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fix bug with ALU operations and shift operands, where the shift operation could obliterate the carry flag

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also, misc shit
This commit is contained in:
StapleButter
2017-01-20 15:13:44 +01:00
parent 3e5e8f60c4
commit 7dba0121cb
7 changed files with 97 additions and 51 deletions
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34
ARM.cpp
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@ -290,6 +290,40 @@ s32 ARM::Execute(s32 cycles)
TriggerIRQ();
}
// R1=X R2=Y
//if (R[15]==0x02328E88)
// printf("hah! %04X %08X %08X %08X\n", Read16(R[0]+4), R[1], R[2],
// Read32(R[13]+0x18+16+4));
/*if (R[15]==0x02328DA6)
printf("derpo %08X %08X %08X %08X %08X %08X | %08X\n", R[0], R[1], R[2], R[3],
Read32(R[13]+0x40+0), Read32(R[13]+0x40+4), R[14]);*/
/*if (R[15]==0x02328C64)
printf("derpo %08X %08X %08X %08X %08X %08X %08X %08X | %08X | %04X %04X\n", R[0], R[1], R[2], R[3],
Read32(R[13]+0x40+0), Read32(R[13]+0x40+4), Read32(R[13]+0x40+8), Read32(R[13]+0x40+12), R[14],
Read16(R[0]+8), Read16(R[0]+12));*/
/*if (R[15]==0x023290B2)
printf("derpo %08X %08X %08X %08X | %08X\n", R[0], R[1], R[2], R[3],
R[14]);
if (R[15]==0x23290DE)
printf("!!!!! %08X %04X %04X %08X %08X %08X %08X\n", R[3], Read16(R[3]), Read16(R[3]+2), R[2],
Read32(0x023A6184+0), Read32(0x023A6184+4), Read32(0x023A6184+8));
if (R[15]==0x23290EA)
printf("!!!!! %08X %08X\n", R[2], R[3]);
if (R[15]==0x2328C80)
printf("STRING SIZE=%08X\n", R[0]);
if (R[15]==0x2328CC2)
printf("SUMLOL=%08X %08X %08X\n", R[4], R[7], R[0]);
if (R[15]==0x2328CC8)
printf("SUM=%08X %08X %08X\n", R[4], R[7], R[0]);
if (R[15]>=0x2328D6C && R[15]<=0x2328D9C)
printf("%08X CALC %08X %08X\n", R[15]-4, R[0], R[1]);
if (R[15]>=0x232CCCC && R[15]<=0x232CED4)
printf("%08X DIV %08X %08X %08X %08X carry %d\n", R[15]-4, R[0], R[1], R[2], R[3], (CPSR&0x20000000)?1:0);*/
// temp. debug cruft
addr = R[15] - (CPSR&0x20 ? 4:8);
cpsr = CPSR;