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core: 

- add 8bit read divcnt register(fix bug #3015135);
This commit is contained in:
mtabachenko 2010-07-04 11:20:31 +00:00
parent d7e32d8e8f
commit 54c80ae16e
1 changed files with 27 additions and 10 deletions
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37
desmume/src/MMU.cpp
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@ -1049,7 +1049,7 @@ static void execdiv() {
mod = num;
// the DIV0 flag in DIVCNT is set only if the full 64bit DIV_DENOM value is zero, even in 32bit mode
if ((s64)T1ReadQuad(MMU.MMU_MEM[ARMCPU_ARM9][0x40], 0x298) == 0)
if ((u64)T1ReadQuad(MMU.MMU_MEM[ARMCPU_ARM9][0x40], 0x298) == 0)
MMU_new.div.div0 = 1;
}
else
@ -2204,9 +2204,16 @@ void FASTCALL _MMU_ARM9_write08(u32 adr, u8 val)
switch(adr)
{
case REG_SQRTCNT: printf("ERROR 8bit SQRTCNT WRITE\n"); return;
case REG_SQRTCNT+1: printf("ERROR 8bit SQRTCNT WRITE\n"); return;
case REG_SQRTCNT+2: printf("ERROR 8bit SQRTCNT WRITE\n"); return;
case REG_SQRTCNT+3: printf("ERROR 8bit SQRTCNT WRITE\n"); return;
case REG_SQRTCNT+1: printf("ERROR 8bit SQRTCNT1 WRITE\n"); return;
case REG_SQRTCNT+2: printf("ERROR 8bit SQRTCNT2 WRITE\n"); return;
case REG_SQRTCNT+3: printf("ERROR 8bit SQRTCNT3 WRITE\n"); return;
#if 0
case REG_DIVCNT: printf("ERROR 8bit DIVCNT WRITE\n"); return;
case REG_DIVCNT+1: printf("ERROR 8bit DIVCNT1 WRITE\n"); return;
case REG_DIVCNT+2: printf("ERROR 8bit DIVCNT2 WRITE\n"); return;
case REG_DIVCNT+3: printf("ERROR 8bit DIVCNT3 WRITE\n"); return;
#endif
//fog table: only write bottom 7 bits
case eng_3D_FOG_TABLE+0x00: case eng_3D_FOG_TABLE+0x01: case eng_3D_FOG_TABLE+0x02: case eng_3D_FOG_TABLE+0x03:
@ -3334,14 +3341,24 @@ u8 FASTCALL _MMU_ARM9_read08(u32 adr)
break;
case REG_DISPx_VCOUNT+1:
break;
#if 0
case REG_SQRTCNT: printf("ERROR 8bit SQRTCNT READ\n"); return 0;
case REG_SQRTCNT+1: printf("ERROR 8bit SQRTCNT READ\n"); return 0;
case REG_SQRTCNT+2: printf("ERROR 8bit SQRTCNT READ\n"); return 0;
case REG_SQRTCNT+3: printf("ERROR 8bit SQRTCNT READ\n"); return 0;
case REG_SQRTCNT+1: printf("ERROR 8bit SQRTCNT1 READ\n"); return 0;//(MMU_new.sqrt.read16() & 0xFF00)>>8;
#else
case REG_SQRTCNT: return (MMU_new.sqrt.read16() & 0xFF);
case REG_SQRTCNT+1: return ((MMU_new.sqrt.read16()>>8) & 0xFF);
#endif
case REG_SQRTCNT+2: printf("ERROR 8bit SQRTCNT2 READ\n"); return 0;
case REG_SQRTCNT+3: printf("ERROR 8bit SQRTCNT3 READ\n"); return 0;
#if 0
case REG_DIVCNT: printf("ERROR 8bit DIVCNT READ\n"); return 0;
case REG_DIVCNT+1: printf("ERROR 8bit DIVCNT READ\n"); return 0;
case REG_DIVCNT+2: printf("ERROR 8bit DIVCNT READ\n"); return 0;
case REG_DIVCNT+3: printf("ERROR 8bit DIVCNT READ\n"); return 0;
case REG_DIVCNT+1: printf("ERROR 8bit DIVCNT1 READ\n"); return 0;
#else
case REG_DIVCNT: return (MMU_new.div.read16() & 0xFF);
case REG_DIVCNT+1: return ((MMU_new.div.read16()>>8) & 0xFF);
#endif
case REG_DIVCNT+2: printf("ERROR 8bit DIVCNT2 READ\n"); return 0;
case REG_DIVCNT+3: printf("ERROR 8bit DIVCNT3 READ\n"); return 0;
//fog table: write only
case eng_3D_FOG_TABLE+0x00: case eng_3D_FOG_TABLE+0x01: case eng_3D_FOG_TABLE+0x02: case eng_3D_FOG_TABLE+0x03: