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GBA Memory: Fix misaligned BIOS reads

This commit is contained in:
Jeffrey Pfau 2016-10-11 21:59:57 -07:00
parent 64d8d80eee
commit cd3e304dd8
2 changed files with 6 additions and 2 deletions
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4
CHANGES
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@ -1,3 +1,7 @@
0.5.2: (Future)
Bugfixes:
- GBA Memory: Fix misaligned BIOS reads
0.5.1: (2016-10-05) 0.5.1: (2016-10-05)
Bugfixes: Bugfixes:
- Core: Fix importing save games as read-only - Core: Fix importing save games as read-only

4
src/gba/memory.c
View File

@ -352,7 +352,7 @@ static void GBASetActiveRegion(struct ARMCore* cpu, uint32_t address) {
#define LOAD_BIOS \ #define LOAD_BIOS \
if (address < SIZE_BIOS) { \ if (address < SIZE_BIOS) { \
if (memory->activeRegion == REGION_BIOS) { \ if (memory->activeRegion == REGION_BIOS) { \
LOAD_32(value, address, memory->bios); \ LOAD_32(value, address & -4, memory->bios); \
} else { \ } else { \
mLOG(GBA_MEM, GAME_ERROR, "Bad BIOS Load32: 0x%08X", address); \ mLOG(GBA_MEM, GAME_ERROR, "Bad BIOS Load32: 0x%08X", address); \
value = memory->biosPrefetch; \ value = memory->biosPrefetch; \
@ -479,7 +479,7 @@ uint32_t GBALoad16(struct ARMCore* cpu, uint32_t address, int* cycleCounter) {
case REGION_BIOS: case REGION_BIOS:
if (address < SIZE_BIOS) { if (address < SIZE_BIOS) {
if (memory->activeRegion == REGION_BIOS) { if (memory->activeRegion == REGION_BIOS) {
LOAD_16(value, address, memory->bios); LOAD_16(value, address & -2, memory->bios);
} else { } else {
mLOG(GBA_MEM, GAME_ERROR, "Bad BIOS Load16: 0x%08X", address); mLOG(GBA_MEM, GAME_ERROR, "Bad BIOS Load16: 0x%08X", address);
value = (memory->biosPrefetch >> ((address & 2) * 8)) & 0xFFFF; value = (memory->biosPrefetch >> ((address & 2) * 8)) & 0xFFFF;