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/* |
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* Copyright (C) 2005-2007 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: cpu_sparc.c,v 1.44 2007/03/26 02:18:44 debug Exp $ |
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* |
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* SPARC CPU emulation. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
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|
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#include "cpu.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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#include "settings.h" |
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#include "symbol.h" |
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|
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|
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#define DYNTRANS_DUALMODE_32 |
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#define DYNTRANS_DELAYSLOT |
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#include "tmp_sparc_head.c" |
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|
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|
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static char *sparc_regnames[N_SPARC_REG] = SPARC_REG_NAMES; |
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static char *sparc_pregnames[N_SPARC_PREG] = SPARC_PREG_NAMES; |
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static char *sparc_regbranch_names[N_SPARC_REGBRANCH_TYPES] = |
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SPARC_REGBRANCH_NAMES; |
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static char *sparc_branch_names[N_SPARC_BRANCH_TYPES] = SPARC_BRANCH_NAMES; |
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static char *sparc_alu_names[N_ALU_INSTR_TYPES] = SPARC_ALU_NAMES; |
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static char *sparc_loadstore_names[N_LOADSTORE_TYPES] = SPARC_LOADSTORE_NAMES; |
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|
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|
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/* |
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* sparc_cpu_new(): |
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* |
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* Create a new SPARC cpu object. |
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* |
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* Returns 1 on success, 0 if there was no matching SPARC processor with |
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* this cpu_type_name. |
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*/ |
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int sparc_cpu_new(struct cpu *cpu, struct memory *mem, struct machine *machine, |
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int cpu_id, char *cpu_type_name) |
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{ |
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int any_cache = 0; |
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int i = 0; |
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struct sparc_cpu_type_def cpu_type_defs[] = SPARC_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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while (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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break; |
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} |
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i++; |
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} |
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if (cpu_type_defs[i].name == NULL) |
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return 0; |
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|
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cpu->memory_rw = sparc_memory_rw; |
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|
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cpu->cd.sparc.cpu_type = cpu_type_defs[i]; |
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cpu->name = cpu->cd.sparc.cpu_type.name; |
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cpu->byte_order = EMUL_BIG_ENDIAN; |
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cpu->is_32bit = (cpu->cd.sparc.cpu_type.bits == 32)? 1 : 0; |
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|
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cpu->instruction_has_delayslot = sparc_cpu_instruction_has_delayslot; |
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|
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/* TODO: Separate this into 64-bit vs 32-bit? */ |
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cpu->translate_v2p = sparc_translate_v2p; |
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|
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if (cpu->is_32bit) { |
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cpu->run_instr = sparc32_run_instr; |
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cpu->update_translation_table = |
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sparc32_update_translation_table; |
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cpu->invalidate_translation_caches = |
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sparc32_invalidate_translation_caches; |
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cpu->invalidate_code_translation = |
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sparc32_invalidate_code_translation; |
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} else { |
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cpu->run_instr = sparc_run_instr; |
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cpu->update_translation_table = sparc_update_translation_table; |
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cpu->invalidate_translation_caches = |
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sparc_invalidate_translation_caches; |
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cpu->invalidate_code_translation = |
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sparc_invalidate_code_translation; |
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} |
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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->name); |
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|
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if (cpu->cd.sparc.cpu_type.icache_shift != 0) |
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any_cache = 1; |
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if (cpu->cd.sparc.cpu_type.dcache_shift != 0) |
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any_cache = 1; |
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if (cpu->cd.sparc.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", (int) |
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(1 << (cpu->cd.sparc.cpu_type.icache_shift-10)), |
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(int)(1<<(cpu->cd.sparc.cpu_type.dcache_shift-10))); |
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if (cpu->cd.sparc.cpu_type.l2cache_shift != 0) { |
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debug(", L2 = %i KB", |
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(int)(1 << (cpu->cd.sparc.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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/* After a reset, the Tick register is not readable by user code: */ |
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cpu->cd.sparc.tick |= SPARC_TICK_NPT; |
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|
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/* Insert number of Windows and Trap levels into the version reg.: */ |
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cpu->cd.sparc.ver |= N_REG_WINDOWS | (MAXTL << SPARC_VER_MAXTL_SHIFT); |
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|
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/* Misc. initial settings suitable for userland emulation: */ |
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cpu->cd.sparc.cansave = cpu->cd.sparc.cpu_type.nwindows - 2; |
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cpu->cd.sparc.canrestore = 0; |
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cpu->cd.sparc.cleanwin = 1; |
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cpu->cd.sparc.otherwin = 0; |
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|
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if (cpu->cd.sparc.cansave + cpu->cd.sparc.canrestore |
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+ cpu->cd.sparc.otherwin != cpu->cd.sparc.cpu_type.nwindows - 2) { |
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fatal("Fatal internal error: inconsistent windowing " |
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"parameters!\n"); |
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exit(1); |
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} |
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|
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if (cpu->cd.sparc.cpu_type.nwindows > N_REG_WINDOWS) { |
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fatal("Fatal internal error: nwindows = %1 is more than %i\n", |
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cpu->cd.sparc.cpu_type.nwindows, N_REG_WINDOWS); |
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exit(1); |
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} |
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|
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CPU_SETTINGS_ADD_REGISTER64("pc", cpu->pc); |
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CPU_SETTINGS_ADD_REGISTER64("y", cpu->cd.sparc.y); |
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CPU_SETTINGS_ADD_REGISTER64("pstate", cpu->cd.sparc.pstate); |
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for (i=0; i<N_SPARC_REG; i++) |
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CPU_SETTINGS_ADD_REGISTER64(sparc_regnames[i], |
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cpu->cd.sparc.r[i]); |
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/* TODO: Handler for writes to the zero register! */ |
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|
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return 1; |
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} |
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|
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|
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/* |
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* sparc_cpu_list_available_types(): |
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* |
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* Print a list of available SPARC CPU types. |
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*/ |
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void sparc_cpu_list_available_types(void) |
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{ |
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int i, j; |
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struct sparc_cpu_type_def tdefs[] = SPARC_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=16 - strlen(tdefs[i].name); j>0; j--) |
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debug(" "); |
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i++; |
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if ((i % 4) == 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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* sparc_cpu_dumpinfo(): |
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*/ |
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void sparc_cpu_dumpinfo(struct cpu *cpu) |
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{ |
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debug(", %i-bit\n", cpu->cd.sparc.cpu_type.bits); |
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} |
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|
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|
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/* |
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* sparc_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 sparc_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs) |
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{ |
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char *symbol; |
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uint64_t offset; |
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int i, x = cpu->cpu_id; |
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int bits32 = cpu->is_32bit; |
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|
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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); |
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if (bits32) |
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debug("%08"PRIx32, (uint32_t) cpu->pc); |
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else |
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debug("%016"PRIx64, (uint64_t) 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: y = 0x%08"PRIx32" ", |
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x, (uint32_t)cpu->cd.sparc.y); |
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debug("icc = "); |
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debug(cpu->cd.sparc.ccr & SPARC_CCR_N? "N" : "n"); |
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debug(cpu->cd.sparc.ccr & SPARC_CCR_Z? "Z" : "z"); |
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debug(cpu->cd.sparc.ccr & SPARC_CCR_V? "V" : "v"); |
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debug(cpu->cd.sparc.ccr & SPARC_CCR_C? "C" : "c"); |
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if (!bits32) { |
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debug(" xcc = "); |
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debug((cpu->cd.sparc.ccr >> SPARC_CCR_XCC_SHIFT) |
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& SPARC_CCR_N? "N" : "n"); |
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debug((cpu->cd.sparc.ccr >> SPARC_CCR_XCC_SHIFT) |
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& SPARC_CCR_Z? "Z" : "z"); |
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debug((cpu->cd.sparc.ccr >> SPARC_CCR_XCC_SHIFT) |
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& SPARC_CCR_V? "V" : "v"); |
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debug((cpu->cd.sparc.ccr >> SPARC_CCR_XCC_SHIFT) |
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& SPARC_CCR_C? "C" : "c"); |
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} |
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debug("\n"); |
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|
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if (bits32) |
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debug("cpu%i: psr = 0x%08"PRIx32"\n", |
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x, (uint32_t) cpu->cd.sparc.psr); |
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else |
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debug("cpu%i: pstate = 0x%016"PRIx64"\n", |
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x, (uint64_t) cpu->cd.sparc.pstate); |
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|
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if (bits32) { |
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for (i=0; i<N_SPARC_REG; i++) { |
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if ((i & 3) == 0) |
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debug("cpu%i: ", x); |
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/* Skip the zero register: */ |
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if (i == SPARC_ZEROREG) { |
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debug(" "); |
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continue; |
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} |
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debug("%s=", sparc_regnames[i]); |
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debug("0x%08x", (int) cpu->cd.sparc.r[i]); |
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if ((i & 3) < 3) |
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debug(" "); |
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else |
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debug("\n"); |
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} |
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} else { |
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for (i=0; i<N_SPARC_REG; i++) { |
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int r = ((i >> 1) & 15) | ((i&1) << 4); |
| 279 |
if ((i & 1) == 0) |
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debug("cpu%i: ", x); |
| 281 |
|
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/* Skip the zero register: */ |
| 283 |
if (i == SPARC_ZEROREG) { |
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debug(" "); |
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continue; |
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} |
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|
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debug("%s = ", sparc_regnames[r]); |
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debug("0x%016"PRIx64, (uint64_t) |
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cpu->cd.sparc.r[r]); |
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|
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if ((i & 1) < 1) |
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debug(" "); |
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else |
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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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if (coprocs & 1) { |
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int sum; |
| 302 |
|
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debug("cpu%i: cwp = 0x%02x\n", x, cpu->cd.sparc.cwp); |
| 304 |
debug("cpu%i: cansave = 0x%02x\n", x, cpu->cd.sparc.cansave); |
| 305 |
debug("cpu%i: canrestore = 0x%02x\n", x, |
| 306 |
cpu->cd.sparc.canrestore); |
| 307 |
debug("cpu%i: otherwin = 0x%02x\n", x, |
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cpu->cd.sparc.otherwin); |
| 309 |
debug("cpu%i: cleanwin = 0x%02x\n", x, |
| 310 |
cpu->cd.sparc.cleanwin); |
| 311 |
|
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sum = cpu->cd.sparc.cansave + cpu->cd.sparc.canrestore + |
| 313 |
cpu->cd.sparc.otherwin; |
| 314 |
debug("cpu%i: cansave + canrestore + otherwin = %i + %i + %i" |
| 315 |
" = %i", x, cpu->cd.sparc.cansave, cpu->cd.sparc.canrestore, |
| 316 |
cpu->cd.sparc.otherwin, sum); |
| 317 |
if (sum == cpu->cd.sparc.cpu_type.nwindows - 2) |
| 318 |
debug(" (consistent)\n"); |
| 319 |
else |
| 320 |
debug(" (INCONSISTENT!)\n"); |
| 321 |
|
| 322 |
debug("cpu%i: wstate: other = %i, normal = %i\n", |
| 323 |
x, (cpu->cd.sparc.wstate & SPARC_WSTATE_OTHER_MASK) |
| 324 |
>> SPARC_WSTATE_OTHER_SHIFT, cpu->cd.sparc.wstate & |
| 325 |
SPARC_WSTATE_NORMAL_MASK); |
| 326 |
|
| 327 |
debug("cpu%i: asi = 0x%02x\n", x, cpu->cd.sparc.asi); |
| 328 |
debug("cpu%i: tl = 0x%02x\n", x, cpu->cd.sparc.tl); |
| 329 |
debug("cpu%i: pil = 0x%02x\n", x, cpu->cd.sparc.pil); |
| 330 |
|
| 331 |
for (i=0; i<MAXTL; i++) { |
| 332 |
debug("cpu%i: tpc[%i] = 0x", x, i); |
| 333 |
if (bits32) |
| 334 |
debug("%08"PRIx32"\n", |
| 335 |
(uint32_t) cpu->cd.sparc.tpc[i]); |
| 336 |
else |
| 337 |
debug("%016"PRIx64"\n", |
| 338 |
(uint64_t) cpu->cd.sparc.tpc[i]); |
| 339 |
|
| 340 |
debug("cpu%i: tnpc[%i] = 0x", x, i); |
| 341 |
if (bits32) |
| 342 |
debug("%08"PRIx32"\n", |
| 343 |
(uint32_t) cpu->cd.sparc.tnpc[i]); |
| 344 |
else |
| 345 |
debug("%016"PRIx64"\n", |
| 346 |
(uint64_t) cpu->cd.sparc.tnpc[i]); |
| 347 |
|
| 348 |
debug("cpu%i: tstate[%i] = 0x", x, i); |
| 349 |
if (bits32) |
| 350 |
debug("%08"PRIx32"\n", |
| 351 |
(uint32_t) cpu->cd.sparc.tstate[i]); |
| 352 |
else |
| 353 |
debug("%016"PRIx64"\n", |
| 354 |
(uint64_t) cpu->cd.sparc.tstate[i]); |
| 355 |
|
| 356 |
debug("cpu%i: ttype[%i] = 0x"PRIx32"\n", |
| 357 |
x, i, cpu->cd.sparc.ttype[i]); |
| 358 |
} |
| 359 |
|
| 360 |
debug("cpu%i: tba = 0x", x); |
| 361 |
if (bits32) |
| 362 |
debug("%08"PRIx32"\n", (uint32_t) cpu->cd.sparc.tba); |
| 363 |
else |
| 364 |
debug("%016"PRIx64"\n", (uint64_t) cpu->cd.sparc.tba); |
| 365 |
} |
| 366 |
} |
| 367 |
|
| 368 |
|
| 369 |
/* |
| 370 |
* sparc_cpu_tlbdump(): |
| 371 |
* |
| 372 |
* Called from the debugger to dump the TLB in a readable format. |
| 373 |
* x is the cpu number to dump, or -1 to dump all CPUs. |
| 374 |
* |
| 375 |
* If rawflag is nonzero, then the TLB contents isn't formated nicely, |
| 376 |
* just dumped. |
| 377 |
*/ |
| 378 |
void sparc_cpu_tlbdump(struct machine *m, int x, int rawflag) |
| 379 |
{ |
| 380 |
} |
| 381 |
|
| 382 |
|
| 383 |
/* |
| 384 |
* sparc_cpu_instruction_has_delayslot(): |
| 385 |
* |
| 386 |
* Return 1 if an opcode is a branch, 0 otherwise. |
| 387 |
*/ |
| 388 |
int sparc_cpu_instruction_has_delayslot(struct cpu *cpu, unsigned char *ib) |
| 389 |
{ |
| 390 |
uint32_t iword = *((uint32_t *)&ib[0]); |
| 391 |
int hi2, op2; |
| 392 |
|
| 393 |
iword = BE32_TO_HOST(iword); |
| 394 |
|
| 395 |
hi2 = iword >> 30; |
| 396 |
op2 = (hi2 == 0)? ((iword >> 22) & 7) : ((iword >> 19) & 0x3f); |
| 397 |
|
| 398 |
switch (hi2) { |
| 399 |
case 0: /* conditional branch */ |
| 400 |
switch (op2) { |
| 401 |
case 1: |
| 402 |
case 2: |
| 403 |
case 3: return 1; |
| 404 |
} |
| 405 |
break; |
| 406 |
case 1: /* call */ |
| 407 |
return 1; |
| 408 |
case 2: /* misc alu instructions */ |
| 409 |
switch (op2) { |
| 410 |
case 56:/* jump and link */ |
| 411 |
return 1; |
| 412 |
case 57:/* return */ |
| 413 |
return 1; |
| 414 |
} |
| 415 |
break; |
| 416 |
} |
| 417 |
|
| 418 |
return 0; |
| 419 |
} |
| 420 |
|
| 421 |
|
| 422 |
/* |
| 423 |
* sparc_cpu_disassemble_instr(): |
| 424 |
* |
| 425 |
* Convert an instruction word into human readable format, for instruction |
| 426 |
* tracing. |
| 427 |
* |
| 428 |
* If running is 1, cpu->pc should be the address of the instruction. |
| 429 |
* |
| 430 |
* If running is 0, things that depend on the runtime environment (eg. |
| 431 |
* register contents) will not be shown, and addr will be used instead of |
| 432 |
* cpu->pc for relative addresses. |
| 433 |
*/ |
| 434 |
int sparc_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
| 435 |
int running, uint64_t dumpaddr) |
| 436 |
{ |
| 437 |
uint64_t offset, tmp; |
| 438 |
uint32_t iword; |
| 439 |
int hi2, op2, rd, rs1, rs2, siconst, btype, tmps, no_rd = 0; |
| 440 |
int asi, no_rs1 = 0, no_rs2 = 0, jmpl = 0, shift_x = 0, cc, p; |
| 441 |
char *symbol, *mnem, *rd_name, *rs_name; |
| 442 |
|
| 443 |
if (running) |
| 444 |
dumpaddr = cpu->pc; |
| 445 |
|
| 446 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 447 |
dumpaddr, &offset); |
| 448 |
if (symbol != NULL && offset==0) |
| 449 |
debug("<%s>\n", symbol); |
| 450 |
|
| 451 |
if (cpu->machine->ncpus > 1 && running) |
| 452 |
debug("cpu%i: ", cpu->cpu_id); |
| 453 |
|
| 454 |
if (cpu->is_32bit) |
| 455 |
debug("%08"PRIx32, (uint32_t) dumpaddr); |
| 456 |
else |
| 457 |
debug("%016"PRIx64, (uint64_t) dumpaddr); |
| 458 |
|
| 459 |
iword = *(uint32_t *)&instr[0]; |
| 460 |
iword = BE32_TO_HOST(iword); |
| 461 |
|
| 462 |
debug(": %08x", iword); |
| 463 |
|
| 464 |
if (running && cpu->delay_slot) |
| 465 |
debug(" (d)"); |
| 466 |
|
| 467 |
debug("\t"); |
| 468 |
|
| 469 |
|
| 470 |
/* |
| 471 |
* Decode the instruction: |
| 472 |
* |
| 473 |
* http://www.cs.unm.edu/~maccabe/classes/341/labman/node9.html is a |
| 474 |
* good quick description of SPARC instruction encoding. |
| 475 |
*/ |
| 476 |
|
| 477 |
hi2 = iword >> 30; |
| 478 |
rd = (iword >> 25) & 31; |
| 479 |
btype = rd & (N_SPARC_BRANCH_TYPES - 1); |
| 480 |
rs1 = (iword >> 14) & 31; |
| 481 |
asi = (iword >> 5) & 0xff; |
| 482 |
rs2 = iword & 31; |
| 483 |
siconst = (int16_t)((iword & 0x1fff) << 3) >> 3; |
| 484 |
op2 = (hi2 == 0)? ((iword >> 22) & 7) : ((iword >> 19) & 0x3f); |
| 485 |
cc = (iword >> 20) & 3; |
| 486 |
p = (iword >> 19) & 1; |
| 487 |
|
| 488 |
switch (hi2) { |
| 489 |
|
| 490 |
case 0: switch (op2) { |
| 491 |
|
| 492 |
case 0: debug("illtrap\t0x%x", iword & 0x3fffff); |
| 493 |
break; |
| 494 |
|
| 495 |
case 1: |
| 496 |
case 2: |
| 497 |
case 3: if (op2 == 3) |
| 498 |
debug("%s", sparc_regbranch_names[btype & 7]); |
| 499 |
else |
| 500 |
debug("%s", sparc_branch_names[btype]); |
| 501 |
if (rd & 16) |
| 502 |
debug(",a"); |
| 503 |
tmps = iword; |
| 504 |
switch (op2) { |
| 505 |
case 1: tmps <<= 13; |
| 506 |
tmps >>= 11; |
| 507 |
if (!p) |
| 508 |
debug(",pn"); |
| 509 |
debug("\t%%%s,", cc==0 ? "icc" : |
| 510 |
(cc==2 ? "xcc" : "UNKNOWN")); |
| 511 |
break; |
| 512 |
case 2: tmps <<= 10; |
| 513 |
tmps >>= 8; |
| 514 |
debug("\t"); |
| 515 |
break; |
| 516 |
case 3: if (btype & 8) |
| 517 |
debug("(INVALID)"); |
| 518 |
if (!p) |
| 519 |
debug(",pn"); |
| 520 |
debug("\t%%%s,", sparc_regnames[rs1]); |
| 521 |
tmps = ((iword & 0x300000) >> 6) |
| 522 |
| (iword & 0x3fff); |
| 523 |
tmps <<= 16; |
| 524 |
tmps >>= 14; |
| 525 |
break; |
| 526 |
} |
| 527 |
tmp = (int64_t)(int32_t)tmps; |
| 528 |
tmp += dumpaddr; |
| 529 |
debug("0x%"PRIx64, (uint64_t) tmp); |
| 530 |
symbol = get_symbol_name(&cpu->machine-> |
| 531 |
symbol_context, tmp, &offset); |
| 532 |
if (symbol != NULL) |
| 533 |
debug(" \t<%s>", symbol); |
| 534 |
break; |
| 535 |
|
| 536 |
case 4: if (rd == 0) { |
| 537 |
debug("nop"); |
| 538 |
break; |
| 539 |
} |
| 540 |
debug("sethi\t%%hi(0x%x),", (iword & 0x3fffff) << 10); |
| 541 |
debug("%%%s", sparc_regnames[rd]); |
| 542 |
break; |
| 543 |
|
| 544 |
default:debug("UNIMPLEMENTED hi2=%i, op2=0x%x", hi2, op2); |
| 545 |
} |
| 546 |
break; |
| 547 |
|
| 548 |
case 1: tmp = (int32_t)iword << 2; |
| 549 |
tmp += dumpaddr; |
| 550 |
debug("call\t0x%"PRIx64, (uint64_t) tmp); |
| 551 |
symbol = get_symbol_name(&cpu->machine->symbol_context, |
| 552 |
tmp, &offset); |
| 553 |
if (symbol != NULL) |
| 554 |
debug(" \t<%s>", symbol); |
| 555 |
break; |
| 556 |
|
| 557 |
case 2: mnem = sparc_alu_names[op2]; |
| 558 |
rs_name = sparc_regnames[rs1]; |
| 559 |
rd_name = sparc_regnames[rd]; |
| 560 |
switch (op2) { |
| 561 |
case 0: /* add */ |
| 562 |
if (rd == rs1 && (iword & 0x3fff) == 0x2001) { |
| 563 |
mnem = "inc"; |
| 564 |
no_rs1 = no_rs2 = 1; |
| 565 |
} |
| 566 |
break; |
| 567 |
case 2: /* or */ |
| 568 |
if (rs1 == 0) { |
| 569 |
mnem = "mov"; |
| 570 |
no_rs1 = 1; |
| 571 |
} |
| 572 |
break; |
| 573 |
case 4: /* sub */ |
| 574 |
if (rd == rs1 && (iword & 0x3fff) == 0x2001) { |
| 575 |
mnem = "dec"; |
| 576 |
no_rs1 = no_rs2 = 1; |
| 577 |
} |
| 578 |
break; |
| 579 |
case 20:/* subcc */ |
| 580 |
if (rd == 0) { |
| 581 |
mnem = "cmp"; |
| 582 |
no_rd = 1; |
| 583 |
} |
| 584 |
break; |
| 585 |
case 37:/* sll */ |
| 586 |
case 38:/* srl */ |
| 587 |
case 39:/* sra */ |
| 588 |
if (siconst & 0x1000) { |
| 589 |
siconst &= 0x3f; |
| 590 |
shift_x = 1; |
| 591 |
} else |
| 592 |
siconst &= 0x1f; |
| 593 |
break; |
| 594 |
case 40:/* rd on pre-sparcv9, membar etc on sparcv9 */ |
| 595 |
no_rs2 = 1; |
| 596 |
rs_name = "UNIMPLEMENTED"; |
| 597 |
switch (rs1) { |
| 598 |
case 0: rs_name = "y"; break; |
| 599 |
case 2: rs_name = "ccr"; break; |
| 600 |
case 3: rs_name = "asi"; break; |
| 601 |
case 4: rs_name = "tick"; break; |
| 602 |
case 5: rs_name = "pc"; break; |
| 603 |
case 6: rs_name = "fprs"; break; |
| 604 |
case 15:/* membar etc. */ |
| 605 |
if ((iword >> 13) & 1) { |
| 606 |
no_rd = 1; |
| 607 |
mnem = "membar"; |
| 608 |
rs_name = "#TODO"; |
| 609 |
} |
| 610 |
break; |
| 611 |
case 23:rs_name = "tick_cmpr"; break; /* v9 ? */ |
| 612 |
} |
| 613 |
break; |
| 614 |
case 41:rs_name = "psr"; |
| 615 |
no_rs2 = 1; |
| 616 |
break; |
| 617 |
case 42:/* TODO: something with wim only, on sparc v8? */ |
| 618 |
rs_name = sparc_pregnames[rs1]; |
| 619 |
no_rs2 = 1; |
| 620 |
break; |
| 621 |
case 43:/* ? */ |
| 622 |
/* TODO: pre-sparcv9: rd, rs_name = "tbr"; */ |
| 623 |
if (iword == 0x81580000) { |
| 624 |
mnem = "flushw"; |
| 625 |
no_rs1 = no_rs2 = no_rd = 1; |
| 626 |
} |
| 627 |
break; |
| 628 |
case 48:/* wr* (SPARCv8) */ |
| 629 |
mnem = "wr"; |
| 630 |
if (rs1 == SPARC_ZEROREG) |
| 631 |
no_rs1 = 1; |
| 632 |
switch (rd) { |
| 633 |
case 0: rd_name = "y"; break; |
| 634 |
case 2: rd_name = "ccr"; break; |
| 635 |
case 3: rd_name = "asi"; break; |
| 636 |
case 6: rd_name = "fprs"; break; |
| 637 |
case 23:rd_name = "tick_cmpr"; break; /* v9 ? */ |
| 638 |
default:rd_name = "UNIMPLEMENTED"; |
| 639 |
} |
| 640 |
break; |
| 641 |
case 49:/* ? */ |
| 642 |
if (iword == 0x83880000) { |
| 643 |
mnem = "restored"; |
| 644 |
no_rs1 = no_rs2 = no_rd = 1; |
| 645 |
} |
| 646 |
break; |
| 647 |
case 50:/* wrpr */ |
| 648 |
rd_name = sparc_pregnames[rd]; |
| 649 |
if (rs1 == SPARC_ZEROREG) |
| 650 |
no_rs1 = 1; |
| 651 |
break; |
| 652 |
case 56:/* jmpl */ |
| 653 |
jmpl = 1; |
| 654 |
if (iword == 0x81c7e008) { |
| 655 |
mnem = "ret"; |
| 656 |
no_rs1 = no_rs2 = no_rd = 1; |
| 657 |
} |
| 658 |
if (iword == 0x81c3e008) { |
| 659 |
mnem = "retl"; |
| 660 |
no_rs1 = no_rs2 = no_rd = 1; |
| 661 |
} |
| 662 |
break; |
| 663 |
case 61:/* restore */ |
| 664 |
if (iword == 0x81e80000) |
| 665 |
no_rs1 = no_rs2 = no_rd = 1; |
| 666 |
break; |
| 667 |
case 62:if (iword == 0x83f00000) { |
| 668 |
mnem = "retry"; |
| 669 |
no_rs1 = no_rs2 = no_rd = 1; |
| 670 |
} |
| 671 |
break; |
| 672 |
} |
| 673 |
debug("%s", mnem); |
| 674 |
if (shift_x) |
| 675 |
debug("x"); |
| 676 |
debug("\t"); |
| 677 |
if (!no_rs1) |
| 678 |
debug("%%%s", rs_name); |
| 679 |
if (!no_rs1 && !no_rs2) { |
| 680 |
if (jmpl) |
| 681 |
debug("+"); |
| 682 |
else |
| 683 |
debug(","); |
| 684 |
} |
| 685 |
if (!no_rs2) { |
| 686 |
if ((iword >> 13) & 1) { |
| 687 |
if (siconst >= -9 && siconst <= 9) |
| 688 |
debug("%i", siconst); |
| 689 |
else if (siconst < 0 && (op2 == 0 || |
| 690 |
op2 == 4 || op2 == 20 || op2 == 60)) |
| 691 |
debug("-0x%x", -siconst); |
| 692 |
else |
| 693 |
debug("0x%x", siconst); |
| 694 |
} else { |
| 695 |
debug("%%%s", sparc_regnames[rs2]); |
| 696 |
} |
| 697 |
} |
| 698 |
if ((!no_rs1 || !no_rs2) && !no_rd) |
| 699 |
debug(","); |
| 700 |
if (!no_rd) |
| 701 |
debug("%%%s", rd_name); |
| 702 |
break; |
| 703 |
|
| 704 |
case 3: mnem = sparc_loadstore_names[op2]; |
| 705 |
switch (op2) { |
| 706 |
case 0: /* 'lduw' was called only 'ld' in pre-v9 */ |
| 707 |
if (cpu->cd.sparc.cpu_type.v < 9) |
| 708 |
mnem = "ld"; |
| 709 |
break; |
| 710 |
} |
| 711 |
debug("%s\t", mnem); |
| 712 |
if (op2 & 4) |
| 713 |
debug("%%%s,", sparc_regnames[rd]); |
| 714 |
debug("[%%%s", sparc_regnames[rs1]); |
| 715 |
if ((iword >> 13) & 1) { |
| 716 |
if (siconst > 0) |
| 717 |
debug("+"); |
| 718 |
if (siconst != 0) |
| 719 |
debug("%i", siconst); |
| 720 |
} else { |
| 721 |
if (rs2 != 0) |
| 722 |
debug("+%%%s", sparc_regnames[rs2]); |
| 723 |
} |
| 724 |
debug("]"); |
| 725 |
if ((op2 & 0x30) == 0x10) |
| 726 |
debug("(%i)", asi); |
| 727 |
if (!(op2 & 4)) |
| 728 |
debug(",%%%s", sparc_regnames[rd]); |
| 729 |
break; |
| 730 |
} |
| 731 |
|
| 732 |
debug("\n"); |
| 733 |
return sizeof(iword); |
| 734 |
} |
| 735 |
|
| 736 |
|
| 737 |
/* |
| 738 |
* sparc_update_pstate(): |
| 739 |
* |
| 740 |
* Update the pstate register (64-bit sparcs). |
| 741 |
*/ |
| 742 |
static void sparc_update_pstate(struct cpu *cpu, uint64_t new_pstate) |
| 743 |
{ |
| 744 |
/* uint64_t old_pstate = cpu->cd.sparc.pstate; */ |
| 745 |
|
| 746 |
/* TODO: Check individual bits. */ |
| 747 |
|
| 748 |
cpu->cd.sparc.pstate = new_pstate; |
| 749 |
} |
| 750 |
|
| 751 |
|
| 752 |
#include "tmp_sparc_tail.c" |
| 753 |
|
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