ShuriZma
/
desmume
mirror of https://github.com/TASEmulators/desmume.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Modified the GXSTAT register handling, this is still an ugly hack but some games (like Super Mario 64) don't freeze anymore.

This commit is contained in:
luigi__ 2008-12-04 21:58:24 +00:00
parent 5c457346db
commit bd1367a536
2 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
desmume/src/MMU.cpp
View File

@ -229,6 +229,8 @@ u32 MMU_ARM7_WAIT32[16]={
1, 1, 1, 1, 1, 1, 1, 1, 8, 8, 5, 1, 1, 1, 1, 1,
};
u32 gxIRQ = 0;
// VRAM mapping
u8 *LCDdst[10] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
const static u32 LCDdata[10][2]= {
@ -774,12 +776,14 @@ u32 FASTCALL _MMU_read32(u32 adr)
// This is hacked due to the only current 3D core
case 0x04000600: // Geometry Engine Status Register (R and R/W)
{
u32 gxstat = ( 2 |
/* u32 gxstat = ( 2 |
(MMU.fifos[proc].full<<24)|
(MMU.fifos[proc].half<<25)|
(MMU.fifos[proc].empty<<26)|
(MMU.fifos[proc].irq<<30)
);
);*/
u32 gxstat = (2 | (3 << 25) | (gxIRQ << 30));
return gxstat;
}
@ -2258,7 +2262,8 @@ void FASTCALL _MMU_write32(u32 adr, u32 val)
case 0x04000600: // Geometry Engine Status Register (R and R/W)
{
MMU.fifos[proc].irq = (val>>30) & 0x03;
//MMU.fifos[proc].irq = (val>>30) & 0x03;
gxIRQ = ((val >> 30) & 0x3);
return;
}
case REG_DISPA_WININ:

8
desmume/src/NDSSystem.cpp
View File

@ -41,6 +41,8 @@
NDSSystem nds;
extern u32 gxIRQ;
static u32
calc_CRC16( u32 start, const u8 *data, int count) {
int i,j;
@ -1549,8 +1551,10 @@ NDS_exec(s32 nb, BOOL force)
if(MMU.reg_IE[0]&(1<<21)) // IRQ21
{
if (MMU.fifos[0].irq==1) NDS_makeARM9Int(21);
if (MMU.fifos[0].irq==2) NDS_makeARM9Int(21);
// if (MMU.fifos[0].irq==1) NDS_makeARM9Int(21);
// if (MMU.fifos[0].irq==2) NDS_makeARM9Int(21);
if (gxIRQ == 1) NDS_makeARM9Int(21);
if (gxIRQ == 2) NDS_makeARM9Int(21);
}
if((MMU.reg_IF[0]&MMU.reg_IE[0]) && (MMU.reg_IME[0]))