diff --git a/CHANGES b/CHANGES index 8b3fa78c1..7accca33f 100644 --- a/CHANGES +++ b/CHANGES @@ -23,6 +23,7 @@ Bugfixes: - GBA Memory: Fix Store8 to OBJ VRAM - GBA Memory: Fix alignment of LDM/STM on SRAM - GBA: Initialize uninitialized pristineRom and pristineRomSize members + - GBA Memory: Fix unaligned out-of-bounds ROM loads Misc: - Qt: Window size command line options are now supported - Qt: Increase usability of key mapper diff --git a/src/gba/memory.c b/src/gba/memory.c index 14a203d58..7f673dd5e 100644 --- a/src/gba/memory.c +++ b/src/gba/memory.c @@ -364,8 +364,8 @@ static void GBASetActiveRegion(struct ARMCore* cpu, uint32_t address) { LOAD_32(value, address & (SIZE_CART0 - 4), memory->rom); \ } else { \ GBALog(gba, GBA_LOG_GAME_ERROR, "Out of bounds ROM Load32: 0x%08X", address); \ - value = (address >> 1) & 0xFFFF; \ - value |= ((address + 2) >> 1) << 16; \ + value = ((address & ~3) >> 1) & 0xFFFF; \ + value |= (((address & ~3) + 2) >> 1) << 16; \ } #define LOAD_SRAM \