| 1 |
/* |
| 2 |
* 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 |
| 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 |
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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 |
| 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 |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: cpu_ppc.c,v 1.61 2005/04/01 16:44:36 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 "misc.h" |
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|
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|
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#ifndef ENABLE_PPC |
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|
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|
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#include "cpu_ppc.h" |
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|
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|
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/* |
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* ppc_cpu_family_init(): |
| 49 |
* |
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* Bogus function. |
| 51 |
*/ |
| 52 |
int ppc_cpu_family_init(struct cpu_family *fp) |
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{ |
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return 0; |
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} |
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|
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|
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#else /* ENABLE_PPC */ |
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|
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|
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#include "cpu.h" |
| 62 |
#include "cpu_ppc.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "opcodes_ppc.h" |
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#include "symbol.h" |
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|
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|
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extern volatile int single_step; |
| 70 |
extern int old_show_trace_tree; |
| 71 |
extern int old_instruction_trace; |
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extern int old_quiet_mode; |
| 73 |
extern int quiet_mode; |
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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. |
| 80 |
*/ |
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struct cpu *ppc_cpu_new(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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struct cpu *cpu; |
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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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|
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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 NULL; |
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|
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cpu = malloc(sizeof(struct cpu)); |
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if (cpu == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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|
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memset(cpu, 0, sizeof(struct cpu)); |
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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->mem = mem; |
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cpu->machine = machine; |
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cpu->cpu_id = cpu_id; |
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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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cpu->cd.ppc.of_emul_addr = 0xff000000; /* 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->bootstrap_cpu_flag = 0; |
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cpu->running = 0; |
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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.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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return cpu; |
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} |
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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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/* |
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* reg_access_msr(): |
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*/ |
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static void reg_access_msr(struct cpu *cpu, uint64_t *valuep, int writeflag) |
| 218 |
{ |
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if (valuep == NULL) { |
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fatal("reg_access_msr(): NULL\n"); |
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return; |
| 222 |
} |
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|
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if (writeflag) |
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cpu->cd.ppc.msr = *valuep; |
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|
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/* TODO: Is the little-endian bit writable? */ |
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|
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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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|
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if (!writeflag) |
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*valuep = cpu->cd.ppc.msr; |
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} |
| 236 |
|
| 237 |
|
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/* |
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* ppc_cpu_register_dump(): |
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* |
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* Dump cpu registers in a relatively readable format. |
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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: set bit 0..3 to dump registers in coproc 0..3. |
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*/ |
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void ppc_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs) |
| 247 |
{ |
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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; |
| 252 |
|
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if (gprs) { |
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/* Special registers (pc, ...) first: */ |
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symbol = get_symbol_name(&cpu->machine->symbol_context, |
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cpu->pc, &offset); |
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|
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debug("cpu%i: pc = 0x", x); |
| 259 |
if (bits32) |
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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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|
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debug("cpu%i: lr = 0x", x); |
| 266 |
if (bits32) |
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debug("%08x", (int)cpu->cd.ppc.lr); |
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else |
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debug("%016llx", (long long)cpu->cd.ppc.lr); |
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debug(" cr = 0x%08x\n", (int)cpu->cd.ppc.cr); |
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|
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debug("cpu%i: ctr = 0x", x); |
| 273 |
if (bits32) |
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debug("%08x", (int)cpu->cd.ppc.ctr); |
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else |
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debug("%016llx", (long long)cpu->cd.ppc.ctr); |
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|
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debug(" xer = 0x", x); |
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if (bits32) |
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debug("%08x\n", (int)cpu->cd.ppc.xer); |
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else |
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debug("%016llx\n", (long long)cpu->cd.ppc.xer); |
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|
| 284 |
if (bits32) { |
| 285 |
/* 32-bit: */ |
| 286 |
for (i=0; i<PPC_NGPRS; i++) { |
| 287 |
if ((i % 4) == 0) |
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debug("cpu%i:", x); |
| 289 |
debug(" r%02i = 0x%08x ", i, |
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(int)cpu->cd.ppc.gpr[i]); |
| 291 |
if ((i % 4) == 3) |
| 292 |
debug("\n"); |
| 293 |
} |
| 294 |
} else { |
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/* 64-bit: */ |
| 296 |
for (i=0; i<PPC_NGPRS; i++) { |
| 297 |
if ((i % 2) == 0) |
| 298 |
debug("cpu%i:", x); |
| 299 |
debug(" r%02i = 0x%016llx ", i, |
| 300 |
(long long)cpu->cd.ppc.gpr[i]); |
| 301 |
if ((i % 2) == 1) |
| 302 |
debug("\n"); |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
/* Other special registers: */ |
| 307 |
reg_access_msr(cpu, &tmp, 0); |
| 308 |
debug("cpu%i: msr = 0x%016llx ", x, (long long)tmp); |
| 309 |
debug("tb = 0x%08x%08x\n", |
| 310 |
(int)cpu->cd.ppc.tbu, (int)cpu->cd.ppc.tbl); |
| 311 |
debug("cpu%i: dec = 0x%08x hdec = 0x%08x\n", |
| 312 |
x, (int)cpu->cd.ppc.dec, (int)cpu->cd.ppc.hdec); |
| 313 |
} |
| 314 |
|
| 315 |
if (coprocs) { |
| 316 |
debug("cpu%i: fpscr = 0x%08x\n", x, (int)cpu->cd.ppc.fpscr); |
| 317 |
|
| 318 |
/* TODO: show floating-point values :-) */ |
| 319 |
|
| 320 |
/* TODO: 32-bit fprs on 32-bit PPC cpus? */ |
| 321 |
|
| 322 |
for (i=0; i<PPC_NFPRS; i++) { |
| 323 |
if ((i % 2) == 0) |
| 324 |
debug("cpu%i:", x); |
| 325 |
debug(" f%02i = 0x%016llx ", i, |
| 326 |
(long long)cpu->cd.ppc.fpr[i]); |
| 327 |
if ((i % 2) == 1) |
| 328 |
debug("\n"); |
| 329 |
} |
| 330 |
} |
| 331 |
} |
| 332 |
|
| 333 |
|
| 334 |
/* |
| 335 |
* ppc_cpu_register_match(): |
| 336 |
*/ |
| 337 |
void ppc_cpu_register_match(struct machine *m, char *name, |
| 338 |
int writeflag, uint64_t *valuep, int *match_register) |
| 339 |
{ |
| 340 |
int cpunr = 0; |
| 341 |
|
| 342 |
/* CPU number: */ |
| 343 |
|
| 344 |
/* TODO */ |
| 345 |
|
| 346 |
/* Register name: */ |
| 347 |
if (strcasecmp(name, "pc") == 0) { |
| 348 |
if (writeflag) { |
| 349 |
m->cpus[cpunr]->pc = *valuep; |
| 350 |
} else |
| 351 |
*valuep = m->cpus[cpunr]->pc; |
| 352 |
*match_register = 1; |
| 353 |
} else if (strcasecmp(name, "msr") == 0) { |
| 354 |
if (writeflag) |
| 355 |
m->cpus[cpunr]->cd.ppc.msr = *valuep; |
| 356 |
else |
| 357 |
*valuep = m->cpus[cpunr]->cd.ppc.msr; |
| 358 |
*match_register = 1; |
| 359 |
} else if (strcasecmp(name, "lr") == 0) { |
| 360 |
if (writeflag) |
| 361 |
m->cpus[cpunr]->cd.ppc.lr = *valuep; |
| 362 |
else |
| 363 |
*valuep = m->cpus[cpunr]->cd.ppc.lr; |
| 364 |
*match_register = 1; |
| 365 |
} else if (strcasecmp(name, "cr") == 0) { |
| 366 |
if (writeflag) |
| 367 |
m->cpus[cpunr]->cd.ppc.cr = *valuep; |
| 368 |
else |
| 369 |
*valuep = m->cpus[cpunr]->cd.ppc.cr; |
| 370 |
*match_register = 1; |
| 371 |
} else if (strcasecmp(name, "dec") == 0) { |
| 372 |
if (writeflag) |
| 373 |
m->cpus[cpunr]->cd.ppc.dec = *valuep; |
| 374 |
else |
| 375 |
*valuep = m->cpus[cpunr]->cd.ppc.dec; |
| 376 |
*match_register = 1; |
| 377 |
} else if (strcasecmp(name, "hdec") == 0) { |
| 378 |
if (writeflag) |
| 379 |
m->cpus[cpunr]->cd.ppc.hdec = *valuep; |
| 380 |
else |
| 381 |
*valuep = m->cpus[cpunr]->cd.ppc.hdec; |
| 382 |
*match_register = 1; |
| 383 |
} else if (strcasecmp(name, "ctr") == 0) { |
| 384 |
if (writeflag) |
| 385 |
m->cpus[cpunr]->cd.ppc.ctr = *valuep; |
| 386 |
else |
| 387 |
*valuep = m->cpus[cpunr]->cd.ppc.ctr; |
| 388 |
*match_register = 1; |
| 389 |
} else if (name[0] == 'r' && isdigit((int)name[1])) { |
| 390 |
int nr = atoi(name + 1); |
| 391 |
if (nr >= 0 && nr < PPC_NGPRS) { |
| 392 |
if (writeflag) { |
| 393 |
m->cpus[cpunr]->cd.ppc.gpr[nr] = *valuep; |
| 394 |
} else |
| 395 |
*valuep = m->cpus[cpunr]->cd.ppc.gpr[nr]; |
| 396 |
*match_register = 1; |
| 397 |
} |
| 398 |
} else if (strcasecmp(name, "xer") == 0) { |
| 399 |
if (writeflag) |
| 400 |
m->cpus[cpunr]->cd.ppc.xer = *valuep; |
| 401 |
else |
| 402 |
*valuep = m->cpus[cpunr]->cd.ppc.xer; |
| 403 |
*match_register = 1; |
| 404 |
} else if (strcasecmp(name, "fpscr") == 0) { |
| 405 |
if (writeflag) |
| 406 |
m->cpus[cpunr]->cd.ppc.fpscr = *valuep; |
| 407 |
else |
| 408 |
*valuep = m->cpus[cpunr]->cd.ppc.fpscr; |
| 409 |
*match_register = 1; |
| 410 |
} else if (name[0] == 'f' && isdigit((int)name[1])) { |
| 411 |
int nr = atoi(name + 1); |
| 412 |
if (nr >= 0 && nr < PPC_NFPRS) { |
| 413 |
if (writeflag) { |
| 414 |
m->cpus[cpunr]->cd.ppc.fpr[nr] = *valuep; |
| 415 |
} else |
| 416 |
*valuep = m->cpus[cpunr]->cd.ppc.fpr[nr]; |
| 417 |
*match_register = 1; |
| 418 |
} |
| 419 |
} |
| 420 |
} |
| 421 |
|
| 422 |
|
| 423 |
/* |
| 424 |
* ppc_cpu_disassemble_instr(): |
| 425 |
* |
| 426 |
* Convert an instruction word into human readable format, for instruction |
| 427 |
* tracing. |
| 428 |
* |
| 429 |
* If running is 1, cpu->pc should be the address of the instruction. |
| 430 |
* |
| 431 |
* If running is 0, things that depend on the runtime environment (eg. |
| 432 |
* register contents) will not be shown, and addr will be used instead of |
| 433 |
* cpu->pc for relative addresses. |
| 434 |
*/ |
| 435 |
int ppc_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
| 436 |
int running, uint64_t dumpaddr, int bintrans) |
| 437 |
{ |
| 438 |
int hi6, xo, lev, rt, rs, ra, rb, imm, sh, me, rc, l_bit, oe_bit; |
| 439 |
int spr, aa_bit, lk_bit, bf, bh, bi, bo, mb, nb, bt, ba, bb, fpreg; |
| 440 |
int bfa; |
| 441 |
uint64_t offset, addr; |
| 442 |
uint32_t iword; |
| 443 |
char *symbol, *mnem = "ERROR"; |
| 444 |
int power = cpu->cd.ppc.mode == MODE_POWER; |
| 445 |
|
| 446 |
if (running) |
| 447 |
dumpaddr = cpu->pc; |
| 448 |
|
| 449 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 450 |
dumpaddr, &offset); |
| 451 |
if (symbol != NULL && offset==0) |
| 452 |
debug("<%s>\n", symbol); |
| 453 |
|
| 454 |
if (cpu->machine->ncpus > 1 && running) |
| 455 |
debug("cpu%i: ", cpu->cpu_id); |
| 456 |
|
| 457 |
if (cpu->cd.ppc.bits == 32) |
| 458 |
debug("%08x", (int)dumpaddr); |
| 459 |
else |
| 460 |
debug("%016llx", (long long)dumpaddr); |
| 461 |
|
| 462 |
/* NOTE: Fixed to big-endian. */ |
| 463 |
iword = (instr[0] << 24) + (instr[1] << 16) + (instr[2] << 8) |
| 464 |
+ instr[3]; |
| 465 |
|
| 466 |
debug(": %08x\t", iword); |
| 467 |
|
| 468 |
if (bintrans && !running) { |
| 469 |
debug("(bintrans)"); |
| 470 |
goto disasm_ret; |
| 471 |
} |
| 472 |
|
| 473 |
/* |
| 474 |
* Decode the instruction: |
| 475 |
*/ |
| 476 |
|
| 477 |
hi6 = iword >> 26; |
| 478 |
|
| 479 |
switch (hi6) { |
| 480 |
case PPC_HI6_MULLI: |
| 481 |
case PPC_HI6_SUBFIC: |
| 482 |
rt = (iword >> 21) & 31; |
| 483 |
ra = (iword >> 16) & 31; |
| 484 |
imm = (int16_t)(iword & 0xffff); |
| 485 |
switch (hi6) { |
| 486 |
case PPC_HI6_MULLI: |
| 487 |
mnem = power? "muli":"mulli"; |
| 488 |
break; |
| 489 |
case PPC_HI6_SUBFIC: |
| 490 |
mnem = power? "sfi":"subfic"; |
| 491 |
break; |
| 492 |
} |
| 493 |
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
| 494 |
break; |
| 495 |
case PPC_HI6_CMPLI: |
| 496 |
case PPC_HI6_CMPI: |
| 497 |
bf = (iword >> 23) & 7; |
| 498 |
l_bit = (iword >> 21) & 1; |
| 499 |
ra = (iword >> 16) & 31; |
| 500 |
if (hi6 == PPC_HI6_CMPLI) { |
| 501 |
imm = iword & 0xffff; |
| 502 |
mnem = "cmpl"; |
| 503 |
} else { |
| 504 |
imm = (int16_t)(iword & 0xffff); |
| 505 |
mnem = "cmp"; |
| 506 |
} |
| 507 |
debug("%s%si\t", mnem, l_bit? "d" : "w"); |
| 508 |
if (bf != 0) |
| 509 |
debug("cr%i,", bf); |
| 510 |
debug("r%i,%i", ra, imm); |
| 511 |
break; |
| 512 |
case PPC_HI6_ADDIC: |
| 513 |
case PPC_HI6_ADDIC_DOT: |
| 514 |
rt = (iword >> 21) & 31; |
| 515 |
ra = (iword >> 16) & 31; |
| 516 |
rc = hi6 == PPC_HI6_ADDIC_DOT; |
| 517 |
imm = (int16_t)(iword & 0xffff); |
| 518 |
mnem = power? "ai":"addic"; |
| 519 |
if (imm < 0 && !power) { |
| 520 |
mnem = "subic"; |
| 521 |
imm = -imm; |
| 522 |
} |
| 523 |
debug("%s%s\tr%i,r%i,%i", mnem, rc?".":"", rt, ra, imm); |
| 524 |
break; |
| 525 |
case PPC_HI6_ADDI: |
| 526 |
rt = (iword >> 21) & 31; |
| 527 |
ra = (iword >> 16) & 31; |
| 528 |
imm = (int16_t)(iword & 0xffff); |
| 529 |
if (ra == 0) |
| 530 |
debug("li\tr%i,%i", rt, imm); |
| 531 |
else { |
| 532 |
mnem = power? "cal":"addi"; |
| 533 |
if (imm < 0 && !power) { |
| 534 |
mnem = "subi"; |
| 535 |
imm = -imm; |
| 536 |
} |
| 537 |
debug("%s\tr%i,r%i,%i", mnem, rt, ra, imm); |
| 538 |
} |
| 539 |
break; |
| 540 |
case PPC_HI6_ADDIS: |
| 541 |
rt = (iword >> 21) & 31; |
| 542 |
ra = (iword >> 16) & 31; |
| 543 |
imm = (int16_t)(iword & 0xffff); |
| 544 |
if (ra == 0) |
| 545 |
debug("lis\tr%i,%i", rt, imm); |
| 546 |
else |
| 547 |
debug("%s\tr%i,r%i,%i", |
| 548 |
power? "cau":"addis", rt, ra, imm); |
| 549 |
break; |
| 550 |
case PPC_HI6_BC: |
| 551 |
aa_bit = (iword & 2) >> 1; |
| 552 |
lk_bit = iword & 1; |
| 553 |
bo = (iword >> 21) & 31; |
| 554 |
bi = (iword >> 16) & 31; |
| 555 |
/* Sign-extend addr: */ |
| 556 |
addr = (int64_t)(int16_t)(iword & 0xfffc); |
| 557 |
debug("bc"); |
| 558 |
if (lk_bit) |
| 559 |
debug("l"); |
| 560 |
if (aa_bit) |
| 561 |
debug("a"); |
| 562 |
else |
| 563 |
addr += dumpaddr; |
| 564 |
debug("\t%i,%i,", bo, bi); |
| 565 |
if (cpu->cd.ppc.bits == 32) |
| 566 |
addr &= 0xffffffff; |
| 567 |
if (cpu->cd.ppc.bits == 32) |
| 568 |
debug("0x%x", (int)addr); |
| 569 |
else |
| 570 |
debug("0x%llx", (long long)addr); |
| 571 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 572 |
addr, &offset); |
| 573 |
if (symbol != NULL) |
| 574 |
debug("\t<%s>", symbol); |
| 575 |
break; |
| 576 |
case PPC_HI6_SC: |
| 577 |
lev = (iword >> 5) & 0x7f; |
| 578 |
debug("sc"); |
| 579 |
if (lev != 0) { |
| 580 |
debug("\t%i", lev); |
| 581 |
if (lev > 1) |
| 582 |
debug(" (WARNING! reserved value)"); |
| 583 |
} |
| 584 |
break; |
| 585 |
case PPC_HI6_B: |
| 586 |
aa_bit = (iword & 2) >> 1; |
| 587 |
lk_bit = iword & 1; |
| 588 |
/* Sign-extend addr: */ |
| 589 |
addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
| 590 |
addr = (int64_t)addr >> 6; |
| 591 |
debug("b"); |
| 592 |
if (lk_bit) |
| 593 |
debug("l"); |
| 594 |
if (aa_bit) |
| 595 |
debug("a"); |
| 596 |
else |
| 597 |
addr += dumpaddr; |
| 598 |
if (cpu->cd.ppc.bits == 32) |
| 599 |
addr &= 0xffffffff; |
| 600 |
if (cpu->cd.ppc.bits == 32) |
| 601 |
debug("\t0x%x", (int)addr); |
| 602 |
else |
| 603 |
debug("\t0x%llx", (long long)addr); |
| 604 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 605 |
addr, &offset); |
| 606 |
if (symbol != NULL) |
| 607 |
debug("\t<%s>", symbol); |
| 608 |
break; |
| 609 |
case PPC_HI6_19: |
| 610 |
xo = (iword >> 1) & 1023; |
| 611 |
switch (xo) { |
| 612 |
case PPC_19_MCRF: |
| 613 |
bf = (iword >> 23) & 7; |
| 614 |
bfa = (iword >> 18) & 7; |
| 615 |
debug("mcrf\tcr%i,cr%i", bf, bfa); |
| 616 |
break; |
| 617 |
case PPC_19_BCLR: |
| 618 |
case PPC_19_BCCTR: |
| 619 |
bo = (iword >> 21) & 31; |
| 620 |
bi = (iword >> 16) & 31; |
| 621 |
bh = (iword >> 11) & 3; |
| 622 |
lk_bit = iword & 1; |
| 623 |
switch (xo) { |
| 624 |
case PPC_19_BCLR: |
| 625 |
mnem = power? "bcr" : "bclr"; break; |
| 626 |
case PPC_19_BCCTR: |
| 627 |
mnem = power? "bcc" : "bcctr"; break; |
| 628 |
} |
| 629 |
debug("%s%s%s\t%i,%i,%i", mnem, lk_bit? "l" : "", |
| 630 |
bh? (bh==3? "+" : (bh==2? "-" : "?")) : "", |
| 631 |
bo, bi, bh); |
| 632 |
break; |
| 633 |
case PPC_19_ISYNC: |
| 634 |
debug("%s", power? "ics" : "isync"); |
| 635 |
break; |
| 636 |
case PPC_19_CRAND: |
| 637 |
case PPC_19_CRXOR: |
| 638 |
case PPC_19_CROR: |
| 639 |
case PPC_19_CRNAND: |
| 640 |
case PPC_19_CRNOR: |
| 641 |
case PPC_19_CRANDC: |
| 642 |
case PPC_19_CREQV: |
| 643 |
case PPC_19_CRORC: |
| 644 |
bt = (iword >> 21) & 31; |
| 645 |
ba = (iword >> 16) & 31; |
| 646 |
bb = (iword >> 11) & 31; |
| 647 |
switch (xo) { |
| 648 |
case PPC_19_CRAND: mnem = "crand"; break; |
| 649 |
case PPC_19_CRXOR: mnem = "crxor"; break; |
| 650 |
case PPC_19_CROR: mnem = "cror"; break; |
| 651 |
case PPC_19_CRNAND: mnem = "crnand"; break; |
| 652 |
case PPC_19_CRNOR: mnem = "crnor"; break; |
| 653 |
case PPC_19_CRANDC: mnem = "crandc"; break; |
| 654 |
case PPC_19_CREQV: mnem = "creqv"; break; |
| 655 |
case PPC_19_CRORC: mnem = "crorc"; break; |
| 656 |
} |
| 657 |
debug("%s\t%i,%i,%i", mnem, bt, ba, bb); |
| 658 |
break; |
| 659 |
default: |
| 660 |
debug("unimplemented hi6_19, xo = 0x%x", xo); |
| 661 |
} |
| 662 |
break; |
| 663 |
case PPC_HI6_RLWIMI: |
| 664 |
case PPC_HI6_RLWINM: |
| 665 |
rs = (iword >> 21) & 31; |
| 666 |
ra = (iword >> 16) & 31; |
| 667 |
sh = (iword >> 11) & 31; |
| 668 |
mb = (iword >> 6) & 31; |
| 669 |
me = (iword >> 1) & 31; |
| 670 |
rc = iword & 1; |
| 671 |
switch (hi6) { |
| 672 |
case PPC_HI6_RLWIMI: |
| 673 |
mnem = power? "rlimi" : "rlwimi"; break; |
| 674 |
case PPC_HI6_RLWINM: |
| 675 |
mnem = power? "rlinm" : "rlwinm"; break; |
| 676 |
} |
| 677 |
debug("%s%s\tr%i,r%i,%i,%i,%i", |
| 678 |
mnem, rc?".":"", ra, rs, sh, mb, me); |
| 679 |
break; |
| 680 |
case PPC_HI6_ORI: |
| 681 |
case PPC_HI6_ORIS: |
| 682 |
case PPC_HI6_XORI: |
| 683 |
case PPC_HI6_XORIS: |
| 684 |
case PPC_HI6_ANDI_DOT: |
| 685 |
case PPC_HI6_ANDIS_DOT: |
| 686 |
rs = (iword >> 21) & 31; |
| 687 |
ra = (iword >> 16) & 31; |
| 688 |
imm = iword & 0xffff; |
| 689 |
switch (hi6) { |
| 690 |
case PPC_HI6_ORI: |
| 691 |
mnem = power? "oril":"ori"; |
| 692 |
break; |
| 693 |
case PPC_HI6_ORIS: |
| 694 |
mnem = power? "oriu":"oris"; |
| 695 |
break; |
| 696 |
case PPC_HI6_XORI: |
| 697 |
mnem = power? "xoril":"xori"; |
| 698 |
break; |
| 699 |
case PPC_HI6_XORIS: |
| 700 |
mnem = power? "xoriu":"xoris"; |
| 701 |
break; |
| 702 |
case PPC_HI6_ANDI_DOT: |
| 703 |
mnem = power? "andil.":"andi."; |
| 704 |
break; |
| 705 |
case PPC_HI6_ANDIS_DOT: |
| 706 |
mnem = power? "andiu.":"andis."; |
| 707 |
break; |
| 708 |
} |
| 709 |
if (hi6 == PPC_HI6_ORI && rs == 0 && ra == 0 && imm == 0) |
| 710 |
debug("nop"); |
| 711 |
else |
| 712 |
debug("%s\tr%i,r%i,0x%04x", mnem, ra, rs, imm); |
| 713 |
break; |
| 714 |
case PPC_HI6_30: |
| 715 |
xo = (iword >> 2) & 7; |
| 716 |
switch (xo) { |
| 717 |
case PPC_30_RLDICR: |
| 718 |
rs = (iword >> 21) & 31; |
| 719 |
ra = (iword >> 16) & 31; |
| 720 |
sh = ((iword >> 11) & 31) | ((iword & 2) << 4); |
| 721 |
me = ((iword >> 6) & 31) | (iword & 0x20); |
| 722 |
rc = iword & 1; |
| 723 |
debug("rldicr%s\tr%i,r%i,%i,%i", |
| 724 |
rc?".":"", ra, rs, sh, me); |
| 725 |
break; |
| 726 |
default: |
| 727 |
debug("unimplemented hi6_30, xo = 0x%x", xo); |
| 728 |
} |
| 729 |
break; |
| 730 |
case PPC_HI6_31: |
| 731 |
xo = (iword >> 1) & 1023; |
| 732 |
switch (xo) { |
| 733 |
|
| 734 |
case PPC_31_CMP: |
| 735 |
case PPC_31_CMPL: |
| 736 |
bf = (iword >> 23) & 7; |
| 737 |
l_bit = (iword >> 21) & 1; |
| 738 |
ra = (iword >> 16) & 31; |
| 739 |
rb = (iword >> 11) & 31; |
| 740 |
if (xo == PPC_31_CMPL) |
| 741 |
mnem = "cmpl"; |
| 742 |
else |
| 743 |
mnem = "cmp"; |
| 744 |
debug("%s%s\t", mnem, l_bit? "d" : "w"); |
| 745 |
if (bf != 0) |
| 746 |
debug("cr%i,", bf); |
| 747 |
debug("r%i,r%i", ra, rb); |
| 748 |
break; |
| 749 |
case PPC_31_MFCR: |
| 750 |
rt = (iword >> 21) & 31; |
| 751 |
debug("mfcr\tr%i", rt); |
| 752 |
break; |
| 753 |
case PPC_31_DCBST: |
| 754 |
case PPC_31_ICBI: |
| 755 |
ra = (iword >> 16) & 31; |
| 756 |
rb = (iword >> 11) & 31; |
| 757 |
switch (xo) { |
| 758 |
case PPC_31_DCBST: mnem = "dcbst"; break; |
| 759 |
case PPC_31_ICBI: mnem = "icbi"; break; |
| 760 |
} |
| 761 |
debug("%s\tr%i,r%i", mnem, ra, rb); |
| 762 |
break; |
| 763 |
case PPC_31_MFMSR: |
| 764 |
rt = (iword >> 21) & 31; |
| 765 |
debug("mfmsr\tr%i", rt); |
| 766 |
break; |
| 767 |
case PPC_31_MTCRF: |
| 768 |
rs = (iword >> 21) & 31; |
| 769 |
mb = (iword >> 12) & 255; /* actually fxm, not mb */ |
| 770 |
debug("mtcrf\t%i,r%i", mb, rs); |
| 771 |
break; |
| 772 |
case PPC_31_MTMSR: |
| 773 |
rs = (iword >> 21) & 31; |
| 774 |
l_bit = (iword >> 16) & 1; |
| 775 |
debug("mtmsr\tr%i", rs); |
| 776 |
if (l_bit) |
| 777 |
debug(",%i", l_bit); |
| 778 |
break; |
| 779 |
case PPC_31_LBZX: |
| 780 |
case PPC_31_LBZUX: |
| 781 |
case PPC_31_LHZX: |
| 782 |
case PPC_31_LHZUX: |
| 783 |
case PPC_31_LWZX: |
| 784 |
case PPC_31_LWZUX: |
| 785 |
case PPC_31_STBX: |
| 786 |
case PPC_31_STBUX: |
| 787 |
case PPC_31_STHX: |
| 788 |
case PPC_31_STHUX: |
| 789 |
case PPC_31_STWX: |
| 790 |
case PPC_31_STWUX: |
| 791 |
/* rs for stores, rt for loads, actually */ |
| 792 |
rs = (iword >> 21) & 31; |
| 793 |
ra = (iword >> 16) & 31; |
| 794 |
rb = (iword >> 11) & 31; |
| 795 |
switch (xo) { |
| 796 |
case PPC_31_LBZX: mnem = "lbzx"; break; |
| 797 |
case PPC_31_LBZUX: mnem = "lbzux"; break; |
| 798 |
case PPC_31_LHZX: mnem = "lhzx"; break; |
| 799 |
case PPC_31_LHZUX: mnem = "lhzux"; break; |
| 800 |
case PPC_31_LWZX: |
| 801 |
mnem = power? "lx" : "lwzx"; |
| 802 |
break; |
| 803 |
case PPC_31_LWZUX: |
| 804 |
mnem = power? "lux" : "lwzux"; |
| 805 |
break; |
| 806 |
case PPC_31_STBX: mnem = "stbx"; break; |
| 807 |
case PPC_31_STBUX: mnem = "stbux"; break; |
| 808 |
case PPC_31_STHX: mnem = "sthx"; break; |
| 809 |
case PPC_31_STHUX: mnem = "sthux"; break; |
| 810 |
case PPC_31_STWX: |
| 811 |
mnem = power? "stx" : "stwx"; |
| 812 |
break; |
| 813 |
case PPC_31_STWUX: |
| 814 |
mnem = power? "stux" : "stwux"; |
| 815 |
break; |
| 816 |
} |
| 817 |
debug("%s\tr%i,r%i,r%i", mnem, rs, ra, rb); |
| 818 |
if (running) |
| 819 |
goto disasm_ret_nonewline; |
| 820 |
break; |
| 821 |
case PPC_31_NEG: |
| 822 |
case PPC_31_NEGO: |
| 823 |
rt = (iword >> 21) & 31; |
| 824 |
ra = (iword >> 16) & 31; |
| 825 |
oe_bit = (iword >> 10) & 1; |
| 826 |
rc = iword & 1; |
| 827 |
switch (xo) { |
| 828 |
case PPC_31_NEG: mnem = "neg"; break; |
| 829 |
case PPC_31_NEGO: mnem = "nego"; break; |
| 830 |
} |
| 831 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
| 832 |
break; |
| 833 |
case PPC_31_ADDZE: |
| 834 |
case PPC_31_ADDZEO: |
| 835 |
rt = (iword >> 21) & 31; |
| 836 |
ra = (iword >> 16) & 31; |
| 837 |
oe_bit = (iword >> 10) & 1; |
| 838 |
rc = iword & 1; |
| 839 |
switch (xo) { |
| 840 |
case PPC_31_ADDZE: |
| 841 |
mnem = power? "aze" : "addze"; |
| 842 |
break; |
| 843 |
case PPC_31_ADDZEO: |
| 844 |
mnem = power? "azeo" : "addzeo"; |
| 845 |
break; |
| 846 |
} |
| 847 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", rt, ra); |
| 848 |
break; |
| 849 |
case PPC_31_MTSR: |
| 850 |
/* Move to segment register (?) */ |
| 851 |
/* TODO */ |
| 852 |
debug("mtsr\tTODO"); |
| 853 |
break; |
| 854 |
case PPC_31_MTSRIN: |
| 855 |
case PPC_31_MFSRIN: |
| 856 |
/* Move to/from segment register indirect */ |
| 857 |
rt = (iword >> 21) & 31; |
| 858 |
rb = (iword >> 11) & 31; |
| 859 |
switch (xo) { |
| 860 |
case PPC_31_MTSRIN: mnem = "mtsrin"; break; |
| 861 |
case PPC_31_MFSRIN: mnem = "mfsrin"; break; |
| 862 |
} |
| 863 |
debug("%s\tr%i,r%i", mnem, rt, rb); |
| 864 |
break; |
| 865 |
case PPC_31_ADDC: |
| 866 |
case PPC_31_ADDCO: |
| 867 |
case PPC_31_ADDE: |
| 868 |
case PPC_31_ADDEO: |
| 869 |
case PPC_31_ADD: |
| 870 |
case PPC_31_ADDO: |
| 871 |
case PPC_31_MULHW: |
| 872 |
case PPC_31_MULHWU: |
| 873 |
case PPC_31_MULLW: |
| 874 |
case PPC_31_MULLWO: |
| 875 |
case PPC_31_SUBF: |
| 876 |
case PPC_31_SUBFO: |
| 877 |
case PPC_31_SUBFC: |
| 878 |
case PPC_31_SUBFCO: |
| 879 |
case PPC_31_SUBFE: |
| 880 |
case PPC_31_SUBFEO: |
| 881 |
case PPC_31_SUBFZE: |
| 882 |
case PPC_31_SUBFZEO: |
| 883 |
rt = (iword >> 21) & 31; |
| 884 |
ra = (iword >> 16) & 31; |
| 885 |
rb = (iword >> 11) & 31; |
| 886 |
oe_bit = (iword >> 10) & 1; |
| 887 |
rc = iword & 1; |
| 888 |
switch (xo) { |
| 889 |
case PPC_31_ADDC: |
| 890 |
mnem = power? "a" : "addc"; |
| 891 |
break; |
| 892 |
case PPC_31_ADDCO: |
| 893 |
mnem = power? "ao" : "addco"; |
| 894 |
break; |
| 895 |
case PPC_31_ADDE: |
| 896 |
mnem = power? "ae" : "adde"; |
| 897 |
break; |
| 898 |
case PPC_31_ADDEO: |
| 899 |
mnem = power? "aeo" : "addeo"; |
| 900 |
break; |
| 901 |
case PPC_31_ADD: |
| 902 |
mnem = power? "cax" : "add"; |
| 903 |
break; |
| 904 |
case PPC_31_ADDO: |
| 905 |
mnem = power? "caxo" : "addo"; |
| 906 |
break; |
| 907 |
case PPC_31_MULHW: mnem = "mulhw"; break; |
| 908 |
case PPC_31_MULHWU: mnem = "mulhwu"; break; |
| 909 |
case PPC_31_MULLW: |
| 910 |
mnem = power? "muls" : "mullw"; |
| 911 |
break; |
| 912 |
case PPC_31_MULLWO: |
| 913 |
mnem = power? "mulso" : "mullwo"; |
| 914 |
break; |
| 915 |
case PPC_31_SUBF: mnem = "subf"; break; |
| 916 |
case PPC_31_SUBFO: mnem = "subfo"; break; |
| 917 |
case PPC_31_SUBFC: |
| 918 |
mnem = power? "sf" : "subfc"; |
| 919 |
break; |
| 920 |
case PPC_31_SUBFCO: |
| 921 |
mnem = power? "sfo" : "subfco"; |
| 922 |
break; |
| 923 |
case PPC_31_SUBFE: |
| 924 |
mnem = power? "sfe" : "subfe"; |
| 925 |
break; |
| 926 |
case PPC_31_SUBFEO: |
| 927 |
mnem = power? "sfeo" : "subfeo"; |
| 928 |
break; |
| 929 |
case PPC_31_SUBFZE: |
| 930 |
mnem = power? "sfze" : "subfze"; |
| 931 |
break; |
| 932 |
case PPC_31_SUBFZEO: |
| 933 |
mnem = power? "sfzeo" : "subfzeo"; |
| 934 |
break; |
| 935 |
} |
| 936 |
debug("%s%s\tr%i,r%i,r%i", mnem, rc? "." : "", |
| 937 |
rt, ra, rb); |
| 938 |
break; |
| 939 |
case PPC_31_MFSPR: |
| 940 |
rt = (iword >> 21) & 31; |
| 941 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 942 |
debug("mfspr\tr%i,spr%i", rt, spr); |
| 943 |
break; |
| 944 |
case PPC_31_TLBIE: |
| 945 |
/* TODO: what is ra? The IBM online docs didn't say */ |
| 946 |
ra = 0; |
| 947 |
rb = (iword >> 11) & 31; |
| 948 |
if (power) |
| 949 |
debug("tlbi\tr%i,r%i", ra, rb); |
| 950 |
else |
| 951 |
debug("tlbie\tr%i", rb); |
| 952 |
break; |
| 953 |
case PPC_31_TLBSYNC: |
| 954 |
debug("tlbsync"); |
| 955 |
break; |
| 956 |
case PPC_31_MFTB: |
| 957 |
rt = (iword >> 21) & 31; |
| 958 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 959 |
debug("mftb%s\tr%i", spr==268? "" : |
| 960 |
(spr==269? "u" : "?"), rt); |
| 961 |
break; |
| 962 |
case PPC_31_CNTLZW: |
| 963 |
rs = (iword >> 21) & 31; |
| 964 |
ra = (iword >> 16) & 31; |
| 965 |
rc = iword & 1; |
| 966 |
mnem = power? "cntlz" : "cntlzw"; |
| 967 |
debug("%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
| 968 |
break; |
| 969 |
case PPC_31_SLW: |
| 970 |
case PPC_31_SRAW: |
| 971 |
case PPC_31_SRW: |
| 972 |
case PPC_31_AND: |
| 973 |
case PPC_31_ANDC: |
| 974 |
case PPC_31_NOR: |
| 975 |
case PPC_31_OR: |
| 976 |
case PPC_31_ORC: |
| 977 |
case PPC_31_XOR: |
| 978 |
case PPC_31_NAND: |
| 979 |
rs = (iword >> 21) & 31; |
| 980 |
ra = (iword >> 16) & 31; |
| 981 |
rb = (iword >> 11) & 31; |
| 982 |
rc = iword & 1; |
| 983 |
if (rs == rb && xo == PPC_31_OR) |
| 984 |
debug("mr%s\tr%i,r%i", rc? "." : "", ra, rs); |
| 985 |
else { |
| 986 |
switch (xo) { |
| 987 |
case PPC_31_SLW: mnem = |
| 988 |
power? "sl" : "slw"; break; |
| 989 |
case PPC_31_SRAW: mnem = |
| 990 |
power? "sra" : "sraw"; break; |
| 991 |
case PPC_31_SRW: mnem = |
| 992 |
power? "sr" : "srw"; break; |
| 993 |
case PPC_31_AND: mnem = "and"; break; |
| 994 |
case PPC_31_NAND: mnem = "nand"; break; |
| 995 |
case PPC_31_ANDC: mnem = "andc"; break; |
| 996 |
case PPC_31_NOR: mnem = "nor"; break; |
| 997 |
case PPC_31_OR: mnem = "or"; break; |
| 998 |
case PPC_31_ORC: mnem = "orc"; break; |
| 999 |
case PPC_31_XOR: mnem = "xor"; break; |
| 1000 |
} |
| 1001 |
debug("%s%s\tr%i,r%i,r%i", mnem, |
| 1002 |
rc? "." : "", ra, rs, rb); |
| 1003 |
} |
| 1004 |
break; |
| 1005 |
case PPC_31_DCCCI: |
| 1006 |
ra = (iword >> 16) & 31; |
| 1007 |
rb = (iword >> 11) & 31; |
| 1008 |
debug("dccci\tr%i,r%i", ra, rb); |
| 1009 |
break; |
| 1010 |
case PPC_31_ICCCI: |
| 1011 |
ra = (iword >> 16) & 31; |
| 1012 |
rb = (iword >> 11) & 31; |
| 1013 |
debug("iccci\tr%i,r%i", ra, rb); |
| 1014 |
break; |
| 1015 |
case PPC_31_DIVW: |
| 1016 |
case PPC_31_DIVWO: |
| 1017 |
case PPC_31_DIVWU: |
| 1018 |
case PPC_31_DIVWUO: |
| 1019 |
rt = (iword >> 21) & 31; |
| 1020 |
ra = (iword >> 16) & 31; |
| 1021 |
rb = (iword >> 11) & 31; |
| 1022 |
oe_bit = (iword >> 10) & 1; |
| 1023 |
rc = iword & 1; |
| 1024 |
switch (xo) { |
| 1025 |
case PPC_31_DIVWU: mnem = "divwu"; break; |
| 1026 |
case PPC_31_DIVWUO: mnem = "divwuo"; break; |
| 1027 |
case PPC_31_DIVW: mnem = "divw"; break; |
| 1028 |
case PPC_31_DIVWO: mnem = "divwo"; break; |
| 1029 |
} |
| 1030 |
debug("%s%s\tr%i,r%i,r%i", mnem, rc? "." : "", |
| 1031 |
rt, ra, rb); |
| 1032 |
break; |
| 1033 |
case PPC_31_MTSPR: |
| 1034 |
rs = (iword >> 21) & 31; |
| 1035 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 1036 |
debug("mtspr\tspr%i,r%i", spr, rs); |
| 1037 |
break; |
| 1038 |
case PPC_31_SYNC: |
| 1039 |
debug("%s", power? "dcs" : "sync"); |
| 1040 |
break; |
| 1041 |
case PPC_31_STSWI: |
| 1042 |
rs = (iword >> 21) & 31; |
| 1043 |
ra = (iword >> 16) & 31; |
| 1044 |
nb = (iword >> 11) & 31; |
| 1045 |
debug("%s\tr%i,r%i,%i", power? "stsi" : "stswi", |
| 1046 |
rs, ra, nb); |
| 1047 |
if (running) |
| 1048 |
goto disasm_ret_nonewline; |
| 1049 |
break; |
| 1050 |
case PPC_31_SRAWI: |
| 1051 |
rs = (iword >> 21) & 31; |
| 1052 |
ra = (iword >> 16) & 31; |
| 1053 |
sh = (iword >> 11) & 31; |
| 1054 |
rc = iword & 1; |
| 1055 |
mnem = power? "srai" : "srawi"; |
| 1056 |
debug("%s%s\tr%i,r%i,%i", mnem, |
| 1057 |
rc? "." : "", ra, rs, sh); |
| 1058 |
break; |
| 1059 |
case PPC_31_EIEIO: |
| 1060 |
debug("%s", power? "eieio?" : "eieio"); |
| 1061 |
break; |
| 1062 |
case PPC_31_EXTSB: |
| 1063 |
case PPC_31_EXTSH: |
| 1064 |
case PPC_31_EXTSW: |
| 1065 |
rs = (iword >> 21) & 31; |
| 1066 |
ra = (iword >> 16) & 31; |
| 1067 |
rc = iword & 1; |
| 1068 |
switch (xo) { |
| 1069 |
case PPC_31_EXTSB: |
| 1070 |
mnem = power? "exts" : "extsb"; |
| 1071 |
break; |
| 1072 |
case PPC_31_EXTSH: |
| 1073 |
mnem = "extsh"; |
| 1074 |
break; |
| 1075 |
case PPC_31_EXTSW: |
| 1076 |
mnem = "extsw"; |
| 1077 |
break; |
| 1078 |
} |
| 1079 |
debug("%s%s\tr%i,r%i", mnem, rc? "." : "", ra, rs); |
| 1080 |
break; |
| 1081 |
default: |
| 1082 |
debug("unimplemented hi6_31, xo = 0x%x", xo); |
| 1083 |
} |
| 1084 |
break; |
| 1085 |
case PPC_HI6_LWZ: |
| 1086 |
case PPC_HI6_LWZU: |
| 1087 |
case PPC_HI6_LHZ: |
| 1088 |
case PPC_HI6_LHZU: |
| 1089 |
case PPC_HI6_LHA: |
| 1090 |
case PPC_HI6_LHAU: |
| 1091 |
case PPC_HI6_LBZ: |
| 1092 |
case PPC_HI6_LBZU: |
| 1093 |
case PPC_HI6_STW: |
| 1094 |
case PPC_HI6_STWU: |
| 1095 |
case PPC_HI6_STH: |
| 1096 |
case PPC_HI6_STHU: |
| 1097 |
case PPC_HI6_STB: |
| 1098 |
case PPC_HI6_STBU: |
| 1099 |
case PPC_HI6_STMW: |
| 1100 |
case PPC_HI6_LFD: |
| 1101 |
case PPC_HI6_STFD: |
| 1102 |
/* NOTE: Loads use rt, not rs, but are otherwise similar |
| 1103 |
to stores */ |
| 1104 |
rs = (iword >> 21) & 31; |
| 1105 |
ra = (iword >> 16) & 31; |
| 1106 |
imm = (int16_t)(iword & 0xffff); |
| 1107 |
fpreg = 0; |
| 1108 |
switch (hi6) { |
| 1109 |
case PPC_HI6_LWZ: mnem = power? "l" : "lwz"; break; |
| 1110 |
case PPC_HI6_LWZU: mnem = power? "lu" : "lwzu"; break; |
| 1111 |
case PPC_HI6_LHZ: mnem = "lhz"; break; |
| 1112 |
case PPC_HI6_LHZU: mnem = "lhzu"; break; |
| 1113 |
case PPC_HI6_LHA: mnem = "lha"; break; |
| 1114 |
case PPC_HI6_LHAU: mnem = "lhau"; break; |
| 1115 |
case PPC_HI6_LBZ: mnem = "lbz"; break; |
| 1116 |
case PPC_HI6_LBZU: mnem = "lbzu"; break; |
| 1117 |
case PPC_HI6_STW: mnem = power? "st" : "stw"; break; |
| 1118 |
case PPC_HI6_STWU: mnem = power? "stu" : "stwu"; break; |
| 1119 |
case PPC_HI6_STH: mnem = "sth"; break; |
| 1120 |
case PPC_HI6_STHU: mnem = "sthu"; break; |
| 1121 |
case PPC_HI6_STB: mnem = "stb"; break; |
| 1122 |
case PPC_HI6_STBU: mnem = "stbu"; break; |
| 1123 |
case PPC_HI6_LMW: mnem = power? "lm" : "lmw"; break; |
| 1124 |
case PPC_HI6_STMW: mnem = power? "stm" : "stmw"; break; |
| 1125 |
case PPC_HI6_LFD: fpreg = 1; mnem = "lfd"; break; |
| 1126 |
case PPC_HI6_STFD: fpreg = 1; mnem = "stfd"; break; |
| 1127 |
} |
| 1128 |
debug("%s\t", mnem); |
| 1129 |
if (fpreg) |
| 1130 |
debug("f"); |
| 1131 |
else |
| 1132 |
debug("r"); |
| 1133 |
debug("%i,%i(r%i)", rs, imm, ra); |
| 1134 |
if (running) |
| 1135 |
goto disasm_ret_nonewline; |
| 1136 |
break; |
| 1137 |
default: |
| 1138 |
/* TODO */ |
| 1139 |
debug("unimplemented hi6 = 0x%02x", hi6); |
| 1140 |
} |
| 1141 |
|
| 1142 |
disasm_ret: |
| 1143 |
debug("\n"); |
| 1144 |
disasm_ret_nonewline: |
| 1145 |
return sizeof(iword); |
| 1146 |
} |
| 1147 |
|
| 1148 |
|
| 1149 |
/* |
| 1150 |
* show_trace(): |
| 1151 |
* |
| 1152 |
* Show trace tree. This function should be called every time |
| 1153 |
* a function is called. cpu->cd.ppc.trace_tree_depth is increased here |
| 1154 |
* and should not be increased by the caller. |
| 1155 |
* |
| 1156 |
* Note: This function should not be called if show_trace_tree == 0. |
| 1157 |
*/ |
| 1158 |
static void show_trace(struct cpu *cpu) |
| 1159 |
{ |
| 1160 |
uint64_t offset, addr = cpu->pc; |
| 1161 |
int x, n_args_to_print; |
| 1162 |
char strbuf[60]; |
| 1163 |
char *symbol; |
| 1164 |
|
| 1165 |
cpu->cd.ppc.trace_tree_depth ++; |
| 1166 |
|
| 1167 |
if (cpu->machine->ncpus > 1) |
| 1168 |
debug("cpu%i:", cpu->cpu_id); |
| 1169 |
|
| 1170 |
symbol = get_symbol_name(&cpu->machine->symbol_context, addr, &offset); |
| 1171 |
|
| 1172 |
for (x=0; x<cpu->cd.ppc.trace_tree_depth; x++) |
| 1173 |
debug(" "); |
| 1174 |
|
| 1175 |
/* debug("<%s>\n", symbol!=NULL? symbol : "no symbol"); */ |
| 1176 |
|
| 1177 |
if (symbol != NULL) |
| 1178 |
debug("<%s(", symbol); |
| 1179 |
else { |
| 1180 |
debug("<0x"); |
| 1181 |
if (cpu->cd.ppc.bits == 32) |
| 1182 |
debug("%08x", (int)addr); |
| 1183 |
else |
| 1184 |
debug("%016llx", (long long)addr); |
| 1185 |
debug("("); |
| 1186 |
} |
| 1187 |
|
| 1188 |
/* |
| 1189 |
* TODO: The number of arguments and the symbol type of each |
| 1190 |
* argument should be taken from the symbol table, in some way. |
| 1191 |
*/ |
| 1192 |
n_args_to_print = 5; |
| 1193 |
|
| 1194 |
for (x=0; x<n_args_to_print; x++) { |
| 1195 |
int64_t d = cpu->cd.ppc.gpr[x + 3]; |
| 1196 |
|
| 1197 |
if (d > -256 && d < 256) |
| 1198 |
debug("%i", (int)d); |
| 1199 |
else if (memory_points_to_string(cpu, cpu->mem, d, 1)) { |
| 1200 |
debug("\"%s\"", memory_conv_to_string(cpu, |
| 1201 |
cpu->mem, d, strbuf, sizeof(strbuf))); |
| 1202 |
if (strlen(strbuf) >= sizeof(strbuf)-1) |
| 1203 |
debug(".."); |
| 1204 |
} else { |
| 1205 |
if (cpu->cd.ppc.bits == 32) |
| 1206 |
debug("0x%x", (int)d); |
| 1207 |
else |
| 1208 |
debug("0x%llx", (long long)d); |
| 1209 |
} |
| 1210 |
|
| 1211 |
if (x < n_args_to_print - 1) |
| 1212 |
debug(","); |
| 1213 |
|
| 1214 |
if (x == n_args_to_print - 1) |
| 1215 |
break; |
| 1216 |
} |
| 1217 |
|
| 1218 |
if (n_args_to_print > 9) |
| 1219 |
debug(".."); |
| 1220 |
|
| 1221 |
debug(")>\n"); |
| 1222 |
} |
| 1223 |
|
| 1224 |
|
| 1225 |
/* |
| 1226 |
* update_cr0(): |
| 1227 |
* |
| 1228 |
* Sets the top 4 bits of the CR register. |
| 1229 |
*/ |
| 1230 |
static void update_cr0(struct cpu *cpu, uint64_t value) |
| 1231 |
{ |
| 1232 |
int c; |
| 1233 |
|
| 1234 |
if (cpu->cd.ppc.bits == 64) { |
| 1235 |
if ((int64_t)value < 0) |
| 1236 |
c = 8; |
| 1237 |
else if ((int64_t)value > 0) |
| 1238 |
c = 4; |
| 1239 |
else |
| 1240 |
c = 2; |
| 1241 |
} else { |
| 1242 |
if ((int32_t)value < 0) |
| 1243 |
c = 8; |
| 1244 |
else if ((int32_t)value > 0) |
| 1245 |
c = 4; |
| 1246 |
else |
| 1247 |
c = 2; |
| 1248 |
} |
| 1249 |
|
| 1250 |
/* SO bit, copied from XER: */ |
| 1251 |
c |= ((cpu->cd.ppc.xer >> 31) & 1); |
| 1252 |
|
| 1253 |
cpu->cd.ppc.cr &= ~((uint32_t)0xf << 28); |
| 1254 |
cpu->cd.ppc.cr |= ((uint32_t)c << 28); |
| 1255 |
} |
| 1256 |
|
| 1257 |
|
| 1258 |
/* |
| 1259 |
* ppc_cpu_run_instr(): |
| 1260 |
* |
| 1261 |
* Execute one instruction on a specific CPU. |
| 1262 |
* |
| 1263 |
* Return value is the number of instructions executed during this call, |
| 1264 |
* 0 if no instruction was executed. |
| 1265 |
*/ |
| 1266 |
int ppc_cpu_run_instr(struct emul *emul, struct cpu *cpu) |
| 1267 |
{ |
| 1268 |
uint32_t iword; |
| 1269 |
unsigned char buf[4]; |
| 1270 |
unsigned char tmp_data[8]; |
| 1271 |
size_t tmp_data_len; |
| 1272 |
char *mnem = NULL; |
| 1273 |
int r, hi6, rt, rs, ra, rb, xo, lev, sh, me, rc, imm, l_bit, oe_bit; |
| 1274 |
int c, i, spr, aa_bit, bo, bi, bh, lk_bit, bf, ctr_ok, cond_ok; |
| 1275 |
int update, load, mb, nb, bt, ba, bb, fpreg, arithflag, old_ca, bfa; |
| 1276 |
uint64_t tmp=0, tmp2, addr; |
| 1277 |
uint64_t cached_pc; |
| 1278 |
|
| 1279 |
cached_pc = cpu->cd.ppc.pc_last = cpu->pc & ~3; |
| 1280 |
|
| 1281 |
/* Check PC against breakpoints: */ |
| 1282 |
if (!single_step) |
| 1283 |
for (i=0; i<cpu->machine->n_breakpoints; i++) |
| 1284 |
if (cached_pc == cpu->machine->breakpoint_addr[i]) { |
| 1285 |
fatal("Breakpoint reached, pc=0x"); |
| 1286 |
if (cpu->cd.ppc.bits == 32) |
| 1287 |
fatal("%08x", (int)cached_pc); |
| 1288 |
else |
| 1289 |
fatal("%016llx", (long long)cached_pc); |
| 1290 |
fatal("\n"); |
| 1291 |
single_step = 1; |
| 1292 |
return 0; |
| 1293 |
} |
| 1294 |
|
| 1295 |
/* Update the Time Base and Decrementer: */ |
| 1296 |
if ((++ cpu->cd.ppc.tbl) == 0) |
| 1297 |
cpu->cd.ppc.tbu ++; |
| 1298 |
|
| 1299 |
cpu->cd.ppc.dec --; |
| 1300 |
/* TODO: dec interrupt! */ |
| 1301 |
|
| 1302 |
/* TODO: hdec for POWER4+ */ |
| 1303 |
|
| 1304 |
/* ROM emulation: (TODO: non-OF-emuls) */ |
| 1305 |
if (cpu->pc == cpu->cd.ppc.of_emul_addr && |
| 1306 |
cpu->machine->prom_emulation) { |
| 1307 |
int res = of_emul(cpu); |
| 1308 |
if (res) { |
| 1309 |
cpu->pc = cpu->cd.ppc.lr; |
| 1310 |
} |
| 1311 |
return 100; |
| 1312 |
} |
| 1313 |
|
| 1314 |
r = cpu->memory_rw(cpu, cpu->mem, cached_pc, &buf[0], sizeof(buf), |
| 1315 |
MEM_READ, CACHE_INSTRUCTION | PHYSICAL); |
| 1316 |
if (!r) |
| 1317 |
return 0; |
| 1318 |
|
| 1319 |
iword = (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3]; |
| 1320 |
|
| 1321 |
if (cpu->machine->instruction_trace) |
| 1322 |
ppc_cpu_disassemble_instr(cpu, buf, 1, 0, 0); |
| 1323 |
|
| 1324 |
cpu->pc += sizeof(iword); |
| 1325 |
cached_pc += sizeof(iword); |
| 1326 |
|
| 1327 |
hi6 = iword >> 26; |
| 1328 |
|
| 1329 |
switch (hi6) { |
| 1330 |
|
| 1331 |
case PPC_HI6_MULLI: |
| 1332 |
rt = (iword >> 21) & 31; |
| 1333 |
ra = (iword >> 16) & 31; |
| 1334 |
imm = (int16_t)(iword & 0xffff); |
| 1335 |
cpu->cd.ppc.gpr[rt] = (int64_t)cpu->cd.ppc.gpr[ra] |
| 1336 |
* (int64_t)imm; |
| 1337 |
break; |
| 1338 |
|
| 1339 |
case PPC_HI6_SUBFIC: |
| 1340 |
rt = (iword >> 21) & 31; |
| 1341 |
ra = (iword >> 16) & 31; |
| 1342 |
imm = (int16_t)(iword & 0xffff); |
| 1343 |
cpu->cd.ppc.xer &= ~PPC_XER_CA; |
| 1344 |
if (cpu->cd.ppc.bits == 32) { |
| 1345 |
tmp = (~cpu->cd.ppc.gpr[ra]) & 0xffffffff; |
| 1346 |
cpu->cd.ppc.gpr[rt] = tmp + imm + 1; |
| 1347 |
/* TODO: is this CA correct? */ |
| 1348 |
/* printf("subfic: tmp = %016llx\n", (long long)tmp); |
| 1349 |
printf("subfic: rt = %016llx\n\n", |
| 1350 |
(long long)cpu->cd.ppc.gpr[rt]); */ |
| 1351 |
if ((tmp >> 32) != (cpu->cd.ppc.gpr[rt] >> 32)) |
| 1352 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 1353 |
/* High 32 bits are probably undefined in |
| 1354 |
32-bit mode (I hope) */ |
| 1355 |
} else { |
| 1356 |
/* |
| 1357 |
* Ugly, but I can't figure out a way right now how |
| 1358 |
* to get the carry bit out of a 64-bit addition, |
| 1359 |
* without access to more-than-64-bit operations in C. |
| 1360 |
*/ |
| 1361 |
tmp = ~cpu->cd.ppc.gpr[ra]; |
| 1362 |
tmp2 = (tmp >> 32); /* High 32 bits */ |
| 1363 |
tmp &= 0xffffffff; /* Low 32 bits */ |
| 1364 |
|
| 1365 |
tmp += imm + 1; |
| 1366 |
if ((tmp >> 32) == 0) { |
| 1367 |
/* No change to upper 32 bits */ |
| 1368 |
} else if ((tmp >> 32) == 1) { |
| 1369 |
/* Positive change: */ |
| 1370 |
tmp2 ++; |
| 1371 |
} else { |
| 1372 |
/* Negative change: */ |
| 1373 |
tmp2 --; |
| 1374 |
} |
| 1375 |
|
| 1376 |
tmp &= 0xffffffff; |
| 1377 |
|
| 1378 |
/* TODO: is this CA calculation correct? */ |
| 1379 |
if ((tmp2 >> 32) != 0) |
| 1380 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 1381 |
|
| 1382 |
cpu->cd.ppc.gpr[rt] = (tmp2 << 32) + tmp; |
| 1383 |
} |
| 1384 |
break; |
| 1385 |
|
| 1386 |
case PPC_HI6_CMPLI: |
| 1387 |
case PPC_HI6_CMPI: |
| 1388 |
bf = (iword >> 23) & 7; |
| 1389 |
l_bit = (iword >> 21) & 1; |
| 1390 |
ra = (iword >> 16) & 31; |
| 1391 |
if (hi6 == PPC_HI6_CMPLI) |
| 1392 |
imm = iword & 0xffff; |
| 1393 |
else |
| 1394 |
imm = (int16_t)(iword & 0xffff); |
| 1395 |
tmp = cpu->cd.ppc.gpr[ra]; |
| 1396 |
|
| 1397 |
if (hi6 == PPC_HI6_CMPI) { |
| 1398 |
if (!l_bit) |
| 1399 |
tmp = (int64_t)(int32_t)tmp; |
| 1400 |
if ((int64_t)tmp < (int64_t)imm) |
| 1401 |
c = 8; |
| 1402 |
else if ((int64_t)tmp > (int64_t)imm) |
| 1403 |
c = 4; |
| 1404 |
else |
| 1405 |
c = 2; |
| 1406 |
} else { |
| 1407 |
if (!l_bit) |
| 1408 |
tmp &= 0xffffffff; |
| 1409 |
if ((uint64_t)tmp < (uint64_t)imm) |
| 1410 |
c = 8; |
| 1411 |
else if ((uint64_t)tmp > (uint64_t)imm) |
| 1412 |
c = 4; |
| 1413 |
else |
| 1414 |
c = 2; |
| 1415 |
} |
| 1416 |
|
| 1417 |
/* SO bit, copied from XER: */ |
| 1418 |
c |= ((cpu->cd.ppc.xer >> 31) & 1); |
| 1419 |
|
| 1420 |
cpu->cd.ppc.cr &= ~(0xf << (28 - 4*bf)); |
| 1421 |
cpu->cd.ppc.cr |= (c << (28 - 4*bf)); |
| 1422 |
break; |
| 1423 |
|
| 1424 |
case PPC_HI6_ADDIC: |
| 1425 |
case PPC_HI6_ADDIC_DOT: |
| 1426 |
rt = (iword >> 21) & 31; |
| 1427 |
ra = (iword >> 16) & 31; |
| 1428 |
rc = hi6 == PPC_HI6_ADDIC_DOT; |
| 1429 |
imm = (int16_t)(iword & 0xffff); |
| 1430 |
/* NOTE: Addic doesn't clear CA! */ |
| 1431 |
if (cpu->cd.ppc.bits == 32) { |
| 1432 |
tmp = cpu->cd.ppc.gpr[ra] & 0xffffffff; |
| 1433 |
cpu->cd.ppc.gpr[rt] = tmp + (uint32_t)imm; |
| 1434 |
/* TODO: is this CA correct? */ |
| 1435 |
/* printf("addic: tmp = %016llx\n", (long long)tmp); |
| 1436 |
printf("addic: rt = %016llx\n\n", |
| 1437 |
(long long)cpu->cd.ppc.gpr[rt]); */ |
| 1438 |
if ((tmp >> 32) != (cpu->cd.ppc.gpr[rt] >> 32)) |
| 1439 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 1440 |
/* High 32 bits are probably undefined in |
| 1441 |
32-bit mode (I hope) */ |
| 1442 |
} else { |
| 1443 |
/* See comment about ugliness regarding SUBFIC */ |
| 1444 |
tmp = cpu->cd.ppc.gpr[ra]; |
| 1445 |
tmp2 = (tmp >> 32); /* High 32 bits */ |
| 1446 |
tmp &= 0xffffffff; /* Low 32 bits */ |
| 1447 |
|
| 1448 |
tmp += (int64_t)imm; |
| 1449 |
if ((tmp >> 32) == 0) { |
| 1450 |
/* No change to upper 32 bits */ |
| 1451 |
} else if ((tmp >> 32) == 1) { |
| 1452 |
/* Positive change: */ |
| 1453 |
tmp2 ++; |
| 1454 |
} else { |
| 1455 |
/* Negative change: */ |
| 1456 |
tmp2 --; |
| 1457 |
} |
| 1458 |
|
| 1459 |
tmp &= 0xffffffff; |
| 1460 |
|
| 1461 |
/* TODO: is this CA calculation correct? */ |
| 1462 |
if ((tmp2 >> 32) != 0) |
| 1463 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 1464 |
|
| 1465 |
cpu->cd.ppc.gpr[rt] = (tmp2 << 32) + tmp; |
| 1466 |
} |
| 1467 |
if (rc) |
| 1468 |
update_cr0(cpu, cpu->cd.ppc.gpr[rt]); |
| 1469 |
break; |
| 1470 |
|
| 1471 |
case PPC_HI6_ADDI: |
| 1472 |
case PPC_HI6_ADDIS: |
| 1473 |
rt = (iword >> 21) & 31; |
| 1474 |
ra = (iword >> 16) & 31; |
| 1475 |
if (hi6 == PPC_HI6_ADDI) |
| 1476 |
imm = (int16_t)(iword & 0xffff); |
| 1477 |
else |
| 1478 |
imm = (int32_t)((iword & 0xffff) << 16); |
| 1479 |
if (ra == 0) |
| 1480 |
tmp = 0; |
| 1481 |
else |
| 1482 |
tmp = cpu->cd.ppc.gpr[ra]; |
| 1483 |
cpu->cd.ppc.gpr[rt] = tmp + imm; |
| 1484 |
break; |
| 1485 |
|
| 1486 |
case PPC_HI6_BC: |
| 1487 |
aa_bit = (iword >> 1) & 1; |
| 1488 |
lk_bit = iword & 1; |
| 1489 |
bo = (iword >> 21) & 31; |
| 1490 |
bi = (iword >> 16) & 31; |
| 1491 |
/* Sign-extend addr: */ |
| 1492 |
addr = (int64_t)(int16_t)(iword & 0xfffc); |
| 1493 |
|
| 1494 |
if (!aa_bit) |
| 1495 |
addr += cpu->cd.ppc.pc_last; |
| 1496 |
|
| 1497 |
if (cpu->cd.ppc.bits == 32) |
| 1498 |
addr &= 0xffffffff; |
| 1499 |
|
| 1500 |
if (!(bo & 4)) |
| 1501 |
cpu->cd.ppc.ctr --; |
| 1502 |
ctr_ok = (bo >> 2) & 1; |
| 1503 |
tmp = cpu->cd.ppc.ctr; |
| 1504 |
if (cpu->cd.ppc.bits == 32) |
| 1505 |
tmp &= 0xffffffff; |
| 1506 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
| 1507 |
|
| 1508 |
cond_ok = (bo >> 4) & 1; |
| 1509 |
cond_ok |= ( ((bo >> 3) & 1) == |
| 1510 |
((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
| 1511 |
|
| 1512 |
if (lk_bit) |
| 1513 |
cpu->cd.ppc.lr = cpu->pc; |
| 1514 |
if (ctr_ok && cond_ok) |
| 1515 |
cpu->pc = addr & ~3; |
| 1516 |
if (lk_bit && cpu->machine->show_trace_tree) |
| 1517 |
show_trace(cpu); |
| 1518 |
break; |
| 1519 |
|
| 1520 |
case PPC_HI6_SC: |
| 1521 |
lev = (iword >> 5) & 0x7f; |
| 1522 |
if (cpu->machine->userland_emul != NULL) { |
| 1523 |
useremul_syscall(cpu, lev); |
| 1524 |
} else { |
| 1525 |
fatal("[ PPC: pc = 0x%016llx, sc not yet " |
| 1526 |
"implemented ]\n", (long long)cached_pc); |
| 1527 |
cpu->running = 0; |
| 1528 |
return 0; |
| 1529 |
} |
| 1530 |
break; |
| 1531 |
|
| 1532 |
case PPC_HI6_B: |
| 1533 |
aa_bit = (iword & 2) >> 1; |
| 1534 |
lk_bit = iword & 1; |
| 1535 |
/* Sign-extend addr: */ |
| 1536 |
addr = (int64_t)(int32_t)((iword & 0x03fffffc) << 6); |
| 1537 |
addr = (int64_t)addr >> 6; |
| 1538 |
|
| 1539 |
if (!aa_bit) |
| 1540 |
addr += cpu->cd.ppc.pc_last; |
| 1541 |
|
| 1542 |
if (cpu->cd.ppc.bits == 32) |
| 1543 |
addr &= 0xffffffff; |
| 1544 |
|
| 1545 |
if (lk_bit) |
| 1546 |
cpu->cd.ppc.lr = cpu->pc; |
| 1547 |
|
| 1548 |
cpu->pc = addr; |
| 1549 |
|
| 1550 |
if (lk_bit && cpu->machine->show_trace_tree) |
| 1551 |
show_trace(cpu); |
| 1552 |
break; |
| 1553 |
|
| 1554 |
case PPC_HI6_19: |
| 1555 |
xo = (iword >> 1) & 1023; |
| 1556 |
switch (xo) { |
| 1557 |
|
| 1558 |
case PPC_19_MCRF: |
| 1559 |
bf = (iword >> 23) & 7; |
| 1560 |
bfa = (iword >> 18) & 7; |
| 1561 |
tmp = cpu->cd.ppc.cr >> (28 - bfa*4); |
| 1562 |
tmp &= 0xf; |
| 1563 |
cpu->cd.ppc.cr &= ~(0xf << (28 - bf*4)); |
| 1564 |
cpu->cd.ppc.cr |= (tmp << (28 - bf*4)); |
| 1565 |
break; |
| 1566 |
|
| 1567 |
case PPC_19_BCLR: |
| 1568 |
case PPC_19_BCCTR: |
| 1569 |
bo = (iword >> 21) & 31; |
| 1570 |
bi = (iword >> 16) & 31; |
| 1571 |
bh = (iword >> 11) & 3; |
| 1572 |
lk_bit = iword & 1; |
| 1573 |
if (xo == PPC_19_BCLR) { |
| 1574 |
addr = cpu->cd.ppc.lr; |
| 1575 |
if (!(bo & 4)) |
| 1576 |
cpu->cd.ppc.ctr --; |
| 1577 |
ctr_ok = (bo >> 2) & 1; |
| 1578 |
tmp = cpu->cd.ppc.ctr; |
| 1579 |
if (cpu->cd.ppc.bits == 32) |
| 1580 |
tmp &= 0xffffffff; |
| 1581 |
ctr_ok |= ( (tmp != 0) ^ ((bo >> 1) & 1) ); |
| 1582 |
if (!quiet_mode && !lk_bit && |
| 1583 |
cpu->machine->show_trace_tree) { |
| 1584 |
cpu->cd.ppc.trace_tree_depth --; |
| 1585 |
/* TODO: show return value? */ |
| 1586 |
} |
| 1587 |
} else { |
| 1588 |
addr = cpu->cd.ppc.ctr; |
| 1589 |
ctr_ok = 1; |
| 1590 |
} |
| 1591 |
cond_ok = (bo >> 4) & 1; |
| 1592 |
cond_ok |= ( ((bo >> 3) & 1) == |
| 1593 |
((cpu->cd.ppc.cr >> (31-bi)) & 1) ); |
| 1594 |
if (lk_bit) |
| 1595 |
cpu->cd.ppc.lr = cpu->pc; |
| 1596 |
if (ctr_ok && cond_ok) { |
| 1597 |
cpu->pc = addr & ~3; |
| 1598 |
if (cpu->cd.ppc.bits == 32) |
| 1599 |
cpu->pc &= 0xffffffff; |
| 1600 |
} |
| 1601 |
if (lk_bit && cpu->machine->show_trace_tree) |
| 1602 |
show_trace(cpu); |
| 1603 |
break; |
| 1604 |
|
| 1605 |
case PPC_19_ISYNC: |
| 1606 |
/* TODO: actually sync */ |
| 1607 |
break; |
| 1608 |
|
| 1609 |
case PPC_19_CRAND: |
| 1610 |
case PPC_19_CRXOR: |
| 1611 |
case PPC_19_CROR: |
| 1612 |
case PPC_19_CRNAND: |
| 1613 |
case PPC_19_CRNOR: |
| 1614 |
case PPC_19_CRANDC: |
| 1615 |
case PPC_19_CREQV: |
| 1616 |
case PPC_19_CRORC: |
| 1617 |
bt = (iword >> 21) & 31; |
| 1618 |
ba = (iword >> 16) & 31; |
| 1619 |
bb = (iword >> 11) & 31; |
| 1620 |
ba = (cpu->cd.ppc.cr >> (31-ba)) & 1; |
| 1621 |
bb = (cpu->cd.ppc.cr >> (31-bb)) & 1; |
| 1622 |
cpu->cd.ppc.cr &= ~(1 << (31-bt)); |
| 1623 |
switch (xo) { |
| 1624 |
case PPC_19_CRXOR: |
| 1625 |
if (ba ^ bb) |
| 1626 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
| 1627 |
break; |
| 1628 |
case PPC_19_CROR: |
| 1629 |
if (ba | bb) |
| 1630 |
cpu->cd.ppc.cr |= (1 << (31-bt)); |
| 1631 |
break; |
| 1632 |
default: |
| 1633 |
fatal("[ TODO: crXXX, xo = %i, " |
| 1634 |
"pc = 0x%016llx ]\n", |
| 1635 |
xo, (long long) (cpu->cd.ppc.pc_last)); |
| 1636 |
cpu->running = 0; |
| 1637 |
return 0; |
| 1638 |
} |
| 1639 |
break; |
| 1640 |
|
| 1641 |
default: |
| 1642 |
fatal("[ unimplemented PPC hi6_19, xo = 0x%04x, " |
| 1643 |
"pc = 0x%016llx ]\n", |
| 1644 |
xo, (long long) (cpu->cd.ppc.pc_last)); |
| 1645 |
cpu->running = 0; |
| 1646 |
return 0; |
| 1647 |
} |
| 1648 |
break; |
| 1649 |
|
| 1650 |
case PPC_HI6_RLWIMI: |
| 1651 |
case PPC_HI6_RLWINM: |
| 1652 |
rs = (iword >> 21) & 31; |
| 1653 |
ra = (iword >> 16) & 31; |
| 1654 |
sh = (iword >> 11) & 31; |
| 1655 |
mb = (iword >> 6) & 31; |
| 1656 |
me = (iword >> 1) & 31; |
| 1657 |
rc = iword & 1; |
| 1658 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1659 |
/* TODO: Fix this, its performance is awful: */ |
| 1660 |
while (sh-- != 0) { |
| 1661 |
int b = (tmp >> 31) & 1; |
| 1662 |
tmp = (tmp << 1) | b; |
| 1663 |
} |
| 1664 |
|
| 1665 |
switch (hi6) { |
| 1666 |
case PPC_HI6_RLWIMI: |
| 1667 |
for (;;) { |
| 1668 |
uint64_t mask; |
| 1669 |
mask = (uint64_t)1 << (31-mb); |
| 1670 |
cpu->cd.ppc.gpr[ra] &= ~mask; |
| 1671 |
cpu->cd.ppc.gpr[ra] |= (tmp & mask); |
| 1672 |
if (mb == me) |
| 1673 |
break; |
| 1674 |
mb ++; |
| 1675 |
if (mb == 32) |
| 1676 |
mb = 0; |
| 1677 |
} |
| 1678 |
break; |
| 1679 |
case PPC_HI6_RLWINM: |
| 1680 |
cpu->cd.ppc.gpr[ra] = 0; |
| 1681 |
for (;;) { |
| 1682 |
uint64_t mask; |
| 1683 |
mask = (uint64_t)1 << (31-mb); |
| 1684 |
cpu->cd.ppc.gpr[ra] |= (tmp & mask); |
| 1685 |
if (mb == me) |
| 1686 |
break; |
| 1687 |
mb ++; |
| 1688 |
if (mb == 32) |
| 1689 |
mb = 0; |
| 1690 |
} |
| 1691 |
break; |
| 1692 |
} |
| 1693 |
if (rc) |
| 1694 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 1695 |
break; |
| 1696 |
|
| 1697 |
case PPC_HI6_ORI: |
| 1698 |
case PPC_HI6_ORIS: |
| 1699 |
rs = (iword >> 21) & 31; |
| 1700 |
ra = (iword >> 16) & 31; |
| 1701 |
if (hi6 == PPC_HI6_ORI) |
| 1702 |
imm = (iword & 0xffff); |
| 1703 |
else |
| 1704 |
imm = (iword & 0xffff) << 16; |
| 1705 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1706 |
cpu->cd.ppc.gpr[ra] = tmp | (uint32_t)imm; |
| 1707 |
break; |
| 1708 |
|
| 1709 |
case PPC_HI6_XORI: |
| 1710 |
case PPC_HI6_XORIS: |
| 1711 |
rs = (iword >> 21) & 31; |
| 1712 |
ra = (iword >> 16) & 31; |
| 1713 |
if (hi6 == PPC_HI6_XORI) |
| 1714 |
imm = (iword & 0xffff); |
| 1715 |
else |
| 1716 |
imm = (iword & 0xffff) << 16; |
| 1717 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1718 |
cpu->cd.ppc.gpr[ra] = tmp ^ (uint32_t)imm; |
| 1719 |
break; |
| 1720 |
|
| 1721 |
case PPC_HI6_ANDI_DOT: |
| 1722 |
case PPC_HI6_ANDIS_DOT: |
| 1723 |
rs = (iword >> 21) & 31; |
| 1724 |
ra = (iword >> 16) & 31; |
| 1725 |
if (hi6 == PPC_HI6_ANDI_DOT) |
| 1726 |
imm = (iword & 0xffff); |
| 1727 |
else |
| 1728 |
imm = (iword & 0xffff) << 16; |
| 1729 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1730 |
cpu->cd.ppc.gpr[ra] = tmp & (uint32_t)imm; |
| 1731 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 1732 |
break; |
| 1733 |
|
| 1734 |
case PPC_HI6_30: |
| 1735 |
xo = (iword >> 2) & 7; |
| 1736 |
switch (xo) { |
| 1737 |
case PPC_30_RLDICR: |
| 1738 |
if (cpu->cd.ppc.bits == 32) { |
| 1739 |
/* TODO: Illegal instruction. */ |
| 1740 |
break; |
| 1741 |
} |
| 1742 |
rs = (iword >> 21) & 31; |
| 1743 |
ra = (iword >> 16) & 31; |
| 1744 |
sh = ((iword >> 11) & 31) | ((iword & 2) << 4); |
| 1745 |
me = ((iword >> 6) & 31) | (iword & 0x20); |
| 1746 |
rc = iword & 1; |
| 1747 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1748 |
/* TODO: Fix this, its performance is awful: */ |
| 1749 |
while (sh-- != 0) { |
| 1750 |
int b = (tmp >> 63) & 1; |
| 1751 |
tmp = (tmp << 1) | b; |
| 1752 |
} |
| 1753 |
while (me++ < 63) |
| 1754 |
tmp &= ~((uint64_t)1 << (63-me)); |
| 1755 |
cpu->cd.ppc.gpr[ra] = tmp; |
| 1756 |
if (rc) |
| 1757 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 1758 |
break; |
| 1759 |
default: |
| 1760 |
fatal("[ unimplemented PPC hi6_30, xo = 0x%04x, " |
| 1761 |
"pc = 0x%016llx ]\n", |
| 1762 |
xo, (long long) (cpu->cd.ppc.pc_last)); |
| 1763 |
cpu->running = 0; |
| 1764 |
return 0; |
| 1765 |
} |
| 1766 |
break; |
| 1767 |
|
| 1768 |
case PPC_HI6_31: |
| 1769 |
xo = (iword >> 1) & 1023; |
| 1770 |
switch (xo) { |
| 1771 |
|
| 1772 |
case PPC_31_CMPL: |
| 1773 |
case PPC_31_CMP: |
| 1774 |
bf = (iword >> 23) & 7; |
| 1775 |
l_bit = (iword >> 21) & 1; |
| 1776 |
ra = (iword >> 16) & 31; |
| 1777 |
rb = (iword >> 11) & 31; |
| 1778 |
|
| 1779 |
tmp = cpu->cd.ppc.gpr[ra]; |
| 1780 |
tmp2 = cpu->cd.ppc.gpr[rb]; |
| 1781 |
|
| 1782 |
if (hi6 == PPC_31_CMP) { |
| 1783 |
if (!l_bit) { |
| 1784 |
tmp = (int64_t)(int32_t)tmp; |
| 1785 |
tmp2 = (int64_t)(int32_t)tmp2; |
| 1786 |
} |
| 1787 |
if ((int64_t)tmp < (int64_t)tmp2) |
| 1788 |
c = 8; |
| 1789 |
else if ((int64_t)tmp > (int64_t)tmp2) |
| 1790 |
c = 4; |
| 1791 |
else |
| 1792 |
c = 2; |
| 1793 |
} else { |
| 1794 |
if (!l_bit) { |
| 1795 |
tmp &= 0xffffffff; |
| 1796 |
tmp2 &= 0xffffffff; |
| 1797 |
} |
| 1798 |
if ((uint64_t)tmp < (uint64_t)tmp2) |
| 1799 |
c = 8; |
| 1800 |
else if ((uint64_t)tmp > (uint64_t)tmp2) |
| 1801 |
c = 4; |
| 1802 |
else |
| 1803 |
c = 2; |
| 1804 |
} |
| 1805 |
|
| 1806 |
/* SO bit, copied from XER: */ |
| 1807 |
c |= ((cpu->cd.ppc.xer >> 31) & 1); |
| 1808 |
|
| 1809 |
cpu->cd.ppc.cr &= ~(0xf << (28 - 4*bf)); |
| 1810 |
cpu->cd.ppc.cr |= (c << (28 - 4*bf)); |
| 1811 |
break; |
| 1812 |
|
| 1813 |
case PPC_31_MFCR: |
| 1814 |
rt = (iword >> 21) & 31; |
| 1815 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.cr; |
| 1816 |
break; |
| 1817 |
|
| 1818 |
case PPC_31_DCBST: |
| 1819 |
case PPC_31_ICBI: |
| 1820 |
ra = (iword >> 16) & 31; |
| 1821 |
rb = (iword >> 11) & 31; |
| 1822 |
switch (xo) { |
| 1823 |
case PPC_31_DCBST: mnem = "dcbst"; break; |
| 1824 |
case PPC_31_ICBI: mnem = "icbi"; break; |
| 1825 |
} |
| 1826 |
/* debug("[ %s r%i,r%i: TODO ]\n", mnem, ra, rb); */ |
| 1827 |
break; |
| 1828 |
|
| 1829 |
case PPC_31_MFMSR: |
| 1830 |
rt = (iword >> 21) & 31; |
| 1831 |
/* TODO: check pr */ |
| 1832 |
reg_access_msr(cpu, &cpu->cd.ppc.gpr[rt], 0); |
| 1833 |
break; |
| 1834 |
|
| 1835 |
case PPC_31_MTCRF: |
| 1836 |
rs = (iword >> 21) & 31; |
| 1837 |
mb = (iword >> 12) & 255; /* actually fxm, not mb */ |
| 1838 |
tmp = 0; |
| 1839 |
for (i=0; i<8; i++, mb <<= 1, tmp <<= 4) |
| 1840 |
if (mb & 128) |
| 1841 |
tmp |= 0xf; |
| 1842 |
cpu->cd.ppc.cr &= ~tmp; |
| 1843 |
cpu->cd.ppc.cr |= (cpu->cd.ppc.gpr[rs] & tmp); |
| 1844 |
break; |
| 1845 |
|
| 1846 |
case PPC_31_MTMSR: |
| 1847 |
rs = (iword >> 21) & 31; |
| 1848 |
l_bit = (iword >> 16) & 1; |
| 1849 |
/* TODO: the l_bit */ |
| 1850 |
reg_access_msr(cpu, &cpu->cd.ppc.gpr[rs], 1); |
| 1851 |
break; |
| 1852 |
|
| 1853 |
case PPC_31_LBZX: |
| 1854 |
case PPC_31_LBZUX: |
| 1855 |
case PPC_31_LHZX: |
| 1856 |
case PPC_31_LHZUX: |
| 1857 |
case PPC_31_LWZX: |
| 1858 |
case PPC_31_LWZUX: |
| 1859 |
case PPC_31_STBX: |
| 1860 |
case PPC_31_STBUX: |
| 1861 |
case PPC_31_STHX: |
| 1862 |
case PPC_31_STHUX: |
| 1863 |
case PPC_31_STWX: |
| 1864 |
case PPC_31_STWUX: |
| 1865 |
rs = (iword >> 21) & 31; |
| 1866 |
ra = (iword >> 16) & 31; |
| 1867 |
rb = (iword >> 11) & 31; |
| 1868 |
update = 0; |
| 1869 |
switch (xo) { |
| 1870 |
case PPC_31_LBZUX: |
| 1871 |
case PPC_31_LHZUX: |
| 1872 |
case PPC_31_LWZUX: |
| 1873 |
case PPC_31_STBUX: |
| 1874 |
case PPC_31_STHUX: |
| 1875 |
case PPC_31_STWUX: |
| 1876 |
update = 1; |
| 1877 |
} |
| 1878 |
if (ra == 0) |
| 1879 |
addr = 0; |
| 1880 |
else |
| 1881 |
addr = cpu->cd.ppc.gpr[ra]; |
| 1882 |
addr += cpu->cd.ppc.gpr[rb]; |
| 1883 |
load = 0; |
| 1884 |
switch (xo) { |
| 1885 |
case PPC_31_LBZX: |
| 1886 |
case PPC_31_LBZUX: |
| 1887 |
case PPC_31_LHZX: |
| 1888 |
case PPC_31_LHZUX: |
| 1889 |
case PPC_31_LWZX: |
| 1890 |
case PPC_31_LWZUX: |
| 1891 |
load = 1; |
| 1892 |
} |
| 1893 |
|
| 1894 |
if (cpu->machine->instruction_trace) { |
| 1895 |
if (cpu->cd.ppc.bits == 32) |
| 1896 |
debug("\t[0x%08llx", (long long)addr); |
| 1897 |
else |
| 1898 |
debug("\t[0x%016llx", (long long)addr); |
| 1899 |
} |
| 1900 |
|
| 1901 |
tmp_data_len = 4; |
| 1902 |
switch (xo) { |
| 1903 |
case PPC_31_LBZX: |
| 1904 |
case PPC_31_LBZUX: |
| 1905 |
case PPC_31_STBX: |
| 1906 |
case PPC_31_STBUX: |
| 1907 |
tmp_data_len = 1; |
| 1908 |
break; |
| 1909 |
case PPC_31_LHZX: |
| 1910 |
case PPC_31_LHZUX: |
| 1911 |
case PPC_31_STHX: |
| 1912 |
case PPC_31_STHUX: |
| 1913 |
tmp_data_len = 2; |
| 1914 |
break; |
| 1915 |
} |
| 1916 |
|
| 1917 |
tmp = 0; |
| 1918 |
|
| 1919 |
if (load) { |
| 1920 |
r = cpu->memory_rw(cpu, cpu->mem, addr, |
| 1921 |
tmp_data, tmp_data_len, MEM_READ, |
| 1922 |
CACHE_DATA); |
| 1923 |
if (r == MEMORY_ACCESS_OK) { |
| 1924 |
if (cpu->byte_order == |
| 1925 |
EMUL_BIG_ENDIAN) { |
| 1926 |
for (i=0; i<tmp_data_len; i++) { |
| 1927 |
tmp <<= 8; |
| 1928 |
tmp += tmp_data[i]; |
| 1929 |
} |
| 1930 |
} else { |
| 1931 |
for (i=0; i<tmp_data_len; i++) { |
| 1932 |
tmp <<= 8; |
| 1933 |
tmp += tmp_data[ |
| 1934 |
tmp_data_len - 1 |
| 1935 |
- i]; |
| 1936 |
} |
| 1937 |
} |
| 1938 |
cpu->cd.ppc.gpr[rs] = tmp; |
| 1939 |
} |
| 1940 |
} else { |
| 1941 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 1942 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
| 1943 |
for (i=0; i<tmp_data_len; i++) |
| 1944 |
tmp_data[tmp_data_len-1-i] = |
| 1945 |
tmp >> (8*i); |
| 1946 |
} else { |
| 1947 |
for (i=0; i<tmp_data_len; i++) |
| 1948 |
tmp_data[i] = tmp >> (8*i); |
| 1949 |
} |
| 1950 |
|
| 1951 |
r = cpu->memory_rw(cpu, cpu->mem, addr, |
| 1952 |
tmp_data, tmp_data_len, MEM_WRITE, |
| 1953 |
CACHE_DATA); |
| 1954 |
} |
| 1955 |
|
| 1956 |
if (cpu->machine->instruction_trace) { |
| 1957 |
if (r == MEMORY_ACCESS_OK) { |
| 1958 |
switch (tmp_data_len) { |
| 1959 |
case 1: debug(", data = 0x%02x]\n", |
| 1960 |
(int)tmp); |
| 1961 |
break; |
| 1962 |
case 2: debug(", data = 0x%04x]\n", |
| 1963 |
(int)tmp); |
| 1964 |
break; |
| 1965 |
case 4: debug(", data = 0x%08x]\n", |
| 1966 |
(int)tmp); |
| 1967 |
break; |
| 1968 |
default:debug(", data = 0x%016llx]\n", |
| 1969 |
(long long)tmp); |
| 1970 |
} |
| 1971 |
} else |
| 1972 |
debug(", FAILED]\n"); |
| 1973 |
} |
| 1974 |
|
| 1975 |
if (r != MEMORY_ACCESS_OK) { |
| 1976 |
/* TODO: exception? */ |
| 1977 |
return 0; |
| 1978 |
} |
| 1979 |
|
| 1980 |
if (update && ra != 0) |
| 1981 |
cpu->cd.ppc.gpr[ra] = addr; |
| 1982 |
break; |
| 1983 |
|
| 1984 |
case PPC_31_NEG: |
| 1985 |
case PPC_31_NEGO: |
| 1986 |
rt = (iword >> 21) & 31; |
| 1987 |
ra = (iword >> 16) & 31; |
| 1988 |
oe_bit = (iword >> 10) & 1; |
| 1989 |
rc = iword & 1; |
| 1990 |
if (oe_bit) { |
| 1991 |
fatal("[ neg: PPC oe not yet implemeted ]\n"); |
| 1992 |
cpu->running = 0; |
| 1993 |
return 0; |
| 1994 |
} |
| 1995 |
cpu->cd.ppc.gpr[rt] = ~cpu->cd.ppc.gpr[ra] + 1; |
| 1996 |
if (rc) |
| 1997 |
update_cr0(cpu, cpu->cd.ppc.gpr[rt]); |
| 1998 |
break; |
| 1999 |
|
| 2000 |
case PPC_31_ADDZE: |
| 2001 |
case PPC_31_ADDZEO: |
| 2002 |
rt = (iword >> 21) & 31; |
| 2003 |
ra = (iword >> 16) & 31; |
| 2004 |
oe_bit = (iword >> 10) & 1; |
| 2005 |
rc = iword & 1; |
| 2006 |
if (oe_bit) { |
| 2007 |
fatal("[ addz: PPC oe not yet implemeted ]\n"); |
| 2008 |
cpu->running = 0; |
| 2009 |
return 0; |
| 2010 |
} |
| 2011 |
old_ca = cpu->cd.ppc.xer & PPC_XER_CA; |
| 2012 |
cpu->cd.ppc.xer &= PPC_XER_CA; |
| 2013 |
if (cpu->cd.ppc.bits == 32) { |
| 2014 |
tmp = (uint32_t)cpu->cd.ppc.gpr[ra]; |
| 2015 |
tmp2 = tmp; |
| 2016 |
/* printf("addze: tmp2 = %016llx\n", |
| 2017 |
(long long)tmp2); */ |
| 2018 |
if (old_ca) |
| 2019 |
tmp ++; |
| 2020 |
/* printf("addze: tmp = %016llx\n\n", |
| 2021 |
(long long)tmp); */ |
| 2022 |
/* TODO: is this CA correct? */ |
| 2023 |
if ((tmp >> 32) != (tmp2 >> 32)) |
| 2024 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 2025 |
/* High 32 bits are probably undefined |
| 2026 |
in 32-bit mode (I hope) */ |
| 2027 |
cpu->cd.ppc.gpr[rt] = tmp; |
| 2028 |
} else { |
| 2029 |
fatal("ADDZE 64-bit, TODO\n"); |
| 2030 |
} |
| 2031 |
if (rc) |
| 2032 |
update_cr0(cpu, cpu->cd.ppc.gpr[rt]); |
| 2033 |
break; |
| 2034 |
|
| 2035 |
case PPC_31_MTSR: |
| 2036 |
/* Move to segment register (?) */ |
| 2037 |
/* TODO */ |
| 2038 |
break; |
| 2039 |
|
| 2040 |
case PPC_31_MFSRIN: |
| 2041 |
case PPC_31_MTSRIN: |
| 2042 |
/* mfsrin: Move to segment register indirect (?) */ |
| 2043 |
/* mtsrin: Move to segment register indirect (?) */ |
| 2044 |
rt = (iword >> 21) & 31; |
| 2045 |
rb = (iword >> 11) & 31; |
| 2046 |
|
| 2047 |
/* TODO */ |
| 2048 |
|
| 2049 |
if (xo == PPC_31_MFSRIN) |
| 2050 |
cpu->cd.ppc.gpr[rt] = 0; |
| 2051 |
break; |
| 2052 |
|
| 2053 |
case PPC_31_ADDC: |
| 2054 |
case PPC_31_ADDCO: |
| 2055 |
case PPC_31_ADDE: |
| 2056 |
case PPC_31_ADDEO: |
| 2057 |
case PPC_31_ADD: |
| 2058 |
case PPC_31_ADDO: |
| 2059 |
case PPC_31_MULHW: |
| 2060 |
case PPC_31_MULHWU: |
| 2061 |
case PPC_31_MULLW: |
| 2062 |
case PPC_31_MULLWO: |
| 2063 |
case PPC_31_SUBFE: |
| 2064 |
case PPC_31_SUBFEO: |
| 2065 |
case PPC_31_SUBFZE: |
| 2066 |
case PPC_31_SUBFZEO: |
| 2067 |
case PPC_31_SUBFC: |
| 2068 |
case PPC_31_SUBFCO: |
| 2069 |
case PPC_31_SUBF: |
| 2070 |
case PPC_31_SUBFO: |
| 2071 |
rt = (iword >> 21) & 31; |
| 2072 |
ra = (iword >> 16) & 31; |
| 2073 |
rb = (iword >> 11) & 31; |
| 2074 |
oe_bit = (iword >> 10) & 1; |
| 2075 |
rc = iword & 1; |
| 2076 |
if (oe_bit) { |
| 2077 |
fatal("[ add: PPC oe not yet implemeted ]\n"); |
| 2078 |
cpu->running = 0; |
| 2079 |
return 0; |
| 2080 |
} |
| 2081 |
switch (xo) { |
| 2082 |
case PPC_31_ADD: |
| 2083 |
case PPC_31_ADDO: |
| 2084 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.gpr[ra] + |
| 2085 |
cpu->cd.ppc.gpr[rb]; |
| 2086 |
break; |
| 2087 |
case PPC_31_ADDC: |
| 2088 |
case PPC_31_ADDCO: |
| 2089 |
case PPC_31_ADDE: |
| 2090 |
case PPC_31_ADDEO: |
| 2091 |
old_ca = cpu->cd.ppc.xer & PPC_XER_CA; |
| 2092 |
cpu->cd.ppc.xer &= PPC_XER_CA; |
| 2093 |
if (cpu->cd.ppc.bits == 32) { |
| 2094 |
tmp = (uint32_t)cpu->cd.ppc.gpr[ra]; |
| 2095 |
tmp2 = tmp; |
| 2096 |
/* printf("adde: tmp2 = %016llx\n", |
| 2097 |
(long long)tmp2); */ |
| 2098 |
tmp += (uint32_t)cpu->cd.ppc.gpr[rb]; |
| 2099 |
if ((xo == PPC_31_ADDE || |
| 2100 |
xo == PPC_31_ADDEO) && old_ca) |
| 2101 |
tmp ++; |
| 2102 |
/* printf("adde: tmp = %016llx\n\n", |
| 2103 |
(long long)tmp); */ |
| 2104 |
/* TODO: is this CA correct? */ |
| 2105 |
if ((tmp >> 32) != (tmp2 >> 32)) |
| 2106 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 2107 |
/* High 32 bits are probably undefined |
| 2108 |
in 32-bit mode (I hope) */ |
| 2109 |
cpu->cd.ppc.gpr[rt] = tmp; |
| 2110 |
} else { |
| 2111 |
fatal("ADDE 64-bit, TODO\n"); |
| 2112 |
} |
| 2113 |
break; |
| 2114 |
case PPC_31_MULHW: |
| 2115 |
cpu->cd.ppc.gpr[rt] = (int64_t) ( |
| 2116 |
(int64_t)(int32_t)cpu->cd.ppc.gpr[ra] * |
| 2117 |
(int64_t)(int32_t)cpu->cd.ppc.gpr[rb]); |
| 2118 |
cpu->cd.ppc.gpr[rt] >>= 32; |
| 2119 |
break; |
| 2120 |
case PPC_31_MULHWU: |
| 2121 |
cpu->cd.ppc.gpr[rt] = (uint64_t) ( |
| 2122 |
(uint64_t)(uint32_t)cpu->cd.ppc.gpr[ra] * |
| 2123 |
(uint64_t)(uint32_t)cpu->cd.ppc.gpr[rb]); |
| 2124 |
cpu->cd.ppc.gpr[rt] >>= 32; |
| 2125 |
break; |
| 2126 |
case PPC_31_MULLW: |
| 2127 |
case PPC_31_MULLWO: |
| 2128 |
cpu->cd.ppc.gpr[rt] = (int64_t) ( |
| 2129 |
(int32_t)cpu->cd.ppc.gpr[ra] * |
| 2130 |
(int32_t)cpu->cd.ppc.gpr[rb]); |
| 2131 |
break; |
| 2132 |
case PPC_31_SUBF: |
| 2133 |
case PPC_31_SUBFO: |
| 2134 |
cpu->cd.ppc.gpr[rt] = ~cpu->cd.ppc.gpr[ra] + |
| 2135 |
cpu->cd.ppc.gpr[rb] + 1; |
| 2136 |
break; |
| 2137 |
case PPC_31_SUBFC: |
| 2138 |
case PPC_31_SUBFCO: |
| 2139 |
case PPC_31_SUBFE: |
| 2140 |
case PPC_31_SUBFEO: |
| 2141 |
case PPC_31_SUBFZE: |
| 2142 |
case PPC_31_SUBFZEO: |
| 2143 |
old_ca = cpu->cd.ppc.xer & PPC_XER_CA; |
| 2144 |
if (xo == PPC_31_SUBFC || xo == PPC_31_SUBFCO) |
| 2145 |
old_ca = 1; |
| 2146 |
cpu->cd.ppc.xer &= PPC_XER_CA; |
| 2147 |
if (cpu->cd.ppc.bits == 32) { |
| 2148 |
tmp = (~cpu->cd.ppc.gpr[ra]) |
| 2149 |
& 0xffffffff; |
| 2150 |
tmp2 = tmp; |
| 2151 |
if (xo != PPC_31_SUBFZE && |
| 2152 |
xo != PPC_31_SUBFZEO) |
| 2153 |
tmp += (cpu->cd.ppc.gpr[rb] & |
| 2154 |
0xffffffff); |
| 2155 |
if (old_ca) |
| 2156 |
tmp ++; |
| 2157 |
/* printf("subfe: tmp2 = %016llx\n", |
| 2158 |
(long long)tmp2); |
| 2159 |
printf("subfe: tmp = %016llx\n\n", |
| 2160 |
(long long)tmp); */ |
| 2161 |
/* TODO: is this CA correct? */ |
| 2162 |
if ((tmp >> 32) != (tmp2 >> 32)) |
| 2163 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 2164 |
/* High 32 bits are probably undefined |
| 2165 |
in 32-bit mode (I hope) */ |
| 2166 |
cpu->cd.ppc.gpr[rt] = tmp; |
| 2167 |
} else { |
| 2168 |
fatal("SUBFE 64-bit, TODO\n"); |
| 2169 |
} |
| 2170 |
break; |
| 2171 |
} |
| 2172 |
if (rc) |
| 2173 |
update_cr0(cpu, cpu->cd.ppc.gpr[rt]); |
| 2174 |
break; |
| 2175 |
|
| 2176 |
case PPC_31_MFSPR: |
| 2177 |
case PPC_31_MFTB: |
| 2178 |
rt = (iword >> 21) & 31; |
| 2179 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 2180 |
switch (spr) { |
| 2181 |
case 1: cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.xer; |
| 2182 |
break; |
| 2183 |
case 8: cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.lr; |
| 2184 |
break; |
| 2185 |
case 9: cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.ctr; |
| 2186 |
break; |
| 2187 |
case 22:/* TODO: check pr */ |
| 2188 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.dec; |
| 2189 |
break; |
| 2190 |
case 259: /* NOTE: no pr check */ |
| 2191 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.sprg3; |
| 2192 |
break; |
| 2193 |
case 268: /* MFTB, NOTE: no pr check */ |
| 2194 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.tbl; |
| 2195 |
break; |
| 2196 |
case 269: /* MFTBU, NOTE: no pr check */ |
| 2197 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.tbu; |
| 2198 |
break; |
| 2199 |
case 272: |
| 2200 |
/* TODO: check pr */ |
| 2201 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.sprg0; |
| 2202 |
break; |
| 2203 |
case 273: |
| 2204 |
/* TODO: check pr */ |
| 2205 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.sprg1; |
| 2206 |
break; |
| 2207 |
case 274: |
| 2208 |
/* TODO: check pr */ |
| 2209 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.sprg2; |
| 2210 |
break; |
| 2211 |
case 275: |
| 2212 |
/* TODO: check pr */ |
| 2213 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.sprg3; |
| 2214 |
break; |
| 2215 |
case 287: |
| 2216 |
/* TODO: check pr */ |
| 2217 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.pvr; |
| 2218 |
break; |
| 2219 |
case 310:/* TODO: check pr */ |
| 2220 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.hdec; |
| 2221 |
break; |
| 2222 |
case 1023: |
| 2223 |
/* TODO: check pr */ |
| 2224 |
cpu->cd.ppc.gpr[rt] = cpu->cd.ppc.pir; |
| 2225 |
break; |
| 2226 |
default: |
| 2227 |
fatal("[ unimplemented PPC spr 0x%04x, " |
| 2228 |
"pc = 0x%016llx ]\n", |
| 2229 |
spr, (long long) (cpu->cd.ppc.pc_last)); |
| 2230 |
/* cpu->running = 0; |
| 2231 |
return 0; */ |
| 2232 |
break; |
| 2233 |
} |
| 2234 |
|
| 2235 |
/* TODO: is this correct? */ |
| 2236 |
if (cpu->cd.ppc.bits == 32) |
| 2237 |
cpu->cd.ppc.gpr[rt] &= 0xffffffff; |
| 2238 |
break; |
| 2239 |
|
| 2240 |
case PPC_31_CNTLZW: |
| 2241 |
rs = (iword >> 21) & 31; |
| 2242 |
ra = (iword >> 16) & 31; |
| 2243 |
rc = iword & 1; |
| 2244 |
cpu->cd.ppc.gpr[ra] = 0; |
| 2245 |
for (i=0; i<32; i++) { |
| 2246 |
if (cpu->cd.ppc.gpr[rs] & |
| 2247 |
((uint64_t)1 << (31-i))) |
| 2248 |
break; |
| 2249 |
cpu->cd.ppc.gpr[ra] ++; |
| 2250 |
} |
| 2251 |
if (rc) |
| 2252 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 2253 |
break; |
| 2254 |
|
| 2255 |
case PPC_31_SLW: |
| 2256 |
case PPC_31_SRAW: |
| 2257 |
case PPC_31_SRW: |
| 2258 |
case PPC_31_AND: |
| 2259 |
case PPC_31_ANDC: |
| 2260 |
case PPC_31_NOR: |
| 2261 |
case PPC_31_OR: |
| 2262 |
case PPC_31_ORC: |
| 2263 |
case PPC_31_XOR: |
| 2264 |
case PPC_31_NAND: |
| 2265 |
rs = (iword >> 21) & 31; |
| 2266 |
ra = (iword >> 16) & 31; |
| 2267 |
rb = (iword >> 11) & 31; |
| 2268 |
rc = iword & 1; |
| 2269 |
switch (xo) { |
| 2270 |
case PPC_31_SLW: |
| 2271 |
sh = cpu->cd.ppc.gpr[rb] & 0x3f; |
| 2272 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs]; |
| 2273 |
while (sh-- > 0) |
| 2274 |
cpu->cd.ppc.gpr[ra] <<= 1; |
| 2275 |
cpu->cd.ppc.gpr[ra] &= 0xffffffff; |
| 2276 |
break; |
| 2277 |
case PPC_31_SRAW: |
| 2278 |
tmp = cpu->cd.ppc.gpr[rs] & 0xffffffff; |
| 2279 |
cpu->cd.ppc.xer &= ~PPC_XER_CA; |
| 2280 |
i = 0; |
| 2281 |
sh = cpu->cd.ppc.gpr[rb] & 0x3f; |
| 2282 |
if (tmp & 0x80000000) |
| 2283 |
i = 1; |
| 2284 |
while (sh-- > 0) { |
| 2285 |
if (tmp & 1) |
| 2286 |
i++; |
| 2287 |
tmp >>= 1; |
| 2288 |
if (tmp & 0x40000000) |
| 2289 |
tmp |= 0x80000000; |
| 2290 |
} |
| 2291 |
cpu->cd.ppc.gpr[ra] = (int64_t)(int32_t)tmp; |
| 2292 |
/* Set the CA bit if rs contained a negative |
| 2293 |
number to begin with, and any 1-bits were |
| 2294 |
shifted out: */ |
| 2295 |
if (i > 1) |
| 2296 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 2297 |
break; |
| 2298 |
case PPC_31_SRW: |
| 2299 |
sh = cpu->cd.ppc.gpr[rb] & 0x3f; |
| 2300 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] |
| 2301 |
& 0xffffffff; |
| 2302 |
while (sh-- > 0) |
| 2303 |
cpu->cd.ppc.gpr[ra] >>= 1; |
| 2304 |
break; |
| 2305 |
case PPC_31_AND: |
| 2306 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] & |
| 2307 |
cpu->cd.ppc.gpr[rb]; |
| 2308 |
break; |
| 2309 |
case PPC_31_ANDC: |
| 2310 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] & |
| 2311 |
(~cpu->cd.ppc.gpr[rb]); |
| 2312 |
break; |
| 2313 |
case PPC_31_NOR: |
| 2314 |
cpu->cd.ppc.gpr[ra] = ~(cpu->cd.ppc.gpr[rs] | |
| 2315 |
cpu->cd.ppc.gpr[rb]); |
| 2316 |
break; |
| 2317 |
case PPC_31_OR: |
| 2318 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] | |
| 2319 |
cpu->cd.ppc.gpr[rb]; |
| 2320 |
break; |
| 2321 |
case PPC_31_ORC: |
| 2322 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] | |
| 2323 |
(~cpu->cd.ppc.gpr[rb]); |
| 2324 |
break; |
| 2325 |
case PPC_31_XOR: |
| 2326 |
cpu->cd.ppc.gpr[ra] = cpu->cd.ppc.gpr[rs] ^ |
| 2327 |
cpu->cd.ppc.gpr[rb]; |
| 2328 |
break; |
| 2329 |
case PPC_31_NAND: |
| 2330 |
cpu->cd.ppc.gpr[ra] = ~(cpu->cd.ppc.gpr[rs] |
| 2331 |
& cpu->cd.ppc.gpr[rb]); |
| 2332 |
break; |
| 2333 |
} |
| 2334 |
if (rc) |
| 2335 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 2336 |
break; |
| 2337 |
|
| 2338 |
case PPC_31_TLBIE: |
| 2339 |
rb = (iword >> 11) & 31; |
| 2340 |
/* TODO */ |
| 2341 |
break; |
| 2342 |
|
| 2343 |
case PPC_31_TLBSYNC: |
| 2344 |
/* Only on 603 and 604 (?) */ |
| 2345 |
|
| 2346 |
/* TODO */ |
| 2347 |
break; |
| 2348 |
|
| 2349 |
case PPC_31_DCCCI: |
| 2350 |
case PPC_31_ICCCI: |
| 2351 |
/* Supervisor IBM 4xx Data Cache Congruence Class |
| 2352 |
Invalidate, see www.xilinx.com/publications/ |
| 2353 |
xcellonline/partners/xc_pdf/xc_ibm_pwrpc42.pdf |
| 2354 |
or similar */ |
| 2355 |
/* ICCCI is probably Instruction... blah blah */ |
| 2356 |
/* TODO */ |
| 2357 |
break; |
| 2358 |
|
| 2359 |
case PPC_31_DIVWU: |
| 2360 |
case PPC_31_DIVWUO: |
| 2361 |
case PPC_31_DIVW: |
| 2362 |
case PPC_31_DIVWO: |
| 2363 |
rt = (iword >> 21) & 31; |
| 2364 |
ra = (iword >> 16) & 31; |
| 2365 |
rb = (iword >> 11) & 31; |
| 2366 |
oe_bit = (iword >> 10) & 1; |
| 2367 |
rc = iword & 1; |
| 2368 |
switch (xo) { |
| 2369 |
case PPC_31_DIVWU: |
| 2370 |
case PPC_31_DIVWUO: |
| 2371 |
tmp = cpu->cd.ppc.gpr[ra] & 0xffffffff; |
| 2372 |
tmp2 = cpu->cd.ppc.gpr[rb] & 0xffffffff; |
| 2373 |
if (tmp2 == 0) { |
| 2374 |
/* Undefined: */ |
| 2375 |
tmp = 0; |
| 2376 |
} else { |
| 2377 |
tmp = tmp / tmp2; |
| 2378 |
} |
| 2379 |
cpu->cd.ppc.gpr[rt] = (int64_t)(int32_t)tmp; |
| 2380 |
break; |
| 2381 |
case PPC_31_DIVW: |
| 2382 |
case PPC_31_DIVWO: |
| 2383 |
tmp = (int64_t)(int32_t)cpu->cd.ppc.gpr[ra]; |
| 2384 |
tmp2 = (int64_t)(int32_t)cpu->cd.ppc.gpr[rb]; |
| 2385 |
if (tmp2 == 0) { |
| 2386 |
/* Undefined: */ |
| 2387 |
tmp = 0; |
| 2388 |
} else { |
| 2389 |
tmp = (int64_t)tmp / (int64_t)tmp2; |
| 2390 |
} |
| 2391 |
cpu->cd.ppc.gpr[rt] = (int64_t)(int32_t)tmp; |
| 2392 |
break; |
| 2393 |
} |
| 2394 |
if (rc) |
| 2395 |
update_cr0(cpu, cpu->cd.ppc.gpr[rt]); |
| 2396 |
if (oe_bit) { |
| 2397 |
fatal("[ divwu: PPC oe not yet implemeted ]\n"); |
| 2398 |
cpu->running = 0; |
| 2399 |
return 0; |
| 2400 |
} |
| 2401 |
break; |
| 2402 |
|
| 2403 |
case PPC_31_MTSPR: |
| 2404 |
rs = (iword >> 21) & 31; |
| 2405 |
spr = ((iword >> 6) & 0x3e0) + ((iword >> 16) & 31); |
| 2406 |
switch (spr) { |
| 2407 |
case 1: cpu->cd.ppc.xer = cpu->cd.ppc.gpr[rs]; |
| 2408 |
break; |
| 2409 |
case 8: cpu->cd.ppc.lr = cpu->cd.ppc.gpr[rs]; |
| 2410 |
break; |
| 2411 |
case 9: cpu->cd.ppc.ctr = cpu->cd.ppc.gpr[rs]; |
| 2412 |
break; |
| 2413 |
case 22: /* TODO: check pr */ |
| 2414 |
cpu->cd.ppc.dec = cpu->cd.ppc.gpr[rs]; |
| 2415 |
break; |
| 2416 |
case 272: |
| 2417 |
/* TODO: check hypv */ |
| 2418 |
cpu->cd.ppc.sprg0 = cpu->cd.ppc.gpr[rs]; |
| 2419 |
break; |
| 2420 |
case 273: |
| 2421 |
/* TODO: check pr */ |
| 2422 |
cpu->cd.ppc.sprg1 = cpu->cd.ppc.gpr[rs]; |
| 2423 |
break; |
| 2424 |
case 274: |
| 2425 |
/* TODO: check pr */ |
| 2426 |
cpu->cd.ppc.sprg2 = cpu->cd.ppc.gpr[rs]; |
| 2427 |
break; |
| 2428 |
case 275: |
| 2429 |
/* TODO: check pr */ |
| 2430 |
cpu->cd.ppc.sprg3 = cpu->cd.ppc.gpr[rs]; |
| 2431 |
break; |
| 2432 |
case 284: |
| 2433 |
/* TODO: check pr */ |
| 2434 |
cpu->cd.ppc.tbl = cpu->cd.ppc.gpr[rs]; |
| 2435 |
break; |
| 2436 |
case 285: |
| 2437 |
/* TODO: check pr */ |
| 2438 |
cpu->cd.ppc.tbu = cpu->cd.ppc.gpr[rs]; |
| 2439 |
break; |
| 2440 |
case 287: |
| 2441 |
fatal("[ PPC: attempt to write to PVR ]\n"); |
| 2442 |
break; |
| 2443 |
case 310: /* TODO: check hypv */ |
| 2444 |
cpu->cd.ppc.hdec = cpu->cd.ppc.gpr[rs]; |
| 2445 |
break; |
| 2446 |
case 1023: |
| 2447 |
/* TODO: check pr */ |
| 2448 |
cpu->cd.ppc.pir = cpu->cd.ppc.gpr[rs]; |
| 2449 |
break; |
| 2450 |
default: |
| 2451 |
fatal("[ unimplemented PPC spr 0x%04x, " |
| 2452 |
"pc = 0x%016llx ]\n", |
| 2453 |
spr, (long long) (cpu->cd.ppc.pc_last)); |
| 2454 |
/* cpu->running = 0; |
| 2455 |
return 0; */ |
| 2456 |
break; |
| 2457 |
} |
| 2458 |
break; |
| 2459 |
|
| 2460 |
case PPC_31_SYNC: |
| 2461 |
/* TODO: actually sync */ |
| 2462 |
break; |
| 2463 |
|
| 2464 |
case PPC_31_STSWI: |
| 2465 |
rs = (iword >> 21) & 31; |
| 2466 |
ra = (iword >> 16) & 31; |
| 2467 |
nb = (iword >> 11) & 31; |
| 2468 |
if (nb == 0) |
| 2469 |
nb = 32; |
| 2470 |
if (ra == 0) |
| 2471 |
addr = 0; |
| 2472 |
else |
| 2473 |
addr = cpu->cd.ppc.gpr[ra]; |
| 2474 |
|
| 2475 |
if (cpu->machine->instruction_trace) { |
| 2476 |
if (cpu->cd.ppc.bits == 32) |
| 2477 |
debug("\t[0x%08llx", (long long)addr); |
| 2478 |
else |
| 2479 |
debug("\t[0x%016llx", (long long)addr); |
| 2480 |
} |
| 2481 |
|
| 2482 |
i = 24; |
| 2483 |
r = 0; /* There can be multiple errors */ |
| 2484 |
while (nb > 0) { |
| 2485 |
tmp_data[0] = cpu->cd.ppc.gpr[rs] >> i; |
| 2486 |
if (cpu->memory_rw(cpu, cpu->mem, addr, |
| 2487 |
tmp_data, 1, MEM_WRITE, CACHE_DATA) |
| 2488 |
!= MEMORY_ACCESS_OK) |
| 2489 |
r++; |
| 2490 |
nb--; addr++; i-=8; |
| 2491 |
if (i < 0) { |
| 2492 |
i = 24; |
| 2493 |
rs = (rs + 1) % 32; |
| 2494 |
} |
| 2495 |
} |
| 2496 |
|
| 2497 |
if (cpu->machine->instruction_trace) { |
| 2498 |
if (r == 0) |
| 2499 |
debug(", ...]\n"); |
| 2500 |
else |
| 2501 |
debug(", FAILED]\n"); |
| 2502 |
} |
| 2503 |
|
| 2504 |
if (r > 0) { |
| 2505 |
/* TODO: exception */ |
| 2506 |
return 0; |
| 2507 |
} |
| 2508 |
break; |
| 2509 |
|
| 2510 |
case PPC_31_SRAWI: |
| 2511 |
rs = (iword >> 21) & 31; |
| 2512 |
ra = (iword >> 16) & 31; |
| 2513 |
sh = (iword >> 11) & 31; |
| 2514 |
rc = iword & 1; |
| 2515 |
tmp = cpu->cd.ppc.gpr[rs] & 0xffffffff; |
| 2516 |
cpu->cd.ppc.xer &= ~PPC_XER_CA; |
| 2517 |
i = 0; |
| 2518 |
if (tmp & 0x80000000) |
| 2519 |
i = 1; |
| 2520 |
while (sh-- > 0) { |
| 2521 |
if (tmp & 1) |
| 2522 |
i++; |
| 2523 |
tmp >>= 1; |
| 2524 |
if (tmp & 0x40000000) |
| 2525 |
tmp |= 0x80000000; |
| 2526 |
} |
| 2527 |
cpu->cd.ppc.gpr[ra] = (int64_t)(int32_t)tmp; |
| 2528 |
/* Set the CA bit if rs contained a negative |
| 2529 |
number to begin with, and any 1-bits were |
| 2530 |
shifted out: */ |
| 2531 |
if (i > 1) |
| 2532 |
cpu->cd.ppc.xer |= PPC_XER_CA; |
| 2533 |
if (rc) |
| 2534 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 2535 |
break; |
| 2536 |
|
| 2537 |
case PPC_31_EIEIO: |
| 2538 |
/* TODO: actually eieio */ |
| 2539 |
break; |
| 2540 |
|
| 2541 |
case PPC_31_EXTSB: |
| 2542 |
case PPC_31_EXTSH: |
| 2543 |
case PPC_31_EXTSW: |
| 2544 |
rs = (iword >> 21) & 31; |
| 2545 |
ra = (iword >> 16) & 31; |
| 2546 |
rc = iword & 1; |
| 2547 |
switch (xo) { |
| 2548 |
case PPC_31_EXTSB: |
| 2549 |
cpu->cd.ppc.gpr[ra] = (int64_t) |
| 2550 |
(int8_t)cpu->cd.ppc.gpr[rs]; |
| 2551 |
break; |
| 2552 |
case PPC_31_EXTSH: |
| 2553 |
cpu->cd.ppc.gpr[ra] = (int64_t) |
| 2554 |
(int16_t)cpu->cd.ppc.gpr[rs]; |
| 2555 |
break; |
| 2556 |
case PPC_31_EXTSW: |
| 2557 |
cpu->cd.ppc.gpr[ra] = (int64_t) |
| 2558 |
(int32_t)cpu->cd.ppc.gpr[rs]; |
| 2559 |
break; |
| 2560 |
} |
| 2561 |
if (rc) |
| 2562 |
update_cr0(cpu, cpu->cd.ppc.gpr[ra]); |
| 2563 |
break; |
| 2564 |
|
| 2565 |
default: |
| 2566 |
fatal("[ unimplemented PPC hi6_31, xo = 0x%04x, " |
| 2567 |
"pc = 0x%016llx ]\n", |
| 2568 |
xo, (long long) (cpu->cd.ppc.pc_last)); |
| 2569 |
cpu->running = 0; |
| 2570 |
return 0; |
| 2571 |
} |
| 2572 |
break; |
| 2573 |
|
| 2574 |
case PPC_HI6_LWZ: |
| 2575 |
case PPC_HI6_LWZU: |
| 2576 |
case PPC_HI6_LHZ: |
| 2577 |
case PPC_HI6_LHZU: |
| 2578 |
case PPC_HI6_LHA: |
| 2579 |
case PPC_HI6_LHAU: |
| 2580 |
case PPC_HI6_LBZ: |
| 2581 |
case PPC_HI6_LBZU: |
| 2582 |
case PPC_HI6_STW: |
| 2583 |
case PPC_HI6_STWU: |
| 2584 |
case PPC_HI6_STH: |
| 2585 |
case PPC_HI6_STHU: |
| 2586 |
case PPC_HI6_STB: |
| 2587 |
case PPC_HI6_STBU: |
| 2588 |
case PPC_HI6_LFD: |
| 2589 |
case PPC_HI6_STFD: |
| 2590 |
/* NOTE: Loads use rt, not rs, but are otherwise similar |
| 2591 |
to stores. This code uses rs for both. */ |
| 2592 |
rs = (iword >> 21) & 31; |
| 2593 |
ra = (iword >> 16) & 31; |
| 2594 |
imm = (int16_t)(iword & 0xffff); |
| 2595 |
|
| 2596 |
fpreg = 0; load = 1; update = 0; tmp_data_len = 4; |
| 2597 |
arithflag = 0; |
| 2598 |
|
| 2599 |
switch (hi6) { |
| 2600 |
case PPC_HI6_LWZU: |
| 2601 |
case PPC_HI6_LHZU: |
| 2602 |
case PPC_HI6_LHAU: |
| 2603 |
case PPC_HI6_LBZU: |
| 2604 |
case PPC_HI6_STBU: |
| 2605 |
case PPC_HI6_STHU: |
| 2606 |
case PPC_HI6_STWU: |
| 2607 |
update = 1; |
| 2608 |
} |
| 2609 |
|
| 2610 |
switch (hi6) { |
| 2611 |
case PPC_HI6_STW: |
| 2612 |
case PPC_HI6_STWU: |
| 2613 |
case PPC_HI6_STH: |
| 2614 |
case PPC_HI6_STHU: |
| 2615 |
case PPC_HI6_STB: |
| 2616 |
case PPC_HI6_STBU: |
| 2617 |
case PPC_HI6_STFD: |
| 2618 |
load = 0; |
| 2619 |
} |
| 2620 |
|
| 2621 |
switch (hi6) { |
| 2622 |
case PPC_HI6_LFD: |
| 2623 |
case PPC_HI6_STFD: |
| 2624 |
tmp_data_len = 8; |
| 2625 |
break; |
| 2626 |
case PPC_HI6_LBZ: |
| 2627 |
case PPC_HI6_LBZU: |
| 2628 |
case PPC_HI6_STB: |
| 2629 |
case PPC_HI6_STBU: |
| 2630 |
tmp_data_len = 1; |
| 2631 |
break; |
| 2632 |
case PPC_HI6_LHZ: |
| 2633 |
case PPC_HI6_LHZU: |
| 2634 |
case PPC_HI6_LHA: |
| 2635 |
case PPC_HI6_LHAU: |
| 2636 |
case PPC_HI6_STH: |
| 2637 |
case PPC_HI6_STHU: |
| 2638 |
tmp_data_len = 2; |
| 2639 |
break; |
| 2640 |
} |
| 2641 |
|
| 2642 |
switch (hi6) { |
| 2643 |
case PPC_HI6_LFD: |
| 2644 |
case PPC_HI6_STFD: |
| 2645 |
fpreg = 1; |
| 2646 |
} |
| 2647 |
|
| 2648 |
switch (hi6) { |
| 2649 |
case PPC_HI6_LHA: |
| 2650 |
case PPC_HI6_LHAU: |
| 2651 |
arithflag = 1; |
| 2652 |
} |
| 2653 |
|
| 2654 |
if (ra == 0) { |
| 2655 |
if (update) |
| 2656 |
fatal("[ PPC WARNING: invalid Update form ]\n"); |
| 2657 |
addr = 0; |
| 2658 |
} else |
| 2659 |
addr = cpu->cd.ppc.gpr[ra]; |
| 2660 |
|
| 2661 |
if (load && update && ra == rs) |
| 2662 |
fatal("[ PPC WARNING: invalid Update load form ]\n"); |
| 2663 |
|
| 2664 |
addr += imm; |
| 2665 |
|
| 2666 |
/* TODO: alignment check? */ |
| 2667 |
|
| 2668 |
if (cpu->machine->instruction_trace) { |
| 2669 |
if (cpu->cd.ppc.bits == 32) |
| 2670 |
debug("\t[0x%08llx", (long long)addr); |
| 2671 |
else |
| 2672 |
debug("\t[0x%016llx", (long long)addr); |
| 2673 |
} |
| 2674 |
|
| 2675 |
if (load) { |
| 2676 |
r = cpu->memory_rw(cpu, cpu->mem, addr, tmp_data, |
| 2677 |
tmp_data_len, MEM_READ, CACHE_DATA); |
| 2678 |
|
| 2679 |
if (r == MEMORY_ACCESS_OK) { |
| 2680 |
tmp = 0; |
| 2681 |
if (arithflag) { |
| 2682 |
if (cpu->byte_order == |
| 2683 |
EMUL_BIG_ENDIAN) { |
| 2684 |
if (tmp_data[0] & 0x80) |
| 2685 |
tmp --; |
| 2686 |
} else { |
| 2687 |
if (tmp_data[tmp_data_len-1] |
| 2688 |
& 0x80) |
| 2689 |
tmp --; |
| 2690 |
} |
| 2691 |
} |
| 2692 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
| 2693 |
for (i=0; i<tmp_data_len; i++) { |
| 2694 |
tmp <<= 8; |
| 2695 |
tmp += tmp_data[i]; |
| 2696 |
} |
| 2697 |
} else { |
| 2698 |
for (i=0; i<tmp_data_len; i++) { |
| 2699 |
tmp <<= 8; |
| 2700 |
tmp += tmp_data[ |
| 2701 |
tmp_data_len - 1 -i]; |
| 2702 |
} |
| 2703 |
} |
| 2704 |
|
| 2705 |
if (!fpreg) |
| 2706 |
cpu->cd.ppc.gpr[rs] = tmp; |
| 2707 |
else |
| 2708 |
cpu->cd.ppc.fpr[rs] = tmp; |
| 2709 |
} |
| 2710 |
} else { |
| 2711 |
if (!fpreg) |
| 2712 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 2713 |
else |
| 2714 |
tmp = cpu->cd.ppc.fpr[rs]; |
| 2715 |
|
| 2716 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
| 2717 |
for (i=0; i<tmp_data_len; i++) |
| 2718 |
tmp_data[tmp_data_len-1-i] = |
| 2719 |
tmp >> (8*i); |
| 2720 |
} else { |
| 2721 |
for (i=0; i<tmp_data_len; i++) |
| 2722 |
tmp_data[i] = tmp >> (8*i); |
| 2723 |
} |
| 2724 |
|
| 2725 |
r = cpu->memory_rw(cpu, cpu->mem, addr, tmp_data, |
| 2726 |
tmp_data_len, MEM_WRITE, CACHE_DATA); |
| 2727 |
} |
| 2728 |
|
| 2729 |
if (cpu->machine->instruction_trace) { |
| 2730 |
if (r == MEMORY_ACCESS_OK) { |
| 2731 |
switch (tmp_data_len) { |
| 2732 |
case 1: debug(", data = 0x%02x]\n", (int)tmp); |
| 2733 |
break; |
| 2734 |
case 2: debug(", data = 0x%04x]\n", (int)tmp); |
| 2735 |
break; |
| 2736 |
case 4: debug(", data = 0x%08x]\n", (int)tmp); |
| 2737 |
break; |
| 2738 |
default:debug(", data = 0x%016llx]\n", |
| 2739 |
(long long)tmp); |
| 2740 |
} |
| 2741 |
} else |
| 2742 |
debug(", FAILED]\n"); |
| 2743 |
} |
| 2744 |
|
| 2745 |
if (r != MEMORY_ACCESS_OK) { |
| 2746 |
/* TODO: exception? */ |
| 2747 |
return 0; |
| 2748 |
} |
| 2749 |
|
| 2750 |
if (update && ra != 0) |
| 2751 |
cpu->cd.ppc.gpr[ra] = addr; |
| 2752 |
break; |
| 2753 |
|
| 2754 |
case PPC_HI6_LMW: |
| 2755 |
case PPC_HI6_STMW: |
| 2756 |
/* NOTE: Loads use rt, not rs, but are otherwise similar |
| 2757 |
to stores. This code uses rs for both. */ |
| 2758 |
rs = (iword >> 21) & 31; |
| 2759 |
ra = (iword >> 16) & 31; |
| 2760 |
imm = (int16_t)(iword & 0xffff); |
| 2761 |
|
| 2762 |
load = 1; tmp_data_len = 4; |
| 2763 |
|
| 2764 |
switch (hi6) { |
| 2765 |
case PPC_HI6_STMW: |
| 2766 |
load = 0; |
| 2767 |
} |
| 2768 |
|
| 2769 |
if (ra == 0) { |
| 2770 |
addr = 0; |
| 2771 |
} else |
| 2772 |
addr = cpu->cd.ppc.gpr[ra]; |
| 2773 |
|
| 2774 |
if (load && rs == 0) |
| 2775 |
fatal("[ PPC WARNING: invalid LMW form ]\n"); |
| 2776 |
|
| 2777 |
addr += imm; |
| 2778 |
|
| 2779 |
/* TODO: alignment check? */ |
| 2780 |
|
| 2781 |
if (cpu->machine->instruction_trace) { |
| 2782 |
if (cpu->cd.ppc.bits == 32) |
| 2783 |
debug("\t[0x%08llx", (long long)addr); |
| 2784 |
else |
| 2785 |
debug("\t[0x%016llx", (long long)addr); |
| 2786 |
} |
| 2787 |
|
| 2788 |
/* There can be multiple errors! */ |
| 2789 |
r = 0; |
| 2790 |
|
| 2791 |
while (rs <= 31) { |
| 2792 |
if (load) { |
| 2793 |
if (cpu->memory_rw(cpu, cpu->mem, addr, |
| 2794 |
tmp_data, tmp_data_len, MEM_READ, |
| 2795 |
CACHE_DATA) != MEMORY_ACCESS_OK) |
| 2796 |
r++; |
| 2797 |
|
| 2798 |
if (r == 0) { |
| 2799 |
tmp = 0; |
| 2800 |
if (cpu->byte_order == |
| 2801 |
EMUL_BIG_ENDIAN) { |
| 2802 |
for (i=0; i<tmp_data_len; i++) { |
| 2803 |
tmp <<= 8; |
| 2804 |
tmp += tmp_data[i]; |
| 2805 |
} |
| 2806 |
} else { |
| 2807 |
for (i=0; i<tmp_data_len; i++) { |
| 2808 |
tmp <<= 8; |
| 2809 |
tmp += tmp_data[ |
| 2810 |
tmp_data_len - 1 |
| 2811 |
- i]; |
| 2812 |
} |
| 2813 |
} |
| 2814 |
|
| 2815 |
cpu->cd.ppc.gpr[rs] = tmp; |
| 2816 |
} |
| 2817 |
} else { |
| 2818 |
tmp = cpu->cd.ppc.gpr[rs]; |
| 2819 |
|
| 2820 |
if (cpu->byte_order == EMUL_BIG_ENDIAN) { |
| 2821 |
for (i=0; i<tmp_data_len; i++) |
| 2822 |
tmp_data[tmp_data_len-1-i] = |
| 2823 |
tmp >> (8*i); |
| 2824 |
} else { |
| 2825 |
for (i=0; i<tmp_data_len; i++) |
| 2826 |
tmp_data[i] = tmp >> (8*i); |
| 2827 |
} |
| 2828 |
|
| 2829 |
if (cpu->memory_rw(cpu, cpu->mem, addr, |
| 2830 |
tmp_data, tmp_data_len, MEM_WRITE, |
| 2831 |
CACHE_DATA) != MEMORY_ACCESS_OK) |
| 2832 |
r ++; |
| 2833 |
} |
| 2834 |
|
| 2835 |
/* TODO: Exception! */ |
| 2836 |
|
| 2837 |
/* Go to next register, multiword... */ |
| 2838 |
rs ++; |
| 2839 |
addr += tmp_data_len; |
| 2840 |
} |
| 2841 |
|
| 2842 |
if (cpu->machine->instruction_trace) { |
| 2843 |
if (r == 0) { |
| 2844 |
debug(", data = ...]\n"); |
| 2845 |
} else |
| 2846 |
debug(", FAILED]\n"); |
| 2847 |
} |
| 2848 |
|
| 2849 |
if (r > 0) |
| 2850 |
return 0; |
| 2851 |
break; |
| 2852 |
|
| 2853 |
default: |
| 2854 |
fatal("[ unimplemented PPC hi6 = 0x%02x, pc = 0x%016llx ]\n", |
| 2855 |
hi6, (long long) (cpu->cd.ppc.pc_last)); |
| 2856 |
cpu->running = 0; |
| 2857 |
return 0; |
| 2858 |
} |
| 2859 |
|
| 2860 |
return 1; |
| 2861 |
} |
| 2862 |
|
| 2863 |
|
| 2864 |
#define CPU_RUN ppc_cpu_run |
| 2865 |
#define CPU_RINSTR ppc_cpu_run_instr |
| 2866 |
#define CPU_RUN_PPC |
| 2867 |
#include "cpu_run.c" |
| 2868 |
#undef CPU_RINSTR |
| 2869 |
#undef CPU_RUN_PPC |
| 2870 |
#undef CPU_RUN |
| 2871 |
|
| 2872 |
|
| 2873 |
#define MEMORY_RW ppc_memory_rw |
| 2874 |
#define MEM_PPC |
| 2875 |
#include "memory_rw.c" |
| 2876 |
#undef MEM_PPC |
| 2877 |
#undef MEMORY_RW |
| 2878 |
|
| 2879 |
|
| 2880 |
/* |
| 2881 |
* ppc_cpu_family_init(): |
| 2882 |
* |
| 2883 |
* Fill in the cpu_family struct for PPC. |
| 2884 |
*/ |
| 2885 |
int ppc_cpu_family_init(struct cpu_family *fp) |
| 2886 |
{ |
| 2887 |
fp->name = "PPC"; |
| 2888 |
fp->cpu_new = ppc_cpu_new; |
| 2889 |
fp->list_available_types = ppc_cpu_list_available_types; |
| 2890 |
fp->register_match = ppc_cpu_register_match; |
| 2891 |
fp->disassemble_instr = ppc_cpu_disassemble_instr; |
| 2892 |
fp->register_dump = ppc_cpu_register_dump; |
| 2893 |
fp->run = ppc_cpu_run; |
| 2894 |
fp->dumpinfo = ppc_cpu_dumpinfo; |
| 2895 |
/* fp->show_full_statistics = ppc_cpu_show_full_statistics; */ |
| 2896 |
/* fp->tlbdump = ppc_cpu_tlbdump; */ |
| 2897 |
/* fp->interrupt = ppc_cpu_interrupt; */ |
| 2898 |
/* fp->interrupt_ack = ppc_cpu_interrupt_ack; */ |
| 2899 |
return 1; |
| 2900 |
} |
| 2901 |
|
| 2902 |
|
| 2903 |
#endif /* ENABLE_PPC */ |
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