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GBA BIOS: Fix undefined instruction HLE behavior

This commit is contained in:
Vicki Pfau 2020-02-10 18:03:48 -08:00
parent 1f4403243d
commit 6f9dbbc20d
3 changed files with 10 additions and 3 deletions
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1
CHANGES
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@ -1,6 +1,7 @@
0.8.1: (Future) 0.8.1: (Future)
Emulation fixes: Emulation fixes:
- GB Serialize: Fix timing bug loading channel 4 timing - GB Serialize: Fix timing bug loading channel 4 timing
- GBA BIOS: Fix undefined instruction HLE behavior
- GBA Memory: Misaligned SRAM writes are ignored - GBA Memory: Misaligned SRAM writes are ignored
- GBA Serialize: Fix serializing DMA transfer register - GBA Serialize: Fix serializing DMA transfer register
- GBA Serialize: Fix audio DMA timing deserialization - GBA Serialize: Fix audio DMA timing deserialization

7
src/gba/hle-bios.c
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@ -3,10 +3,10 @@
#include <mgba/internal/gba/memory.h> #include <mgba/internal/gba/memory.h>
const uint8_t hleBios[SIZE_BIOS] = { const uint8_t hleBios[SIZE_BIOS] = {
0x06, 0x00, 0x00, 0xea, 0xfe, 0xff, 0xff, 0xea, 0x0b, 0x00, 0x00, 0xea, 0x06, 0x00, 0x00, 0xea, 0x88, 0x00, 0x00, 0xea, 0x0b, 0x00, 0x00, 0xea,
0xfe, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea, 0x00, 0x00, 0xa0, 0xe1, 0xfe, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea, 0x00, 0x00, 0xa0, 0xe1,
0x2c, 0x00, 0x00, 0xea, 0xfe, 0xff, 0xff, 0xea, 0x02, 0x03, 0xa0, 0xe3, 0x2c, 0x00, 0x00, 0xea, 0xfe, 0xff, 0xff, 0xea, 0x02, 0x03, 0xa0, 0xe3,
0x03, 0x10, 0xd0, 0xe5, 0xea, 0x00, 0x51, 0xe3, 0xf8, 0x01, 0x9f, 0x15, 0x03, 0x10, 0xd0, 0xe5, 0xea, 0x00, 0x51, 0xe3, 0x04, 0x02, 0x9f, 0x15,
0x10, 0xff, 0x2f, 0xe1, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x29, 0xe1, 0x10, 0xff, 0x2f, 0xe1, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x29, 0xe1,
0x00, 0x00, 0x5d, 0xe3, 0x01, 0xd3, 0xa0, 0x03, 0x20, 0xd0, 0x4d, 0x02, 0x00, 0x00, 0x5d, 0xe3, 0x01, 0xd3, 0xa0, 0x03, 0x20, 0xd0, 0x4d, 0x02,
0x00, 0x58, 0x2d, 0xe9, 0x02, 0xb0, 0x5e, 0xe5, 0x9c, 0xc0, 0xa0, 0xe3, 0x00, 0x58, 0x2d, 0xe9, 0x02, 0xb0, 0x5e, 0xe5, 0x9c, 0xc0, 0xa0, 0xe3,
@ -49,5 +49,6 @@ const uint8_t hleBios[SIZE_BIOS] = {
0x03, 0xa0, 0xa0, 0xe1, 0x02, 0x00, 0x51, 0xe1, 0xf8, 0x07, 0xa1, 0xb8, 0x03, 0xa0, 0xa0, 0xe1, 0x02, 0x00, 0x51, 0xe1, 0xf8, 0x07, 0xa1, 0xb8,
0xfc, 0xff, 0xff, 0xba, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x51, 0xe1, 0xfc, 0xff, 0xff, 0xba, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x51, 0xe1,
0xf8, 0x07, 0xb0, 0xb8, 0xf8, 0x07, 0xa1, 0xb8, 0xfb, 0xff, 0xff, 0xba, 0xf8, 0x07, 0xb0, 0xb8, 0xf8, 0x07, 0xa1, 0xb8, 0xfb, 0xff, 0xff, 0xba,
0xf0, 0x87, 0xbd, 0xe8, 0xc0, 0x00, 0x00, 0x02 0xf0, 0x87, 0xbd, 0xe8, 0x04, 0xf0, 0x5e, 0xe2, 0x00, 0x00, 0x00, 0x00,
0x04, 0xe0, 0xa0, 0x03, 0xc0, 0x00, 0x00, 0x02
}; };

5
src/gba/hle-bios.s
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@ -187,4 +187,9 @@ blt 0b
2: 2:
ldmfd sp!, {r4-r10, pc} ldmfd sp!, {r4-r10, pc}
undefBase:
subs pc, lr, #4
.word 0
.word 0x03A0E004
.ltorg .ltorg