| 1 |
/* |
| 2 |
* Copyright (C) 2005-2006 Anders Gavare. All rights reserved. |
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* |
| 4 |
* Redistribution and use in source and binary forms, with or without |
| 5 |
* 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 |
| 8 |
* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
| 10 |
* 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 |
| 17 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 |
* 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.c,v 1.59 2006/06/24 21:47:23 debug Exp $ |
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* |
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* PowerPC/POWER CPU emulation. |
| 31 |
*/ |
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|
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#include <stdio.h> |
| 34 |
#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
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|
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#include "cpu.h" |
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#include "devices.h" |
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#include "machine.h" |
| 41 |
#include "memory.h" |
| 42 |
#include "misc.h" |
| 43 |
#include "of.h" |
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#include "opcodes_ppc.h" |
| 45 |
#include "ppc_bat.h" |
| 46 |
#include "ppc_pte.h" |
| 47 |
#include "ppc_spr.h" |
| 48 |
#include "ppc_spr_strings.h" |
| 49 |
#include "symbol.h" |
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|
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#define DYNTRANS_DUALMODE_32 |
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#include "tmp_ppc_head.c" |
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|
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|
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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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|
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|
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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 |
| 65 |
* 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, |
| 68 |
int cpu_id, char *cpu_type_name) |
| 69 |
{ |
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int any_cache = 0; |
| 71 |
int i, found; |
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struct ppc_cpu_type_def cpu_type_defs[] = PPC_CPU_TYPE_DEFS; |
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|
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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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|
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cpu->memory_rw = ppc_memory_rw; |
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|
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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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|
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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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cpu->cd.ppc.spr[SPR_PVR] = cpu->cd.ppc.cpu_type.pvr; |
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|
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/* cpu->cd.ppc.msr = PPC_MSR_IR | PPC_MSR_DR | |
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PPC_MSR_SF | PPC_MSR_FP; */ |
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|
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cpu->cd.ppc.spr[SPR_IBAT0U] = 0x00001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_IBAT0L] = 0x00000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_IBAT1U] = 0xc0001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_IBAT1L] = 0x00000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_IBAT3U] = 0xf0001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_IBAT3L] = 0xf0000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_DBAT0U] = 0x00001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_DBAT0L] = 0x00000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_DBAT1U] = 0xc0001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_DBAT1L] = 0x00000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_DBAT2U] = 0xe0001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_DBAT2L] = 0xe0000000 | BAT_PP_RW; |
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cpu->cd.ppc.spr[SPR_DBAT3U] = 0xf0001ffc | BAT_Vs; |
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cpu->cd.ppc.spr[SPR_DBAT3L] = 0xf0000000 | BAT_PP_RW; |
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|
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cpu->is_32bit = (cpu->cd.ppc.bits == 32)? 1 : 0; |
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|
| 118 |
if (cpu->is_32bit) { |
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cpu->update_translation_table = ppc32_update_translation_table; |
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cpu->invalidate_translation_caches = |
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ppc32_invalidate_translation_caches; |
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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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cpu->invalidate_translation_caches = |
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ppc_invalidate_translation_caches; |
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cpu->invalidate_code_translation = |
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ppc_invalidate_code_translation; |
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} |
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|
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cpu->translate_v2p = ppc_translate_v2p; |
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|
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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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|
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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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|
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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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|
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cpu->cd.ppc.spr[SPR_PIR] = cpu_id; |
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|
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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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/* |
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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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|
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return 1; |
| 170 |
} |
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|
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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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|
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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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|
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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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|
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debug(" (%i-bit ", cpu->cd.ppc.bits); |
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|
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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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|
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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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|
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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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|
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debug(")\n"); |
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} |
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|
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|
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/* |
| 231 |
* reg_access_msr(): |
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*/ |
| 233 |
void reg_access_msr(struct cpu *cpu, uint64_t *valuep, int writeflag, |
| 234 |
int check_for_interrupts) |
| 235 |
{ |
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uint64_t old = cpu->cd.ppc.msr; |
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|
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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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|
| 243 |
if (writeflag) { |
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cpu->cd.ppc.msr = *valuep; |
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|
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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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|
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if (cpu->cd.ppc.msr & PPC_MSR_IP) { |
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fatal("\n[ Reboot hack for NetBSD/prep. TODO: " |
| 258 |
"fix this. ]\n"); |
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cpu->running = 0; |
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} |
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} |
| 262 |
|
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/* TODO: Is the little-endian bit writable? */ |
| 264 |
|
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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; |
| 268 |
|
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if (!writeflag) |
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*valuep = cpu->cd.ppc.msr; |
| 271 |
|
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if (check_for_interrupts && cpu->cd.ppc.msr & PPC_MSR_EE) { |
| 273 |
if (cpu->cd.ppc.dec_intr_pending) { |
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ppc_exception(cpu, PPC_EXCEPTION_DEC); |
| 275 |
cpu->cd.ppc.dec_intr_pending = 0; |
| 276 |
} else if (cpu->cd.ppc.irq_asserted) |
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ppc_exception(cpu, PPC_EXCEPTION_EI); |
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} |
| 279 |
} |
| 280 |
|
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|
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/* |
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* ppc_exception(): |
| 284 |
*/ |
| 285 |
void ppc_exception(struct cpu *cpu, int exception_nr) |
| 286 |
{ |
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/* Save PC and MSR: */ |
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cpu->cd.ppc.spr[SPR_SRR0] = cpu->pc; |
| 289 |
|
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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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|
| 296 |
if (!quiet_mode) |
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fatal("[ PPC Exception 0x%x; pc=0x%"PRIx64" ]\n", exception_nr, |
| 298 |
(long long)cpu->pc); |
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|
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/* Disable External Interrupts, Recoverable Interrupt Mode, |
| 301 |
and go to Supervisor mode */ |
| 302 |
cpu->cd.ppc.msr &= ~(PPC_MSR_EE | PPC_MSR_RI | PPC_MSR_PR); |
| 303 |
|
| 304 |
cpu->pc = exception_nr * 0x100; |
| 305 |
if (cpu->cd.ppc.msr & PPC_MSR_IP) |
| 306 |
cpu->pc += 0xfff00000ULL; |
| 307 |
|
| 308 |
if (cpu->is_32bit) |
| 309 |
ppc32_pc_to_pointers(cpu); |
| 310 |
else |
| 311 |
ppc_pc_to_pointers(cpu); |
| 312 |
} |
| 313 |
|
| 314 |
|
| 315 |
/* |
| 316 |
* ppc_cpu_register_dump(): |
| 317 |
* |
| 318 |
* Dump cpu registers in a relatively readable format. |
| 319 |
* |
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* gprs: set to non-zero to dump GPRs and some special-purpose registers. |
| 321 |
* coprocs: if bit i is set, then we should dump registers from coproc i. |
| 322 |
*/ |
| 323 |
void ppc_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs) |
| 324 |
{ |
| 325 |
char *symbol; |
| 326 |
uint64_t offset, tmp; |
| 327 |
int i, x = cpu->cpu_id; |
| 328 |
int bits32 = cpu->cd.ppc.bits == 32; |
| 329 |
|
| 330 |
if (gprs) { |
| 331 |
/* Special registers (pc, ...) first: */ |
| 332 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 333 |
cpu->pc, &offset); |
| 334 |
|
| 335 |
debug("cpu%i: pc = 0x", x); |
| 336 |
if (bits32) |
| 337 |
debug("%08"PRIx32, (uint32_t)cpu->pc); |
| 338 |
else |
| 339 |
debug("%016"PRIx64, (uint64_t)cpu->pc); |
| 340 |
debug(" <%s>\n", symbol != NULL? symbol : " no symbol "); |
| 341 |
|
| 342 |
debug("cpu%i: lr = 0x", x); |
| 343 |
if (bits32) |
| 344 |
debug("%08"PRIx32, (uint32_t)cpu->cd.ppc.spr[SPR_LR]); |
| 345 |
else |
| 346 |
debug("%016"PRIx64, (uint64_t)cpu->cd.ppc.spr[SPR_LR]); |
| 347 |
debug(" cr = 0x%08"PRIx32, (uint32_t)cpu->cd.ppc.cr); |
| 348 |
|
| 349 |
if (bits32) |
| 350 |
debug(" "); |
| 351 |
else |
| 352 |
debug("\ncpu%i: ", x); |
| 353 |
debug("ctr = 0x", x); |
| 354 |
if (bits32) |
| 355 |
debug("%08"PRIx32, (uint32_t)cpu->cd.ppc.spr[SPR_CTR]); |
| 356 |
else |
| 357 |
debug("%016"PRIx64, (uint64_t)cpu->cd.ppc.spr[SPR_CTR]); |
| 358 |
|
| 359 |
debug(" xer = 0x", x); |
| 360 |
if (bits32) |
| 361 |
debug("%08"PRIx32, (uint32_t)cpu->cd.ppc.spr[SPR_XER]); |
| 362 |
else |
| 363 |
debug("%016"PRIx64, (uint64_t)cpu->cd.ppc.spr[SPR_XER]); |
| 364 |
|
| 365 |
debug("\n"); |
| 366 |
|
| 367 |
if (bits32) { |
| 368 |
/* 32-bit: */ |
| 369 |
for (i=0; i<PPC_NGPRS; i++) { |
| 370 |
if ((i % 4) == 0) |
| 371 |
debug("cpu%i:", x); |
| 372 |
debug(" r%02i = 0x%08x ", i, |
| 373 |
(int)cpu->cd.ppc.gpr[i]); |
| 374 |
if ((i % 4) == 3) |
| 375 |
debug("\n"); |
| 376 |
} |
| 377 |
} else { |
| 378 |
/* 64-bit: */ |
| 379 |
for (i=0; i<PPC_NGPRS; i++) { |
| 380 |
int r = (i >> 1) + ((i & 1) << 4); |
| 381 |
if ((i % 2) == 0) |
| 382 |
debug("cpu%i:", x); |
| 383 |
debug(" r%02i = 0x%016llx ", r, |
| 384 |
(long long)cpu->cd.ppc.gpr[r]); |
| 385 |
if ((i % 2) == 1) |
| 386 |
debug("\n"); |
| 387 |
} |
| 388 |
} |
| 389 |
|
| 390 |
/* Other special registers: */ |
| 391 |
if (bits32) { |
| 392 |
debug("cpu%i: srr0 = 0x%08x srr1 = 0x%08x\n", x, |
| 393 |
(int)cpu->cd.ppc.spr[SPR_SRR0], |
| 394 |
(int)cpu->cd.ppc.spr[SPR_SRR1]); |
| 395 |
} else { |
| 396 |
debug("cpu%i: srr0 = 0x%016llx srr1 = 0x%016llx\n", x, |
| 397 |
(long long)cpu->cd.ppc.spr[SPR_SRR0], |
| 398 |
(long long)cpu->cd.ppc.spr[SPR_SRR1]); |
| 399 |
} |
| 400 |
debug("cpu%i: msr = ", x); |
| 401 |
reg_access_msr(cpu, &tmp, 0, 0); |
| 402 |
if (bits32) |
| 403 |
debug("0x%08x ", (int)tmp); |
| 404 |
else |
| 405 |
debug("0x%016llx ", (long long)tmp); |
| 406 |
debug("tb = 0x%08x%08x\n", (int)cpu->cd.ppc.spr[SPR_TBU], |
| 407 |
(int)cpu->cd.ppc.spr[SPR_TBL]); |
| 408 |
debug("cpu%i: dec = 0x%08x", x, (int)cpu->cd.ppc.spr[SPR_DEC]); |
| 409 |
if (!bits32) |
| 410 |
debug(" hdec = 0x%08x\n", |
| 411 |
(int)cpu->cd.ppc.spr[SPR_HDEC]); |
| 412 |
debug("\n"); |
| 413 |
} |
| 414 |
|
| 415 |
if (coprocs & 1) { |
| 416 |
debug("cpu%i: fpscr = 0x%08x\n", x, (int)cpu->cd.ppc.fpscr); |
| 417 |
|
| 418 |
/* TODO: show floating-point values :-) */ |
| 419 |
|
| 420 |
/* TODO: 32-bit fprs on 32-bit PPC cpus? */ |
| 421 |
|
| 422 |
for (i=0; i<PPC_NFPRS; i++) { |
| 423 |
if ((i % 2) == 0) |
| 424 |
debug("cpu%i:", x); |
| 425 |
debug(" f%02i = 0x%016llx ", i, |
| 426 |
(long long)cpu->cd.ppc.fpr[i]); |
| 427 |
if ((i % 2) == 1) |
| 428 |
debug("\n"); |
| 429 |
} |
| 430 |
} |
| 431 |
|
| 432 |
if (coprocs & 2) { |
| 433 |
debug("cpu%i: sdr1 = 0x%llx\n", x, |
| 434 |
(long long)cpu->cd.ppc.spr[SPR_SDR1]); |
| 435 |
if (cpu->cd.ppc.cpu_type.flags & PPC_601) |
| 436 |
debug("cpu%i: PPC601-style, TODO!\n"); |
| 437 |
else { |
| 438 |
for (i=0; i<8; i++) { |
| 439 |
int spr = SPR_IBAT0U + i*2; |
| 440 |
uint32_t upper = cpu->cd.ppc.spr[spr]; |
| 441 |
uint32_t lower = cpu->cd.ppc.spr[spr+1]; |
| 442 |
uint32_t len = (((upper & BAT_BL) << 15) |
| 443 |
| 0x1ffff) + 1; |
| 444 |
debug("cpu%i: %sbat%i: u=0x%08x l=0x%08x ", |
| 445 |
x, i<4? "i" : "d", i&3, upper, lower); |
| 446 |
if (!(upper & BAT_V)) { |
| 447 |
debug(" (not valid)\n"); |
| 448 |
continue; |
| 449 |
} |
| 450 |
if (len < 1048576) |
| 451 |
debug(" (%i KB, ", len >> 10); |
| 452 |
else |
| 453 |
debug(" (%i MB, ", len >> 20); |
| 454 |
if (upper & BAT_Vu) |
| 455 |
debug("user, "); |
| 456 |
if (upper & BAT_Vs) |
| 457 |
debug("supervisor, "); |
| 458 |
if (lower & (BAT_W | BAT_I | BAT_M | BAT_G)) |
| 459 |
debug("%s%s%s%s, ", |
| 460 |
lower & BAT_W? "W" : "", |
| 461 |
lower & BAT_I? "I" : "", |
| 462 |
lower & BAT_M? "M" : "", |
| 463 |
lower & BAT_G? "G" : ""); |
| 464 |
switch (lower & BAT_PP) { |
| 465 |
case BAT_PP_NONE: debug("NO access"); break; |
| 466 |
case BAT_PP_RO_S: debug("read-only, soft"); |
| 467 |
break; |
| 468 |
case BAT_PP_RO: debug("read-only"); break; |
| 469 |
case BAT_PP_RW: debug("read/write"); break; |
| 470 |
} |
| 471 |
debug(")\n"); |
| 472 |
} |
| 473 |
} |
| 474 |
} |
| 475 |
|
| 476 |
if (coprocs & 4) { |
| 477 |
for (i=0; i<16; i++) { |
| 478 |
uint32_t s = cpu->cd.ppc.sr[i]; |
| 479 |
debug("cpu%i:", x); |
| 480 |
debug(" sr%2i = 0x%08x", i, (int)s); |
| 481 |
s &= (SR_TYPE | SR_SUKEY | SR_PRKEY | SR_NOEXEC); |
| 482 |
if (s != 0) { |
| 483 |
debug(" ("); |
| 484 |
if (s & SR_TYPE) { |
| 485 |
debug("NON-memory type"); |
| 486 |
s &= ~SR_TYPE; |
| 487 |
if (s != 0) |
| 488 |
debug(", "); |
| 489 |
} |
| 490 |
if (s & SR_SUKEY) { |
| 491 |
debug("supervisor-key"); |
| 492 |
s &= ~SR_SUKEY; |
| 493 |
if (s != 0) |
| 494 |
debug(", "); |
| 495 |
} |
| 496 |
if (s & SR_PRKEY) { |
| 497 |
debug("user-key"); |
| 498 |
s &= ~SR_PRKEY; |
| 499 |
if (s != 0) |
| 500 |
debug(", "); |
| 501 |
} |
| 502 |
if (s & SR_NOEXEC) |
| 503 |
debug("NOEXEC"); |
| 504 |
debug(")"); |
| 505 |
} |
| 506 |
debug("\n"); |
| 507 |
} |
| 508 |
} |
| 509 |
} |
| 510 |
|
| 511 |
|
| 512 |
/* |
| 513 |
* ppc_cpu_register_match(): |
| 514 |
*/ |
| 515 |
void ppc_cpu_register_match(struct machine *m, char *name, |
| 516 |
int writeflag, uint64_t *valuep, int *match_register) |
| 517 |
{ |
| 518 |
int cpunr = 0; |
| 519 |
|
| 520 |
/* CPU number: */ |
| 521 |
|
| 522 |
/* TODO */ |
| 523 |
|
| 524 |
/* Register name: */ |
| 525 |
if (strcasecmp(name, "pc") == 0) { |
| 526 |
if (writeflag) { |
| 527 |
m->cpus[cpunr]->pc = *valuep; |
| 528 |
} else |
| 529 |
*valuep = m->cpus[cpunr]->pc; |
| 530 |
*match_register = 1; |
| 531 |
} else if (strcasecmp(name, "msr") == 0) { |
| 532 |
if (writeflag) |
| 533 |
m->cpus[cpunr]->cd.ppc.msr = *valuep; |
| 534 |
else |
| 535 |
*valuep = m->cpus[cpunr]->cd.ppc.msr; |
| 536 |
*match_register = 1; |
| 537 |
} else if (strcasecmp(name, "lr") == 0) { |
| 538 |
if (writeflag) |
| 539 |
m->cpus[cpunr]->cd.ppc.spr[SPR_LR] = *valuep; |
| 540 |
else |
| 541 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_LR]; |
| 542 |
*match_register = 1; |
| 543 |
} else if (strcasecmp(name, "cr") == 0) { |
| 544 |
if (writeflag) |
| 545 |
m->cpus[cpunr]->cd.ppc.cr = *valuep; |
| 546 |
else |
| 547 |
*valuep = m->cpus[cpunr]->cd.ppc.cr; |
| 548 |
*match_register = 1; |
| 549 |
} else if (strcasecmp(name, "dec") == 0) { |
| 550 |
if (writeflag) |
| 551 |
m->cpus[cpunr]->cd.ppc.spr[SPR_DEC] = *valuep; |
| 552 |
else |
| 553 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_DEC]; |
| 554 |
*match_register = 1; |
| 555 |
} else if (strcasecmp(name, "hdec") == 0) { |
| 556 |
if (writeflag) |
| 557 |
m->cpus[cpunr]->cd.ppc.spr[SPR_HDEC] = *valuep; |
| 558 |
else |
| 559 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_HDEC]; |
| 560 |
*match_register = 1; |
| 561 |
} else if (strcasecmp(name, "ctr") == 0) { |
| 562 |
if (writeflag) |
| 563 |
m->cpus[cpunr]->cd.ppc.spr[SPR_CTR] = *valuep; |
| 564 |
else |
| 565 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_CTR]; |
| 566 |
*match_register = 1; |
| 567 |
} else if (name[0] == 'r' && isdigit((int)name[1])) { |
| 568 |
int nr = atoi(name + 1); |
| 569 |
if (nr >= 0 && nr < PPC_NGPRS) { |
| 570 |
if (writeflag) { |
| 571 |
m->cpus[cpunr]->cd.ppc.gpr[nr] = *valuep; |
| 572 |
} else |
| 573 |
*valuep = m->cpus[cpunr]->cd.ppc.gpr[nr]; |
| 574 |
*match_register = 1; |
| 575 |
} |
| 576 |
} else if (strcasecmp(name, "xer") == 0) { |
| 577 |
if (writeflag) |
| 578 |
m->cpus[cpunr]->cd.ppc.spr[SPR_XER] = *valuep; |
| 579 |
else |
| 580 |
*valuep = m->cpus[cpunr]->cd.ppc.spr[SPR_XER]; |
| 581 |
*match_register = 1; |
| 582 |
} else if (strcasecmp(name, "fpscr") == 0) { |
| 583 |
if (writeflag) |
| 584 |
m->cpus[cpunr]->cd.ppc.fpscr = *valuep; |
| 585 |
else |
| 586 |
*valuep = m->cpus[cpunr]->cd.ppc.fpscr; |
| 587 |
*match_register = 1; |
| 588 |
} else if (name[0] == 'f' && isdigit((int)name[1])) { |
| 589 |
int nr = atoi(name + 1); |
| 590 |
if (nr >= 0 && nr < PPC_NFPRS) { |
| 591 |
if (writeflag) { |
| 592 |
m->cpus[cpunr]->cd.ppc.fpr[nr] = *valuep; |
| 593 |
} else |
| 594 |
*valuep = m->cpus[cpunr]->cd.ppc.fpr[nr]; |
| 595 |
*match_register = 1; |
| 596 |
} |
| 597 |
} |
| 598 |
} |
| 599 |
|
| 600 |
|
| 601 |
/* |
| 602 |
* ppc_cpu_tlbdump(): |
| 603 |
* |
| 604 |
* Not currently used for PPC. |
| 605 |
*/ |
| 606 |
void ppc_cpu_tlbdump(struct machine *m, int x, int rawflag) |
| 607 |
{ |
| 608 |
} |
| 609 |
|
| 610 |
|
| 611 |
static void add_response_word(struct cpu *cpu, char *r, uint64_t value, |
| 612 |
size_t maxlen, int len) |
| 613 |
{ |
| 614 |
char *format = (len == 4)? "%08"PRIx64 : "%016"PRIx64; |
| 615 |
if (len == 4) |
| 616 |
value &= 0xffffffffULL; |
| 617 |
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) { |
| 618 |
if (len == 4) { |
| 619 |
value = ((value & 0xff) << 24) + |
| 620 |
((value & 0xff00) << 8) + |
| 621 |
((value & 0xff0000) >> 8) + |
| 622 |
((value & 0xff000000) >> 24); |
| 623 |
} else { |
| 624 |
value = ((value & 0xff) << 56) + |
| 625 |
((value & 0xff00) << 40) + |
| 626 |
((value & 0xff0000) << 24) + |
| 627 |
((value & 0xff000000ULL) << 8) + |
| 628 |
((value & 0xff00000000ULL) >> 8) + |
| 629 |
((value & 0xff0000000000ULL) >> 24) + |
| 630 |
((value & 0xff000000000000ULL) >> 40) + |
| 631 |
((value & 0xff00000000000000ULL) >> 56); |
| 632 |
} |
| 633 |
} |
| 634 |
snprintf(r + strlen(r), maxlen - strlen(r), format, (uint64_t)value); |
| 635 |
} |
| 636 |
|
| 637 |
|
| 638 |
/* |
| 639 |
* ppc_cpu_gdb_stub(): |
| 640 |
* |
| 641 |
* Execute a "remote GDB" command. Returns a newly allocated response string |
| 642 |
* on success, NULL on failure. |
| 643 |
*/ |
| 644 |
char *ppc_cpu_gdb_stub(struct cpu *cpu, char *cmd) |
| 645 |
{ |
| 646 |
if (strcmp(cmd, "g") == 0) { |
| 647 |
int i; |
| 648 |
char *r; |
| 649 |
size_t wlen = cpu->is_32bit? |
| 650 |
sizeof(uint32_t) : sizeof(uint64_t); |
| 651 |
size_t len = 1 + 76 * wlen; |
| 652 |
r = malloc(len); |
| 653 |
if (r == NULL) { |
| 654 |
fprintf(stderr, "out of memory\n"); |
| 655 |
exit(1); |
| 656 |
} |
| 657 |
r[0] = '\0'; |
| 658 |
for (i=0; i<128; i++) |
| 659 |
add_response_word(cpu, r, i, len, wlen); |
| 660 |
return r; |
| 661 |
} |
| 662 |
|
| 663 |
if (cmd[0] == 'p') { |
| 664 |
int regnr = strtol(cmd + 1, NULL, 16); |
| 665 |
size_t wlen = cpu->is_32bit? |
| 666 |
sizeof(uint32_t) : sizeof(uint64_t); |
| 667 |
size_t len = 2 * wlen + 1; |
| 668 |
char *r = malloc(len); |
| 669 |
r[0] = '\0'; |
| 670 |
if (regnr >= 0 && regnr <= 31) { |
| 671 |
add_response_word(cpu, r, |
| 672 |
cpu->cd.ppc.gpr[regnr], len, wlen); |
| 673 |
} else if (regnr == 0x40) { |
| 674 |
add_response_word(cpu, r, cpu->pc, len, wlen); |
| 675 |
} else if (regnr == 0x42) { |
| 676 |
add_response_word(cpu, r, cpu->cd.ppc.cr, len, wlen); |
| 677 |
} else if (regnr == 0x43) { |
| 678 |
add_response_word(cpu, r, cpu->cd.ppc.spr[SPR_LR], |
| 679 |
len, wlen); |
| 680 |
} else if (regnr == 0x44) { |
| 681 |
add_response_word(cpu, r, cpu->cd.ppc.spr[SPR_CTR], |
| 682 |
len, wlen); |
| 683 |
} else if (regnr == 0x45) { |
| 684 |
add_response_word(cpu, r, cpu->cd.ppc.spr[SPR_XER], |
| 685 |
len, wlen); |
| 686 |
} else { |
| 687 |
/* Unimplemented: */ |
| 688 |
add_response_word(cpu, r, 0xcc000 + regnr, len, wlen); |
| 689 |
} |
| 690 |
return r; |
| 691 |
} |
| 692 |
|
| 693 |
fatal("ppc_cpu_gdb_stub(): TODO\n"); |
| 694 |
return NULL; |
| 695 |
} |
| 696 |
|
| 697 |
|
| 698 |
/* |
| 699 |
* ppc_cpu_interrupt(): |
| 700 |
* |
| 701 |
* 0..31 are used as BeBox interrupt numbers, 32..47 = ISA, |
| 702 |
* 64 is used as a "re-assert" signal to cpu->machine->md_interrupt(). |
| 703 |
* |
| 704 |
* TODO: don't hardcode to BeBox! |
| 705 |
*/ |
| 706 |
int ppc_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr) |
| 707 |
{ |
| 708 |
/* fatal("ppc_cpu_interrupt(): 0x%x\n", (int)irq_nr); */ |
| 709 |
if (irq_nr <= 64) { |
| 710 |
if (cpu->machine->md_interrupt != NULL) |
| 711 |
cpu->machine->md_interrupt( |
| 712 |
cpu->machine, cpu, irq_nr, 1); |
| 713 |
else |
| 714 |
fatal("ppc_cpu_interrupt(): md_interrupt == NULL\n"); |
| 715 |
} else { |
| 716 |
/* Assert PPC IRQ: */ |
| 717 |
cpu->cd.ppc.irq_asserted = 1; |
| 718 |
} |
| 719 |
return 1; |
| 720 |
} |
| 721 |
|
| 722 |
|
| 723 |
/* |
| 724 |
* ppc_cpu_interrupt_ack(): |
| 725 |
*/ |
| 726 |
int ppc_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr) |
| 727 |
{ |
| 728 |
if (irq_nr <= 64) { |
| 729 |
if (cpu->machine->md_interrupt != NULL) |
| 730 |
cpu->machine->md_interrupt(cpu->machine, |
| 731 |
cpu, irq_nr, 0); |
| 732 |
} else { |
| 733 |
/* De-assert PPC IRQ: */ |
| 734 |
cpu->cd.ppc.irq_asserted = 0; |
| 735 |
} |
| 736 |
return 1; |
| 737 |
} |
| 738 |
|
| 739 |
|
| 740 |
/* |
| 741 |
* ppc_cpu_disassemble_instr(): |
| 742 |
* |
| 743 |
* Convert an instruction word into human readable format, for instruction |
| 744 |
* tracing. |
| 745 |
* |
| 746 |
* If running is 1, cpu->pc should be the address of the instruction. |
| 747 |
* |
| 748 |
* If running is 0, things that depend on the runtime environment (eg. |
| 749 |
* register contents) will not be shown, and addr will be used instead of |
| 750 |
* cpu->pc for relative addresses. |
| 751 |
*/ |
| 752 |
int ppc_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
| 753 |
int running, uint64_t dumpaddr) |
| 754 |
{ |
| 755 |
int hi6, xo, lev, rt, rs, ra, rb, imm, sh, me, rc, l_bit, oe_bit; |
| 756 |
int spr, aa_bit, lk_bit, bf, bh, bi, bo, mb, nb, bt, ba, bb, fpreg; |
| 757 |
int bfa, to, load, wlen, no_rb = 0; |
| 758 |
uint64_t offset, addr; |
| 759 |
uint32_t iword; |
| 760 |
char *symbol, *mnem = "ERROR"; |
| 761 |
int power = cpu->cd.ppc.mode == MODE_POWER; |
| 762 |
|
| 763 |
if (running) |
| 764 |
dumpaddr = cpu->pc; |
| 765 |
|
| 766 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 767 |
dumpaddr, &offset); |
| 768 |
if (symbol != NULL && offset==0) |
| 769 |
debug("<%s>\n", symbol); |
| 770 |
|
| 771 |
if (cpu->machine->ncpus > 1 && running) |
| 772 |
debug("cpu%i: ", cpu->cpu_id); |
| 773 |
|
| 774 |
if (cpu->cd.ppc.bits == 32) |
| 775 |
debug("%08x", (int)dumpaddr); |
| 776 |
else |
| 777 |
debug("%016llx", (long long)dumpaddr); |
| 778 |
|
| 779 |
/* NOTE: Fixed to big-endian. */ |
| 780 |
iword = (instr[0] << 24) + (instr[1] << 16) + (instr[2] << 8) |
| 781 |
+ instr[3]; |
| 782 |
|
| 783 |
debug(": %08x\t", iword); |
| 784 |
|
| 785 |
/* |
| 786 |
* Decode the instruction: |
| 787 |
*/ |
| 788 |
|
| 789 |
hi6 = iword >> 26; |
| 790 |
|
| 791 |
switch (hi6) { |
| 792 |
case 0x4: |
| 793 |
debug("ALTIVEC TODO"); |
| 794 |
/* vxor etc */ |
| 795 |
break; |
| 796 |
case PPC_HI6_MULLI: |
| 797 |
case PPC_HI6_SUBFIC: |
| 798 |
rt = (iword >> 21) & 31; |
| 799 |
ra = (iword >> 16) & 31; |
| 800 |
imm = (int16_t)(iword & 0xffff); |
| 801 |
switch (hi6) { |
| 802 |
case PPC_HI6_MULLI: |
| 803 |
mnem = power? "muli":"mulli"; |
| 804 |
break; |
| 805 |
case PPC_HI6_SUBFIC: |
| 806 |
mnem = power? "sfi":"subfic"; |
| 807 |
break; |
| 808 |
} |
| 809 |
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
| 810 |
break; |
| 811 |
case PPC_HI6_CMPLI: |
| 812 |
case PPC_HI6_CMPI: |
| 813 |
bf = (iword >> 23) & 7; |
| 814 |
l_bit = (iword >> 21) & 1; |
| 815 |
ra = (iword >> 16) & 31; |
| 816 |
if (hi6 == PPC_HI6_CMPLI) { |
| 817 |
imm = iword & 0xffff; |
| 818 |
mnem = "cmpl"; |
| 819 |
} else { |
| 820 |
imm = (int16_t)(iword & 0xffff); |
| 821 |
mnem = "cmp"; |
| 822 |
} |
| 823 |
debug("%s%si\t", mnem, l_bit? "d" : "w"); |
| 824 |
if (bf != 0) |
| 825 |
debug("cr%i,", bf); |
| 826 |
debug("r%i,%i", ra, imm); |
| 827 |
break; |
| 828 |
case PPC_HI6_ADDIC: |
| 829 |
case PPC_HI6_ADDIC_DOT: |
| 830 |
rt = (iword >> 21) & 31; |
| 831 |
ra = (iword >> 16) & 31; |
| 832 |
rc = hi6 == PPC_HI6_ADDIC_DOT; |
| 833 |
imm = (int16_t)(iword & 0xffff); |
| 834 |
mnem = power? "ai":"addic"; |
| 835 |
if (imm < 0 && !power) { |
| 836 |
mnem = "subic"; |
| 837 |
imm = -imm; |
| 838 |
} |
| 839 |
debug("%s%s\tr%i,r%i,%i", mnem, rc?".":"", rt, ra, imm); |
| 840 |
break; |
| 841 |
case PPC_HI6_ADDI: |
| 842 |
rt = (iword >> 21) & 31; |
| 843 |
ra = (iword >> 16) & 31; |
| 844 |
imm = (int16_t)(iword & 0xffff); |
| 845 |
if (ra == 0) |
| 846 |
debug("li\tr%i,%i", rt, imm); |
| 847 |
else { |
| 848 |
mnem = power? "cal":"addi"; |
| 849 |
if (imm < 0 && !power) { |
| 850 |
mnem = "subi"; |
| 851 |
imm = -imm; |
| 852 |
} |
| 853 |
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
| 854 |
} |
| 855 |
break; |
| 856 |
case PPC_HI6_ADDIS: |
| 857 |
rt = (iword >> 21) & 31; |
| 858 |
ra = (iword >> 16) & 31; |
| 859 |
imm = (int16_t)(iword & 0xffff); |
| 860 |
if (ra == 0) |
| 861 |
debug("lis\tr%i,%i", rt, imm); |
| 862 |
else |
| 863 |
debug("%s\tr%i,r%i,%i", |
| 864 |
power? "cau":"addis", rt, ra, imm); |
| 865 |
break; |
| 866 |
case PPC_HI6_BC: |
| 867 |
aa_bit = (iword & 2) >> 1; |
| 868 |
lk_bit = iword & 1; |
| 869 |
bo = (iword >> 21) & 31; |
| 870 |
bi = (iword >> 16) & 31; |
| 871 |
/* Sign-extend addr: */ |
| 872 |
addr = (int64_t)(int16_t)(iword & 0xfffc); |
| 873 |
debug("bc"); |
| 874 |
if (lk_bit) |
| 875 |
debug("l"); |
| 876 |
if (aa_bit) |
| 877 |
debug("a"); |
| 878 |
else |
| 879 |
addr += dumpaddr; |
| 880 |
debug("\t%i,%i,", bo, bi); |
| 881 |
if (cpu->cd.ppc.bits == 32) |
| 882 |
addr &= 0xffffffff; |
| 883 |
if (cpu->cd.ppc.bits == 32) |
| 884 |
debug("0x%x", (int)addr); |
| 885 |
else |
| 886 |
debug("0x%llx", (long long)addr); |
| 887 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 888 |
addr, &offset); |
| 889 |
if (symbol != NULL) |
| 890 |
debug("\t<%s>", symbol); |
| 891 |
break; |
| 892 |
case PPC_HI6_SC: |
| 893 |
lev = (iword >> 5) & 0x7f; |
| 894 |
debug("sc"); |
| 895 |
if (lev != 0) { |
| 896 |
debug("\t%i", lev); |
| 897 |
if (lev > 1) |
| 898 |
debug(" (WARNING! reserved value)"); |
| 899 |
} |
| 900 |
break; |
| 901 |
case PPC_HI6_B: |
| 902 |
aa_bit = (iword & 2) >> 1; |
| 903 |
lk_bit = iword & 1; |
| 904 |
/* Sign-extend addr: */ |
| 905 |
addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
| 906 |
addr = (int64_t)addr >> 6; |
| 907 |
debug("b"); |
| 908 |
if (lk_bit) |
| 909 |
debug("l"); |
| 910 |
if (aa_bit) |
| 911 |
debug("a"); |
| 912 |
else |
| 913 |
addr += dumpaddr; |
| 914 |
if (cpu->cd.ppc.bits == 32) |
| 915 |
addr &= 0xffffffff; |
| 916 |
if (cpu->cd.ppc.bits == 32) |
| 917 |
debug("\t0x%x", (int)addr); |
| 918 |
else |
| 919 |
debug("\t0x%llx", (long long)addr); |
| 920 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 921 |
addr, &offset); |
| 922 |
if (symbol != NULL) |
| 923 |
debug("\t<%s>", symbol); |
| 924 |
break; |
| 925 |
case PPC_HI6_19: |
| 926 |
xo = (iword >> 1) & 1023; |
| 927 |
switch (xo) { |
| 928 |
case PPC_19_MCRF: |
| 929 |
bf = (iword >> 23) & 7; |
| 930 |
bfa = (iword >> 18) & 7; |
| 931 |
debug("mcrf\tcr%i,cr%i", bf, bfa); |
| 932 |
break; |
| 933 |
case PPC_19_RFI: |
| 934 |
debug("rfi"); |
| 935 |
break; |
| 936 |
case PPC_19_RFID: |
| 937 |
debug("rfid"); |
| 938 |
break; |
| 939 |
case PPC_19_RFSVC: |
| 940 |
debug("rfsvc%s", power?"":"\t(INVALID for PowerPC)"); |
| 941 |
break; |
| 942 |
case PPC_19_BCLR: |
| 943 |
case PPC_19_BCCTR: |
| 944 |
bo = (iword >> 21) & 31; |
| 945 |
bi = (iword >> 16) & 31; |
| 946 |
bh = (iword >> 11) & 3; |
| 947 |
lk_bit = iword & 1; |
| 948 |
switch (xo) { |
| 949 |
case PPC_19_BCLR: |
| 950 |
mnem = power? "bcr" : "bclr"; break; |
| 951 |
case PPC_19_BCCTR: |
| 952 |
mnem = power? "bcc" : "bcctr"; break; |
| 953 |
} |
| 954 |
debug("%s%s%s\t%i,%i,%i", mnem, lk_bit? "l" : "", |
| 955 |
bh? (bh==3? "+" : (bh==2? "-" : "?")) : "", |
| 956 |
bo, bi, bh); |
| 957 |
break; |
| 958 |
case PPC_19_ISYNC: |
| 959 |
debug("%s", power? "ics" : "isync"); |
| 960 |
break; |
| 961 |
case PPC_19_CRAND: |
| 962 |
case PPC_19_CRXOR: |
| 963 |
case PPC_19_CROR: |
| 964 |
case PPC_19_CRNAND: |
| 965 |
case PPC_19_CRNOR: |
| 966 |
case PPC_19_CRANDC: |
| 967 |
case PPC_19_CREQV: |
| 968 |
case PPC_19_CRORC: |
| 969 |
bt = (iword >> 21) & 31; |
| 970 |
ba = (iword >> 16) & 31; |
| 971 |
bb = (iword >> 11) & 31; |
| 972 |
switch (xo) { |
| 973 |
case PPC_19_CRAND: mnem = "crand"; break; |
| 974 |
case PPC_19_CRXOR: mnem = "crxor"; break; |
| 975 |
case PPC_19_CROR: mnem = "cror"; break; |
| 976 |
case PPC_19_CRNAND: mnem = "crnand"; break; |
| 977 |
case PPC_19_CRNOR: mnem = "crnor"; break; |
| 978 |
case PPC_19_CRANDC: mnem = "crandc"; break; |
| 979 |
case PPC_19_CREQV: mnem = "creqv"; break; |
| 980 |
case PPC_19_CRORC: mnem = "crorc"; break; |
| 981 |
} |
| 982 |
debug("%s\t%i,%i,%i", mnem, bt, ba, bb); |
| 983 |
break; |
| 984 |
default: |
| 985 |
debug("unimplemented hi6_19, xo = 0x%x", xo); |
| 986 |
} |
| 987 |
break; |
| 988 |
case PPC_HI6_RLWNM: |
| 989 |
case PPC_HI6_RLWIMI: |
| 990 |
case PPC_HI6_RLWINM: |
| 991 |
rs = (iword >> 21) & 31; |
| 992 |
ra = (iword >> 16) & 31; |
| 993 |
sh = (iword >> 11) & 31; /* actually rb for rlwnm */ |
| 994 |
mb = (iword >> 6) & 31; |
| 995 |
me = (iword >> 1) & 31; |
| 996 |
rc = iword & 1; |
| 997 |
switch (hi6) { |
| 998 |
case PPC_HI6_RLWNM: |
| 999 |
mnem = power? "rlnm" : "rlwnm"; break; |
| 1000 |
case PPC_HI6_RLWIMI: |
| 1001 |
mnem = power? "rlimi" : "rlwimi"; break; |
| 1002 |
case PPC_HI6_RLWINM: |
| 1003 |
mnem = power? "rlinm" : "rlwinm"; break; |
| 1004 |
} |
| 1005 |
debug("%s%s\tr%i,r%i,%s%i,%i,%i", |
| 1006 |
mnem, rc?".":"", ra, rs, |
| 1007 |
hi6 == PPC_HI6_RLWNM? "r" : "", |
| 1008 |
sh, mb, me); |
| 1009 |
break; |
| 1010 |
case PPC_HI6_ORI: |
| 1011 |
case PPC_HI6_ORIS: |
| 1012 |
case PPC_HI6_XORI: |
| 1013 |
case PPC_HI6_XORIS: |
| 1014 |
case PPC_HI6_ANDI_DOT: |
| 1015 |
case PPC_HI6_ANDIS_DOT: |
| 1016 |
rs = (iword >> 21) & 31; |
| 1017 |
ra = (iword >> 16) & 31; |
| 1018 |
imm = iword & 0xffff; |
| 1019 |
switch (hi6) { |
| 1020 |
case PPC_HI6_ORI: |
| 1021 |
mnem = power? "oril":"ori"; |
| 1022 |
break; |
| 1023 |
case PPC_HI6_ORIS: |
| 1024 |
mnem = power? "oriu":"oris"; |
| 1025 |
break; |
| 1026 |
case PPC_HI6_XORI: |
| 1027 |
mnem = power? "xoril":"xori"; |
| 1028 |
break; |
| 1029 |
case PPC_HI6_XORIS: |
| 1030 |
mnem = power? "xoriu":"xoris"; |
| 1031 |
break; |
| 1032 |
case PPC_HI6_ANDI_DOT: |
| 1033 |
mnem = power? "andil.":"andi."; |
| 1034 |
break; |
| 1035 |
case PPC_HI6_ANDIS_DOT: |
| 1036 |
mnem = power? "andiu.":"andis."; |
| 1037 |
break; |
| 1038 |
} |
| 1039 |
if (hi6 == PPC_HI6_ORI && rs == 0 && ra == 0 && imm == 0) |
| 1040 |
debug("nop"); |
| 1041 |
else |
| 1042 |
debug("%s\tr%i,r%i,0x%04x", mnem, ra, rs, imm); |
| 1043 |
break; |
| 1044 |
case PPC_HI6_30: |
| 1045 |
xo = (iword >> 2) & 7; |
| 1046 |
switch (xo) { |
| 1047 |
case PPC_30_RLDICL: |
| 1048 |
case PPC_30_RLDICR: |
| 1049 |
case PPC_30_RLDIMI: /* mb, not me */ |
| 1050 |
mnem = NULL; |
| 1051 |
switch (xo) { |
| 1052 |
case PPC_30_RLDICL: mnem = "rldicl"; break; |
| 1053 |
case PPC_30_RLDICR: mnem = "rldicr"; break; |
| 1054 |
case PPC_30_RLDIMI: mnem = "rldimi"; break; |
| 1055 |
} |
| 1056 |
rs = (iword >> 21) & 31; |
| 1057 |
ra = (iword >> 16) & 31; |
| 1058 |
sh = ((iword >> 11) & 31) | ((iword & 2) << 4); |
| 1059 |
me = ((iword >> 6) & 31) | (iword & 0x20); |
| 1060 |
rc = iword & 1; |
| 1061 |
debug("%s%s\tr%i,r%i,%i,%i", |
| 1062 |
mnem, rc?".":"", ra, rs, sh, me); |
| 1063 |
break; |
| 1064 |
default: |
| 1065 |
debug("unimplemented hi6_30, xo = 0x%x", xo); |
| 1066 |
} |
| 1067 |
break; |
| 1068 |
case PPC_HI6_31: |
| 1069 |
xo = (iword >> 1) & 1023; |
| 1070 |
switch (xo) { |
| 1071 |
|
| 1072 |
case PPC_31_CMP: |
| 1073 |
case PPC_31_CMPL: |
| 1074 |
bf = (iword >> 23) & 7; |
| 1075 |
l_bit = (iword >> 21) & 1; |
| 1076 |
ra = (iword >> 16) & 31; |
| 1077 |
rb = (iword >> 11) & 31; |
| 1078 |
if (xo == PPC_31_CMPL) |
| 1079 |
mnem = "cmpl"; |
| 1080 |
else |
| 1081 |
mnem = "cmp"; |
| 1082 |
debug("%s%s\t", mnem, l_bit? "d" : "w"); |
| 1083 |
if (bf != 0) |
| 1084 |
debug("cr%i,", bf); |
| 1085 |
debug("r%i,r%i", ra, rb); |
| 1086 |
break; |
| 1087 |
case PPC_31_MFCR: |
| 1088 |
rt = (iword >> 21) & 31; |
| 1089 |
debug("mfcr\tr%i", rt); |
| 1090 |
break; |
| 1091 |
case PPC_31_MFMSR: |
| 1092 |
rt = (iword >> 21) & 31; |
| 1093 |
debug("mfmsr\tr%i", rt); |
| 1094 |
break; |
| 1095 |
case PPC_31_MTCRF: |
| 1096 |
rs = (iword >> 21) & 31; |
| 1097 |
mb = (iword >> 12) & 255; /* actually fxm, not mb */ |
| 1098 |
debug("mtcrf\t%i,r%i", mb, rs); |
| 1099 |
break; |
| 1100 |
case PPC_31_MTMSR: |
| 1101 |
rs = (iword >> 21) & 31; |
| 1102 |
l_bit = (iword >> 16) & 1; |
| 1103 |
debug("mtmsr\tr%i", rs); |
| 1104 |
if (l_bit) |
| 1105 |
debug(",%i", l_bit); |
| 1106 |
break; |
| 1107 |
case PPC_31_TW: |
| 1108 |
case PPC_31_TD: |
| 1109 |
to = (iword >> 21) & 31; |
| 1110 |
ra = (iword >> 16) & 31; |
| 1111 |
rb = (iword >> 11) & 31; |
| 1112 |
switch (xo) { |
| 1113 |
case PPC_31_TW: mnem = power? "t" : "tw"; break; |
| 1114 |
case PPC_31_TD: mnem = "td"; break; |
| 1115 |
} |
| 1116 |
debug("%s\t%i,r%i,r%i", mnem, to, ra, rb); |
| 1117 |
break; |
| 1118 |
case PPC_31_LWARX: |
| 1119 |
case PPC_31_LDARX: |
| 1120 |
case PPC_31_LBZX: |
| 1121 |
case PPC_31_LBZUX: |
| 1122 |
case PPC_31_LHAX: |
| 1123 |
case PPC_31_LHAUX: |
| 1124 |
case PPC_31_LHZX: |
| 1125 |
case PPC_31_LHZUX: |
| 1126 |
case PPC_31_LWZX: |
| 1127 |
case PPC_31_LWZUX: |
| 1128 |
case PPC_31_LHBRX: |
| 1129 |
case PPC_31_LWBRX: |
| 1130 |
case PPC_31_LFDX: |
| 1131 |
case PPC_31_LFSX: |
| 1132 |
case PPC_31_STWCX_DOT: |
| 1133 |
case PPC_31_STDCX_DOT: |
| 1134 |
case PPC_31_STBX: |
| 1135 |
case PPC_31_STBUX: |
| 1136 |
case PPC_31_STHX: |
| 1137 |
case PPC_31_STHUX: |
| 1138 |
case PPC_31_STWX: |
| 1139 |
case PPC_31_STWUX: |
| 1140 |
case PPC_31_STDX: |
| 1141 |
case PPC_31_STDUX: |
| 1142 |
case PPC_31_STHBRX: |
| 1143 |
case PPC_31_STWBRX: |
| 1144 |
case PPC_31_STFDX: |
| 1145 |
case PPC_31_STFSX: |
| 1146 |
/* rs for stores, rt for loads, actually */ |
| 1147 |
load = 0; wlen = 0; fpreg = 0; |
| 1148 |
rs = (iword >> 21) & 31; |
| 1149 |
ra = (iword >> 16) & 31; |
| 1150 |
rb = (iword >> 11) & 31; |
| 1151 |
switch (xo) { |
| 1152 |
case PPC_31_LWARX: wlen=4;load=1; mnem = "lwarx"; break; |
| 1153 |
case PPC_31_LDARX: wlen=8;load=1; mnem = "ldarx"; break; |
| 1154 |
case PPC_31_LBZX: wlen=1;load=1; mnem = "lbzx"; break; |
| 1155 |
case PPC_31_LBZUX: wlen=1;load=1; mnem = "lbzux"; break; |
| 1156 |
case PPC_31_LHAX: wlen=2;load=1; mnem = "lhax"; break; |
| 1157 |
case PPC_31_LHAUX: wlen=2;load=1; mnem = "lhaux"; break; |
| 1158 |
case PPC_31_LHZX: wlen=2;load=1; mnem = "lhzx"; break; |
| 1159 |
case PPC_31_LHZUX: wlen=2;load=1; mnem = "lhzux"; break; |
| 1160 |
case PPC_31_LWZX: wlen = 4; load = 1; |
| 1161 |
mnem = power? "lx" : "lwzx"; |
| 1162 |
break; |
| 1163 |
case PPC_31_LWZUX: wlen = 4; load = 1; |
| 1164 |
mnem = power? "lux":"lwzux"; |
| 1165 |
break; |
| 1166 |
case PPC_31_LFDX: fpreg = 1; wlen = 8; load = 1; |
| 1167 |
mnem = "lfdx"; break; |
| 1168 |
case PPC_31_LFSX: fpreg = 1; wlen = 4; load = 1; |
| 1169 |
mnem = "lfsx"; break; |
| 1170 |
case PPC_31_STWCX_DOT: wlen=4; mnem = "stwcx."; break; |
| 1171 |
case PPC_31_STDCX_DOT: wlen=8; mnem = "stdcx."; break; |
| 1172 |
case PPC_31_STBX: wlen=1; mnem = "stbx"; break; |
| 1173 |
case PPC_31_STBUX: wlen=1; mnem = "stbux"; break; |
| 1174 |
case PPC_31_STHX: wlen=2; mnem = "sthx"; break; |
| 1175 |
case PPC_31_STHUX: wlen=2; mnem = "sthux"; break; |
| 1176 |
case PPC_31_STWX: |
| 1177 |
wlen = 4; mnem = power? "stx" : "stwx"; |
| 1178 |
break; |
| 1179 |
case PPC_31_STWUX: |
| 1180 |
wlen = 4; mnem = power? "stux" : "stwux"; |
| 1181 |
break; |
| 1182 |
case PPC_31_STDX: wlen = 8; mnem = "stdx"; break; |
| 1183 |
case PPC_31_STDUX: wlen = 8; mnem = "stdux"; break; |
| 1184 |
case PPC_31_LHBRX: wlen = 2; mnem = "lhbrx"; break; |
| 1185 |
case PPC_31_LWBRX: wlen = 4; mnem = power? |
| 1186 |
"lbrx" : "lwbrx"; break; |
| 1187 |
case PPC_31_STHBRX: wlen = 2; mnem = "sthbrx"; break; |
| 1188 |
case PPC_31_STWBRX: wlen = 4; mnem = power? |
| 1189 |
"stbrx" : "stwbrx"; break; |
| 1190 |
case PPC_31_STFDX: fpreg = 1; wlen = 8; |
| 1191 |
mnem = "stfdx"; break; |
| 1192 |
case PPC_31_STFSX: fpreg = 1; wlen = 4; |
| 1193 |
mnem = "stfsx"; break; |
| 1194 |
} |
| 1195 |
debug("%s\t%s%i,r%i,r%i", mnem, |
| 1196 |
fpreg? "f" : "r", rs, ra, rb); |
| 1197 |
if (!running) |
| 1198 |
break; |
| 1199 |
addr = (ra==0? 0 : cpu->cd.ppc.gpr[ra]) + |
| 1200 |
cpu->cd.ppc.gpr[rb]; |
| 1201 |
if (cpu->cd.ppc.bits == 32) |
| 1202 |
addr &= 0xffffffff; |
| 1203 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 1204 |
addr, &offset); |
| 1205 |
if (symbol != NULL) |
| 1206 |
debug(" \t<%s", symbol); |
| 1207 |
else |
| 1208 |
debug(" \t<0x%llx", (long long)addr); |
| 1209 |
if (wlen > 0 && !fpreg /* && !reverse */) { |
| 1210 |
/* TODO */ |
| 1211 |
} |
| 1212 |
debug(">"); |
| 1213 |
break; |
| 1214 |
case PPC_31_NEG: |
| 1215 |
case PPC_31_NEGO: |
| 1216 |
rt = (iword >> 21) & 31; |
| 1217 |
ra = (iword >> 16) & 31; |
| 1218 |
oe_bit = (iword >> 10) & 1; |
| 1219 |
rc = iword & 1; |
| 1220 |
switch (xo) { |
| 1221 |
case PPC_31_NEG: mnem = "neg"; break; |
| 1222 |
case PPC_31_NEGO: mnem = "nego"; break; |
| 1223 |
} |
| 1224 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
| 1225 |
break; |
| 1226 |
case PPC_31_WRTEEI: |
| 1227 |
debug("wrteei\t%i", iword & 0x8000? 1 : 0); |
| 1228 |
break; |
| 1229 |
case PPC_31_MTMSRD: |
| 1230 |
/* TODO: Just a guess based on MTMSR */ |
| 1231 |
rs = (iword >> 21) & 31; |
| 1232 |
l_bit = (iword >> 16) & 1; |
| 1233 |
debug("mtmsrd\tr%i", rs); |
| 1234 |
if (l_bit) |
| 1235 |
debug(",%i", l_bit); |
| 1236 |
break; |
| 1237 |
case PPC_31_ADDZE: |
| 1238 |
case PPC_31_ADDZEO: |
| 1239 |
rt = (iword >> 21) & 31; |
| 1240 |
ra = (iword >> 16) & 31; |
| 1241 |
oe_bit = (iword >> 10) & 1; |
| 1242 |
rc = iword & 1; |
| 1243 |
switch (xo) { |
| 1244 |
case PPC_31_ADDZE: |
| 1245 |
mnem = power? "aze" : "addze"; |
| 1246 |
break; |
| 1247 |
case PPC_31_ADDZEO: |
| 1248 |
mnem = power? "azeo" : "addzeo"; |
| 1249 |
break; |
| 1250 |
} |
| 1251 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
| 1252 |
break; |
| 1253 |
case PPC_31_MTSR: |
| 1254 |
case PPC_31_MFSR: |
| 1255 |
/* Move to/from segment register */ |
| 1256 |
rt = (iword >> 21) & 31; |
| 1257 |
ra = (iword >> 16) & 15; /* actually: sr */ |
| 1258 |
switch (xo) { |
| 1259 |
case PPC_31_MTSR: mnem = "mtsr"; break; |
| 1260 |
case PPC_31_MFSR: mnem = "mfsr"; break; |
| 1261 |
} |
| 1262 |
debug("%s\tr%i,%i", mnem, rt, ra); |
| 1263 |
break; |
| 1264 |
case PPC_31_MTSRIN: |
| 1265 |
case PPC_31_MFSRIN: |
| 1266 |
/* Move to/from segment register indirect */ |
| 1267 |
rt = (iword >> 21) & 31; |
| 1268 |
rb = (iword >> 11) & 31; |
| 1269 |
switch (xo) { |
| 1270 |
case PPC_31_MTSRIN: mnem = "mtsrin"; break; |
| 1271 |
case PPC_31_MFSRIN: mnem = "mfsrin"; break; |
| 1272 |
} |
| 1273 |
debug("%s\tr%i,r%i", mnem, rt, rb); |
| 1274 |
break; |
| 1275 |
case PPC_31_ADDC: |
| 1276 |
case PPC_31_ADDCO: |
| 1277 |
case PPC_31_ADDE: |
| 1278 |
case PPC_31_ADDEO: |
| 1279 |
case PPC_31_ADDME: |
| 1280 |
case PPC_31_ADDMEO: |
| 1281 |
case PPC_31_ADD: |
| 1282 |
case PPC_31_ADDO: |
| 1283 |
case PPC_31_MULHW: |
| 1284 |
case PPC_31_MULHWU: |
| 1285 |
case PPC_31_MULLW: |
| 1286 |
case PPC_31_MULLWO: |
| 1287 |
case PPC_31_SUBF: |
| 1288 |
case PPC_31_SUBFO: |
| 1289 |
case PPC_31_SUBFC: |
| 1290 |
case PPC_31_SUBFCO: |
| 1291 |
case PPC_31_SUBFE: |
| 1292 |
case PPC_31_SUBFEO: |
| 1293 |
case PPC_31_SUBFME: |
| 1294 |
case PPC_31_SUBFMEO: |
| 1295 |
case PPC_31_SUBFZE: |
| 1296 |
case PPC_31_SUBFZEO: |
| 1297 |
rt = (iword >> 21) & 31; |
| 1298 |
ra = (iword >> 16) & 31; |
| 1299 |
rb = (iword >> 11) & 31; |
| 1300 |
oe_bit = (iword >> 10) & 1; |
| 1301 |
rc = iword & 1; |
| 1302 |
switch (xo) { |
| 1303 |
case PPC_31_ADDC: |
| 1304 |
mnem = power? "a" : "addc"; |
| 1305 |
break; |
| 1306 |
case PPC_31_ADDCO: |
| 1307 |
mnem = power? "ao" : "addco"; |
| 1308 |
break; |
| 1309 |
case PPC_31_ADDE: |
| 1310 |
mnem = power? "ae" : "adde"; |
| 1311 |
break; |
| 1312 |
case PPC_31_ADDEO: |
| 1313 |
mnem = power? "aeo" : "addeo"; |
| 1314 |
break; |
| 1315 |
case PPC_31_ADDME: |
| 1316 |
mnem = power? "ame" : "addme"; |
| 1317 |
no_rb = 1; |
| 1318 |
break; |
| 1319 |
case PPC_31_ADDMEO: |
| 1320 |
mnem = power? "ameo" : "addmeo"; |
| 1321 |
no_rb = 1; |
| 1322 |
break; |
| 1323 |
case PPC_31_ADD: |
| 1324 |
mnem = power? "cax" : "add"; |
| 1325 |
break; |
| 1326 |
case PPC_31_ADDO: |
| 1327 |
mnem = power? "caxo" : "addo"; |
| 1328 |
break; |
| 1329 |
case PPC_31_MULHW: mnem = "mulhw"; break; |
| 1330 |
case PPC_31_MULHWU: mnem = "mulhwu"; break; |
| 1331 |
case PPC_31_MULLW: |
| 1332 |
mnem = power? "muls" : "mullw"; |
| 1333 |
break; |
| 1334 |
case PPC_31_MULLWO: |
| 1335 |
mnem = power? "mulso" : "mullwo"; |
| 1336 |
break; |
| 1337 |
case PPC_31_SUBF: mnem = "subf"; break; |
| 1338 |
case PPC_31_SUBFO: mnem = "subfo"; break; |
| 1339 |
case PPC_31_SUBFC: |
| 1340 |
mnem = power? "sf" : "subfc"; break; |
| 1341 |
case PPC_31_SUBFCO: |
| 1342 |
mnem = power? "sfo" : "subfco"; break; |
| 1343 |
case PPC_31_SUBFE: |
| 1344 |
mnem = power? "sfe" : "subfe"; break; |
| 1345 |
case PPC_31_SUBFEO: |
| 1346 |
mnem = power? "sfeo" : "subfeo"; break; |
| 1347 |
case PPC_31_SUBFME: |
| 1348 |
mnem = power? "sfme" : "subfme"; break; |
| 1349 |
case PPC_31_SUBFMEO: |
| 1350 |
mnem = power? "sfmeo" : "subfmeo"; break; |
| 1351 |
case PPC_31_SUBFZE: |
| 1352 |
mnem = power? "sfze" : "subfze"; |
| 1353 |
no_rb = 1; |
| 1354 |
break; |
| 1355 |
case PPC_31_SUBFZEO: |
| 1356 |
mnem = power? "sfzeo" : "subfzeo"; |
| 1357 |
no_rb = 1; |
| 1358 |
break; |
| 1359 |
} |
| 1360 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
| 1361 |
if (!no_rb) |
| 1362 |
debug(",r%i", rb); |
| 1363 |
break; |
| 1364 |
case PPC_31_MFSPR: |
| 1365 |
rt = (iword >> 21) & 31; |
| 1366 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 1367 |
switch (spr) { |
| 1368 |
/* Some very common ones: */ |
| 1369 |
case 8: debug("mflr\tr%i", rt); break; |
| 1370 |
case 9: debug("mfctr\tr%i", rt); break; |
| 1371 |
default:debug("mfspr\tr%i,spr%i", rt, spr); |
| 1372 |
} |
| 1373 |
if (spr == 8 || spr == 9) |
| 1374 |
debug("\t"); |
| 1375 |
debug("\t<%s%s", running? "read from " : "", |
| 1376 |
ppc_spr_names[spr]==NULL? "?" : ppc_spr_names[spr]); |
| 1377 |
if (running) { |
| 1378 |
if (cpu->cd.ppc.bits == 32) |
| 1379 |
debug(": 0x%x", (int) |
| 1380 |
cpu->cd.ppc.spr[spr]); |
| 1381 |
else |
| 1382 |
debug(": 0x%llx", (long long) |
| 1383 |
cpu->cd.ppc.spr[spr]); |
| 1384 |
} |
| 1385 |
debug(">"); |
| 1386 |
break; |
| 1387 |
case PPC_31_TLBIA: |
| 1388 |
debug("tlbia"); |
| 1389 |
break; |
| 1390 |
case PPC_31_SLBIA: |
| 1391 |
debug("slbia"); |
| 1392 |
break; |
| 1393 |
case PPC_31_TLBLD: |
| 1394 |
case PPC_31_TLBLI: |
| 1395 |
rb = (iword >> 11) & 31; |
| 1396 |
debug("tlbl%s\tr%i", xo == PPC_31_TLBLD? "d" : "i", rb); |
| 1397 |
break; |
| 1398 |
case PPC_31_TLBIE: |
| 1399 |
/* TODO: what is ra? The IBM online docs didn't say */ |
| 1400 |
ra = 0; |
| 1401 |
rb = (iword >> 11) & 31; |
| 1402 |
if (power) |
| 1403 |
debug("tlbi\tr%i,r%i", ra, rb); |
| 1404 |
else |
| 1405 |
debug("tlbie\tr%i", rb); |
| 1406 |
break; |
| 1407 |
case PPC_31_TLBSX_DOT: |
| 1408 |
rs = (iword >> 21) & 31; |
| 1409 |
ra = (iword >> 16) & 31; |
| 1410 |
rb = (iword >> 11) & 31; |
| 1411 |
debug("tlbsx.\tr%i,r%i,r%i", rs, ra, rb); |
| 1412 |
break; |
| 1413 |
case PPC_31_TLBSYNC: |
| 1414 |
debug("tlbsync"); |
| 1415 |
break; |
| 1416 |
case PPC_31_MFTB: |
| 1417 |
rt = (iword >> 21) & 31; |
| 1418 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 1419 |
debug("mftb%s\tr%i", spr==268? "" : |
| 1420 |
(spr==269? "u" : "?"), rt); |
| 1421 |
break; |
| 1422 |
case PPC_31_CNTLZW: |
| 1423 |
rs = (iword >> 21) & 31; |
| 1424 |
ra = (iword >> 16) & 31; |
| 1425 |
rc = iword & 1; |
| 1426 |
mnem = power? "cntlz" : "cntlzw"; |
| 1427 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
| 1428 |
break; |
| 1429 |
case PPC_31_CLF: /* POWER only */ |
| 1430 |
case PPC_31_CLI: /* POWER only */ |
| 1431 |
case PPC_31_DCLST: /* POWER only */ |
| 1432 |
case PPC_31_DCBF: /* PowerPC only */ |
| 1433 |
case PPC_31_DCBI: /* PowerPC only */ |
| 1434 |
case PPC_31_DCBST: /* PowerPC only */ |
| 1435 |
case PPC_31_DCBTST: /* PowerPC only */ |
| 1436 |
case PPC_31_DCBT: /* PowerPC only */ |
| 1437 |
case PPC_31_ICBI: /* PowerPC only */ |
| 1438 |
case PPC_31_DCBZ: /* POWER/PowerPC */ |
| 1439 |
ra = (iword >> 16) & 31; |
| 1440 |
rb = (iword >> 11) & 31; |
| 1441 |
switch (xo) { |
| 1442 |
case PPC_31_CLF: mnem = "clf"; break; |
| 1443 |
case PPC_31_CLI: mnem = "cli"; break; |
| 1444 |
case PPC_31_DCLST: mnem = "dclst"; break; |
| 1445 |
case PPC_31_DCBF: mnem = "dcbf"; break; |
| 1446 |
case PPC_31_DCBI: mnem = "dcbi"; break; |
| 1447 |
case PPC_31_DCBST: mnem = "dcbst"; break; |
| 1448 |
case PPC_31_DCBTST:mnem = "dcbtst"; break; |
| 1449 |
case PPC_31_DCBT: mnem = "dcbt"; break; |
| 1450 |
case PPC_31_ICBI: mnem = "icbi"; break; |
| 1451 |
case PPC_31_DCBZ: mnem = power ? |
| 1452 |
"dclz" : "dcbz"; break; |
| 1453 |
} |
| 1454 |
debug("%s\tr%i,r%i", mnem, ra, rb); |
| 1455 |
break; |
| 1456 |
case PPC_31_SLW: |
| 1457 |
case PPC_31_SLD: |
| 1458 |
case PPC_31_SRAW: |
| 1459 |
case PPC_31_SRW: |
| 1460 |
case PPC_31_AND: |
| 1461 |
case PPC_31_ANDC: |
| 1462 |
case PPC_31_NOR: |
| 1463 |
case PPC_31_EQV: |
| 1464 |
case PPC_31_OR: |
| 1465 |
case PPC_31_ORC: |
| 1466 |
case PPC_31_XOR: |
| 1467 |
case PPC_31_NAND: |
| 1468 |
rs = (iword >> 21) & 31; |
| 1469 |
ra = (iword >> 16) & 31; |
| 1470 |
rb = (iword >> 11) & 31; |
| 1471 |
rc = iword & 1; |
| 1472 |
if (rs == rb && xo == PPC_31_OR) |
| 1473 |
debug("mr%s\tr%i,r%i", rc? "." : "", ra, rs); |
| 1474 |
else { |
| 1475 |
switch (xo) { |
| 1476 |
case PPC_31_SLW: mnem = |
| 1477 |
power? "sl" : "slw"; break; |
| 1478 |
case PPC_31_SLD: mnem = "sld"; break; |
| 1479 |
case PPC_31_SRAW: mnem = |
| 1480 |
power? "sra" : "sraw"; break; |
| 1481 |
case PPC_31_SRW: mnem = |
| 1482 |
power? "sr" : "srw"; break; |
| 1483 |
case PPC_31_AND: mnem = "and"; break; |
| 1484 |
case PPC_31_NAND: mnem = "nand"; break; |
| 1485 |
case PPC_31_ANDC: mnem = "andc"; break; |
| 1486 |
case PPC_31_NOR: mnem = "nor"; break; |
| 1487 |
case PPC_31_EQV: mnem = "eqv"; break; |
| 1488 |
case PPC_31_OR: mnem = "or"; break; |
| 1489 |
case PPC_31_ORC: mnem = "orc"; break; |
| 1490 |
case PPC_31_XOR: mnem = "xor"; break; |
| 1491 |
} |
| 1492 |
debug("%s%s\tr%i,r%i,r%i", mnem, |
| 1493 |
rc? "." : "", ra, rs, rb); |
| 1494 |
} |
| 1495 |
break; |
| 1496 |
case PPC_31_DCCCI: |
| 1497 |
ra = (iword >> 16) & 31; |
| 1498 |
rb = (iword >> 11) & 31; |
| 1499 |
debug("dccci\tr%i,r%i", ra, rb); |
| 1500 |
break; |
| 1501 |
case PPC_31_ICCCI: |
| 1502 |
ra = (iword >> 16) & 31; |
| 1503 |
rb = (iword >> 11) & 31; |
| 1504 |
debug("iccci\tr%i,r%i", ra, rb); |
| 1505 |
break; |
| 1506 |
case PPC_31_DIVW: |
| 1507 |
case PPC_31_DIVWO: |
| 1508 |
case PPC_31_DIVWU: |
| 1509 |
case PPC_31_DIVWUO: |
| 1510 |
rt = (iword >> 21) & 31; |
| 1511 |
ra = (iword >> 16) & 31; |
| 1512 |
rb = (iword >> 11) & 31; |
| 1513 |
oe_bit = (iword >> 10) & 1; |
| 1514 |
rc = iword & 1; |
| 1515 |
switch (xo) { |
| 1516 |
case PPC_31_DIVWU: mnem = "divwu"; break; |
| 1517 |
case PPC_31_DIVWUO: mnem = "divwuo"; break; |
| 1518 |
case PPC_31_DIVW: mnem = "divw"; break; |
| 1519 |
case PPC_31_DIVWO: mnem = "divwo"; break; |
| 1520 |
} |
| 1521 |
debug("%s%s\tr%i,r%i,r%i", mnem, rc? "." : "", |
| 1522 |
rt, ra, rb); |
| 1523 |
break; |
| 1524 |
case PPC_31_MTSPR: |
| 1525 |
rs = (iword >> 21) & 31; |
| 1526 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 1527 |
switch (spr) { |
| 1528 |
/* Some very common ones: */ |
| 1529 |
case 8: debug("mtlr\tr%i", rs); break; |
| 1530 |
case 9: debug("mtctr\tr%i", rs); break; |
| 1531 |
default:debug("mtspr\tspr%i,r%i", spr, rs); |
| 1532 |
} |
| 1533 |
if (spr == 8 || spr == 9) |
| 1534 |
debug("\t"); |
| 1535 |
debug("\t<%s%s", running? "write to " : "", |
| 1536 |
ppc_spr_names[spr]==NULL? "?" : ppc_spr_names[spr]); |
| 1537 |
if (running) { |
| 1538 |
if (cpu->cd.ppc.bits == 32) |
| 1539 |
debug(": 0x%x", (int) |
| 1540 |
cpu->cd.ppc.gpr[rs]); |
| 1541 |
else |
| 1542 |
debug(": 0x%llx", (long long) |
| 1543 |
cpu->cd.ppc.gpr[rs]); |
| 1544 |
} |
| 1545 |
debug(">"); |
| 1546 |
break; |
| 1547 |
case PPC_31_SYNC: |
| 1548 |
debug("%s", power? "dcs" : "sync"); |
| 1549 |
break; |
| 1550 |
case PPC_31_LSWI: |
| 1551 |
case PPC_31_STSWI: |
| 1552 |
rs = (iword >> 21) & 31; /* lwsi uses rt */ |
| 1553 |
ra = (iword >> 16) & 31; |
| 1554 |
nb = (iword >> 11) & 31; |
| 1555 |
switch (xo) { |
| 1556 |
case PPC_31_LSWI: |
| 1557 |
mnem = power? "lsi" : "lswi"; break; |
| 1558 |
case PPC_31_STSWI: |
| 1559 |
mnem = power? "stsi" : "stswi"; break; |
| 1560 |
} |
| 1561 |
debug("%s\tr%i,r%i,%i", mnem, rs, ra, nb); |
| 1562 |
break; |
| 1563 |
case PPC_31_SRAWI: |
| 1564 |
rs = (iword >> 21) & 31; |
| 1565 |
ra = (iword >> 16) & 31; |
| 1566 |
sh = (iword >> 11) & 31; |
| 1567 |
rc = iword & 1; |
| 1568 |
mnem = power? "srai" : "srawi"; |
| 1569 |
debug("%s%s\tr%i,r%i,%i", mnem, |
| 1570 |
rc? "." : "", ra, rs, sh); |
| 1571 |
break; |
| 1572 |
case PPC_31_DSSALL: |
| 1573 |
debug("dssall"); |
| 1574 |
break; |
| 1575 |
case PPC_31_EIEIO: |
| 1576 |
debug("%s", power? "eieio?" : "eieio"); |
| 1577 |
break; |
| 1578 |
case PPC_31_EXTSB: |
| 1579 |
case PPC_31_EXTSH: |
| 1580 |
case PPC_31_EXTSW: |
| 1581 |
rs = (iword >> 21) & 31; |
| 1582 |
ra = (iword >> 16) & 31; |
| 1583 |
rc = iword & 1; |
| 1584 |
switch (xo) { |
| 1585 |
case PPC_31_EXTSB: |
| 1586 |
mnem = power? "exts" : "extsb"; |
| 1587 |
break; |
| 1588 |
case PPC_31_EXTSH: |
| 1589 |
mnem = "extsh"; |
| 1590 |
break; |
| 1591 |
case PPC_31_EXTSW: |
| 1592 |
mnem = "extsw"; |
| 1593 |
break; |
| 1594 |
} |
| 1595 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
| 1596 |
break; |
| 1597 |
case PPC_31_LVX: |
| 1598 |
case PPC_31_LVXL: |
| 1599 |
case PPC_31_STVX: |
| 1600 |
case PPC_31_STVXL: |
| 1601 |
rs = (iword >> 21) & 31; /* vs for stores, */ |
| 1602 |
ra = (iword >> 16) & 31; /* rs=vl for loads */ |
| 1603 |
rb = (iword >> 11) & 31; |
| 1604 |
rc = iword & 1; |
| 1605 |
switch (xo) { |
| 1606 |
case PPC_31_LVX: mnem = "lvx"; break; |
| 1607 |
case PPC_31_LVXL: mnem = "lvxl"; break; |
| 1608 |
case PPC_31_STVX: mnem = "stvx"; break; |
| 1609 |
case PPC_31_STVXL: mnem = "stvxl"; break; |
| 1610 |
} |
| 1611 |
debug("%s%s\tv%i,r%i,r%i", mnem, rc? "." : "", |
| 1612 |
rs, ra, rb); |
| 1613 |
break; |
| 1614 |
default: |
| 1615 |
debug("unimplemented hi6_31, xo = 0x%x", xo); |
| 1616 |
} |
| 1617 |
break; |
| 1618 |
case PPC_HI6_LD: |
| 1619 |
case PPC_HI6_LWZ: |
| 1620 |
case PPC_HI6_LWZU: |
| 1621 |
case PPC_HI6_LHZ: |
| 1622 |
case PPC_HI6_LHZU: |
| 1623 |
case PPC_HI6_LHA: |
| 1624 |
case PPC_HI6_LHAU: |
| 1625 |
case PPC_HI6_LBZ: |
| 1626 |
case PPC_HI6_LBZU: |
| 1627 |
case PPC_HI6_LFD: |
| 1628 |
case PPC_HI6_LFS: |
| 1629 |
case PPC_HI6_LMW: |
| 1630 |
case PPC_HI6_STD: |
| 1631 |
case PPC_HI6_STW: |
| 1632 |
case PPC_HI6_STWU: |
| 1633 |
case PPC_HI6_STH: |
| 1634 |
case PPC_HI6_STHU: |
| 1635 |
case PPC_HI6_STB: |
| 1636 |
case PPC_HI6_STBU: |
| 1637 |
case PPC_HI6_STMW: |
| 1638 |
case PPC_HI6_STFD: |
| 1639 |
case PPC_HI6_STFS: |
| 1640 |
/* NOTE: Loads use rt, not rs, but are otherwise similar |
| 1641 |
to stores */ |
| 1642 |
load = 0; wlen = 0; |
| 1643 |
rs = (iword >> 21) & 31; |
| 1644 |
ra = (iword >> 16) & 31; |
| 1645 |
imm = (int16_t)(iword & 0xffff); |
| 1646 |
fpreg = 0; |
| 1647 |
switch (hi6) { |
| 1648 |
case PPC_HI6_LD: load=1; wlen = 8; mnem = "ld"; break; |
| 1649 |
case PPC_HI6_LWZ: load=1; wlen = 4; |
| 1650 |
mnem = power? "l" : "lwz"; break; |
| 1651 |
case PPC_HI6_LWZU: load=1; wlen = 4; |
| 1652 |
mnem = power? "lu" : "lwzu"; break; |
| 1653 |
case PPC_HI6_LHZ: load=1; wlen = 2; |
| 1654 |
mnem = "lhz"; break; |
| 1655 |
case PPC_HI6_LHZU: load=1; wlen = 2; |
| 1656 |
mnem = "lhzu"; break; |
| 1657 |
case PPC_HI6_LHA: load=2; wlen = 2; |
| 1658 |
mnem = "lha"; break; |
| 1659 |
case PPC_HI6_LHAU: load=2; wlen = 2; |
| 1660 |
mnem = "lhau"; break; |
| 1661 |
case PPC_HI6_LBZ: load=1; wlen = 1; |
| 1662 |
mnem = "lbz"; break; |
| 1663 |
case PPC_HI6_LBZU: load=1; wlen = 1; |
| 1664 |
mnem = "lbzu"; break; |
| 1665 |
case PPC_HI6_LFD: load=1; fpreg=1; wlen=8; mnem = "lfd"; break; |
| 1666 |
case PPC_HI6_LFS: load=1; fpreg=1; wlen=4; mnem = "lfs"; break; |
| 1667 |
case PPC_HI6_STD: wlen=8; mnem = "std"; break; |
| 1668 |
case PPC_HI6_STW: wlen=4; mnem = power? "st" : "stw"; break; |
| 1669 |
case PPC_HI6_STWU: wlen=4; mnem = power? "stu" : "stwu"; break; |
| 1670 |
case PPC_HI6_STH: wlen=2; mnem = "sth"; break; |
| 1671 |
case PPC_HI6_STHU: wlen=2; mnem = "sthu"; break; |
| 1672 |
case PPC_HI6_STB: wlen=1; mnem = "stb"; break; |
| 1673 |
case PPC_HI6_STBU: wlen=1; mnem = "stbu"; break; |
| 1674 |
case PPC_HI6_LMW: load=1; mnem = power? "lm" : "lmw"; break; |
| 1675 |
case PPC_HI6_STMW: mnem = power? "stm" : "stmw"; break; |
| 1676 |
case PPC_HI6_STFD: fpreg=1; wlen=8; mnem = "stfd"; break; |
| 1677 |
case PPC_HI6_STFS: fpreg=1; wlen=4; mnem = "stfs"; break; |
| 1678 |
} |
| 1679 |
debug("%s\t", mnem); |
| 1680 |
if (fpreg) |
| 1681 |
debug("f"); |
| 1682 |
else |
| 1683 |
debug("r"); |
| 1684 |
debug("%i,%i(r%i)", rs, imm, ra); |
| 1685 |
if (!running) |
| 1686 |
break; |
| 1687 |
addr = (ra==0? 0 : cpu->cd.ppc.gpr[ra]) + imm; |
| 1688 |
if (cpu->cd.ppc.bits == 32) |
| 1689 |
addr &= 0xffffffff; |
| 1690 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 1691 |
addr, &offset); |
| 1692 |
if (symbol != NULL) |
| 1693 |
debug(" \t<%s", symbol); |
| 1694 |
else |
| 1695 |
debug(" \t<0x%llx", (long long)addr); |
| 1696 |
if (wlen > 0 && load && wlen > 0) { |
| 1697 |
unsigned char tw[8]; |
| 1698 |
uint64_t tdata = 0; |
| 1699 |
int i, res = cpu->memory_rw(cpu, cpu->mem, addr, tw, |
| 1700 |
wlen, MEM_READ, NO_EXCEPTIONS); |
| 1701 |
if (res) { |
| 1702 |
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
| 1703 |
for (i=0; i<wlen; i++) { |
| 1704 |
tdata <<= 8; |
| 1705 |
tdata |= tw[wlen-1-i]; |
| 1706 |
} |
| 1707 |
else |
| 1708 |
for (i=0; i<wlen; i++) { |
| 1709 |
tdata <<= 8; |
| 1710 |
tdata |= tw[i]; |
| 1711 |
} |
| 1712 |
debug(": "); |
| 1713 |
if (wlen >= 4) { |
| 1714 |
symbol = get_symbol_name(&cpu->machine-> |
| 1715 |
symbol_context, tdata, &offset); |
| 1716 |
if (symbol != NULL) |
| 1717 |
debug("%s", symbol); |
| 1718 |
else |
| 1719 |
debug("0x%llx", |
| 1720 |
(long long)tdata); |
| 1721 |
} else { |
| 1722 |
/* TODO: if load==2, then this is |
| 1723 |
a _signed_ load. */ |
| 1724 |
debug("0x%llx", (long long)tdata); |
| 1725 |
} |
| 1726 |
} else |
| 1727 |
debug(": unreadable"); |
| 1728 |
} |
| 1729 |
if (wlen > 0 && !load && wlen > 0) { |
| 1730 |
int64_t tdata = 0; |
| 1731 |
int i; |
| 1732 |
for (i=0; i<wlen; i++) |
| 1733 |
tdata |= (cpu->cd.ppc.gpr[rs] & |
| 1734 |
((uint64_t)0xff << (i*8))); |
| 1735 |
debug(": "); |
| 1736 |
if (wlen >= 4) { |
| 1737 |
symbol = get_symbol_name(&cpu->machine-> |
| 1738 |
symbol_context, tdata, &offset); |
| 1739 |
if (symbol != NULL) |
| 1740 |
debug("%s", symbol); |
| 1741 |
else |
| 1742 |
debug("0x%llx", (long long)tdata); |
| 1743 |
} else { |
| 1744 |
if (tdata > -256 && tdata < 256) |
| 1745 |
debug("%i", (int)tdata); |
| 1746 |
else |
| 1747 |
debug("0x%llx", (long long)tdata); |
| 1748 |
} |
| 1749 |
} |
| 1750 |
debug(">"); |
| 1751 |
break; |
| 1752 |
case PPC_HI6_59: |
| 1753 |
xo = (iword >> 1) & 1023; |
| 1754 |
/* NOTE: Some floating point instructions only use the |
| 1755 |
lowest 5 bits of xo, some use all 10 bits! */ |
| 1756 |
switch (xo & 31) { |
| 1757 |
case PPC_59_FDIVS: |
| 1758 |
case PPC_59_FSUBS: |
| 1759 |
case PPC_59_FADDS: |
| 1760 |
case PPC_59_FMULS: |
| 1761 |
case PPC_59_FMADDS: |
| 1762 |
rt = (iword >> 21) & 31; |
| 1763 |
ra = (iword >> 16) & 31; |
| 1764 |
rb = (iword >> 11) & 31; |
| 1765 |
rs = (iword >> 6) & 31; /* actually frc */ |
| 1766 |
rc = iword & 1; |
| 1767 |
switch (xo & 31) { |
| 1768 |
case PPC_59_FDIVS: mnem = "fdivs"; break; |
| 1769 |
case PPC_59_FSUBS: mnem = "fsubs"; break; |
| 1770 |
case PPC_59_FADDS: mnem = "fadds"; break; |
| 1771 |
case PPC_59_FMULS: mnem = "fmuls"; break; |
| 1772 |
case PPC_59_FMADDS: mnem = "fmadds"; break; |
| 1773 |
} |
| 1774 |
debug("%s%s\t", mnem, rc? "." : ""); |
| 1775 |
switch (xo & 31) { |
| 1776 |
case PPC_59_FMULS: |
| 1777 |
debug("f%i,f%i,f%i", rt, ra, rs); |
| 1778 |
break; |
| 1779 |
case PPC_59_FMADDS: |
| 1780 |
debug("f%i,f%i,f%i,f%i", rt, ra, rs, rb); |
| 1781 |
break; |
| 1782 |
default:debug("f%i,f%i,f%i", rt, ra, rb); |
| 1783 |
} |
| 1784 |
break; |
| 1785 |
default:/* TODO: similar to hi6_63 */ |
| 1786 |
debug("unimplemented hi6_59, xo = 0x%x", xo); |
| 1787 |
} |
| 1788 |
break; |
| 1789 |
case PPC_HI6_63: |
| 1790 |
xo = (iword >> 1) & 1023; |
| 1791 |
/* NOTE: Some floating point instructions only use the |
| 1792 |
lowest 5 bits of xo, some use all 10 bits! */ |
| 1793 |
switch (xo & 31) { |
| 1794 |
case PPC_63_FDIV: |
| 1795 |
case PPC_63_FSUB: |
| 1796 |
case PPC_63_FADD: |
| 1797 |
case PPC_63_FMUL: |
| 1798 |
case PPC_63_FMSUB: |
| 1799 |
case PPC_63_FMADD: |
| 1800 |
rt = (iword >> 21) & 31; |
| 1801 |
ra = (iword >> 16) & 31; |
| 1802 |
rb = (iword >> 11) & 31; |
| 1803 |
rs = (iword >> 6) & 31; /* actually frc */ |
| 1804 |
rc = iword & 1; |
| 1805 |
switch (xo & 31) { |
| 1806 |
case PPC_63_FDIV: |
| 1807 |
mnem = power? "fd" : "fdiv"; break; |
| 1808 |
case PPC_63_FSUB: |
| 1809 |
mnem = power? "fs" : "fsub"; break; |
| 1810 |
case PPC_63_FADD: |
| 1811 |
mnem = power? "fa" : "fadd"; break; |
| 1812 |
case PPC_63_FMUL: |
| 1813 |
mnem = power? "fm" : "fmul"; break; |
| 1814 |
case PPC_63_FMSUB: |
| 1815 |
mnem = power? "fms" : "fmsub"; break; |
| 1816 |
case PPC_63_FMADD: |
| 1817 |
mnem = power? "fma" : "fmadd"; break; |
| 1818 |
} |
| 1819 |
debug("%s%s\t", mnem, rc? "." : ""); |
| 1820 |
switch (xo & 31) { |
| 1821 |
case PPC_63_FMUL: |
| 1822 |
debug("f%i,f%i,f%i", rt, ra, rs); |
| 1823 |
break; |
| 1824 |
case PPC_63_FMADD: |
| 1825 |
debug("f%i,f%i,f%i,f%i", rt, ra, rs, rb); |
| 1826 |
break; |
| 1827 |
default:debug("f%i,f%i,f%i", rt, ra, rb); |
| 1828 |
} |
| 1829 |
break; |
| 1830 |
default:rt = (iword >> 21) & 31; |
| 1831 |
ra = (iword >> 16) & 31; |
| 1832 |
rb = (iword >> 11) & 31; |
| 1833 |
rc = iword & 1; |
| 1834 |
switch (xo) { |
| 1835 |
case PPC_63_FCMPU: |
| 1836 |
case PPC_63_FRSP: |
| 1837 |
case PPC_63_FCTIWZ: |
| 1838 |
case PPC_63_FNEG: |
| 1839 |
case PPC_63_FMR: |
| 1840 |
case PPC_63_FNABS: |
| 1841 |
case PPC_63_FABS: |
| 1842 |
switch (xo) { |
| 1843 |
case PPC_63_FCMPU: mnem = "fcmpu"; break; |
| 1844 |
case PPC_63_FCTIWZ: |
| 1845 |
mnem = power? "fcirz" : "fctiwz"; break; |
| 1846 |
case PPC_63_FRSP: mnem = "frsp"; break; |
| 1847 |
case PPC_63_FNEG: mnem = "fneg"; break; |
| 1848 |
case PPC_63_FMR: mnem = "fmr"; break; |
| 1849 |
case PPC_63_FNABS: mnem = "fnabs"; break; |
| 1850 |
case PPC_63_FABS: mnem = "fabs"; break; |
| 1851 |
} |
| 1852 |
debug("%s%s\t", mnem, rc? "." : ""); |
| 1853 |
switch (xo) { |
| 1854 |
case PPC_63_FCMPU: |
| 1855 |
debug("%i,f%i,f%i", rt >> 2, ra, rb); |
| 1856 |
break; |
| 1857 |
case PPC_63_FCTIWZ: |
| 1858 |
case PPC_63_FRSP: |
| 1859 |
case PPC_63_FNEG: |
| 1860 |
case PPC_63_FMR: |
| 1861 |
case PPC_63_FNABS: |
| 1862 |
case PPC_63_FABS: |
| 1863 |
debug("f%i,f%i", rt, rb); |
| 1864 |
break; |
| 1865 |
default:debug("f%i,f%i,f%i", rt, ra, rb); |
| 1866 |
} |
| 1867 |
break; |
| 1868 |
case PPC_63_MFFS: |
| 1869 |
debug("mffs%s\tf%i", rc?".":"", rt); |
| 1870 |
break; |
| 1871 |
case PPC_63_MTFSF: |
| 1872 |
ra = (iword >> 17) & 255; /* flm */ |
| 1873 |
debug("mtfsf%s\t0x%02x,f%i", rc?".":"", ra, rb); |
| 1874 |
break; |
| 1875 |
default:debug("unimplemented hi6_63, xo = 0x%x", xo); |
| 1876 |
} |
| 1877 |
} |
| 1878 |
break; |
| 1879 |
default: |
| 1880 |
/* TODO */ |
| 1881 |
debug("unimplemented hi6 = 0x%02x", hi6); |
| 1882 |
} |
| 1883 |
|
| 1884 |
debug("\n"); |
| 1885 |
return sizeof(iword); |
| 1886 |
} |
| 1887 |
|
| 1888 |
|
| 1889 |
/* |
| 1890 |
* debug_spr_usage(): |
| 1891 |
* |
| 1892 |
* Helper function. To speed up overall development speed of the emulator, |
| 1893 |
* all SPR accesses are allowed. This function causes unknown/unimplemented |
| 1894 |
* SPRs to give a warning. |
| 1895 |
*/ |
| 1896 |
static void debug_spr_usage(uint64_t pc, int spr) |
| 1897 |
{ |
| 1898 |
static uint32_t spr_used[1024 / sizeof(uint32_t)]; |
| 1899 |
static int initialized = 0; |
| 1900 |
|
| 1901 |
if (!initialized) { |
| 1902 |
memset(spr_used, 0, sizeof(spr_used)); |
| 1903 |
initialized = 1; |
| 1904 |
} |
| 1905 |
|
| 1906 |
spr &= 1023; |
| 1907 |
if (spr_used[spr >> 2] & (1 << (spr & 3))) |
| 1908 |
return; |
| 1909 |
|
| 1910 |
switch (spr) { |
| 1911 |
/* Known/implemented SPRs: */ |
| 1912 |
case SPR_XER: |
| 1913 |
case SPR_LR: |
| 1914 |
case SPR_CTR: |
| 1915 |
case SPR_DSISR: |
| 1916 |
case SPR_DAR: |
| 1917 |
case SPR_DEC: |
| 1918 |
case SPR_SDR1: |
| 1919 |
case SPR_SRR0: |
| 1920 |
case SPR_SRR1: |
| 1921 |
case SPR_SPRG0: |
| 1922 |
case SPR_SPRG1: |
| 1923 |
case SPR_SPRG2: |
| 1924 |
case SPR_SPRG3: |
| 1925 |
case SPR_PVR: |
| 1926 |
case SPR_DMISS: |
| 1927 |
case SPR_DCMP: |
| 1928 |
case SPR_HASH1: |
| 1929 |
case SPR_HASH2: |
| 1930 |
case SPR_IMISS: |
| 1931 |
case SPR_ICMP: |
| 1932 |
case SPR_DBSR: |
| 1933 |
case SPR_PIR: |
| 1934 |
break; |
| 1935 |
default:if (spr >= SPR_IBAT0U && spr <= SPR_DBAT3L) { |
| 1936 |
break; |
| 1937 |
} else |
| 1938 |
fatal("[ using UNIMPLEMENTED spr %i (%s), pc = " |
| 1939 |
"0x%llx ]\n", spr, ppc_spr_names[spr] == NULL? |
| 1940 |
"UNKNOWN" : ppc_spr_names[spr], (long long)pc); |
| 1941 |
} |
| 1942 |
|
| 1943 |
spr_used[spr >> 2] |= (1 << (spr & 3)); |
| 1944 |
} |
| 1945 |
|
| 1946 |
|
| 1947 |
/* |
| 1948 |
* update_cr0(): |
| 1949 |
* |
| 1950 |
* Sets the top 4 bits of the CR register. |
| 1951 |
*/ |
| 1952 |
void update_cr0(struct cpu *cpu, uint64_t value) |
| 1953 |
{ |
| 1954 |
int c; |
| 1955 |
|
| 1956 |
if (cpu->cd.ppc.bits == 64) { |
| 1957 |
if ((int64_t)value < 0) |
| 1958 |
c = 8; |
| 1959 |
else if ((int64_t)value > 0) |
| 1960 |
c = 4; |
| 1961 |
else |
| 1962 |
c = 2; |
| 1963 |
} else { |
| 1964 |
if ((int32_t)value < 0) |
| 1965 |
c = 8; |
| 1966 |
else if ((int32_t)value > 0) |
| 1967 |
c = 4; |
| 1968 |
else |
| 1969 |
c = 2; |
| 1970 |
} |
| 1971 |
|
| 1972 |
/* SO bit, copied from XER: */ |
| 1973 |
c |= ((cpu->cd.ppc.spr[SPR_XER] >> 31) & 1); |
| 1974 |
|
| 1975 |
cpu->cd.ppc.cr &= ~((uint32_t)0xf << 28); |
| 1976 |
cpu->cd.ppc.cr |= ((uint32_t)c << 28); |
| 1977 |
} |
| 1978 |
|
| 1979 |
|
| 1980 |
#include "memory_ppc.c" |
| 1981 |
|
| 1982 |
|
| 1983 |
#include "tmp_ppc_tail.c" |
| 1984 |
|
| 1985 |
|
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