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GB Memory: Fix patching bank 0

This commit is contained in:
Jeffrey Pfau 2016-10-24 11:49:06 -07:00
parent c1c27b46fe
commit 474f1c6e9c
3 changed files with 9 additions and 5 deletions
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1
CHANGES
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@ -18,6 +18,7 @@ Bugfixes:
- Qt: Fix cut off tiles and alignment issues in tile viewer
- GB MBC: Fix initializing MBC when no ROM is loaded
- VFS: Fix resizing memory chunks when not needed
- GB Memory: Fix patching ROM bank 0
Misc:
- SDL: Remove scancode key input
- GBA Video: Clean up unused timers

6
src/gb/gb.c
View File

@ -243,6 +243,9 @@ void GBSavedataUnmask(struct GB* gb) {
void GBUnloadROM(struct GB* gb) {
// TODO: Share with GBAUnloadROM
if (gb->memory.rom && gb->memory.romBase != gb->memory.rom && gb->memory.romBase != gb->pristineRom) {
free(gb->memory.romBase);
}
if (gb->memory.rom && gb->pristineRom != gb->memory.rom) {
if (gb->yankedRomSize) {
gb->yankedRomSize = 0;
@ -250,9 +253,6 @@ void GBUnloadROM(struct GB* gb) {
mappedMemoryFree(gb->memory.rom, GB_SIZE_CART_MAX);
gb->memory.rom = gb->pristineRom;
}
if (gb->memory.rom && gb->memory.romBase != gb->memory.rom) {
free(gb->memory.romBase);
}
gb->memory.rom = 0;
if (gb->romVf) {

7
src/gb/memory.c
View File

@ -508,8 +508,8 @@ void GBPatch8(struct LR35902Core* cpu, uint16_t address, int8_t value, int8_t* o
case GB_REGION_CART_BANK0 + 2:
case GB_REGION_CART_BANK0 + 3:
_pristineCow(gb);
oldValue = memory->rom[address & (GB_SIZE_CART_BANK0 - 1)];
memory->rom[address & (GB_SIZE_CART_BANK0 - 1)] = value;
oldValue = memory->romBase[address & (GB_SIZE_CART_BANK0 - 1)];
memory->romBase[address & (GB_SIZE_CART_BANK0 - 1)] = value;
break;
case GB_REGION_CART_BANK1:
case GB_REGION_CART_BANK1 + 1:
@ -654,5 +654,8 @@ void _pristineCow(struct GB* gb) {
gb->memory.rom = anonymousMemoryMap(GB_SIZE_CART_MAX);
memcpy(gb->memory.rom, gb->pristineRom, gb->memory.romSize);
memset(((uint8_t*) gb->memory.rom) + gb->memory.romSize, 0xFF, GB_SIZE_CART_MAX - gb->memory.romSize);
if (gb->pristineRom == gb->memory.romBase) {
gb->memory.romBase = gb->memory.rom;
}
GBMBCSwitchBank(&gb->memory, gb->memory.currentBank);
}