uh oh! it's getting further

(also CodeBlocks is fucking dumb)
This commit is contained in:
StapleButter 2017-01-16 04:47:37 +01:00
parent af05333290
commit 8c2f785a0f
9 changed files with 194 additions and 98 deletions

14
ARM.cpp
View File

@ -248,6 +248,8 @@ s32 ARM::Execute(s32 cycles)
while (cyclesrun < cycles)
{
//if(Num==1)printf("%08X %08X\n", R[15] - (CPSR&0x20 ? 4:8), NextInstr);
if (CPSR & 0x20) // THUMB
{
// prefetch
@ -315,6 +317,18 @@ s32 ARM::Execute(s32 cycles)
//printf("[%08X|%08X] IRQ RET VAL = %08X | %d\n", R[15], CPSR, Read32(0x0380FF7C), cyclesrun);
}
/*if (R[15] == 0x03802D54+2)
printf("%08X -> %08X\n", addr, R[15]);
// 37FE284(ARM) -> 37FE256 -> 37FECA0 !!!
if (R[15] == 0x037FE256+4)
printf("ROYAL %08X %s -> %08X %s | %08X\n",
addr, (cpsr&0x20)?"THUMB":"ARM", R[15], (CPSR&0x20)?"THUMB":"ARM",
R[0]);
if (R[15] == 0x37FE27C)
printf("NOTROYAL %08X %08X %08X/%08X\n", R[0], Read32(0x0380593C + 0x3C), R_SVC[2], Read32(0x0380593C-4));*/
// R0 = 0380593C
addr = R[15] - (CPSR&0x20 ? 4:8);
cpsr = CPSR;
}

View File

@ -106,11 +106,14 @@ s32 A_MSR_REG(ARM* cpu)
u32 oldpsr = *psr;
u32 mask = 0;
if (cpu->CurInstr & (1<<16)) mask |= 0x000000DF;
if (cpu->CurInstr & (1<<16)) mask |= 0x000000FF;
if (cpu->CurInstr & (1<<17)) mask |= 0x0000FF00;
if (cpu->CurInstr & (1<<18)) mask |= 0x00FF0000;
if (cpu->CurInstr & (1<<19)) mask |= 0xFF000000;
if (!(cpu->CurInstr & (1<<22)))
mask &= 0xFFFFFFDF;
if ((cpu->CPSR & 0x1F) == 0x10) mask &= 0xFFFFFF00;
u32 val = cpu->R[cpu->CurInstr & 0xF];
@ -190,6 +193,20 @@ s32 A_MRC(ARM* cpu)
s32 A_SVC(ARM* cpu)
{
u32 oldcpsr = cpu->CPSR;
cpu->CPSR &= ~0xFF;
cpu->CPSR |= 0xD3;
cpu->UpdateMode(oldcpsr, cpu->CPSR);
cpu->R_SVC[2] = oldcpsr;
cpu->R[14] = cpu->R[15] - 4;
cpu->JumpTo(cpu->ExceptionBase + 0x08);
return C_S(2) + C_N(1);
}
s32 T_SVC(ARM* cpu)
{
u32 oldcpsr = cpu->CPSR;
@ -201,9 +218,6 @@ s32 T_SVC(ARM* cpu)
cpu->R[14] = cpu->R[15] - 2;
cpu->JumpTo(cpu->ExceptionBase + 0x08);
//printf("ARM%d SWI %02X %08X,%08X,%08X LR=%08X/%08X\n", cpu->Num?7:9, (cpu->CurInstr & 0xFF), cpu->R[0], cpu->R[1], cpu->R[2], cpu->R[14], cpu->R_SVC[1]);
//printf("%08X\n", cpu->Read32(0x27FF814));
return C_S(2) + C_N(1);
}

View File

@ -1489,100 +1489,100 @@ INSTRFUNC_PROTO(ARMInstrTable[4096]) =
// 1111 0000 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0001 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0010 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0011 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0100 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0101 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0110 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 0111 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1000 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1001 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1010 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1011 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1100 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1101 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1110 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
// 1111 1111 0000
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK,
A_UNK, A_UNK, A_UNK, A_UNK
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC,
A_SVC, A_SVC, A_SVC, A_SVC
};
INSTRFUNC_PROTO(THUMBInstrTable[1024]) =

View File

@ -95,6 +95,21 @@ void Write(u32 id, u32 val)
return;
case 0x761:
//printf("inval data cache %08X\n", val);
return;
case 0x762:
printf("inval data cache SI\n");
return;
case 0x7A1:
printf("flush data cache %08X\n", val);
return;
case 0x7A2:
printf("flush data cache SI\n");
return;
case 0x910:
DTCMSetting = val;
UpdateDTCMSetting();
@ -104,6 +119,8 @@ void Write(u32 id, u32 val)
UpdateITCMSetting();
return;
}
//printf("unknown CP15 write op %03X %08X\n", id, val);
}
u32 Read(u32 id)
@ -136,6 +153,7 @@ u32 Read(u32 id)
return ITCMSetting;
}
printf("unknown CP15 read op %03X\n", id);
return 0;
}

View File

@ -98,6 +98,9 @@ void Reset()
}
// VRAM mapping shit.
// TODO eventually: work out priority orders in case of overlaps. there _are_ games that map overlapping banks.
void MapVRAM_AB(u32 bank, u8 cnt)
{
u8 oldcnt = VRAMCNT[bank];

49
NDS.cpp
View File

@ -25,6 +25,12 @@
#include "SPI.h"
#include "Wifi.h"
// derp
namespace SPI_Firmware
{
extern u8* Firmware;
}
namespace NDS
{
@ -94,11 +100,13 @@ void Init()
Reset();
}
// temp
void LoadROM()
{
FILE* f;
f = fopen("armwrestler.nds", "rb");
//f = fopen("rom/armwrestler.nds", "rb");
f = fopen("rom/zorp.nds", "rb");
u32 bootparams[8];
fseek(f, 0x20, SEEK_SET);
@ -211,6 +219,7 @@ void Reset()
// test
//LoadROM();
//LoadFirmware();
Running = true; // hax
}
@ -898,6 +907,7 @@ void ARM9Write8(u32 addr, u8 val)
void ARM9Write16(u32 addr, u16 val)
{
if (addr == ARM9->R[15]) printf("!!!!!!!!!!!!9999 %08X %04X\n", addr, val);
if (addr < ARM9ITCMSize)
{
*(u16*)&ARM9ITCM[addr & 0x7FFF] = val;
@ -1009,6 +1019,7 @@ void ARM9Write16(u32 addr, u16 val)
void ARM9Write32(u32 addr, u32 val)
{
if (addr == ARM9->R[15]) printf("!!!!!!!!!!!!9999 %08X %08X\n", addr, val);
if (addr < ARM9ITCMSize)
{
*(u32*)&ARM9ITCM[addr & 0x7FFF] = val;
@ -1061,24 +1072,7 @@ void ARM9Write32(u32 addr, u32 val)
return;
case 0x04000208: IME[0] = val & 0x1; return;
case 0x04000210: IE[0] = val; printf("%08X %08X %08X\n", ARM7->R[15], WRAMCnt, ARM7->CPSR);
/*{
FILE* f;
f = fopen("ARM7FIRM.bin", "wb");
for (u32 i = 0; i < 0x18000; i+=4)
{
u32 tmp = ARM7Read32(0x37F8000+i);
fwrite(&tmp, 4, 1, f);
}
fclose(f);
f = fopen("ARM9FIRM.bin", "wb");
for (u32 i = 0; i < 0x400000; i+=4)
{
u32 tmp = ARM9Read32(0x2000000+i);
fwrite(&tmp, 4, 1, f);
}
fclose(f);
}*/return;
case 0x04000210: IE[0] = val; return;
case 0x04000214: IF[0] &= ~val; return;
case 0x04000240:
@ -1263,8 +1257,12 @@ u32 ARM7Read32(u32 addr)
{
if (addr < 0x00004000)
{
if (ARM7->R[15] > 0x4000) {printf("BAD BIOS READ32 %08X FROM %08X | %08X\n", addr, ARM7->R[15], ARM7Read32(0x0380776C+12));return 0xFFFFFFFF;}
if (addr < 0x1204 && ARM7->R[15] >= 0x1204) printf("BAD BIOS READ32 %08X FROM %08X\n", addr, ARM7->R[15]);
if (ARM7->R[15] > 0x4000) {
printf("BAD BIOS READ32 %08X FROM %08X | %08X %08X\n", addr, ARM7->R[15], ARM7Read32(0x03807758+12), ARM7Read32(0x03807758+4));
Halt();
return 0xFFFFFFFF;
}
//if (addr < 0x1204 && ARM7->R[15] >= 0x1204) printf("BAD BIOS READ32 %08X FROM %08X\n", addr, ARM7->R[15]);
return *(u32*)&ARM7BIOS[addr];
}
@ -1405,6 +1403,7 @@ void ARM7Write8(u32 addr, u8 val)
void ARM7Write16(u32 addr, u16 val)
{
if (addr == ARM7->R[15]) printf("!!!!!!!!!!!!7777 %08X %04X\n", addr, val);
if (addr==0x3807764) printf("DERP! %04X %08X\n", val, ARM7->R[15]);
switch (addr & 0xFF800000)
{
@ -1429,7 +1428,7 @@ void ARM7Write16(u32 addr, u16 val)
case 0x04000100: Timers[4].Reload = val; return;
case 0x04000102: TimerStart(4, val); return;
case 0x04000104: Timers[5].Reload = val;
Timers[5].Reload = 0xFFE0;
//Timers[5].Reload = 0xFFE0;
// hax.
// firmware bootloader sets it to 0xFFFE, which doesn't give it enough time to do its IRQ handling shit before getting another IRQ
//printf("TIMER RELOAD=%04X FROM %08X, %08X %08X\n", val, ARM7->R[15], ARM7->R[4], ARM7->CPSR);
@ -1437,7 +1436,8 @@ void ARM7Write16(u32 addr, u16 val)
case 0x04000106: TimerStart(5, val); /*printf("TIMER CNT=%04X FROM %08X | %08X%08X - %08X%08X | %04X %04X %04X\n",
val, ARM7->R[15],
ARM7Read32(ARM7->R[4]+0x10), ARM7Read32(ARM7->R[4]+0xC), ARM7->R[1], ARM7->R[0],
Timers[4].Control, Timers[4].Counter, Timers[4].Reload);*/return;
Timers[4].Control, Timers[4].Counter, Timers[4].Reload);*/
/*printf("enable timer1 %08X\n", ARM7->R[15]);*/return;
case 0x04000108: Timers[6].Reload = val; return;
case 0x0400010A: TimerStart(6, val); return;
case 0x0400010C: Timers[7].Reload = val; return;
@ -1500,8 +1500,11 @@ void ARM7Write16(u32 addr, u16 val)
void ARM7Write32(u32 addr, u32 val)
{
if (addr == ARM7->R[15]) printf("!!!!!!!!!!!!7777 %08X %08X\n", addr, val);
if (addr==0x27FF890) printf("HAHA! %08X\n", val);
if (addr==0x3807764) printf("DERP! %08X %08X\n", val, ARM7->R[15]);
if (addr==0x380776C) printf("ZORP!!!!!!! %08X %08X %08X\n", val, ARM7->R[15], ARM7Read32(ARM7->R[13]+20));
if (addr==0x3807770) printf("ZAARP!!!!!!! %08X %08X\n", val, ARM7->R[15]);
switch (addr & 0xFF800000)
{
case 0x02000000:

41
SPI.cpp
View File

@ -35,6 +35,39 @@ u8 Data;
u8 StatusReg;
u32 Addr;
u16 CRC16(u8* data, u32 len, u32 start)
{
u16 blarg[8] = {0xC0C1, 0xC181, 0xC301, 0xC601, 0xCC01, 0xD801, 0xF001, 0xA001};
for (u32 i = 0; i < len; i++)
{
start ^= data[i];
for (int j = 0; j < 8; j++)
{
if (start & 0x1)
{
start >>= 1;
start ^= (blarg[j] << (7-j));
}
else
start >>= 1;
}
}
return start & 0xFFFF;
}
bool VerifyCRC16(u32 start, u32 offset, u32 len, u32 crcoffset)
{
u16 crc_stored = *(u16*)&Firmware[crcoffset];
u16 crc_calced = CRC16(&Firmware[offset], len, start);
//printf("%04X vs %04X\n", crc_stored, crc_calced);
return (crc_stored == crc_calced);
}
void Init()
{
Firmware = NULL;
@ -54,6 +87,14 @@ void Reset()
fclose(f);
// verify shit
printf("FW: WIFI CRC16 = %s\n", VerifyCRC16(0x0000, 0x2C, *(u16*)&Firmware[0x2C], 0x2A)?"GOOD":"BAD");
printf("FW: AP1 CRC16 = %s\n", VerifyCRC16(0x0000, 0x3FA00, 0xFE, 0x3FAFE)?"GOOD":"BAD");
printf("FW: AP2 CRC16 = %s\n", VerifyCRC16(0x0000, 0x3FB00, 0xFE, 0x3FBFE)?"GOOD":"BAD");
printf("FW: AP3 CRC16 = %s\n", VerifyCRC16(0x0000, 0x3FC00, 0xFE, 0x3FCFE)?"GOOD":"BAD");
printf("FW: USER0 CRC16 = %s\n", VerifyCRC16(0xFFFF, 0x3FE00, 0x70, 0x3FE72)?"GOOD":"BAD");
printf("FW: USER1 CRC16 = %s\n", VerifyCRC16(0xFFFF, 0x3FF00, 0x70, 0x3FF72)?"GOOD":"BAD");
Hold = 0;
CurCmd = 0;
Data = 0;

View File

@ -14,6 +14,9 @@
<Compiler>
<Add option="-g" />
</Compiler>
<Linker>
<Add library="C:/MinGW/lib/libgdi32.a" />
</Linker>
</Target>
<Target title="Release">
<Option output="bin/Release/melonDS" prefix_auto="1" extension_auto="1" />

View File

@ -10,7 +10,7 @@
1481161027 c:\documents\sources\melonds\types.h
1481230323 source:c:\documents\sources\melonds\nds.cpp
1484538142 source:c:\documents\sources\melonds\nds.cpp
<stdio.h>
<string.h>
"NDS.h"
@ -20,7 +20,7 @@
"SPI.h"
"Wifi.h"
1481167780 source:c:\documents\sources\melonds\arm.cpp
1484538131 source:c:\documents\sources\melonds\arm.cpp
<stdio.h>
"NDS.h"
"ARM.h"
@ -30,13 +30,13 @@
"types.h"
"NDS.h"
1481160977 c:\documents\sources\melonds\arm_instrtable.h
1484530962 c:\documents\sources\melonds\arm_instrtable.h
1480965273 c:\documents\sources\melonds\arminterpreter.h
"types.h"
"ARM.h"
1481124482 source:c:\documents\sources\melonds\arminterpreter.cpp
1484538181 source:c:\documents\sources\melonds\arminterpreter.cpp
<stdio.h>
"NDS.h"
"CP15.h"
@ -66,7 +66,7 @@
1481037554 c:\documents\sources\melonds\cp15.h
1481159008 source:c:\documents\sources\melonds\cp15.cpp
1484524458 source:c:\documents\sources\melonds\cp15.cpp
<stdio.h>
"NDS.h"
"ARM.h"
@ -74,12 +74,12 @@
1480957111 c:\documents\sources\melonds\spi.h
1481058591 source:c:\documents\sources\melonds\spi.cpp
1484524946 source:c:\documents\sources\melonds\spi.cpp
<stdio.h>
"NDS.h"
"SPI.h"
1481167730 source:c:\documents\sources\melonds\gpu2d.cpp
1484517476 source:c:\documents\sources\melonds\gpu2d.cpp
<stdio.h>
<string.h>
"NDS.h"