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

-Added support for Backup Memory. Memory type detection still needs to be added. I'm not sure what's the best way of handling that.

This commit is contained in:
cyberwarriorx 2006-10-11 21:52:43 +00:00
parent 79c3011b19
commit 0b402eee65
1 changed files with 32 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
desmume/src/MMU.c
View File

@ -263,9 +263,12 @@ void MMUInit(void) {
for(i = 0;i < 16;i++)
FIFOInit(MMU.fifos + i);
fw_init(&MMU.spi7.fw); /* init fw device */
fw_alloc(&MMU.spi7.fw, NDS_FW_SIZE_V1);
mc_init(&MMU.spi7.fw, MC_TYPE_FLASH); /* init fw device */
mc_alloc(&MMU.spi7.fw, NDS_FW_SIZE_V1);
// Init Backup Memory device, this should really be done when the rom is loaded
mc_init(&MMU.spi7.bupmem, MC_TYPE_EEPROM2);
mc_alloc(&MMU.spi7.bupmem, 65536); // For now we're use 512Kbit support. Eventually this should be detected when rom is loaded
}
void MMUDeInit(void) {
@ -276,6 +279,8 @@ void MMUDeInit(void) {
u16 SPI_CNT = 0;
u16 SPI_CMD = 0;
u16 AUX_SPI_CNT = 0;
u16 AUX_SPI_CMD = 0;
u32 rom_mask = 0;
@ -684,7 +689,7 @@ void FASTCALL MMU_write8(u32 proc, u32 adr, u8 val)
}
break;
#ifdef LOG_CARD
#ifdef LOG_CARD
case 0x040001A0 : /* TODO (clear): ??? */
case 0x040001A1 :
case 0x040001A2 :
@ -696,7 +701,7 @@ void FASTCALL MMU_write8(u32 proc, u32 adr, u8 val)
case 0x040001AD :
case 0x040001AE :
case 0x040001AF :
LOG("%08X : %02X\r\n", adr, val);
LOG("%08X : %02X\r\n", adr, val);
#endif
default :
@ -775,6 +780,24 @@ void FASTCALL MMU_write16(u32 proc, u32 adr, u16 val)
}
((u16 *)(MMU.MMU_MEM[proc][0x40]))[0x304>>1] = val;
return;
case CARD_CR1:
MEM_16(MMU.MMU_MEM[proc], CARD_CR1) = val;
AUX_SPI_CNT = val;
if (val == 0)
mc_reset_com(&MMU.spi7.bupmem); /* reset backup memory device communication */
return;
case CARD_EEPDATA:
if(val!=0)
{
AUX_SPI_CMD = val & 0xFF;
}
MEM_16(MMU.MMU_MEM[proc], CARD_EEPDATA) = bm_transfer(&MMU.spi7.bupmem, val); /* transfer data to backup memory chip and receive back */
return;
case REG_SPICNT :
if(proc == ARMCPU_ARM7)
{
@ -782,9 +805,8 @@ void FASTCALL MMU_write16(u32 proc, u32 adr, u16 val)
//MMU.spi7.fw.com == 0; /* reset fw device communication */
fw_reset_com(&MMU.spi7.fw); /* reset fw device communication */
}
mc_reset_com(&MMU.spi7.fw); /* reset fw device communication */
}
MEM_16(MMU.MMU_MEM[proc], REG_SPICNT) = val;
return;
@ -831,7 +853,7 @@ void FASTCALL MMU_write16(u32 proc, u32 adr, u16 val)
break;
}
val = (nds.touchY>>5);
partie = 1;
partie = 1;
break;
}
val = ((nds.touchY<<3)&0x7FF);
@ -1868,7 +1890,7 @@ void FASTCALL MMU_write32(u32 proc, u32 adr, u32 val)
if(MEM_8(MMU.MMU_MEM[proc], CARD_COMMAND) == 0xB7)
{
MMU.dscard[proc].adress = (MEM_8(MMU.MMU_MEM[proc], CARD_COMMAND+1) << 24) | (MEM_8(MMU.MMU_MEM[proc], CARD_COMMAND+2) << 16) | (MEM_8(MMU.MMU_MEM[proc], CARD_COMMAND+3) << 8) | (MEM_8(MMU.MMU_MEM[proc], CARD_COMMAND+4));
MMU.dscard[proc].transfer_count = 0x80;// * ((val>>24)&7));
MMU.dscard[proc].transfer_count = 0x80;// * ((val>>24)&7));
}
else
{