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melonDS
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make the AR engine use the correct bus funcs based on DS/DSi mode

This commit is contained in:
Arisotura 2020-08-24 19:55:20 +02:00
parent 13521211d2
commit 39af95e869
1 changed files with 52 additions and 25 deletions
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77
src/AREngine.cpp
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@ -19,6 +19,7 @@
#include <stdio.h>
#include <string.h>
#include "NDS.h"
#include "DSi.h"
#include "AREngine.h"
@ -28,6 +29,13 @@ namespace AREngine
// AR code file - frontend is responsible for managing this
ARCodeFile* CodeFile;
u8 (*BusRead8)(u32 addr);
u16 (*BusRead16)(u32 addr);
u32 (*BusRead32)(u32 addr);
void (*BusWrite8)(u32 addr, u8 val);
void (*BusWrite16)(u32 addr, u16 val);
void (*BusWrite32)(u32 addr, u32 val);
bool Init()
{
@ -43,6 +51,25 @@ void DeInit()
void Reset()
{
CodeFile = nullptr;
if (NDS::ConsoleType == 1)
{
BusRead8 = DSi::ARM7Read8;
BusRead16 = DSi::ARM7Read16;
BusRead32 = DSi::ARM7Read32;
BusWrite8 = DSi::ARM7Write8;
BusWrite16 = DSi::ARM7Write16;
BusWrite32 = DSi::ARM7Write32;
}
else
{
BusRead8 = NDS::ARM7Read8;
BusRead16 = NDS::ARM7Read16;
BusRead32 = NDS::ARM7Read32;
BusWrite8 = NDS::ARM7Write8;
BusWrite16 = NDS::ARM7Write16;
BusWrite32 = NDS::ARM7Write32;
}
}
@ -102,15 +129,15 @@ void RunCheat(ARCode& arcode)
switch (op)
{
case16(0x00): // 32-bit write
NDS::ARM7Write32((a & 0x0FFFFFFF) + offset, b);
BusWrite32((a & 0x0FFFFFFF) + offset, b);
break;
case16(0x10): // 16-bit write
NDS::ARM7Write16((a & 0x0FFFFFFF) + offset, b & 0xFFFF);
BusWrite16((a & 0x0FFFFFFF) + offset, b & 0xFFFF);
break;
case16(0x20): // 8-bit write
NDS::ARM7Write8((a & 0x0FFFFFFF) + offset, b & 0xFF);
BusWrite8((a & 0x0FFFFFFF) + offset, b & 0xFF);
break;
case16(0x30): // IF b > u32[a]
@ -118,7 +145,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u32 chk = NDS::ARM7Read32(a & 0x0FFFFFFF);
u32 chk = BusRead32(a & 0x0FFFFFFF);
cond = (b > chk) ? 1:0;
}
@ -129,7 +156,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u32 chk = NDS::ARM7Read32(a & 0x0FFFFFFF);
u32 chk = BusRead32(a & 0x0FFFFFFF);
cond = (b < chk) ? 1:0;
}
@ -140,7 +167,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u32 chk = NDS::ARM7Read32(a & 0x0FFFFFFF);
u32 chk = BusRead32(a & 0x0FFFFFFF);
cond = (b == chk) ? 1:0;
}
@ -151,7 +178,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u32 chk = NDS::ARM7Read32(a & 0x0FFFFFFF);
u32 chk = BusRead32(a & 0x0FFFFFFF);
cond = (b != chk) ? 1:0;
}
@ -162,7 +189,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u16 val = NDS::ARM7Read16(a & 0x0FFFFFFF);
u16 val = BusRead16(a & 0x0FFFFFFF);
u16 chk = ~(b >> 16);
chk &= val;
@ -175,7 +202,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u16 val = NDS::ARM7Read16(a & 0x0FFFFFFF);
u16 val = BusRead16(a & 0x0FFFFFFF);
u16 chk = ~(b >> 16);
chk &= val;
@ -188,7 +215,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u16 val = NDS::ARM7Read16(a & 0x0FFFFFFF);
u16 val = BusRead16(a & 0x0FFFFFFF);
u16 chk = ~(b >> 16);
chk &= val;
@ -201,7 +228,7 @@ void RunCheat(ARCode& arcode)
condstack <<= 1;
condstack |= cond;
u16 val = NDS::ARM7Read16(a & 0x0FFFFFFF);
u16 val = BusRead16(a & 0x0FFFFFFF);
u16 chk = ~(b >> 16);
chk &= val;
@ -210,7 +237,7 @@ void RunCheat(ARCode& arcode)
break;
case16(0xB0): // offset = u32[a + offset]
offset = NDS::ARM7Read32((a & 0x0FFFFFFF) + offset);
offset = BusRead32((a & 0x0FFFFFFF) + offset);
break;
case 0xC0: // FOR 0..b
@ -247,7 +274,7 @@ void RunCheat(ARCode& arcode)
break;
case 0xC6: // u32[b] = offset
NDS::ARM7Write32(b, offset);
BusWrite32(b, offset);
break;
case 0xD0: // ENDIF
@ -296,30 +323,30 @@ void RunCheat(ARCode& arcode)
break;
case 0xD6: // u32[b+offset] = datareg / offset += 4
NDS::ARM7Write32(b + offset, datareg);
BusWrite32(b + offset, datareg);
offset += 4;
break;
case 0xD7: // u16[b+offset] = datareg / offset += 2
NDS::ARM7Write16(b + offset, datareg & 0xFFFF);
BusWrite16(b + offset, datareg & 0xFFFF);
offset += 2;
break;
case 0xD8: // u8[b+offset] = datareg / offset += 1
NDS::ARM7Write8(b + offset, datareg & 0xFF);
BusWrite8(b + offset, datareg & 0xFF);
offset += 1;
break;
case 0xD9: // datareg = u32[b+offset]
datareg = NDS::ARM7Read32(b + offset);
datareg = BusRead32(b + offset);
break;
case 0xDA: // datareg = u16[b+offset]
datareg = NDS::ARM7Read16(b + offset);
datareg = BusRead16(b + offset);
break;
case 0xDB: // datareg = u8[b+offset]
datareg = NDS::ARM7Read8(b + offset);
datareg = BusRead8(b + offset);
break;
case 0xDC: // offset += b
@ -334,8 +361,8 @@ void RunCheat(ARCode& arcode)
u32 bytesleft = b;
while (bytesleft >= 8)
{
NDS::ARM7Write32(dstaddr, *code++); dstaddr += 4;
NDS::ARM7Write32(dstaddr, *code++); dstaddr += 4;
BusWrite32(dstaddr, *code++); dstaddr += 4;
BusWrite32(dstaddr, *code++); dstaddr += 4;
bytesleft -= 8;
}
if (bytesleft > 0)
@ -344,13 +371,13 @@ void RunCheat(ARCode& arcode)
code += 2;
if (bytesleft >= 4)
{
NDS::ARM7Write32(dstaddr, *(u32*)leftover); dstaddr += 4;
BusWrite32(dstaddr, *(u32*)leftover); dstaddr += 4;
leftover += 4;
bytesleft -= 4;
}
while (bytesleft > 0)
{
NDS::ARM7Write8(dstaddr, *leftover++); dstaddr++;
BusWrite8(dstaddr, *leftover++); dstaddr++;
bytesleft--;
}
}
@ -366,14 +393,14 @@ void RunCheat(ARCode& arcode)
u32 bytesleft = b;
while (bytesleft >= 4)
{
NDS::ARM7Write32(dstaddr, NDS::ARM7Read32(srcaddr));
BusWrite32(dstaddr, BusRead32(srcaddr));
srcaddr += 4;
dstaddr += 4;
bytesleft -= 4;
}
while (bytesleft > 0)
{
NDS::ARM7Write8(dstaddr, NDS::ARM7Read8(srcaddr));
BusWrite8(dstaddr, BusRead8(srcaddr));
srcaddr++;
dstaddr++;
bytesleft--;