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

begin PU work

This commit is contained in:
StapleButter 2018-12-04 18:32:19 +01:00
parent 9ebcb5f143
commit 0b1c2f9691
3 changed files with 147 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/ARM.h
View File

@ -23,7 +23,6 @@
#include "types.h"
#include "NDS.h"
#include "CP15.h"
#define ROR(x, n) (((x) >> (n)) | ((x) << (32-(n))))
@ -235,6 +234,15 @@ public:
u32 ITCMSize;
u8 DTCM[0x4000];
u32 DTCMBase, DTCMSize;
u32 PU_CodeCacheable;
u32 PU_DataCacheable;
u32 PU_DataCacheWrite;
u32 PU_CodeRW;
u32 PU_DataRW;
u32 PU_Region[8];
};
class ARMv4 : public ARM

1
src/ARMInterpreter.cpp
View File

@ -18,7 +18,6 @@
#include <stdio.h>
#include "NDS.h"
#include "CP15.h"
#include "ARMInterpreter.h"
#include "ARMInterpreter_ALU.h"
#include "ARMInterpreter_Branch.h"

138
src/CP15.cpp
View File

@ -104,6 +104,84 @@ void ARMv5::CP15Write(u32 id, u32 val)
return;
case 0x200: // data cacheable
PU_DataCacheable = val;
printf("PU: DataCacheable=%08X\n", val);
return;
case 0x201: // code cacheable
PU_CodeCacheable = val;
printf("PU: CodeCacheable=%08X\n", val);
return;
case 0x300: // data cache write-buffer
PU_DataCacheWrite = val;
printf("PU: DataCacheWrite=%08X\n", val);
return;
case 0x500: // legacy data permissions
PU_DataRW = 0;
PU_DataRW |= (val & 0x0003);
PU_DataRW |= ((val & 0x000C) << 2);
PU_DataRW |= ((val & 0x0030) << 4);
PU_DataRW |= ((val & 0x00C0) << 6);
PU_DataRW |= ((val & 0x0300) << 8);
PU_DataRW |= ((val & 0x0C00) << 10);
PU_DataRW |= ((val & 0x3000) << 12);
PU_DataRW |= ((val & 0xC000) << 14);
printf("PU: DataRW=%08X (legacy %08X)\n", PU_DataRW, val);
return;
case 0x501: // legacy code permissions
PU_CodeRW = 0;
PU_CodeRW |= (val & 0x0003);
PU_CodeRW |= ((val & 0x000C) << 2);
PU_CodeRW |= ((val & 0x0030) << 4);
PU_CodeRW |= ((val & 0x00C0) << 6);
PU_CodeRW |= ((val & 0x0300) << 8);
PU_CodeRW |= ((val & 0x0C00) << 10);
PU_CodeRW |= ((val & 0x3000) << 12);
PU_CodeRW |= ((val & 0xC000) << 14);
printf("PU: CodeRW=%08X (legacy %08X)\n", PU_CodeRW, val);
return;
case 0x502: // data permissions
PU_DataRW = val;
printf("PU: DataRW=%08X\n", PU_DataRW);
return;
case 0x503: // code permissions
PU_CodeRW = val;
printf("PU: CodeRW=%08X\n", PU_CodeRW);
return;
case 0x600:
case 0x601:
case 0x610:
case 0x611:
case 0x620:
case 0x621:
case 0x630:
case 0x631:
case 0x640:
case 0x641:
case 0x650:
case 0x651:
case 0x660:
case 0x661:
case 0x670:
case 0x671:
PU_Region[(id >> 4) & 0xF] = val;
printf("PU: region %d = %08X : ", (id>>4)&0xF, val);
printf("%s, ", val&1 ? "enabled":"disabled");
printf("%08X-", val&0xFFFFF000);
printf("%08X\n", (val&0xFFFFF000)+(2<<((val&0x3E)>>1)));
return;
case 0x704:
case 0x782:
Halt(1);
@ -129,6 +207,7 @@ void ARMv5::CP15Write(u32 id, u32 val)
DTCMSetting = val;
UpdateDTCMSetting();
return;
case 0x911:
ITCMSetting = val;
UpdateITCMSetting();
@ -164,6 +243,65 @@ u32 ARMv5::CP15Read(u32 id)
return CP15Control;
case 0x200:
return PU_DataCacheable;
case 0x201:
return PU_CodeCacheable;
case 0x300:
return PU_DataCacheWrite;
case 0x500:
{
u32 ret = 0;
ret |= (PU_DataRW & 0x00000003);
ret |= ((PU_DataRW & 0x00000030) >> 2);
ret |= ((PU_DataRW & 0x00000300) >> 4);
ret |= ((PU_DataRW & 0x00003000) >> 6);
ret |= ((PU_DataRW & 0x00030000) >> 8);
ret |= ((PU_DataRW & 0x00300000) >> 10);
ret |= ((PU_DataRW & 0x03000000) >> 12);
ret |= ((PU_DataRW & 0x30000000) >> 14);
return ret;
}
case 0x501:
{
u32 ret = 0;
ret |= (PU_CodeRW & 0x00000003);
ret |= ((PU_CodeRW & 0x00000030) >> 2);
ret |= ((PU_CodeRW & 0x00000300) >> 4);
ret |= ((PU_CodeRW & 0x00003000) >> 6);
ret |= ((PU_CodeRW & 0x00030000) >> 8);
ret |= ((PU_CodeRW & 0x00300000) >> 10);
ret |= ((PU_CodeRW & 0x03000000) >> 12);
ret |= ((PU_CodeRW & 0x30000000) >> 14);
return ret;
}
case 0x502:
return PU_DataRW;
case 0x503:
return PU_CodeRW;
case 0x600:
case 0x601:
case 0x610:
case 0x611:
case 0x620:
case 0x621:
case 0x630:
case 0x631:
case 0x640:
case 0x641:
case 0x650:
case 0x651:
case 0x660:
case 0x661:
case 0x670:
case 0x671:
return PU_Region[(id >> 4) & 0xF];
case 0x910:
return DTCMSetting;
case 0x911: