diff options
Diffstat (limited to 'lib/mipsdis.cpp')
| -rw-r--r-- | lib/mipsdis.cpp | 360 |
1 files changed, 180 insertions, 180 deletions
diff --git a/lib/mipsdis.cpp b/lib/mipsdis.cpp index bb6364c..ce63623 100644 --- a/lib/mipsdis.cpp +++ b/lib/mipsdis.cpp @@ -1,180 +1,180 @@ -/*
- * PSX-Tools Bundle Pack
- * Copyright (C) 2002-2003 Nicolas "Pixel" Noble
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/* $Id: mipsdis.cpp,v 1.3 2004-11-27 21:44:48 pixel Exp $ */
-
-#include "mipsdis.h"
-#include "mips.h"
-
-TDis::TDis(mipsmem * _m) : mm(_m) {
- reset();
-}
-
-void TDis::reset() {
- invalid = false;
-}
-
-mipsmem * TDis::getmem() {
- return mm;
-}
-
-void TDis::add_branch(Uint32 target) {
- bheap.push(target);
-}
-
-void TDis::add_jump(Uint32 target) {
- jheap.push(target);
-}
-
-void TDis::add_function(Uint32 target) {
- fheap.push(target);
-}
-
-void TDis::SetTag(Uint32 target, int tag, bool v) {
- mm->SetTag(target, tag, v);
-}
-
-void TDis::Name(const String & name) {
-}
-
-void TDis::PushGPReg(int reg) {
-}
-
-void TDis::PushCPReg(int reg) {
-}
-
-void TDis::PushImm(Uint32 imm) {
-}
-
-void TDis::PushTarget(Uint32 target) {
- new refto_t(target, memdata::getmem(pc, getmem()));
-}
-
-void TDis::PushSa(Uint32 sa) {
-}
-
-void TDis::PushOfB(int reg, Uint32 offset, int width) {
-}
-
-void TDis::PushOffset(Uint32 offset) {
- new refto_t(offset, memdata::getmem(pc, getmem()));
-}
-
-void TDis::PushFull(Uint32 full) {
- if ((full >= 0x80000000) && (full < (0x80000000 + PSXMEM)))
- new refto_t(full, memdata::getmem(pc, getmem()));
-}
-
-void TDis::Invalid() {
- invalid = true;
-}
-
-void TDis::Suspect() {
-}
-
-void TDis::Comment(const String & c) {
-}
-
-Disassembler::Disassembler(mipsmem * _mm) : mm(_mm), dis(new TDis(mm)), started(false), infunction(false) {
-}
-
-Disassembler::~Disassembler() {
- delete dis;
-}
-
-void Disassembler::crawl_code(Uint32 pc) {
- Uint32 branched, ipc;
-
- if (pc == 0xffffffff) {
- pc = mm->GetPC();
- }
-
- dis->bheap.push(pc);
-
- while (dis->bheap.size()) {
- branched = pc = dis->bheap.top();
- dis->bheap.pop();
- printm(M_STATUS, "Crawling to branch %8.8lX\n", pc);
- do {
- if (pc >= (0x80000000 + PSXMEM)) {
- dis->invalid = true;
- break;
- }
- if (mm->GetTag(pc, CODE) || mm->GetTag(pc, INVALID)) {
- pc += 4;
- continue;
- }
- mm->SetTag(pc, CODE, true);
-
- printm(M_STATUS, "Working at %8.8lX\n", pc);
- decode(dis, pc);
-
- pc += 4;
- dis->reset();
- } while (!mm->GetTag(pc, STOP) && !dis->invalid);
-
- if (dis->invalid) {
- for (ipc = branched; ipc <= pc; ipc += 4) {
- mm->SetTag(ipc, CODE, false);
- mm->SetTag(ipc, INVALID, true);
- }
- }
-
- if (dis->invalid && infunction) {
- }
- }
-}
-
-void Disassembler::mainloop(void) {
- Uint32 pc;
-
- infunction = false;
-
- // Crawl the start part.
- printm(M_STATUS, "Starting crawl at %8.8lX\n", mm->GetPC());
- if (!started)
- crawl_code();
-
- started = true;
-
- // Work out all the functions.
- printm(M_STATUS, "Crawling all detected functions\n");
- infunction = true;
- while (dis->fheap.size()) {
- pc = dis->fheap.top();
- dis->fheap.pop();
- printm(M_STATUS, "Crawling function %8.8lX\n", pc);
- if (mm->GetTag(pc, CODE))
- continue;
- crawl_code(pc);
- }
-
- // Complete functions and all the detected jumps.
- printm(M_STATUS, "Fixing all the remaining jumps\n");
-#if 0
- infunction = false;
- while (dis->jheap.size()) {
- pc = dis->jheap.top();
- dis->jheap.pop();
- if (mm->GetTag(pc, CODE))
- continue;
- crawl_code(pc);
- }
-#endif
-}
+/* + * PSX-Tools Bundle Pack + * Copyright (C) 2002-2003 Nicolas "Pixel" Noble + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* $Id: mipsdis.cpp,v 1.4 2004-11-27 21:47:56 pixel Exp $ */ + +#include "mipsdis.h" +#include "mips.h" + +TDis::TDis(mipsmem * _m) : mm(_m) { + reset(); +} + +void TDis::reset() { + invalid = false; +} + +mipsmem * TDis::getmem() { + return mm; +} + +void TDis::add_branch(Uint32 target) { + bheap.push(target); +} + +void TDis::add_jump(Uint32 target) { + jheap.push(target); +} + +void TDis::add_function(Uint32 target) { + fheap.push(target); +} + +void TDis::SetTag(Uint32 target, int tag, bool v) { + mm->SetTag(target, tag, v); +} + +void TDis::Name(const String & name) { +} + +void TDis::PushGPReg(int reg) { +} + +void TDis::PushCPReg(int reg) { +} + +void TDis::PushImm(Uint32 imm) { +} + +void TDis::PushTarget(Uint32 target) { + new refto_t(target, memdata::getmem(pc, getmem())); +} + +void TDis::PushSa(Uint32 sa) { +} + +void TDis::PushOfB(int reg, Uint32 offset, int width) { +} + +void TDis::PushOffset(Uint32 offset) { + new refto_t(offset, memdata::getmem(pc, getmem())); +} + +void TDis::PushFull(Uint32 full) { + if ((full >= 0x80000000) && (full < (0x80000000 + PSXMEM))) + new refto_t(full, memdata::getmem(pc, getmem())); +} + +void TDis::Invalid() { + invalid = true; +} + +void TDis::Suspect() { +} + +void TDis::Comment(const String & c) { +} + +Disassembler::Disassembler(mipsmem * _mm) : mm(_mm), dis(new TDis(mm)), started(false), infunction(false) { +} + +Disassembler::~Disassembler() { + delete dis; +} + +void Disassembler::crawl_code(Uint32 pc) { + Uint32 branched, ipc; + + if (pc == 0xffffffff) { + pc = mm->GetPC(); + } + + dis->bheap.push(pc); + + while (dis->bheap.size()) { + branched = pc = dis->bheap.top(); + dis->bheap.pop(); + printm(M_STATUS, "Crawling to branch %8.8lX\n", pc); + do { + if (pc >= (0x80000000 + PSXMEM)) { + dis->invalid = true; + break; + } + if (mm->GetTag(pc, CODE) || mm->GetTag(pc, INVALID)) { + pc += 4; + continue; + } + mm->SetTag(pc, CODE, true); + + printm(M_STATUS, "Working at %8.8lX\n", pc); + decode(dis, pc); + + pc += 4; + dis->reset(); + } while (!mm->GetTag(pc, STOP) && !dis->invalid); + + if (dis->invalid) { + for (ipc = branched; ipc <= pc; ipc += 4) { + mm->SetTag(ipc, CODE, false); + mm->SetTag(ipc, INVALID, true); + } + } + + if (dis->invalid && infunction) { + } + } +} + +void Disassembler::mainloop(void) { + Uint32 pc; + + infunction = false; + + // Crawl the start part. + printm(M_STATUS, "Starting crawl at %8.8lX\n", mm->GetPC()); + if (!started) + crawl_code(); + + started = true; + + // Work out all the functions. + printm(M_STATUS, "Crawling all detected functions\n"); + infunction = true; + while (dis->fheap.size()) { + pc = dis->fheap.top(); + dis->fheap.pop(); + printm(M_STATUS, "Crawling function %8.8lX\n", pc); + if (mm->GetTag(pc, CODE)) + continue; + crawl_code(pc); + } + + // Complete functions and all the detected jumps. + printm(M_STATUS, "Fixing all the remaining jumps\n"); +#if 0 + infunction = false; + while (dis->jheap.size()) { + pc = dis->jheap.top(); + dis->jheap.pop(); + if (mm->GetTag(pc, CODE)) + continue; + crawl_code(pc); + } +#endif +} |