cpu%i: sdr1 = 0x%llx\n", x, |
397 |
dpavlin |
20 |
(long long)cpu->cd.ppc.spr[SPR_SDR1]); |
398 |
|
|
if (cpu->cd.ppc.cpu_type.flags & PPC_601) |
399 |
|
|
debug("cpu%i: PPC601-style, TODO!\n"); |
400 |
|
|
else { |
401 |
|
|
for (i=0; i<8; i++) { |
402 |
|
|
int spr = SPR_IBAT0U + i*2; |
403 |
|
|
uint32_t upper = cpu->cd.ppc.spr[spr]; |
404 |
|
|
uint32_t lower = cpu->cd.ppc.spr[spr+1]; |
405 |
|
|
uint32_t len = (((upper & BAT_BL) << 15) |
406 |
|
|
| 0x1ffff) + 1; |
407 |
|
|
debug("cpu%i: %sbat%i: u=0x%08x l=0x%08x ", |
408 |
|
|
x, i<4? "i" : "d", i&3, upper, lower); |
409 |
|
|
if (!(upper & BAT_V)) { |
410 |
|
|
debug(" (not valid)\n"); |
411 |
|
|
continue; |
412 |
|
|
} |
413 |
|
|
if (len < 1048576) |
414 |
|
|
debug(" (%i KB, ", len >> 10); |
415 |
|
|
else |
416 |
|
|
debug(" (%i MB, ", len >> 20); |
417 |
|
|
if (upper & BAT_Vu) |
418 |
|
|
debug("user, "); |
419 |
|
|
if (upper & BAT_Vs) |
420 |
|
|
debug("supervisor, "); |
421 |
|
|
if (lower & (BAT_W | BAT_I | BAT_M | BAT_G)) |
422 |
|
|
debug("%s%s%s%s, ", |
423 |
|
|
lower & BAT_W? "W" : "", |
424 |
|
|
lower & BAT_I? "I" : "", |
425 |
|
|
lower & BAT_M? "M" : "", |
426 |
|
|
lower & BAT_G? "G" : ""); |
427 |
|
|
switch (lower & BAT_PP) { |
428 |
|
|
case BAT_PP_NONE: debug("NO access"); break; |
429 |
|
|
case BAT_PP_RO_S: debug("read-only, soft"); |
430 |
|
|
break; |
431 |
|
|
case BAT_PP_RO: debug("read-only"); break; |
432 |
|
|
case BAT_PP_RW: debug("read/write"); break; |
433 |
|
|
} |
434 |
|
|
debug(")\n"); |
435 |
|
|
} |
436 |
|
|
} |
437 |
dpavlin |
14 |
} |
438 |
dpavlin |
20 |
|
439 |
|
|
if (coprocs & 4) { |
440 |
|
|
for (i=0; i<16; i++) { |
441 |
|
|
uint32_t s = cpu->cd.ppc.sr[i]; |
442 |
|
|
debug("cpu%i:", x); |
443 |
|
|
debug(" sr%2i = 0x%08x", i, (int)s); |
444 |
|
|
s &= (SR_TYPE | SR_SUKEY | SR_PRKEY | SR_NOEXEC); |
445 |
|
|
if (s != 0) { |
446 |
|
|
debug(" ("); |
447 |
|
|
if (s & SR_TYPE) { |
448 |
|
|
debug("NON-memory type"); |
449 |
|
|
s &= ~SR_TYPE; |
450 |
|
|
if (s != 0) |
451 |
|
|
debug(", "); |
452 |
|
|
} |
453 |
|
|
if (s & SR_SUKEY) { |
454 |
|
|
debug("supervisor-key"); |
455 |
|
|
s &= ~SR_SUKEY; |
456 |
|
|
if (s != 0) |
457 |
|
|
debug(", "); |
458 |
|
|
} |
459 |
|
|
if (s & SR_PRKEY) { |
460 |
|
|
debug("user-key"); |
461 |
|
|
s &= ~SR_PRKEY; |
462 |
|
|
if (s != 0) |
463 |
|
|
debug(", "); |
464 |
|
|
} |
465 |
|
|
if (s & SR_NOEXEC) |
466 |
|
|
debug("NOEXEC"); |
467 |
|
|
debug(")"); |
468 |
|
|
} |
469 |
|
|
debug("\n"); |
470 |
|
|
} |
471 |
|
|
} |
472 |
dpavlin |
14 |
} |
473 |
|
|
|
474 |
|
|
|
475 |
|
|
/* |
476 |
|
|
* ppc_cpu_register_match(): |
477 |
|
|
*/ |
478 |
|
|
void ppc_cpu_register_match(struct machine *m, char *name, |
479 |
|
|
int writeflag, uint64_t *valuep, int *match_register) |
480 |
|
|
{ |
481 |
|
|
int cpunr = 0; |
482 |
|
|
|
483 |
|
|
/* CPU number: */ |
484 |
|
|
|
485 |
|
|
/* TODO */ |
486 |
|
|
|
487 |
|
|
/* Register name: */ |
488 |
|
|
if (strcasecmp(name, "pc") == 0) { |
489 |
|
|
if (writeflag) { |
490 |
|
|
m->cpus[cpunr]->pc = *valuep; |
491 |
|
|
} else |
492 |
|
|
*valuep = m->cpus[cpunr]->pc; |
493 |
|
|
*match_register = 1; |
494 |
|
|
} else if (strcasecmp(name, "msr") == 0) { |
495 |
|
|
if (writeflag) |
496 |
|
|
m->cpus[cpunr]->cd.ppc.msr = *valuep; |
497 |
|
|
else |
498 |
|
|
*valuep = m->cpus[cpunr]->cd.ppc.msr; |
499 |
|
|
*match_register = 1; |
500 |
|
|
} else if (strcasecmp(name, "lr") == 0) { |
501 |
|
|
if (writeflag) |
502 |
dpavlin |
20 |
m->cpus[cpunr]->cd.ppc.spr[SPR_LR] = *valuep; |
503 |
dpavlin |
14 |
else |
504 |
dpavlin |
20 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_LR]; |
505 |
dpavlin |
14 |
*match_register = 1; |
506 |
|
|
} else if (strcasecmp(name, "cr") == 0) { |
507 |
|
|
if (writeflag) |
508 |
|
|
m->cpus[cpunr]->cd.ppc.cr = *valuep; |
509 |
|
|
else |
510 |
|
|
*valuep = m->cpus[cpunr]->cd.ppc.cr; |
511 |
|
|
*match_register = 1; |
512 |
|
|
} else if (strcasecmp(name, "dec") == 0) { |
513 |
|
|
if (writeflag) |
514 |
dpavlin |
20 |
m->cpus[cpunr]->cd.ppc.spr[SPR_DEC] = *valuep; |
515 |
dpavlin |
14 |
else |
516 |
dpavlin |
20 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_DEC]; |
517 |
dpavlin |
14 |
*match_register = 1; |
518 |
|
|
} else if (strcasecmp(name, "hdec") == 0) { |
519 |
|
|
if (writeflag) |
520 |
dpavlin |
20 |
m->cpus[cpunr]->cd.ppc.spr[SPR_HDEC] = *valuep; |
521 |
dpavlin |
14 |
else |
522 |
dpavlin |
20 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_HDEC]; |
523 |
dpavlin |
14 |
*match_register = 1; |
524 |
|
|
} else if (strcasecmp(name, "ctr") == 0) { |
525 |
|
|
if (writeflag) |
526 |
dpavlin |
20 |
m->cpus[cpunr]->cd.ppc.spr[SPR_CTR] = *valuep; |
527 |
dpavlin |
14 |
else |
528 |
dpavlin |
20 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_CTR]; |
529 |
dpavlin |
14 |
*match_register = 1; |
530 |
|
|
} else if (name[0] == 'r' && isdigit((int)name[1])) { |
531 |
|
|
int nr = atoi(name + 1); |
532 |
|
|
if (nr >= 0 && nr < PPC_NGPRS) { |
533 |
|
|
if (writeflag) { |
534 |
|
|
m->cpus[cpunr]->cd.ppc.gpr[nr] = *valuep; |
535 |
|
|
} else |
536 |
|
|
*valuep = m->cpus[cpunr]->cd.ppc.gpr[nr]; |
537 |
|
|
*match_register = 1; |
538 |
|
|
} |
539 |
|
|
} else if (strcasecmp(name, "xer") == 0) { |
540 |
|
|
if (writeflag) |
541 |
dpavlin |
20 |
m->cpus[cpunr]->cd.ppc.spr[SPR_XER] = *valuep; |
542 |
dpavlin |
14 |
else |
543 |
dpavlin |
20 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_XER]; |
544 |
dpavlin |
14 |
*match_register = 1; |
545 |
|
|
} else if (strcasecmp(name, "fpscr") == 0) { |
546 |
|
|
if (writeflag) |
547 |
|
|
m->cpus[cpunr]->cd.ppc.fpscr = *valuep; |
548 |
|
|
else |
549 |
|
|
*valuep = m->cpus[cpunr]->cd.ppc.fpscr; |
550 |
|
|
*match_register = 1; |
551 |
|
|
} else if (name[0] == 'f' && isdigit((int)name[1])) { |
552 |
|
|
int nr = atoi(name + 1); |
553 |
|
|
if (nr >= 0 && nr < PPC_NFPRS) { |
554 |
|
|
if (writeflag) { |
555 |
|
|
m->cpus[cpunr]->cd.ppc.fpr[nr] = *valuep; |
556 |
|
|
} else |
557 |
|
|
*valuep = m->cpus[cpunr]->cd.ppc.fpr[nr]; |
558 |
|
|
*match_register = 1; |
559 |
|
|
} |
560 |
|
|
} |
561 |
|
|
} |
562 |
|
|
|
563 |
|
|
|
564 |
|
|
/* |
565 |
dpavlin |
20 |
* ppc_cpu_interrupt(): |
566 |
dpavlin |
14 |
* |
567 |
dpavlin |
20 |
* 0..31 are used as BeBox interrupt numbers, 32..47 = ISA, |
568 |
|
|
* 64 is used as a "re-assert" signal to cpu->machine->md_interrupt(). |
569 |
dpavlin |
14 |
* |
570 |
dpavlin |
20 |
* TODO: don't hardcode to BeBox! |
571 |
dpavlin |
14 |
*/ |
572 |
|
|
int ppc_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr) |
573 |
|
|
{ |
574 |
dpavlin |
20 |
/* fatal("ppc_cpu_interrupt(): 0x%x\n", (int)irq_nr); */ |
575 |
|
|
if (irq_nr <= 64) { |
576 |
|
|
if (cpu->machine->md_interrupt != NULL) |
577 |
|
|
cpu->machine->md_interrupt( |
578 |
|
|
cpu->machine, cpu, irq_nr, 1); |
579 |
|
|
else |
580 |
|
|
fatal("ppc_cpu_interrupt(): md_interrupt == NULL\n"); |
581 |
|
|
} else { |
582 |
|
|
/* Assert PPC IRQ: */ |
583 |
|
|
cpu->cd.ppc.irq_asserted = 1; |
584 |
|
|
} |
585 |
|
|
return 1; |
586 |
dpavlin |
14 |
} |
587 |
|
|
|
588 |
|
|
|
589 |
|
|
/* |
590 |
|
|
* ppc_cpu_interrupt_ack(): |
591 |
|
|
*/ |
592 |
|
|
int ppc_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr) |
593 |
|
|
{ |
594 |
dpavlin |
20 |
if (irq_nr <= 64) { |
595 |
|
|
if (cpu->machine->md_interrupt != NULL) |
596 |
|
|
cpu->machine->md_interrupt(cpu->machine, |
597 |
|
|
cpu, irq_nr, 0); |
598 |
|
|
} else { |
599 |
|
|
/* De-assert PPC IRQ: */ |
600 |
|
|
cpu->cd.ppc.irq_asserted = 0; |
601 |
|
|
} |
602 |
|
|
return 1; |
603 |
dpavlin |
14 |
} |
604 |
|
|
|
605 |
|
|
|
606 |
|
|
/* |
607 |
|
|
* ppc_cpu_disassemble_instr(): |
608 |
|
|
* |
609 |
|
|
* Convert an instruction word into human readable format, for instruction |
610 |
|
|
* tracing. |
611 |
|
|
* |
612 |
|
|
* If running is 1, cpu->pc should be the address of the instruction. |
613 |
|
|
* |
614 |
|
|
* If running is 0, things that depend on the runtime environment (eg. |
615 |
|
|
* register contents) will not be shown, and addr will be used instead of |
616 |
|
|
* cpu->pc for relative addresses. |
617 |
|
|
*/ |
618 |
|
|
int ppc_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
619 |
|
|
int running, uint64_t dumpaddr, int bintrans) |
620 |
|
|
{ |
621 |
|
|
int hi6, xo, lev, rt, rs, ra, rb, imm, sh, me, rc, l_bit, oe_bit; |
622 |
|
|
int spr, aa_bit, lk_bit, bf, bh, bi, bo, mb, nb, bt, ba, bb, fpreg; |
623 |
|
|
int bfa, to, load, wlen, no_rb = 0; |
624 |
|
|
uint64_t offset, addr; |
625 |
|
|
uint32_t iword; |
626 |
|
|
char *symbol, *mnem = "ERROR"; |
627 |
|
|
int power = cpu->cd.ppc.mode == MODE_POWER; |
628 |
|
|
|
629 |
|
|
if (running) |
630 |
|
|
dumpaddr = cpu->pc; |
631 |
|
|
|
632 |
|
|
symbol = get_symbol_name(&cpu->machine->symbol_context, |
633 |
|
|
dumpaddr, &offset); |
634 |
|
|
if (symbol != NULL && offset==0) |
635 |
|
|
debug("<%s>\n", symbol); |
636 |
|
|
|
637 |
|
|
if (cpu->machine->ncpus > 1 && running) |
638 |
|
|
debug("cpu%i: ", cpu->cpu_id); |
639 |
|
|
|
640 |
|
|
if (cpu->cd.ppc.bits == 32) |
641 |
|
|
debug("%08x", (int)dumpaddr); |
642 |
|
|
else |
643 |
|
|
debug("%016llx", (long long)dumpaddr); |
644 |
|
|
|
645 |
|
|
/* NOTE: Fixed to big-endian. */ |
646 |
|
|
iword = (instr[0] << 24) + (instr[1] << 16) + (instr[2] << 8) |
647 |
|
|
+ instr[3]; |
648 |
|
|
|
649 |
|
|
debug(": %08x\t", iword); |
650 |
|
|
|
651 |
|
|
/* |
652 |
|
|
* Decode the instruction: |
653 |
|
|
*/ |
654 |
|
|
|
655 |
|
|
hi6 = iword >> 26; |
656 |
|
|
|
657 |
|
|
switch (hi6) { |
658 |
|
|
case PPC_HI6_MULLI: |
659 |
|
|
case PPC_HI6_SUBFIC: |
660 |
|
|
rt = (iword >> 21) & 31; |
661 |
|
|
ra = (iword >> 16) & 31; |
662 |
|
|
imm = (int16_t)(iword & 0xffff); |
663 |
|
|
switch (hi6) { |
664 |
|
|
case PPC_HI6_MULLI: |
665 |
|
|
mnem = power? "muli":"mulli"; |
666 |
|
|
break; |
667 |
|
|
case PPC_HI6_SUBFIC: |
668 |
|
|
mnem = power? "sfi":"subfic"; |
669 |
|
|
break; |
670 |
|
|
} |
671 |
|
|
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
672 |
|
|
break; |
673 |
|
|
case PPC_HI6_CMPLI: |
674 |
|
|
case PPC_HI6_CMPI: |
675 |
|
|
bf = (iword >> 23) & 7; |
676 |
|
|
l_bit = (iword >> 21) & 1; |
677 |
|
|
ra = (iword >> 16) & 31; |
678 |
|
|
if (hi6 == PPC_HI6_CMPLI) { |
679 |
|
|
imm = iword & 0xffff; |
680 |
|
|
mnem = "cmpl"; |
681 |
|
|
} else { |
682 |
|
|
imm = (int16_t)(iword & 0xffff); |
683 |
|
|
mnem = "cmp"; |
684 |
|
|
} |
685 |
|
|
debug("%s%si\t", mnem, l_bit? "d" : "w"); |
686 |
|
|
if (bf != 0) |
687 |
|
|
debug("cr%i,", bf); |
688 |
|
|
debug("r%i,%i", ra, imm); |
689 |
|
|
break; |
690 |
|
|
case PPC_HI6_ADDIC: |
691 |
|
|
case PPC_HI6_ADDIC_DOT: |
692 |
|
|
rt = (iword >> 21) & 31; |
693 |
|
|
ra = (iword >> 16) & 31; |
694 |
|
|
rc = hi6 == PPC_HI6_ADDIC_DOT; |
695 |
|
|
imm = (int16_t)(iword & 0xffff); |
696 |
|
|
mnem = power? "ai":"addic"; |
697 |
|
|
if (imm < 0 && !power) { |
698 |
|
|
mnem = "subic"; |
699 |
|
|
imm = -imm; |
700 |
|
|
} |
701 |
|
|
debug("%s%s\tr%i,r%i,%i", mnem, rc?".":"", rt, ra, imm); |
702 |
|
|
break; |
703 |
|
|
case PPC_HI6_ADDI: |
704 |
|
|
rt = (iword >> 21) & 31; |
705 |
|
|
ra = (iword >> 16) & 31; |
706 |
|
|
imm = (int16_t)(iword & 0xffff); |
707 |
|
|
if (ra == 0) |
708 |
|
|
debug("li\tr%i,%i", rt, imm); |
709 |
|
|
else { |
710 |
|
|
mnem = power? "cal":"addi"; |
711 |
|
|
if (imm < 0 && !power) { |
712 |
|
|
mnem = "subi"; |
713 |
|
|
imm = -imm; |
714 |
|
|
} |
715 |
|
|
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
716 |
|
|
} |
717 |
|
|
break; |
718 |
|
|
case PPC_HI6_ADDIS: |
719 |
|
|
rt = (iword >> 21) & 31; |
720 |
|
|
ra = (iword >> 16) & 31; |
721 |
|
|
imm = (int16_t)(iword & 0xffff); |
722 |
|
|
if (ra == 0) |
723 |
|
|
debug("lis\tr%i,%i", rt, imm); |
724 |
|
|
else |
725 |
|
|
debug("%s\tr%i,r%i,%i", |
726 |
|
|
power? "cau":"addis", rt, ra, imm); |
727 |
|
|
break; |
728 |
|
|
case PPC_HI6_BC: |
729 |
|
|
aa_bit = (iword & 2) >> 1; |
730 |
|
|
lk_bit = iword & 1; |
731 |
|
|
bo = (iword >> 21) & 31; |
732 |
|
|
bi = (iword >> 16) & 31; |
733 |
|
|
/* Sign-extend addr: */ |
734 |
|
|
addr = (int64_t)(int16_t)(iword & 0xfffc); |
735 |
|
|
debug("bc"); |
736 |
|
|
if (lk_bit) |
737 |
|
|
debug("l"); |
738 |
|
|
if (aa_bit) |
739 |
|
|
debug("a"); |
740 |
|
|
else |
741 |
|
|
addr += dumpaddr; |
742 |
|
|
debug("\t%i,%i,", bo, bi); |
743 |
|
|
if (cpu->cd.ppc.bits == 32) |
744 |
|
|
addr &= 0xffffffff; |
745 |
|
|
if (cpu->cd.ppc.bits == 32) |
746 |
|
|
debug("0x%x", (int)addr); |
747 |
|
|
else |
748 |
|
|
debug("0x%llx", (long long)addr); |
749 |
|
|
symbol = get_symbol_name(&cpu->machine->symbol_context, |
750 |
|
|
addr, &offset); |
751 |
|
|
if (symbol != NULL) |
752 |
|
|
debug("\t<%s>", symbol); |
753 |
|
|
break; |
754 |
|
|
case PPC_HI6_SC: |
755 |
|
|
lev = (iword >> 5) & 0x7f; |
756 |
|
|
debug("sc"); |
757 |
|
|
if (lev != 0) { |
758 |
|
|
debug("\t%i", lev); |
759 |
|
|
if (lev > 1) |
760 |
|
|
debug(" (WARNING! reserved value)"); |
761 |
|
|
} |
762 |
|
|
break; |
763 |
|
|
case PPC_HI6_B: |
764 |
|
|
aa_bit = (iword & 2) >> 1; |
765 |
|
|
lk_bit = iword & 1; |
766 |
|
|
/* Sign-extend addr: */ |
767 |
|
|
addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
768 |
|
|
addr = (int64_t)addr >> 6; |
769 |
|
|
debug("b"); |
770 |
|
|
if (lk_bit) |
771 |
|
|
debug("l"); |
772 |
|
|
if (aa_bit) |
773 |
|
|
debug("a"); |
774 |
|
|
else |
775 |
|
|
addr += dumpaddr; |
776 |
|
|
if (cpu->cd.ppc.bits == 32) |
777 |
|
|
addr &= 0xffffffff; |
778 |
|
|
if (cpu->cd.ppc.bits == 32) |
779 |
|
|
debug("\t0x%x", (int)addr); |
780 |
|
|
else |
781 |
|
|
debug("\t0x%llx", (long long)addr); |
782 |
|
|
symbol = get_symbol_name(&cpu->machine->symbol_context, |
783 |
|
|
addr, &offset); |
784 |
|
|
if (symbol != NULL) |
785 |
|
|
debug("\t<%s>", symbol); |
786 |
|
|
break; |
787 |
|
|
case PPC_HI6_19: |
788 |
|
|
xo = (iword >> 1) & 1023; |
789 |
|
|
switch (xo) { |
790 |
|
|
case PPC_19_MCRF: |
791 |
|
|
bf = (iword >> 23) & 7; |
792 |
|
|
bfa = (iword >> 18) & 7; |
793 |
|
|
debug("mcrf\tcr%i,cr%i", bf, bfa); |
794 |
|
|
break; |
795 |
|
|
case PPC_19_RFI: |
796 |
|
|
debug("rfi"); |
797 |
|
|
break; |
798 |
|
|
case PPC_19_RFID: |
799 |
|
|
debug("rfid"); |
800 |
|
|
break; |
801 |
|
|
case PPC_19_RFSVC: |
802 |
|
|
debug("rfsvc%s", power?"":"\t(INVALID for PowerPC)"); |
803 |
|
|
break; |
804 |
|
|
case PPC_19_BCLR: |
805 |
|
|
case PPC_19_BCCTR: |
806 |
|
|
bo = (iword >> 21) & 31; |
807 |
|
|
bi = (iword >> 16) & 31; |
808 |
|
|
bh = (iword >> 11) & 3; |
809 |
|
|
lk_bit = iword & 1; |
810 |
|
|
switch (xo) { |
811 |
|
|
case PPC_19_BCLR: |
812 |
|
|
mnem = power? "bcr" : "bclr"; break; |
813 |
|
|
case PPC_19_BCCTR: |
814 |
|
|
mnem = power? "bcc" : "bcctr"; break; |
815 |
|
|
} |
816 |
|
|
debug("%s%s%s\t%i,%i,%i", mnem, lk_bit? "l" : "", |
817 |
|
|
bh? (bh==3? "+" : (bh==2? "-" : "?")) : "", |
818 |
|
|
bo, bi, bh); |
819 |
|
|
break; |
820 |
|
|
case PPC_19_ISYNC: |
821 |
|
|
debug("%s", power? "ics" : "isync"); |
822 |
|
|
break; |
823 |
|
|
case PPC_19_CRAND: |
824 |
|
|
case PPC_19_CRXOR: |
825 |
|
|
case PPC_19_CROR: |
826 |
|
|
case PPC_19_CRNAND: |
827 |
|
|
case PPC_19_CRNOR: |
828 |
|
|
case PPC_19_CRANDC: |
829 |
|
|
case PPC_19_CREQV: |
830 |
|
|
case PPC_19_CRORC: |
831 |
|
|
bt = (iword >> 21) & 31; |
832 |
|
|
ba = (iword >> 16) & 31; |
833 |
|
|
bb = (iword >> 11) & 31; |
834 |
|
|
switch (xo) { |
835 |
|
|
case PPC_19_CRAND: mnem = "crand"; break; |
836 |
|
|
case PPC_19_CRXOR: mnem = "crxor"; break; |
837 |
|
|
case PPC_19_CROR: mnem = "cror"; break; |
838 |
|
|
case PPC_19_CRNAND: mnem = "crnand"; break; |
839 |
|
|
case PPC_19_CRNOR: mnem = "crnor"; break; |
840 |
|
|
case PPC_19_CRANDC: mnem = "crandc"; break; |
841 |
|
|
case PPC_19_CREQV: mnem = "creqv"; break; |
842 |
|
|
case PPC_19_CRORC: mnem = "crorc"; break; |
843 |
|
|
} |
844 |
|
|
debug("%s\t%i,%i,%i", mnem, bt, ba, bb); |
845 |
|
|
break; |
846 |
|
|
default: |
847 |
|
|
debug("unimplemented hi6_19, xo = 0x%x", xo); |
848 |
|
|
} |
849 |
|
|
break; |
850 |
dpavlin |
20 |
case PPC_HI6_RLWNM: |
851 |
dpavlin |
14 |
case PPC_HI6_RLWIMI: |
852 |
|
|
case PPC_HI6_RLWINM: |
853 |
|
|
rs = (iword >> 21) & 31; |
854 |
|
|
ra = (iword >> 16) & 31; |
855 |
dpavlin |
20 |
sh = (iword >> 11) & 31; /* actually rb for rlwnm */ |
856 |
dpavlin |
14 |
mb = (iword >> 6) & 31; |
857 |
|
|
me = (iword >> 1) & 31; |
858 |
|
|
rc = iword & 1; |
859 |
|
|
switch (hi6) { |
860 |
dpavlin |
20 |
case PPC_HI6_RLWNM: |
861 |
|
|
mnem = power? "rlnm" : "rlwnm"; break; |
862 |
dpavlin |
14 |
case PPC_HI6_RLWIMI: |
863 |
|
|
mnem = power? "rlimi" : "rlwimi"; break; |
864 |
|
|
case PPC_HI6_RLWINM: |
865 |
|
|
mnem = power? "rlinm" : "rlwinm"; break; |
866 |
|
|
} |
867 |
dpavlin |
20 |
debug("%s%s\tr%i,r%i,%s%i,%i,%i", |
868 |
|
|
mnem, rc?".":"", ra, rs, |
869 |
|
|
hi6 == PPC_HI6_RLWNM? "r" : "", |
870 |
|
|
sh, mb, me); |
871 |
dpavlin |
14 |
break; |
872 |
|
|
case PPC_HI6_ORI: |
873 |
|
|
case PPC_HI6_ORIS: |
874 |
|
|
case PPC_HI6_XORI: |
875 |
|
|
case PPC_HI6_XORIS: |
876 |
|
|
case PPC_HI6_ANDI_DOT: |
877 |
|
|
case PPC_HI6_ANDIS_DOT: |
878 |
|
|
rs = (iword >> 21) & 31; |
879 |
|
|
ra = (iword >> 16) & 31; |
880 |
|
|
imm = iword & 0xffff; |
881 |
|
|
switch (hi6) { |
882 |
|
|
case PPC_HI6_ORI: |
883 |
|
|
mnem = power? "oril":"ori"; |
884 |
|
|
break; |
885 |
|
|
case PPC_HI6_ORIS: |
886 |
|
|
mnem = power? "oriu":"oris"; |
887 |
|
|
break; |
888 |
|
|
case PPC_HI6_XORI: |
889 |
|
|
mnem = power? "xoril":"xori"; |
890 |
|
|
break; |
891 |
|
|
case PPC_HI6_XORIS: |
892 |
|
|
mnem = power? "xoriu":"xoris"; |
893 |
|
|
break; |
894 |
|
|
case PPC_HI6_ANDI_DOT: |
895 |
|
|
mnem = power? "andil.":"andi."; |
896 |
|
|
break; |
897 |
|
|
case PPC_HI6_ANDIS_DOT: |
898 |
|
|
mnem = power? "andiu.":"andis."; |
899 |
|
|
break; |
900 |
|
|
} |
901 |
|
|
if (hi6 == PPC_HI6_ORI && rs == 0 && ra == 0 && imm == 0) |
902 |
|
|
debug("nop"); |
903 |
|
|
else |
904 |
|
|
debug("%s\tr%i,r%i,0x%04x", mnem, ra, rs, imm); |
905 |
|
|
break; |
906 |
|
|
case PPC_HI6_30: |
907 |
|
|
xo = (iword >> 2) & 7; |
908 |
|
|
switch (xo) { |
909 |
|
|
case PPC_30_RLDICR: |
910 |
|
|
rs = (iword >> 21) & 31; |
911 |
|
|
ra = (iword >> 16) & 31; |
912 |
|
|
sh = ((iword >> 11) & 31) | ((iword & 2) << 4); |
913 |
|
|
me = ((iword >> 6) & 31) | (iword & 0x20); |
914 |
|
|
rc = iword & 1; |
915 |
|
|
debug("rldicr%s\tr%i,r%i,%i,%i", |
916 |
|
|
rc?".":"", ra, rs, sh, me); |
917 |
|
|
break; |
918 |
|
|
default: |
919 |
|
|
debug("unimplemented hi6_30, xo = 0x%x", xo); |
920 |
|
|
} |
921 |
|
|
break; |
922 |
|
|
case PPC_HI6_31: |
923 |
|
|
xo = (iword >> 1) & 1023; |
924 |
|
|
switch (xo) { |
925 |
|
|
|
926 |
|
|
case PPC_31_CMP: |
927 |
|
|
case PPC_31_CMPL: |
928 |
|
|
bf = (iword >> 23) & 7; |
929 |
|
|
l_bit = (iword >> 21) & 1; |
930 |
|
|
ra = (iword >> 16) & 31; |
931 |
|
|
rb = (iword >> 11) & 31; |
932 |
|
|
if (xo == PPC_31_CMPL) |
933 |
|
|
mnem = "cmpl"; |
934 |
|
|
else |
935 |
|
|
mnem = "cmp"; |
936 |
|
|
debug("%s%s\t", mnem, l_bit? "d" : "w"); |
937 |
|
|
if (bf != 0) |
938 |
|
|
debug("cr%i,", bf); |
939 |
|
|
debug("r%i,r%i", ra, rb); |
940 |
|
|
break; |
941 |
|
|
case PPC_31_MFCR: |
942 |
|
|
rt = (iword >> 21) & 31; |
943 |
|
|
debug("mfcr\tr%i", rt); |
944 |
|
|
break; |
945 |
|
|
case PPC_31_MFMSR: |
946 |
|
|
rt = (iword >> 21) & 31; |
947 |
|
|
debug("mfmsr\tr%i", rt); |
948 |
|
|
break; |
949 |
|
|
case PPC_31_MTCRF: |
950 |
|
|
rs = (iword >> 21) & 31; |
951 |
|
|
mb = (iword >> 12) & 255; /* actually fxm, not mb */ |
952 |
|
|
debug("mtcrf\t%i,r%i", mb, rs); |
953 |
|
|
break; |
954 |
|
|
case PPC_31_MTMSR: |
955 |
|
|
rs = (iword >> 21) & 31; |
956 |
|
|
l_bit = (iword >> 16) & 1; |
957 |
|
|
debug("mtmsr\tr%i", rs); |
958 |
|
|
if (l_bit) |
959 |
|
|
debug(",%i", l_bit); |
960 |
|
|
break; |
961 |
|
|
case PPC_31_TW: |
962 |
|
|
case PPC_31_TD: |
963 |
|
|
to = (iword >> 21) & 31; |
964 |
|
|
ra = (iword >> 16) & 31; |
965 |
|
|
rb = (iword >> 11) & 31; |
966 |
|
|
switch (xo) { |
967 |
|
|
case PPC_31_TW: mnem = power? "t" : "tw"; break; |
968 |
|
|
case PPC_31_TD: mnem = "td"; break; |
969 |
|
|
} |
970 |
|
|
debug("%s\t%i,r%i,r%i", mnem, to, ra, rb); |
971 |
|
|
break; |
972 |
|
|
case PPC_31_LWARX: |
973 |
|
|
case PPC_31_LDARX: |
974 |
|
|
case PPC_31_LBZX: |
975 |
|
|
case PPC_31_LBZUX: |
976 |
dpavlin |
20 |
case PPC_31_LHAX: |
977 |
|
|
case PPC_31_LHAUX: |
978 |
dpavlin |
14 |
case PPC_31_LHZX: |
979 |
|
|
case PPC_31_LHZUX: |
980 |
|
|
case PPC_31_LWZX: |
981 |
|
|
case PPC_31_LWZUX: |
982 |
dpavlin |
20 |
case PPC_31_LHBRX: |
983 |
|
|
case PPC_31_LWBRX: |
984 |
|
|
case PPC_31_LFDX: |
985 |
|
|
case PPC_31_LFSX: |
986 |
dpavlin |
14 |
case PPC_31_STWCX_DOT: |
987 |
|
|
case PPC_31_STDCX_DOT: |
988 |
|
|
case PPC_31_STBX: |
989 |
|
|
case PPC_31_STBUX: |
990 |
|
|
case PPC_31_STHX: |
991 |
|
|
case PPC_31_STHUX: |
992 |
|
|
case PPC_31_STWX: |
993 |
|
|
case PPC_31_STWUX: |
994 |
|
|
case PPC_31_STDX: |
995 |
|
|
case PPC_31_STDUX: |
996 |
dpavlin |
20 |
case PPC_31_STHBRX: |
997 |
|
|
case PPC_31_STWBRX: |
998 |
|
|
case PPC_31_STFDX: |
999 |
|
|
case PPC_31_STFSX: |
1000 |
dpavlin |
14 |
/* rs for stores, rt for loads, actually */ |
1001 |
dpavlin |
20 |
load = 0; wlen = 0; fpreg = 0; |
1002 |
dpavlin |
14 |
rs = (iword >> 21) & 31; |
1003 |
|
|
ra = (iword >> 16) & 31; |
1004 |
|
|
rb = (iword >> 11) & 31; |
1005 |
|
|
switch (xo) { |
1006 |
|
|
case PPC_31_LWARX: wlen=4;load=1; mnem = "lwarx"; break; |
1007 |
|
|
case PPC_31_LDARX: wlen=8;load=1; mnem = "ldarx"; break; |
1008 |
|
|
case PPC_31_LBZX: wlen=1;load=1; mnem = "lbzx"; break; |
1009 |
|
|
case PPC_31_LBZUX: wlen=1;load=1; mnem = "lbzux"; break; |
1010 |
dpavlin |
20 |
case PPC_31_LHAX: wlen=2;load=1; mnem = "lhax"; break; |
1011 |
|
|
case PPC_31_LHAUX: wlen=2;load=1; mnem = "lhaux"; break; |
1012 |
dpavlin |
14 |
case PPC_31_LHZX: wlen=2;load=1; mnem = "lhzx"; break; |
1013 |
|
|
case PPC_31_LHZUX: wlen=2;load=1; mnem = "lhzux"; break; |
1014 |
|
|
case PPC_31_LWZX: wlen = 4; load = 1; |
1015 |
|
|
mnem = power? "lx" : "lwzx"; |
1016 |
|
|
break; |
1017 |
|
|
case PPC_31_LWZUX: wlen = 4; load = 1; |
1018 |
|
|
mnem = power? "lux":"lwzux"; |
1019 |
|
|
break; |
1020 |
dpavlin |
20 |
case PPC_31_LFDX: fpreg = 1; wlen = 8; load = 1; |
1021 |
|
|
mnem = "lfdx"; break; |
1022 |
|
|
case PPC_31_LFSX: fpreg = 1; wlen = 4; load = 1; |
1023 |
|
|
mnem = "lfsx"; break; |
1024 |
dpavlin |
14 |
case PPC_31_STWCX_DOT: wlen=4; mnem = "stwcx."; break; |
1025 |
|
|
case PPC_31_STDCX_DOT: wlen=8; mnem = "stdcx."; break; |
1026 |
|
|
case PPC_31_STBX: wlen=1; mnem = "stbx"; break; |
1027 |
|
|
case PPC_31_STBUX: wlen=1; mnem = "stbux"; break; |
1028 |
|
|
case PPC_31_STHX: wlen=2; mnem = "sthx"; break; |
1029 |
|
|
case PPC_31_STHUX: wlen=2; mnem = "sthux"; break; |
1030 |
|
|
case PPC_31_STWX: |
1031 |
|
|
wlen = 4; mnem = power? "stx" : "stwx"; |
1032 |
|
|
break; |
1033 |
|
|
case PPC_31_STWUX: |
1034 |
|
|
wlen = 4; mnem = power? "stux" : "stwux"; |
1035 |
|
|
break; |
1036 |
|
|
case PPC_31_STDX: wlen = 8; mnem = "stdx"; break; |
1037 |
|
|
case PPC_31_STDUX: wlen = 8; mnem = "stdux"; break; |
1038 |
dpavlin |
20 |
case PPC_31_LHBRX: wlen = 2; mnem = "lhbrx"; break; |
1039 |
|
|
case PPC_31_LWBRX: wlen = 4; mnem = power? |
1040 |
|
|
"lbrx" : "lwbrx"; break; |
1041 |
|
|
case PPC_31_STHBRX: wlen = 2; mnem = "sthbrx"; break; |
1042 |
|
|
case PPC_31_STWBRX: wlen = 4; mnem = power? |
1043 |
|
|
"stbrx" : "stwbrx"; break; |
1044 |
|
|
case PPC_31_STFDX: fpreg = 1; wlen = 8; |
1045 |
|
|
mnem = "stfdx"; break; |
1046 |
|
|
case PPC_31_STFSX: fpreg = 1; wlen = 4; |
1047 |
|
|
mnem = "stfsx"; break; |
1048 |
dpavlin |
14 |
} |
1049 |
dpavlin |
20 |
debug("%s\t%s%i,r%i,r%i", mnem, |
1050 |
|
|
fpreg? "f" : "r", rs, ra, rb); |
1051 |
dpavlin |
14 |
if (!running) |
1052 |
|
|
break; |
1053 |
|
|
addr = (ra==0? 0 : cpu->cd.ppc.gpr[ra]) + |
1054 |
|
|
cpu->cd.ppc.gpr[rb]; |
1055 |
dpavlin |
20 |
if (cpu->cd.ppc.bits == 32) |
1056 |
|
|
addr &= 0xffffffff; |
1057 |
dpavlin |
14 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
1058 |
|
|
addr, &offset); |
1059 |
|
|
if (symbol != NULL) |
1060 |
|
|
debug(" \t<%s", symbol); |
1061 |
|
|
else |
1062 |
|
|
debug(" \t<0x%llx", (long long)addr); |
1063 |
dpavlin |
20 |
if (wlen > 0 && !fpreg /* && !reverse */) { |
1064 |
dpavlin |
14 |
/* TODO */ |
1065 |
|
|
} |
1066 |
|
|
debug(">"); |
1067 |
|
|
break; |
1068 |
|
|
case PPC_31_NEG: |
1069 |
|
|
case PPC_31_NEGO: |
1070 |
|
|
rt = (iword >> 21) & 31; |
1071 |
|
|
ra = (iword >> 16) & 31; |
1072 |
|
|
oe_bit = (iword >> 10) & 1; |
1073 |
|
|
rc = iword & 1; |
1074 |
|
|
switch (xo) { |
1075 |
|
|
case PPC_31_NEG: mnem = "neg"; break; |
1076 |
|
|
case PPC_31_NEGO: mnem = "nego"; break; |
1077 |
|
|
} |
1078 |
|
|
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
1079 |
|
|
break; |
1080 |
|
|
case PPC_31_ADDZE: |
1081 |
|
|
case PPC_31_ADDZEO: |
1082 |
|
|
rt = (iword >> 21) & 31; |
1083 |
|
|
ra = (iword >> 16) & 31; |
1084 |
|
|
oe_bit = (iword >> 10) & 1; |
1085 |
|
|
rc = iword & 1; |
1086 |
|
|
switch (xo) { |
1087 |
|
|
case PPC_31_ADDZE: |
1088 |
|
|
mnem = power? "aze" : "addze"; |
1089 |
|
|
break; |
1090 |
|
|
case PPC_31_ADDZEO: |
1091 |
|
|
mnem = power? "azeo" : "addzeo"; |
1092 |
|
|
break; |
1093 |
|
|
} |
1094 |
|
|
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
1095 |
|
|
break; |
1096 |
|
|
case PPC_31_MTSR: |
1097 |
dpavlin |
20 |
case PPC_31_MFSR: |
1098 |
|
|
/* Move to/from segment register */ |
1099 |
dpavlin |
14 |
rt = (iword >> 21) & 31; |
1100 |
|
|
ra = (iword >> 16) & 15; /* actually: sr */ |
1101 |
dpavlin |
20 |
switch (xo) { |
1102 |
|
|
case PPC_31_MTSR: mnem = "mtsr"; break; |
1103 |
|
|
case PPC_31_MFSR: mnem = "mfsr"; break; |
1104 |
|
|
} |
1105 |
|
|
debug("%s\tr%i,%i", mnem, rt, ra); |
1106 |
dpavlin |
14 |
break; |
1107 |
|
|
case PPC_31_MTSRIN: |
1108 |
|
|
case PPC_31_MFSRIN: |
1109 |
|
|
/* Move to/from segment register indirect */ |
1110 |
|
|
rt = (iword >> 21) & 31; |
1111 |
|
|
rb = (iword >> 11) & 31; |
1112 |
|
|
switch (xo) { |
1113 |
|
|
case PPC_31_MTSRIN: mnem = "mtsrin"; break; |
1114 |
|
|
case PPC_31_MFSRIN: mnem = "mfsrin"; break; |
1115 |
|
|
} |
1116 |
|
|
debug("%s\tr%i,r%i", mnem, rt, rb); |
1117 |
|
|
break; |
1118 |
|
|
case PPC_31_ADDC: |
1119 |
|
|
case PPC_31_ADDCO: |
1120 |
|
|
case PPC_31_ADDE: |
1121 |
|
|
case PPC_31_ADDEO: |
1122 |
|
|
case PPC_31_ADDME: |
1123 |
|
|
case PPC_31_ADDMEO: |
1124 |
|
|
case PPC_31_ADD: |
1125 |
|
|
case PPC_31_ADDO: |
1126 |
|
|
case PPC_31_MULHW: |
1127 |
|
|
case PPC_31_MULHWU: |
1128 |
|
|
case PPC_31_MULLW: |
1129 |
|
|
case PPC_31_MULLWO: |
1130 |
|
|
case PPC_31_SUBF: |
1131 |
|
|
case PPC_31_SUBFO: |
1132 |
|
|
case PPC_31_SUBFC: |
1133 |
|
|
case PPC_31_SUBFCO: |
1134 |
|
|
case PPC_31_SUBFE: |
1135 |
|
|
case PPC_31_SUBFEO: |
1136 |
dpavlin |
20 |
case PPC_31_SUBFME: |
1137 |
|
|
case PPC_31_SUBFMEO: |
1138 |
dpavlin |
14 |
case PPC_31_SUBFZE: |
1139 |
|
|
case PPC_31_SUBFZEO: |
1140 |
|
|
rt = (iword >> 21) & 31; |
1141 |
|
|
ra = (iword >> 16) & 31; |
1142 |
|
|
rb = (iword >> 11) & 31; |
1143 |
|
|
oe_bit = (iword >> 10) & 1; |
1144 |
|
|
rc = iword & 1; |
1145 |
|
|
switch (xo) { |
1146 |
|
|
case PPC_31_ADDC: |
1147 |
|
|
mnem = power? "a" : "addc"; |
1148 |
|
|
break; |
1149 |
|
|
case PPC_31_ADDCO: |
1150 |
|
|
mnem = power? "ao" : "addco"; |
1151 |
|
|
break; |
1152 |
|
|
case PPC_31_ADDE: |
1153 |
|
|
mnem = power? "ae" : "adde"; |
1154 |
|
|
break; |
1155 |
|
|
case PPC_31_ADDEO: |
1156 |
|
|
mnem = power? "aeo" : "addeo"; |
1157 |
|
|
break; |
1158 |
|
|
case PPC_31_ADDME: |
1159 |
|
|
mnem = power? "ame" : "addme"; |
1160 |
|
|
no_rb = 1; |
1161 |
|
|
break; |
1162 |
|
|
case PPC_31_ADDMEO: |
1163 |
|
|
mnem = power? "ameo" : "addmeo"; |
1164 |
|
|
no_rb = 1; |
1165 |
|
|
break; |
1166 |
|
|
case PPC_31_ADD: |
1167 |
|
|
mnem = power? "cax" : "add"; |
1168 |
|
|
break; |
1169 |
|
|
case PPC_31_ADDO: |
1170 |
|
|
mnem = power? "caxo" : "addo"; |
1171 |
|
|
break; |
1172 |
|
|
case PPC_31_MULHW: mnem = "mulhw"; break; |
1173 |
|
|
case PPC_31_MULHWU: mnem = "mulhwu"; break; |
1174 |
|
|
case PPC_31_MULLW: |
1175 |
|
|
mnem = power? "muls" : "mullw"; |
1176 |
|
|
break; |
1177 |
|
|
case PPC_31_MULLWO: |
1178 |
|
|
mnem = power? "mulso" : "mullwo"; |
1179 |
|
|
break; |
1180 |
|
|
case PPC_31_SUBF: mnem = "subf"; break; |
1181 |
|
|
case PPC_31_SUBFO: mnem = "subfo"; break; |
1182 |
|
|
case PPC_31_SUBFC: |
1183 |
dpavlin |
20 |
mnem = power? "sf" : "subfc"; break; |
1184 |
dpavlin |
14 |
case PPC_31_SUBFCO: |
1185 |
dpavlin |
20 |
mnem = power? "sfo" : "subfco"; break; |
1186 |
dpavlin |
14 |
case PPC_31_SUBFE: |
1187 |
dpavlin |
20 |
mnem = power? "sfe" : "subfe"; break; |
1188 |
dpavlin |
14 |
case PPC_31_SUBFEO: |
1189 |
dpavlin |
20 |
mnem = power? "sfeo" : "subfeo"; break; |
1190 |
|
|
case PPC_31_SUBFME: |
1191 |
|
|
mnem = power? "sfme" : "subfme"; break; |
1192 |
|
|
case PPC_31_SUBFMEO: |
1193 |
|
|
mnem = power? "sfmeo" : "subfmeo"; break; |
1194 |
dpavlin |
14 |
case PPC_31_SUBFZE: |
1195 |
|
|
mnem = power? "sfze" : "subfze"; |
1196 |
|
|
no_rb = 1; |
1197 |
|
|
break; |
1198 |
|
|
case PPC_31_SUBFZEO: |
1199 |
|
|
mnem = power? "sfzeo" : "subfzeo"; |
1200 |
|
|
no_rb = 1; |
1201 |
|
|
break; |
1202 |
|
|
} |
1203 |
|
|
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
1204 |
|
|
if (!no_rb) |
1205 |
|
|
debug(",r%i", rb); |
1206 |
|
|
break; |
1207 |
|
|
case PPC_31_MFSPR: |
1208 |
|
|
rt = (iword >> 21) & 31; |
1209 |
|
|
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
1210 |
|
|
switch (spr) { |
1211 |
dpavlin |
20 |
/* Some very common ones: */ |
1212 |
dpavlin |
14 |
case 8: debug("mflr\tr%i", rt); break; |
1213 |
|
|
case 9: debug("mfctr\tr%i", rt); break; |
1214 |
|
|
default:debug("mfspr\tr%i,spr%i", rt, spr); |
1215 |
|
|
} |
1216 |
dpavlin |
20 |
if (spr == 8 || spr == 9) |
1217 |
|
|
debug("\t"); |
1218 |
|
|
debug("\t<%s%s", running? "read from " : "", |
1219 |
|
|
ppc_spr_names[spr]==NULL? "?" : ppc_spr_names[spr]); |
1220 |
|
|
if (running) { |
1221 |
|
|
if (cpu->cd.ppc.bits == 32) |
1222 |
|
|
debug(": 0x%x", (int) |
1223 |
|
|
cpu->cd.ppc.spr[spr]); |
1224 |
|
|
else |
1225 |
|
|
debug(": 0x%llx", (long long) |
1226 |
|
|
cpu->cd.ppc.spr[spr]); |
1227 |
|
|
} |
1228 |
|
|
debug(">"); |
1229 |
dpavlin |
14 |
break; |
1230 |
dpavlin |
20 |
case PPC_31_TLBIA: |
1231 |
|
|
debug("tlbia"); |
1232 |
|
|
break; |
1233 |
|
|
case PPC_31_SLBIA: |
1234 |
|
|
debug("slbia"); |
1235 |
|
|
break; |
1236 |
|
|
case PPC_31_TLBLD: |
1237 |
|
|
case PPC_31_TLBLI: |
1238 |
|
|
rb = (iword >> 11) & 31; |
1239 |
|
|
debug("tlbl%s\tr%i", xo == PPC_31_TLBLD? "d" : "i", rb); |
1240 |
|
|
break; |
1241 |
dpavlin |
14 |
case PPC_31_TLBIE: |
1242 |
|
|
/* TODO: what is ra? The IBM online docs didn't say */ |
1243 |
|
|
ra = 0; |
1244 |
|
|
rb = (iword >> 11) & 31; |
1245 |
|
|
if (power) |
1246 |
|
|
debug("tlbi\tr%i,r%i", ra, rb); |
1247 |
|
|
else |
1248 |
|
|
debug("tlbie\tr%i", rb); |
1249 |
|
|
break; |
1250 |
|
|
case PPC_31_TLBSYNC: |
1251 |
|
|
debug("tlbsync"); |
1252 |
|
|
break; |
1253 |
|
|
case PPC_31_MFTB: |
1254 |
|
|
rt = (iword >> 21) & 31; |
1255 |
|
|
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
1256 |
|
|
debug("mftb%s\tr%i", spr==268? "" : |
1257 |
|
|
(spr==269? "u" : "?"), rt); |
1258 |
|
|
break; |
1259 |
|
|
case PPC_31_CNTLZW: |
1260 |
|
|
rs = (iword >> 21) & 31; |
1261 |
|
|
ra = (iword >> 16) & 31; |
1262 |
|
|
rc = iword & 1; |
1263 |
|
|
mnem = power? "cntlz" : "cntlzw"; |
1264 |
|
|
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
1265 |
|
|
break; |
1266 |
|
|
case PPC_31_CLF: /* POWER only */ |
1267 |
|
|
case PPC_31_CLI: /* POWER only */ |
1268 |
|
|
case PPC_31_DCLST: /* POWER only */ |
1269 |
|
|
case PPC_31_DCBF: /* PowerPC only */ |
1270 |
|
|
case PPC_31_DCBI: /* PowerPC only */ |
1271 |
|
|
case PPC_31_DCBST: /* PowerPC only */ |
1272 |
|
|
case PPC_31_DCBTST: /* PowerPC only */ |
1273 |
|
|
case PPC_31_DCBT: /* PowerPC only */ |
1274 |
|
|
case PPC_31_ICBI: /* PowerPC only */ |
1275 |
|
|
case PPC_31_DCBZ: /* POWER/PowerPC */ |
1276 |
|
|
ra = (iword >> 16) & 31; |
1277 |
|
|
rb = (iword >> 11) & 31; |
1278 |
|
|
switch (xo) { |
1279 |
|
|
case PPC_31_CLF: mnem = "clf"; break; |
1280 |
|
|
case PPC_31_CLI: mnem = "cli"; break; |
1281 |
|
|
case PPC_31_DCLST: mnem = "dclst"; break; |
1282 |
|
|
case PPC_31_DCBF: mnem = "dcbf"; break; |
1283 |
|
|
case PPC_31_DCBI: mnem = "dcbi"; break; |
1284 |
|
|
case PPC_31_DCBST: mnem = "dcbst"; break; |
1285 |
|
|
case PPC_31_DCBTST:mnem = "dcbtst"; break; |
1286 |
|
|
case PPC_31_DCBT: mnem = "dcbt"; break; |
1287 |
|
|
case PPC_31_ICBI: mnem = "icbi"; break; |
1288 |
|
|
case PPC_31_DCBZ: mnem = power ? |
1289 |
|
|
"dclz" : "dcbz"; break; |
1290 |
|
|
} |
1291 |
|
|
debug("%s\tr%i,r%i", mnem, ra, rb); |
1292 |
|
|
break; |
1293 |
|
|
case PPC_31_SLW: |
1294 |
|
|
case PPC_31_SRAW: |
1295 |
|
|
case PPC_31_SRW: |
1296 |
|
|
case PPC_31_AND: |
1297 |
|
|
case PPC_31_ANDC: |
1298 |
|
|
case PPC_31_NOR: |
1299 |
|
|
case PPC_31_OR: |
1300 |
|
|
case PPC_31_ORC: |
1301 |
|
|
case PPC_31_XOR: |
1302 |
|
|
case PPC_31_NAND: |
1303 |
|
|
rs = (iword >> 21) & 31; |
1304 |
|
|
ra = (iword >> 16) & 31; |
1305 |
|
|
rb = (iword >> 11) & 31; |
1306 |
|
|
rc = iword & 1; |
1307 |
|
|
if (rs == rb && xo == PPC_31_OR) |
1308 |
|
|
debug("mr%s\tr%i,r%i", rc? "." : "", ra, rs); |
1309 |
|
|
else { |
1310 |
|
|
switch (xo) { |
1311 |
|
|
case PPC_31_SLW: mnem = |
1312 |
|
|
power? "sl" : "slw"; break; |
1313 |
|
|
case PPC_31_SRAW: mnem = |
1314 |
|
|
power? "sra" : "sraw"; break; |
1315 |
|
|
case PPC_31_SRW: mnem = |
1316 |
|
|
power? "sr" : "srw"; break; |
1317 |
|
|
case PPC_31_AND: mnem = "and"; break; |
1318 |
|
|
case PPC_31_NAND: mnem = "nand"; break; |
1319 |
|
|
case PPC_31_ANDC: mnem = "andc"; break; |
1320 |
|
|
case PPC_31_NOR: mnem = "nor"; break; |
1321 |
|
|
case PPC_31_OR: mnem = "or"; break; |
1322 |
|
|
case PPC_31_ORC: mnem = "orc"; break; |
1323 |
|
|
case PPC_31_XOR: mnem = "xor"; break; |
1324 |
|
|
} |
1325 |
|
|
debug("%s%s\tr%i,r%i,r%i", mnem, |
1326 |
|
|
rc? "." : "", ra, rs, rb); |
1327 |
|
|
} |
1328 |
|
|
break; |
1329 |
|
|
case PPC_31_DCCCI: |
1330 |
|
|
ra = (iword >> 16) & 31; |
1331 |
|
|
rb = (iword >> 11) & 31; |
1332 |
|
|
debug("dccci\tr%i,r%i", ra, rb); |
1333 |
|
|
break; |
1334 |
|
|
case PPC_31_ICCCI: |
1335 |
|
|
ra = (iword >> 16) & 31; |
1336 |
|
|
rb = (iword >> 11) & 31; |
1337 |
|
|
debug("iccci\tr%i,r%i", ra, rb); |
1338 |
|
|
break; |
1339 |
|
|
case PPC_31_DIVW: |
1340 |
|
|
case PPC_31_DIVWO: |
1341 |
|
|
case PPC_31_DIVWU: |
1342 |
|
|
case PPC_31_DIVWUO: |
1343 |
|
|
rt = (iword >> 21) & 31; |
1344 |
|
|
ra = (iword >> 16) & 31; |
1345 |
|
|
rb = (iword >> 11) & 31; |
1346 |
|
|
oe_bit = (iword >> 10) & 1; |
1347 |
|
|
rc = iword & 1; |
1348 |
|
|
switch (xo) { |
1349 |
|
|
case PPC_31_DIVWU: mnem = "divwu"; break; |
1350 |
|
|
case PPC_31_DIVWUO: mnem = "divwuo"; break; |
1351 |
|
|
case PPC_31_DIVW: mnem = "divw"; break; |
1352 |
|
|
case PPC_31_DIVWO: mnem = "divwo"; break; |
1353 |
|
|
} |
1354 |
|
|
debug("%s%s\tr%i,r%i,r%i", mnem, rc? "." : "", |
1355 |
|
|
rt, ra, rb); |
1356 |
|
|
break; |
1357 |
|
|
case PPC_31_MTSPR: |
1358 |
|
|
rs = (iword >> 21) & 31; |
1359 |
|
|
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
1360 |
|
|
switch (spr) { |
1361 |
dpavlin |
20 |
/* Some very common ones: */ |
1362 |
dpavlin |
14 |
case 8: debug("mtlr\tr%i", rs); break; |
1363 |
|
|
case 9: debug("mtctr\tr%i", rs); break; |
1364 |
|
|
default:debug("mtspr\tspr%i,r%i", spr, rs); |
1365 |
|
|
} |
1366 |
dpavlin |
20 |
if (spr == 8 || spr == 9) |
1367 |
|
|
debug("\t"); |
1368 |
|
|
debug("\t<%s%s", running? "write to " : "", |
1369 |
|
|
ppc_spr_names[spr]==NULL? "?" : ppc_spr_names[spr]); |
1370 |
|
|
if (running) { |
1371 |
|
|
if (cpu->cd.ppc.bits == 32) |
1372 |
|
|
debug(": 0x%x", (int) |
1373 |
|
|
cpu->cd.ppc.gpr[rs]); |
1374 |
|
|
else |
1375 |
|
|
debug(": 0x%llx", (long long) |
1376 |
|
|
cpu->cd.ppc.gpr[rs]); |
1377 |
|
|
} |
1378 |
|
|
debug(">"); |
1379 |
dpavlin |
14 |
break; |
1380 |
|
|
case PPC_31_SYNC: |
1381 |
|
|
debug("%s", power? "dcs" : "sync"); |
1382 |
|
|
break; |
1383 |
|
|
case PPC_31_LSWI: |
1384 |
|
|
case PPC_31_STSWI: |
1385 |
|
|
rs = (iword >> 21) & 31; /* lwsi uses rt */ |
1386 |
|
|
ra = (iword >> 16) & 31; |
1387 |
|
|
nb = (iword >> 11) & 31; |
1388 |
|
|
switch (xo) { |
1389 |
|
|
case PPC_31_LSWI: |
1390 |
|
|
mnem = power? "lsi" : "lswi"; break; |
1391 |
|
|
case PPC_31_STSWI: |
1392 |
|
|
mnem = power? "stsi" : "stswi"; break; |
1393 |
|
|
} |
1394 |
|
|
debug("%s\tr%i,r%i,%i", mnem, rs, ra, nb); |
1395 |
|
|
break; |
1396 |
|
|
case PPC_31_SRAWI: |
1397 |
|
|
rs = (iword >> 21) & 31; |
1398 |
|
|
ra = (iword >> 16) & 31; |
1399 |
|
|
sh = (iword >> 11) & 31; |
1400 |
|
|
rc = iword & 1; |
1401 |
|
|
mnem = power? "srai" : "srawi"; |
1402 |
|
|
debug("%s%s\tr%i,r%i,%i", mnem, |
1403 |
|
|
rc? "." : "", ra, rs, sh); |
1404 |
|
|
break; |
1405 |
|
|
case PPC_31_EIEIO: |
1406 |
|
|
debug("%s", power? "eieio?" : "eieio"); |
1407 |
|
|
break; |
1408 |
|
|
case PPC_31_EXTSB: |
1409 |
|
|
case PPC_31_EXTSH: |
1410 |
|
|
case PPC_31_EXTSW: |
1411 |
|
|
rs = (iword >> 21) & 31; |
1412 |
|
|
ra = (iword >> 16) & 31; |
1413 |
|
|
rc = iword & 1; |
1414 |
|
|
switch (xo) { |
1415 |
|
|
case PPC_31_EXTSB: |
1416 |
|
|
mnem = power? "exts" : "extsb"; |
1417 |
|
|
break; |
1418 |
|
|
case PPC_31_EXTSH: |
1419 |
|
|
mnem = "extsh"; |
1420 |
|
|
break; |
1421 |
|
|
case PPC_31_EXTSW: |
1422 |
|
|
mnem = "extsw"; |
1423 |
|
|
break; |
1424 |
|
|
} |
1425 |
|
|
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
1426 |
|
|
break; |
1427 |
|
|
default: |
1428 |
|
|
debug("unimplemented hi6_31, xo = 0x%x", xo); |
1429 |
|
|
} |
1430 |
|
|
break; |
1431 |
dpavlin |
20 |
case PPC_HI6_LD: |
1432 |
dpavlin |
14 |
case PPC_HI6_LWZ: |
1433 |
|
|
case PPC_HI6_LWZU: |
1434 |
|
|
case PPC_HI6_LHZ: |
1435 |
|
|
case PPC_HI6_LHZU: |
1436 |
|
|
case PPC_HI6_LHA: |
1437 |
|
|
case PPC_HI6_LHAU: |
1438 |
|
|
case PPC_HI6_LBZ: |
1439 |
|
|
case PPC_HI6_LBZU: |
1440 |
dpavlin |
20 |
case PPC_HI6_LFD: |
1441 |
|
|
case PPC_HI6_LFS: |
1442 |
dpavlin |
14 |
case PPC_HI6_LMW: |
1443 |
dpavlin |
20 |
case PPC_HI6_STD: |
1444 |
dpavlin |
14 |
case PPC_HI6_STW: |
1445 |
|
|
case PPC_HI6_STWU: |
1446 |
|
|
case PPC_HI6_STH: |
1447 |
|
|
case PPC_HI6_STHU: |
1448 |
|
|
case PPC_HI6_STB: |
1449 |
|
|
case PPC_HI6_STBU: |
1450 |
|
|
case PPC_HI6_STMW: |
1451 |
|
|
case PPC_HI6_STFD: |
1452 |
dpavlin |
20 |
case PPC_HI6_STFS: |
1453 |
dpavlin |
14 |
/* NOTE: Loads use rt, not rs, but are otherwise similar |
1454 |
|
|
to stores */ |
1455 |
|
|
load = 0; wlen = 0; |
1456 |
|
|
rs = (iword >> 21) & 31; |
1457 |
|
|
ra = (iword >> 16) & 31; |
1458 |
|
|
imm = (int16_t)(iword & 0xffff); |
1459 |
|
|
fpreg = 0; |
1460 |
|
|
switch (hi6) { |
1461 |
dpavlin |
20 |
case PPC_HI6_LD: load=1; wlen = 8; mnem = "ld"; break; |
1462 |
dpavlin |
14 |
case PPC_HI6_LWZ: load=1; wlen = 4; |
1463 |
|
|
mnem = power? "l" : "lwz"; break; |
1464 |
|
|
case PPC_HI6_LWZU: load=1; wlen = 4; |
1465 |
|
|
mnem = power? "lu" : "lwzu"; break; |
1466 |
|
|
case PPC_HI6_LHZ: load=1; wlen = 2; |
1467 |
|
|
mnem = "lhz"; break; |
1468 |
|
|
case PPC_HI6_LHZU: load=1; wlen = 2; |
1469 |
|
|
mnem = "lhzu"; break; |
1470 |
|
|
case PPC_HI6_LHA: load=2; wlen = 2; |
1471 |
|
|
mnem = "lha"; break; |
1472 |
|
|
case PPC_HI6_LHAU: load=2; wlen = 2; |
1473 |
|
|
mnem = "lhau"; break; |
1474 |
|
|
case PPC_HI6_LBZ: load=1; wlen = 1; |
1475 |
|
|
mnem = "lbz"; break; |
1476 |
|
|
case PPC_HI6_LBZU: load=1; wlen = 1; |
1477 |
|
|
mnem = "lbzu"; break; |
1478 |
dpavlin |
20 |
case PPC_HI6_LFD: load=1; fpreg=1; wlen=8; mnem = "lfd"; break; |
1479 |
|
|
case PPC_HI6_LFS: load=1; fpreg=1; wlen=4; mnem = "lfs"; break; |
1480 |
|
|
case PPC_HI6_STD: wlen=8; mnem = "std"; break; |
1481 |
dpavlin |
14 |
case PPC_HI6_STW: wlen=4; mnem = power? "st" : "stw"; break; |
1482 |
|
|
case PPC_HI6_STWU: wlen=4; mnem = power? "stu" : "stwu"; break; |
1483 |
|
|
case PPC_HI6_STH: wlen=2; mnem = "sth"; break; |
1484 |
|
|
case PPC_HI6_STHU: wlen=2; mnem = "sthu"; break; |
1485 |
|
|
case PPC_HI6_STB: wlen=1; mnem = "stb"; break; |
1486 |
|
|
case PPC_HI6_STBU: wlen=1; mnem = "stbu"; break; |
1487 |
|
|
case PPC_HI6_LMW: load=1; mnem = power? "lm" : "lmw"; break; |
1488 |
|
|
case PPC_HI6_STMW: mnem = power? "stm" : "stmw"; break; |
1489 |
dpavlin |
20 |
case PPC_HI6_STFD: fpreg=1; wlen=8; mnem = "stfd"; break; |
1490 |
|
|
case PPC_HI6_STFS: fpreg=1; wlen=4; mnem = "stfs"; break; |
1491 |
dpavlin |
14 |
} |
1492 |
|
|
debug("%s\t", mnem); |
1493 |
|
|
if (fpreg) |
1494 |
|
|
debug("f"); |
1495 |
|
|
else |
1496 |
|
|
debug("r"); |
1497 |
|
|
debug("%i,%i(r%i)", rs, imm, ra); |
1498 |
|
|
if (!running) |
1499 |
|
|
break; |
1500 |
|
|
addr = (ra==0? 0 : cpu->cd.ppc.gpr[ra]) + imm; |
1501 |
dpavlin |
20 |
if (cpu->cd.ppc.bits == 32) |
1502 |
|
|
addr &= 0xffffffff; |
1503 |
dpavlin |
14 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
1504 |
|
|
addr, &offset); |
1505 |
|
|
if (symbol != NULL) |
1506 |
|
|
debug(" \t<%s", symbol); |
1507 |
|
|
else |
1508 |
|
|
debug(" \t<0x%llx", (long long)addr); |
1509 |
|
|
if (wlen > 0 && load && wlen > 0) { |
1510 |
|
|
unsigned char tw[8]; |
1511 |
|
|
uint64_t tdata = 0; |
1512 |
|
|
int i, res = cpu->memory_rw(cpu, cpu->mem, addr, tw, |
1513 |
|
|
wlen, MEM_READ, NO_EXCEPTIONS); |
1514 |
|
|
if (res) { |
1515 |
|
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
1516 |
|
|
for (i=0; i<wlen; i++) { |
1517 |
|
|
tdata <<= 8; |
1518 |
|
|
tdata |= tw[wlen-1-i]; |
1519 |
|
|
} |
1520 |
|
|
else |
1521 |
|
|
for (i=0; i<wlen; i++) { |
1522 |
|
|
tdata <<= 8; |
1523 |
|
|
tdata |= tw[i]; |
1524 |
|
|
} |
1525 |
|
|
debug(": "); |
1526 |
|
|
if (wlen >= 4) { |
1527 |
|
|
symbol = get_symbol_name(&cpu->machine-> |
1528 |
|
|
symbol_context, tdata, &offset); |
1529 |
|
|
if (symbol != NULL) |
1530 |
|
|
debug("%s", symbol); |
1531 |
|
|
else |
1532 |
|
|
debug("0x%llx", |
1533 |
|
|
(long long)tdata); |
1534 |
|
|
} else { |
1535 |
|
|
/* TODO: if load==2, then this is |
1536 |
|
|
a _signed_ load. */ |
1537 |
|
|
debug("0x%llx", (long long)tdata); |
1538 |
|
|
} |
1539 |
|
|
} else |
1540 |
|
|
debug(": unreadable"); |
1541 |
|
|
} |
1542 |
|
|
if (wlen > 0 && !load && wlen > 0) { |
1543 |
|
|
int64_t tdata = 0; |
1544 |
|
|
int i; |
1545 |
|
|
for (i=0; i<wlen; i++) |
1546 |
|
|
tdata |= (cpu->cd.ppc.gpr[rs] & |
1547 |
dpavlin |
20 |
((uint64_t)0xff << (i*8))); |
1548 |
dpavlin |
14 |
debug(": "); |
1549 |
|
|
if (wlen >= 4) { |
1550 |
|
|
symbol = get_symbol_name(&cpu->machine-> |
1551 |
|
|
symbol_context, tdata, &offset); |
1552 |
|
|
if (symbol != NULL) |
1553 |
|
|
debug("%s", symbol); |
1554 |
|
|
else |
1555 |
dpavlin |
20 |
debug("0x%llx", (long long)tdata); |
1556 |
dpavlin |
14 |
} else { |
1557 |
|
|
if (tdata > -256 && tdata < 256) |
1558 |
|
|
debug("%i", (int)tdata); |
1559 |
|
|
else |
1560 |
|
|
debug("0x%llx", (long long)tdata); |
1561 |
|
|
} |
1562 |
|
|
} |
1563 |
|
|
debug(">"); |
1564 |
|
|
break; |
1565 |
dpavlin |
20 |
case PPC_HI6_59: |
1566 |
|
|
xo = (iword >> 1) & 1023; |
1567 |
|
|
/* NOTE: Some floating point instructions only use the |
1568 |
|
|
lowest 5 bits of xo, some use all 10 bits! */ |
1569 |
|
|
switch (xo & 31) { |
1570 |
|
|
case PPC_59_FDIVS: |
1571 |
|
|
case PPC_59_FSUBS: |
1572 |
|
|
case PPC_59_FADDS: |
1573 |
|
|
case PPC_59_FMULS: |
1574 |
|
|
case PPC_59_FMADDS: |
1575 |
|
|
rt = (iword >> 21) & 31; |
1576 |
|
|
ra = (iword >> 16) & 31; |
1577 |
|
|
rb = (iword >> 11) & 31; |
1578 |
|
|
rs = (iword >> 6) & 31; /* actually frc */ |
1579 |
|
|
rc = iword & 1; |
1580 |
|
|
switch (xo & 31) { |
1581 |
|
|
case PPC_59_FDIVS: mnem = "fdivs"; break; |
1582 |
|
|
case PPC_59_FSUBS: mnem = "fsubs"; break; |
1583 |
|
|
case PPC_59_FADDS: mnem = "fadds"; break; |
1584 |
|
|
case PPC_59_FMULS: mnem = "fmuls"; break; |
1585 |
|
|
case PPC_59_FMADDS: mnem = "fmadds"; break; |
1586 |
|
|
} |
1587 |
|
|
debug("%s%s\t", mnem, rc? "." : ""); |
1588 |
|
|
switch (xo & 31) { |
1589 |
|
|
case PPC_59_FMULS: |
1590 |
|
|
debug("f%i,f%i,f%i", rt, ra, rs); |
1591 |
|
|
break; |
1592 |
|
|
case PPC_59_FMADDS: |
1593 |
|
|
debug("f%i,f%i,f%i,f%i", rt, ra, rs, rb); |
1594 |
|
|
break; |
1595 |
|
|
default:debug("f%i,f%i,f%i", rt, ra, rb); |
1596 |
|
|
} |
1597 |
|
|
break; |
1598 |
|
|
default:/* TODO: similar to hi6_63 */ |
1599 |
|
|
debug("unimplemented hi6_59, xo = 0x%x", xo); |
1600 |
|
|
} |
1601 |
|
|
break; |
1602 |
dpavlin |
14 |
case PPC_HI6_63: |
1603 |
|
|
xo = (iword >> 1) & 1023; |
1604 |
dpavlin |
20 |
/* NOTE: Some floating point instructions only use the |
1605 |
|
|
lowest 5 bits of xo, some use all 10 bits! */ |
1606 |
|
|
switch (xo & 31) { |
1607 |
|
|
case PPC_63_FDIV: |
1608 |
|
|
case PPC_63_FSUB: |
1609 |
|
|
case PPC_63_FADD: |
1610 |
|
|
case PPC_63_FMUL: |
1611 |
|
|
case PPC_63_FMSUB: |
1612 |
|
|
case PPC_63_FMADD: |
1613 |
dpavlin |
14 |
rt = (iword >> 21) & 31; |
1614 |
|
|
ra = (iword >> 16) & 31; |
1615 |
|
|
rb = (iword >> 11) & 31; |
1616 |
dpavlin |
20 |
rs = (iword >> 6) & 31; /* actually frc */ |
1617 |
dpavlin |
14 |
rc = iword & 1; |
1618 |
dpavlin |
20 |
switch (xo & 31) { |
1619 |
|
|
case PPC_63_FDIV: |
1620 |
|
|
mnem = power? "fd" : "fdiv"; break; |
1621 |
|
|
case PPC_63_FSUB: |
1622 |
|
|
mnem = power? "fs" : "fsub"; break; |
1623 |
|
|
case PPC_63_FADD: |
1624 |
|
|
mnem = power? "fa" : "fadd"; break; |
1625 |
|
|
case PPC_63_FMUL: |
1626 |
|
|
mnem = power? "fm" : "fmul"; break; |
1627 |
|
|
case PPC_63_FMSUB: |
1628 |
|
|
mnem = power? "fms" : "fmsub"; break; |
1629 |
|
|
case PPC_63_FMADD: |
1630 |
|
|
mnem = power? "fma" : "fmadd"; break; |
1631 |
|
|
} |
1632 |
|
|
debug("%s%s\t", mnem, rc? "." : ""); |
1633 |
|
|
switch (xo & 31) { |
1634 |
|
|
case PPC_63_FMUL: |
1635 |
|
|
debug("f%i,f%i,f%i", rt, ra, rs); |
1636 |
|
|
break; |
1637 |
|
|
case PPC_63_FMADD: |
1638 |
|
|
debug("f%i,f%i,f%i,f%i", rt, ra, rs, rb); |
1639 |
|
|
break; |
1640 |
|
|
default:debug("f%i,f%i,f%i", rt, ra, rb); |
1641 |
|
|
} |
1642 |
|
|
break; |
1643 |
|
|
default:rt = (iword >> 21) & 31; |
1644 |
|
|
ra = (iword >> 16) & 31; |
1645 |
|
|
rb = (iword >> 11) & 31; |
1646 |
|
|
rc = iword & 1; |
1647 |
dpavlin |
14 |
switch (xo) { |
1648 |
dpavlin |
20 |
case PPC_63_FCMPU: |
1649 |
|
|
case PPC_63_FRSP: |
1650 |
|
|
case PPC_63_FCTIWZ: |
1651 |
|
|
case PPC_63_FNEG: |
1652 |
dpavlin |
14 |
case PPC_63_FMR: |
1653 |
dpavlin |
20 |
case PPC_63_FNABS: |
1654 |
|
|
case PPC_63_FABS: |
1655 |
|
|
switch (xo) { |
1656 |
|
|
case PPC_63_FCMPU: mnem = "fcmpu"; break; |
1657 |
|
|
case PPC_63_FCTIWZ: |
1658 |
|
|
mnem = power? "fcirz" : "fctiwz"; break; |
1659 |
|
|
case PPC_63_FRSP: mnem = "frsp"; break; |
1660 |
|
|
case PPC_63_FNEG: mnem = "fneg"; break; |
1661 |
|
|
case PPC_63_FMR: mnem = "fmr"; break; |
1662 |
|
|
case PPC_63_FNABS: mnem = "fnabs"; break; |
1663 |
|
|
case PPC_63_FABS: mnem = "fabs"; break; |
1664 |
|
|
} |
1665 |
|
|
debug("%s%s\t", mnem, rc? "." : ""); |
1666 |
|
|
switch (xo) { |
1667 |
|
|
case PPC_63_FCMPU: |
1668 |
|
|
debug("%i,f%i,f%i", rt >> 2, ra, rb); |
1669 |
|
|
break; |
1670 |
|
|
case PPC_63_FCTIWZ: |
1671 |
|
|
case PPC_63_FRSP: |
1672 |
|
|
case PPC_63_FNEG: |
1673 |
|
|
case PPC_63_FMR: |
1674 |
|
|
case PPC_63_FNABS: |
1675 |
|
|
case PPC_63_FABS: |
1676 |
|
|
debug("f%i,f%i", rt, rb); |
1677 |
|
|
break; |
1678 |
|
|
default:debug("f%i,f%i,f%i", rt, ra, rb); |
1679 |
|
|
} |
1680 |
dpavlin |
14 |
break; |
1681 |
dpavlin |
20 |
case PPC_63_MFFS: |
1682 |
|
|
debug("mffs%s\tf%i", rc?".":"", rt); |
1683 |
|
|
break; |
1684 |
|
|
case PPC_63_MTFSF: |
1685 |
|
|
ra = (iword >> 17) & 255; /* flm */ |
1686 |
|
|
debug("mtfsf%s\t0x%02x,f%i", rc?".":"", ra, rb); |
1687 |
|
|
break; |
1688 |
|
|
default:debug("unimplemented hi6_63, xo = 0x%x", xo); |
1689 |
dpavlin |
14 |
} |
1690 |
|
|
} |
1691 |
|
|
break; |
1692 |
|
|
default: |
1693 |
|
|
/* TODO */ |
1694 |
|
|
debug("unimplemented hi6 = 0x%02x", hi6); |
1695 |
|
|
} |
1696 |
|
|
|
1697 |
|
|
debug("\n"); |
1698 |
|
|
return sizeof(iword); |
1699 |
|
|
} |
1700 |
|
|
|
1701 |
|
|
|
1702 |
|
|
/* |
1703 |
dpavlin |
20 |
* debug_spr_usage(): |
1704 |
|
|
* |
1705 |
|
|
* Helper function. To speed up overall development speed of the emulator, |
1706 |
|
|
* all SPR accesses are allowed. This function causes unknown/unimplemented |
1707 |
|
|
* SPRs to give a warning. |
1708 |
|
|
*/ |
1709 |
|
|
static void debug_spr_usage(uint64_t pc, int spr) |
1710 |
|
|
{ |
1711 |
|
|
static uint32_t spr_used[1024 / sizeof(uint32_t)]; |
1712 |
|
|
static int initialized = 0; |
1713 |
|
|
|
1714 |
|
|
if (!initialized) { |
1715 |
|
|
memset(spr_used, 0, sizeof(spr_used)); |
1716 |
|
|
initialized = 1; |
1717 |
|
|
} |
1718 |
|
|
|
1719 |
|
|
spr &= 1023; |
1720 |
|
|
if (spr_used[spr >> 2] & (1 << (spr & 3))) |
1721 |
|
|
return; |
1722 |
|
|
|
1723 |
|
|
switch (spr) { |
1724 |
|
|
/* Known/implemented SPRs: */ |
1725 |
|
|
case SPR_XER: |
1726 |
|
|
case SPR_LR: |
1727 |
|
|
case SPR_CTR: |
1728 |
|
|
case SPR_DSISR: |
1729 |
|
|
case SPR_DAR: |
1730 |
|
|
case SPR_DEC: |
1731 |
|
|
case SPR_SDR1: |
1732 |
|
|
case SPR_SRR0: |
1733 |
|
|
case SPR_SRR1: |
1734 |
|
|
case SPR_SPRG0: |
1735 |
|
|
case SPR_SPRG1: |
1736 |
|
|
case SPR_SPRG2: |
1737 |
|
|
case SPR_SPRG3: |
1738 |
|
|
case SPR_PVR: |
1739 |
|
|
case SPR_DMISS: |
1740 |
|
|
case SPR_DCMP: |
1741 |
|
|
case SPR_HASH1: |
1742 |
|
|
case SPR_HASH2: |
1743 |
|
|
case SPR_IMISS: |
1744 |
|
|
case SPR_ICMP: |
1745 |
|
|
case SPR_DBSR: |
1746 |
|
|
case SPR_PIR: |
1747 |
|
|
break; |
1748 |
|
|
default:if (spr >= SPR_IBAT0U && spr <= SPR_DBAT3L) { |
1749 |
|
|
break; |
1750 |
|
|
} else |
1751 |
|
|
fatal("[ using UNIMPLEMENTED spr %i (%s), pc = " |
1752 |
|
|
"0x%llx ]\n", spr, ppc_spr_names[spr] == NULL? |
1753 |
|
|
"UNKNOWN" : ppc_spr_names[spr], (long long)pc); |
1754 |
|
|
} |
1755 |
|
|
|
1756 |
|
|
spr_used[spr >> 2] |= (1 << (spr & 3)); |
1757 |
|
|
} |
1758 |
|
|
|
1759 |
|
|
|
1760 |
|
|
/* |
1761 |
dpavlin |
14 |
* update_cr0(): |
1762 |
|
|
* |
1763 |
|
|
* Sets the top 4 bits of the CR register. |
1764 |
|
|
*/ |
1765 |
|
|
void update_cr0(struct cpu *cpu, uint64_t value) |
1766 |
|
|
{ |
1767 |
|
|
int c; |
1768 |
|
|
|
1769 |
|
|
if (cpu->cd.ppc.bits == 64) { |
1770 |
|
|
if ((int64_t)value < 0) |
1771 |
|
|
c = 8; |
1772 |
|
|
else if ((int64_t)value > 0) |
1773 |
|
|
c = 4; |
1774 |
|
|
else |
1775 |
|
|
c = 2; |
1776 |
|
|
} else { |
1777 |
|
|
if ((int32_t)value < 0) |
1778 |
|
|
c = 8; |
1779 |
|
|
else if ((int32_t)value > 0) |
1780 |
|
|
c = 4; |
1781 |
|
|
else |
1782 |
|
|
c = 2; |
1783 |
|
|
} |
1784 |
|
|
|
1785 |
|
|
/* SO bit, copied from XER: */ |
1786 |
dpavlin |
20 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
1787 |
dpavlin |
14 |
|
1788 |
|
|
cpu->cd.ppc.cr &= ~((uint32_t)0xf << 28); |
1789 |
|
|
cpu->cd.ppc.cr |= ((uint32_t)c << 28); |
1790 |
|
|
} |
1791 |
|
|
|
1792 |
|
|
|
1793 |
|
|
#include "memory_ppc.c" |
1794 |
|
|
|
1795 |
|
|
|
1796 |
|
|
#include "tmp_ppc_tail.c" |
1797 |
|
|
|