Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-22 21:58:57 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Fixed an ARM CPU core bug with pre-indexed addressing opcodes, that was preventing Poizone to boot [Tim Schuerewegen]

Browse Source 
new working game
----------------------
Poizone [Tim Schuerewegen]
This commit is contained in:
Angelo Salese 2010-12-28 23:24:53 +00:00
parent 96ce772581
commit 7ae0a6898e
1 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/emu/cpu/arm/arm.c
View File

@ -604,11 +604,17 @@ static void HandleMemSingle( ARM_REGS* cpustate, UINT32 insn )
/* Pre-indexed addressing */
if (insn & INSN_SDT_U)
{
rnv = (GetRegister(cpustate, rn) + off);
if (rn != eR15)
rnv = (GetRegister(cpustate, rn) + off);
else
rnv = (R15 & ADDRESS_MASK) + off;
}
else
{
rnv = (GetRegister(cpustate, rn) - off);
if (rn != eR15)
rnv = (GetRegister(cpustate, rn) - off);
else
rnv = (R15 & ADDRESS_MASK) - off;
}
if (insn & INSN_SDT_W)
@ -619,7 +625,7 @@ static void HandleMemSingle( ARM_REGS* cpustate, UINT32 insn )
}
else if (rn == eR15)
{
rnv = (rnv & ADDRESS_MASK) + 8;
rnv = rnv + 8;
}
}
else