ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Debugger: Add CLI functions for examining memory regions

This commit is contained in:
Jeffrey Pfau 2015-02-13 01:14:08 -08:00
parent 90e57c027b
commit 1f08d4c3c5
2 changed files with 80 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGES
View File

@ -23,6 +23,7 @@ Features:
- Support loading 7-Zip files
- Drag and drop game loading
- Cheat code support
- Debugger: Add CLI functions for examining memory regions
Bugfixes:
- ARM7: Extend prefetch by one stage
- GBA Audio: Support 16-bit writes to FIFO audio

80
src/debugger/cli-debugger.c
View File

@ -42,6 +42,9 @@ static void _setWatchpoint(struct CLIDebugger*, struct CLIDebugVector*);
static void _writeByte(struct CLIDebugger*, struct CLIDebugVector*);
static void _writeHalfword(struct CLIDebugger*, struct CLIDebugVector*);
static void _writeWord(struct CLIDebugger*, struct CLIDebugVector*);
static void _dumpByte(struct CLIDebugger*, struct CLIDebugVector*);
static void _dumpHalfword(struct CLIDebugger*, struct CLIDebugVector*);
static void _dumpWord(struct CLIDebugger*, struct CLIDebugVector*);
static void _breakIntoDefault(int signal);
static void _disassembleMode(struct CLIDebugger*, struct CLIDebugVector*, enum ExecutionMode mode);
@ -89,7 +92,10 @@ static struct CLIDebuggerCommandSummary _debuggerCommands[] = {
{ "w/1", _writeByte, CLIDVParse, "Write a byte at a specified offset" },
{ "w/2", _writeHalfword, CLIDVParse, "Write a halfword at a specified offset" },
{ "w/4", _writeWord, CLIDVParse, "Write a word at a specified offset" },
{ "x", _breakInto, 0, "Break into attached debugger (for developers)" },
{ "x/1", _dumpByte, CLIDVParse, "Examine bytes at a specified offset" },
{ "x/2", _dumpHalfword, CLIDVParse, "Examine halfwords at a specified offset" },
{ "x/4", _dumpWord, CLIDVParse, "Examine words at a specified offset" },
{ "!", _breakInto, 0, "Break into attached debugger (for developers)" },
{ 0, 0, 0, 0 }
};
@ -388,6 +394,78 @@ static void _writeWord(struct CLIDebugger* debugger, struct CLIDebugVector* dv)
debugger->d.cpu->memory.store32(debugger->d.cpu, address, value, 0);
}
static void _dumpByte(struct CLIDebugger* debugger, struct CLIDebugVector* dv) {
if (!dv || dv->type != CLIDV_INT_TYPE) {
printf("%s\n", ERROR_MISSING_ARGS);
return;
}
uint32_t address = dv->intValue;
uint32_t words = 16;
if (dv->next && dv->next->type == CLIDV_INT_TYPE) {
words = dv->next->intValue;
}
while (words) {
uint32_t line = 16;
if (line > words) {
line = words;
}
printf("0x%08X:", address);
for (; line > 0; --line, ++address, --words) {
uint32_t value = debugger->d.cpu->memory.load8(debugger->d.cpu, address, 0);
printf(" %02X", value);
}
printf("\n");
}
}
static void _dumpHalfword(struct CLIDebugger* debugger, struct CLIDebugVector* dv) {
if (!dv || dv->type != CLIDV_INT_TYPE) {
printf("%s\n", ERROR_MISSING_ARGS);
return;
}
uint32_t address = dv->intValue;
uint32_t words = 8;
if (dv->next && dv->next->type == CLIDV_INT_TYPE) {
words = dv->next->intValue;
}
while (words) {
uint32_t line = 8;
if (line > words) {
line = words;
}
printf("0x%08X:", address);
for (; line > 0; --line, address += 2, --words) {
uint32_t value = debugger->d.cpu->memory.load16(debugger->d.cpu, address, 0);
printf(" %04X", value);
}
printf("\n");
}
}
static void _dumpWord(struct CLIDebugger* debugger, struct CLIDebugVector* dv) {
if (!dv || dv->type != CLIDV_INT_TYPE) {
printf("%s\n", ERROR_MISSING_ARGS);
return;
}
uint32_t address = dv->intValue;
uint32_t words = 4;
if (dv->next && dv->next->type == CLIDV_INT_TYPE) {
words = dv->next->intValue;
}
while (words) {
uint32_t line = 4;
if (line > words) {
line = words;
}
printf("0x%08X:", address);
for (; line > 0; --line, address += 4, --words) {
uint32_t value = debugger->d.cpu->memory.load32(debugger->d.cpu, address, 0);
printf(" %08X", value);
}
printf("\n");
}
}
static void _setBreakpoint(struct CLIDebugger* debugger, struct CLIDebugVector* dv) {
if (!dv || dv->type != CLIDV_INT_TYPE) {
printf("%s\n", ERROR_MISSING_ARGS);