christ. CodeBlocks is retarded.

also, lots of crap. I lost track of it.

ARM.cpp

@@ -57,6 +57,7 @@ ARM::~ARM()
 void ARM::Reset()
 {
     Cycles = 0;
+    Halted = 0;
 
     for (int i = 0; i < 16; i++)
         R[i] = 0;
@@ -73,7 +74,10 @@ void ARM::JumpTo(u32 addr, bool restorecpsr)
 {
     if (restorecpsr)
     {
+        //if (Num==1 && (CPSR&0x1F)==0x12)
+        //    printf("return from IRQ %08X -> %08X, SP=%08X, %08X\n", R[15], addr, R[13], Read32(0x0380FF7C));
         RestoreCPSR();
+
         if (CPSR & 0x20)    addr |= 0x1;
         else                addr &= ~0x1;
     }
@@ -81,15 +85,15 @@ void ARM::JumpTo(u32 addr, bool restorecpsr)
     if (addr & 0x1)
     {
         addr &= ~0x1;
-        NextInstr = Read16(addr);
         R[15] = addr+2;
+        NextInstr = Read16(addr);
         CPSR |= 0x20;
     }
     else
     {
         addr &= ~0x3;
-        NextInstr = Read32(addr);
         R[15] = addr+4;
+        NextInstr = Read32(addr);
         CPSR &= ~0x20;
     }
 }
@@ -209,6 +213,15 @@ void ARM::TriggerIRQ()
     if ((CPSR & 0x80) && (!Halted))
         return;
 
+    /*if (Num==1)
+    {
+        printf("ARM7 IRQ %08X %08X\n", R[15], R_IRQ[0]);
+        if (NDS::Timers[5].Event)
+        {
+            printf("Timer1 %d %d\n", NDS::Timers[5].Counter, NDS::Timers[5].Event->Delay);
+        }
+    }*/
+
     u32 oldcpsr = CPSR;
     CPSR &= ~0xFF;
     CPSR |= 0xD2;
@@ -230,6 +243,8 @@ s32 ARM::Execute(s32 cycles)
     }
 
     s32 cyclesrun = 0;
+    u32 addr = R[15] - (CPSR&0x20 ? 4:8);
+    u32 cpsr = CPSR;
 
     while (cyclesrun < cycles)
     {
@@ -280,6 +295,28 @@ s32 ARM::Execute(s32 cycles)
             if (NDS::IME[Num]&1)
                 TriggerIRQ();
         }
+
+        //if (R[15]==0x2DD0)
+        //    printf("-> %08X %08X\n", R[13], Read32(0x0380FF7C));
+
+        //if (R[15]==0x37FEC7A)
+         //   printf("!!!!!!!! %08X %08X\n", R[14], CPSR);
+
+        //if (R[15] == 0x037FF102+4 && CPSR&0x20) printf("!!!!! %08X -> %08X, %08X -> %08X, %08X, %08X/%08X\n",
+        //                                               addr, R[15], cpsr, CPSR, CurInstr, R_SVC[2], R_IRQ[2]);
+
+        if (addr >= 0x37FAD68 && addr < 0x37FAE40)
+        {
+            if (addr==0x037FAE2A) debug=2;
+            //printf("!!! @ %08X %08X / %08X %08X/%08X\n", addr, R[15], Read32(0x03FFFFFC), Read32(0x04000210), Read32(0x04000214));
+        }
+        else if (debug==2)// && (CPSR&0x1F)==0x12)
+        {
+            //printf("[%08X|%08X] IRQ RET VAL = %08X | %d\n", R[15], CPSR, Read32(0x0380FF7C), cyclesrun);
+        }
+
+        addr = R[15] - (CPSR&0x20 ? 4:8);
+        cpsr = CPSR;
     }
 
     return cyclesrun;

ARM.h

@@ -182,6 +182,8 @@ public:
     u32 ExceptionBase;
 
     static u32 ConditionTable[16];
+
+    u32 debug;
 };
 
 #endif // ARM_H

ARMInterpreter.cpp

@@ -201,7 +201,8 @@ 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\n", cpu->Num?7:9, (cpu->CurInstr & 0xFF), cpu->R[0], cpu->R[1], cpu->R[2], cpu->R[14]);
+    //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);
 }

ARMInterpreter_ALU.cpp

@@ -16,6 +16,7 @@
     with melonDS. If not, see http://www.gnu.org/licenses/.
 */
 
+#include <stdio.h>
 #include "ARM.h"
 
 
@@ -34,12 +35,12 @@ namespace ARMInterpreter
     x <<= s;
 
 #define LSR_IMM(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) x = 0; \
-    x >>= s;
+    else        x >>= s;
 
 #define ASR_IMM(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) x = ((s32)x) >> 31; \
-    x = ((s32)x) >> s;
+    else        x = ((s32)x) >> s;
 
 #define ROR_IMM(x, s) \
     if (s == 0) \
@@ -59,20 +60,29 @@ namespace ARMInterpreter
     }
 
 #define LSR_IMM_S(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) { \
-    cpu->SetC(x & (1<<(s-1))); \
+        cpu->SetC(x & (1<<31)); \
-    x >>= s;
+        x = 0; \
+    } else { \
+        cpu->SetC(x & (1<<(s-1))); \
+        x >>= s; \
+    }
 
 #define ASR_IMM_S(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) { \
-    cpu->SetC(x & (1<<(s-1))); \
+        cpu->SetC(x & (1<<31)); \
-    x = ((s32)x) >> s;
+        x = ((s32)x) >> 31; \
+    } else { \
+        cpu->SetC(x & (1<<(s-1))); \
+        x = ((s32)x) >> s; \
+    }
 
 #define ROR_IMM_S(x, s) \
     if (s == 0) \
     { \
-        cpu->SetC(x & 1); \
+        u32 newc = (x & 1); \
         x = (x >> 1) | ((cpu->CPSR & 0x20000000) << 2); \
+        cpu->SetC(newc); \
     } \
     else \
     { \
@@ -81,32 +91,35 @@ namespace ARMInterpreter
     }
 
 #define LSL_REG(x, s) \
-    x <<= s;
+    if (s > 31) x = 0; \
+    else        x <<= s;
 
 #define LSR_REG(x, s) \
-    x >>= s;
+    if (s > 31) x = 0; \
+    else        x >>= s;
 
 #define ASR_REG(x, s) \
-    x = ((s32)x) >> s;
+    if (s > 31) x = ((s32)x) >> 31; \
+    else        x = ((s32)x) >> s;
 
 #define ROR_REG(x, s) \
-    x = ROR(x, s);
+    x = ROR(x, (s&0x1F));
 
 #define LSL_REG_S(x, s) \
-    if (s > 0) cpu->SetC(x & (1<<(32-s))); \
+    if (s > 31)     { cpu->SetC(x & (1<<0));      x = 0; } \
-    x <<= s;
+    else if (s > 0) { cpu->SetC(x & (1<<(32-s))); x <<= s; }
 
 #define LSR_REG_S(x, s) \
-    if (s > 0) cpu->SetC(x & (1<<(s-1))); \
+    if (s > 31)     { cpu->SetC(x & (1<<31));    x = 0; } \
-    x >>= s;
+    else if (s > 0) { cpu->SetC(x & (1<<(s-1))); x >>= s; }
 
 #define ASR_REG_S(x, s) \
-    if (s > 0) cpu->SetC(x & (1<<(s-1))); \
+    if (s > 31)     { cpu->SetC(x & (1<<31));    x = ((s32)x) >> 31; } \
-    x = ((s32)x) >> s;
+    else if (s > 0) { cpu->SetC(x & (1<<(s-1))); x = ((s32)x) >> s; }
 
 #define ROR_REG_S(x, s) \
     if (s > 0) cpu->SetC(x & (1<<(s-1))); \
-    x = ROR(x, s);
+    x = ROR(x, (s&0x1F));
 
 
 
@@ -120,6 +133,7 @@ namespace ARMInterpreter
 
 #define A_CALC_OP2_REG_SHIFT_REG(shiftop) \
     u32 b = cpu->R[cpu->CurInstr&0xF]; \
+    if ((cpu->CurInstr&0xF)==15) b += 4; \
     shiftop(b, cpu->R[(cpu->CurInstr>>8)&0xF]);
 
 
@@ -300,7 +314,7 @@ A_IMPLEMENT_ALU_OP(AND)
 
 #define A_EOR(c) \
     u32 a = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    u32 res = a | b; \
+    u32 res = a ^ b; \
     if (((cpu->CurInstr>>12) & 0xF) == 15) \
     { \
         cpu->JumpTo(res); \
@@ -494,7 +508,7 @@ A_IMPLEMENT_ALU_OP(ADC)
     u32 res = res_tmp - carry; \
     cpu->SetNZCV(res & 0x80000000, \
                  !res, \
-                 CARRY_SUB(a, b) | CARRY_SUB(res_tmp, carry), \
+                 CARRY_SUB(a, b) & CARRY_SUB(res_tmp, carry), \
                  OVERFLOW_SUB(a, b, res_tmp) | OVERFLOW_SUB(res_tmp, carry, res)); \
     if (((cpu->CurInstr>>12) & 0xF) == 15) \
     { \
@@ -531,7 +545,7 @@ A_IMPLEMENT_ALU_OP(SBC)
     u32 res = res_tmp - carry; \
     cpu->SetNZCV(res & 0x80000000, \
                  !res, \
-                 CARRY_SUB(b, a) | CARRY_SUB(res_tmp, carry), \
+                 CARRY_SUB(b, a) & CARRY_SUB(res_tmp, carry), \
                  OVERFLOW_SUB(b, a, res_tmp) | OVERFLOW_SUB(res_tmp, carry, res)); \
     if (((cpu->CurInstr>>12) & 0xF) == 15) \
     { \
@@ -718,6 +732,163 @@ A_IMPLEMENT_ALU_OP(MVN)
 
 
 
+s32 A_MUL(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+
+    u32 res = rm * rs;
+
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = res;
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ(res & 0x80000000,
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000 || (rs & 0xFFFFFF00) == 0xFFFFFF00) cycles = 1;
+    else if ((rs & 0xFFFF0000) == 0x00000000 || (rs & 0xFFFF0000) == 0xFFFF0000) cycles = 2;
+    else if ((rs & 0xFF000000) == 0x00000000 || (rs & 0xFF000000) == 0xFF000000) cycles = 3;
+    else cycles = 4;
+
+    return C_S(1) + C_I(cycles);
+}
+
+s32 A_MLA(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+    u32 rn = cpu->R[(cpu->CurInstr >> 12) & 0xF];
+
+    u32 res = (rm * rs) + rn;
+
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = res;
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ(res & 0x80000000,
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000 || (rs & 0xFFFFFF00) == 0xFFFFFF00) cycles = 2;
+    else if ((rs & 0xFFFF0000) == 0x00000000 || (rs & 0xFFFF0000) == 0xFFFF0000) cycles = 3;
+    else if ((rs & 0xFF000000) == 0x00000000 || (rs & 0xFF000000) == 0xFF000000) cycles = 4;
+    else cycles = 5;
+
+    return C_S(1) + C_I(cycles);
+}
+
+s32 A_UMULL(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+
+    u64 res = (u64)rm * (u64)rs;
+
+    cpu->R[(cpu->CurInstr >> 12) & 0xF] = (u32)res;
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = (u32)(res >> 32ULL);
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ((u32)(res >> 63ULL),
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000) cycles = 2;
+    else if ((rs & 0xFFFF0000) == 0x00000000) cycles = 3;
+    else if ((rs & 0xFF000000) == 0x00000000) cycles = 4;
+    else cycles = 5;
+
+    return C_S(1) + C_I(cycles);
+}
+
+s32 A_UMLAL(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+
+    u64 res = (u64)rm * (u64)rs;
+
+    u64 rd = (u64)cpu->R[(cpu->CurInstr >> 12) & 0xF] | ((u64)cpu->R[(cpu->CurInstr >> 16) & 0xF] << 32ULL);
+    res += rd;
+
+    cpu->R[(cpu->CurInstr >> 12) & 0xF] = (u32)res;
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = (u32)(res >> 32ULL);
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ((u32)(res >> 63ULL),
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000) cycles = 2;
+    else if ((rs & 0xFFFF0000) == 0x00000000) cycles = 3;
+    else if ((rs & 0xFF000000) == 0x00000000) cycles = 4;
+    else cycles = 5;
+
+    return C_S(1) + C_I(cycles);
+}
+
+s32 A_SMULL(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+
+    s64 res = (s64)(s32)rm * (s64)(s32)rs;
+
+    cpu->R[(cpu->CurInstr >> 12) & 0xF] = (u32)res;
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = (u32)(res >> 32ULL);
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ((u32)(res >> 63ULL),
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000 || (rs & 0xFFFFFF00) == 0xFFFFFF00) cycles = 2;
+    else if ((rs & 0xFFFF0000) == 0x00000000 || (rs & 0xFFFF0000) == 0xFFFF0000) cycles = 3;
+    else if ((rs & 0xFF000000) == 0x00000000 || (rs & 0xFF000000) == 0xFF000000) cycles = 4;
+    else cycles = 5;
+
+    return C_S(1) + C_I(cycles);
+}
+
+s32 A_SMLAL(ARM* cpu)
+{
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
+    u32 rs = cpu->R[(cpu->CurInstr >> 8) & 0xF];
+
+    s64 res = (s64)(s32)rm * (s64)(s32)rs;
+
+    s64 rd = (s64)((u64)cpu->R[(cpu->CurInstr >> 12) & 0xF] | ((u64)cpu->R[(cpu->CurInstr >> 16) & 0xF] << 32ULL));
+    res += rd;
+
+    cpu->R[(cpu->CurInstr >> 12) & 0xF] = (u32)res;
+    cpu->R[(cpu->CurInstr >> 16) & 0xF] = (u32)(res >> 32ULL);
+    if (cpu->CurInstr & (1<<20))
+    {
+        cpu->SetNZ((u32)(res >> 63ULL),
+                   !res);
+        if (cpu->Num==1) cpu->SetC(0);
+    }
+
+    u32 cycles;
+    if      ((rs & 0xFFFFFF00) == 0x00000000 || (rs & 0xFFFFFF00) == 0xFFFFFF00) cycles = 2;
+    else if ((rs & 0xFFFF0000) == 0x00000000 || (rs & 0xFFFF0000) == 0xFFFF0000) cycles = 3;
+    else if ((rs & 0xFF000000) == 0x00000000 || (rs & 0xFF000000) == 0xFF000000) cycles = 4;
+    else cycles = 5;
+
+    return C_S(1) + C_I(cycles);
+}
+
+
+
 s32 A_CLZ(ARM* cpu)
 {
     // TODO: ARM9 only
@@ -962,7 +1133,7 @@ s32 T_SBC_REG(ARM* cpu)
     cpu->R[cpu->CurInstr & 0x7] = res;
     cpu->SetNZCV(res & 0x80000000,
                  !res,
-                 CARRY_SUB(a, b) | CARRY_SUB(res_tmp, carry),
+                 CARRY_SUB(a, b) & CARRY_SUB(res_tmp, carry),
                  OVERFLOW_SUB(a, b, res_tmp) | OVERFLOW_SUB(res_tmp, carry, res));
     return C_S(1);
 }

ARMInterpreter_ALU.h

@@ -72,6 +72,13 @@ A_PROTO_ALU_OP(MOV)
 A_PROTO_ALU_OP(BIC)
 A_PROTO_ALU_OP(MVN)
 
+s32 A_MUL(ARM* cpu);
+s32 A_MLA(ARM* cpu);
+s32 A_UMULL(ARM* cpu);
+s32 A_UMLAL(ARM* cpu);
+s32 A_SMULL(ARM* cpu);
+s32 A_SMLAL(ARM* cpu);
+
 s32 A_CLZ(ARM* cpu);
 
 

ARMInterpreter_LoadStore.cpp

@@ -29,12 +29,12 @@ namespace ARMInterpreter
     x <<= s;
 
 #define LSR_IMM(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) x = 0; \
-    x >>= s;
+    else        x >>= s;
 
 #define ASR_IMM(x, s) \
-    if (s == 0) s = 32; \
+    if (s == 0) x = ((s32)x) >> 31; \
-    x = ((s32)x) >> s;
+    else        x = ((s32)x) >> s;
 
 #define ROR_IMM(x, s) \
     if (s == 0) \
@@ -121,6 +121,7 @@ namespace ARMInterpreter
     u32 val = cpu->Read8(offset); \
     if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset; \
     cpu->R[(cpu->CurInstr>>12) & 0xF] = val; \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRB PC %08X\n", cpu->R[15]); \
     return C_S(1) + C_N(1) + C_I(1) + cpu->MemWaitstate(3, offset);
 
 #define A_LDRB_POST \
@@ -128,6 +129,7 @@ namespace ARMInterpreter
     u32 val = cpu->Read8(addr, cpu->CurInstr & (1<<21)); \
     cpu->R[(cpu->CurInstr>>16) & 0xF] += offset; \
     cpu->R[(cpu->CurInstr>>12) & 0xF] = val; \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRB PC %08X\n", cpu->R[15]); \
     return C_S(1) + C_N(1) + C_I(1) + cpu->MemWaitstate(3, addr);
 
 
@@ -223,7 +225,7 @@ A_IMPLEMENT_WB_LDRSTR(LDRB)
     cpu->R[(cpu->CurInstr>>16) & 0xF] += offset; \
     return C_N(2) + cpu->MemWaitstate(2, addr);
 
-// TODO: CHECK LDRD/STRD TIMINGS!!
+// TODO: CHECK LDRD/STRD TIMINGS!! also, ARM9-only
 
 #define A_LDRD \
     offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
@@ -259,38 +261,44 @@ A_IMPLEMENT_WB_LDRSTR(LDRB)
 
 #define A_LDRH \
     offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = cpu->Read16(offset); \
     if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = cpu->Read16(offset); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRH PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(2, offset);
 
 #define A_LDRH_POST \
     u32 addr = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = cpu->Read16(addr); \
     cpu->R[(cpu->CurInstr>>16) & 0xF] += offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = cpu->Read16(addr); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRH PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(2, addr);
 
 #define A_LDRSB \
     offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s8)cpu->Read8(offset); \
     if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s8)cpu->Read8(offset); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRSB PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(3, offset);
 
 #define A_LDRSB_POST \
     u32 addr = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s8)cpu->Read8(addr); \
     cpu->R[(cpu->CurInstr>>16) & 0xF] += offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s8)cpu->Read8(addr); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRSB PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(3, addr);
 
 #define A_LDRSH \
     offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s16)cpu->Read16(offset); \
     if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s16)cpu->Read16(offset); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRSH PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(2, offset);
 
 #define A_LDRSH_POST \
     u32 addr = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
-    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s16)cpu->Read16(addr); \
     cpu->R[(cpu->CurInstr>>16) & 0xF] += offset; \
+    cpu->R[(cpu->CurInstr>>12) & 0xF] = (s32)(s16)cpu->Read16(addr); \
+    if (((cpu->CurInstr>>12) & 0xF) == 15) printf("!! LDRSH PC %08X\n", cpu->R[15]); \
     return C_N(2) + cpu->MemWaitstate(2, addr);
 
 
@@ -331,11 +339,12 @@ A_IMPLEMENT_HD_LDRSTR(LDRSH)
 s32 A_SWP(ARM* cpu)
 {
     u32 base = cpu->R[(cpu->CurInstr >> 16) & 0xF];
+    u32 rm = cpu->R[cpu->CurInstr & 0xF];
 
     u32 val = cpu->Read32(base);
     cpu->R[(cpu->CurInstr >> 12) & 0xF] = ROR(val, 8*(base&0x3));
 
-    cpu->Write32(base, cpu->R[cpu->CurInstr & 0xF]);
+    cpu->Write32(base, rm);
 
     // the 1S is a code cycle. TODO
     return C_S(1) + C_N(2) + C_I(1) + 2*cpu->MemWaitstate(3, base);
@@ -344,10 +353,11 @@ s32 A_SWP(ARM* cpu)
 s32 A_SWPB(ARM* cpu)
 {
     u32 base = cpu->R[(cpu->CurInstr >> 16) & 0xF];
+    u32 rm = cpu->R[cpu->CurInstr & 0xF] & 0xFF;
 
     cpu->R[(cpu->CurInstr >> 12) & 0xF] = cpu->Read8(base);
 
-    cpu->Write8(base, cpu->R[cpu->CurInstr & 0xF]);
+    cpu->Write8(base, rm);
 
     // the 1S is a code cycle. TODO
     return C_S(1) + C_N(2) + C_I(1) + 2*cpu->MemWaitstate(3, base);
@@ -357,7 +367,9 @@ s32 A_SWPB(ARM* cpu)
 
 s32 A_LDM(ARM* cpu)
 {
-    u32 base = cpu->R[(cpu->CurInstr >> 16) & 0xF];
+    u32 baseid = (cpu->CurInstr >> 16) & 0xF;
+    u32 base = cpu->R[baseid];
+    u32 wbbase;
     u32 preinc = (cpu->CurInstr & (1<<24));
 
     if (!(cpu->CurInstr & (1<<23)))
@@ -371,18 +383,7 @@ s32 A_LDM(ARM* cpu)
         if (cpu->CurInstr & (1<<21))
         {
             // pre writeback
-            u32 rb = (cpu->CurInstr >> 16) & 0xF;
+            wbbase = base;
-            if (cpu->CurInstr & (1 << rb))
-            {
-                if (cpu->Num == 0)
-                {
-                    u32 rlist = cpu->CurInstr & 0xFFFF;
-                    if ((!(rlist & ~(1 << rb))) || (rlist & ~((2 << rb) - 1)))
-                        cpu->R[rb] = base;
-                }
-            }
-            else
-                cpu->R[rb] = base;
         }
 
         preinc = !preinc;
@@ -420,21 +421,23 @@ s32 A_LDM(ARM* cpu)
     if ((cpu->CurInstr & (1<<22)) && !(cpu->CurInstr & (1<<15)))
         cpu->UpdateMode((cpu->CPSR&~0x1F)|0x10, cpu->CPSR);
 
-    if ((cpu->CurInstr & (1<<23)) && (cpu->CurInstr & (1<<21)))
+    if (cpu->CurInstr & (1<<21))
     {
         // post writeback
-        u32 rb = (cpu->CurInstr >> 16) & 0xF;
+        if (cpu->CurInstr & (1<<23))
-        if (cpu->CurInstr & (1 << rb))
+            wbbase = base;
+
+        if (cpu->CurInstr & (1 << baseid))
         {
             if (cpu->Num == 0)
             {
                 u32 rlist = cpu->CurInstr & 0xFFFF;
-                if ((!(rlist & ~(1 << rb))) || (rlist & ~((2 << rb) - 1)))
+                if ((!(rlist & ~(1 << baseid))) || (rlist & ~((2 << baseid) - 1)))
-                    cpu->R[rb] = base;
+                    cpu->R[baseid] = wbbase;
             }
         }
         else
-            cpu->R[rb] = base;
+            cpu->R[baseid] = wbbase;
     }
 
     return cycles;
@@ -442,7 +445,9 @@ s32 A_LDM(ARM* cpu)
 
 s32 A_STM(ARM* cpu)
 {
-    u32 base = cpu->R[(cpu->CurInstr >> 16) & 0xF];
+    u32 baseid = (cpu->CurInstr >> 16) & 0xF;
+    u32 base = cpu->R[baseid];
+    u32 oldbase = base;
     u32 preinc = (cpu->CurInstr & (1<<24));
 
     if (!(cpu->CurInstr & (1<<23)))
@@ -454,11 +459,7 @@ s32 A_STM(ARM* cpu)
         }
 
         if (cpu->CurInstr & (1<<21))
-        {
+            cpu->R[baseid] = base;
-            cpu->R[(cpu->CurInstr >> 16) & 0xF] = base;
-            if (cpu->CurInstr & (1 << ((cpu->CurInstr >> 16) & 0xF)))
-                printf("!! BAD STM\n");
-        }
 
         preinc = !preinc;
     }
@@ -473,7 +474,17 @@ s32 A_STM(ARM* cpu)
         if (cpu->CurInstr & (1<<i))
         {
             if (preinc) base += 4;
-            cpu->Write32(base, cpu->R[i]);
+
+            if (i == baseid)
+            {
+                if ((cpu->Num == 0) || (!(cpu->CurInstr & (i-1))))
+                    cpu->Write32(base, oldbase);
+                else
+                    cpu->Write32(base, base); // checkme
+            }
+            else
+                cpu->Write32(base, cpu->R[i]);
+
             cycles += C_S(1) + cpu->MemWaitstate(3, base);
             if (!preinc) base += 4;
         }
@@ -483,11 +494,7 @@ s32 A_STM(ARM* cpu)
         cpu->UpdateMode((cpu->CPSR&~0x1F)|0x10, cpu->CPSR);
 
     if ((cpu->CurInstr & (1<<23)) && (cpu->CurInstr & (1<<21)))
-    {
+        cpu->R[baseid] = base;
-        cpu->R[(cpu->CurInstr >> 16) & 0xF] = base;
-        if (cpu->CurInstr & (1 << ((cpu->CurInstr >> 16) & 0xF)))
-            printf("!! BAD STM\n");
-    }
 
     return cycles;
 }
@@ -501,7 +508,7 @@ s32 A_STM(ARM* cpu)
 
 s32 T_LDR_PCREL(ARM* cpu)
 {
-    u32 addr = cpu->R[15] + ((cpu->CurInstr & 0xFF) << 2);
+    u32 addr = (cpu->R[15] & ~0x2) + ((cpu->CurInstr & 0xFF) << 2);
     cpu->R[(cpu->CurInstr >> 8) & 0x7] = cpu->Read32(addr);
 
     return C_S(1) + C_N(1) + C_I(1) + cpu->MemWaitstate(3, addr);
@@ -527,7 +534,9 @@ s32 T_STRB_REG(ARM* cpu)
 s32 T_LDR_REG(ARM* cpu)
 {
     u32 addr = cpu->R[(cpu->CurInstr >> 3) & 0x7] + cpu->R[(cpu->CurInstr >> 6) & 0x7];
-    cpu->R[cpu->CurInstr & 0x7] = cpu->Read32(addr);
+
+    u32 val = cpu->Read32(addr);
+    cpu->R[cpu->CurInstr & 0x7] = ROR(val, 8*(addr&0x3));
 
     return C_S(1) + C_N(1) + C_I(1) + cpu->MemWaitstate(3, addr);
 }
@@ -588,7 +597,8 @@ s32 T_LDR_IMM(ARM* cpu)
     u32 offset = (cpu->CurInstr >> 4) & 0x7C;
     offset += cpu->R[(cpu->CurInstr >> 3) & 0x7];
 
-    cpu->R[cpu->CurInstr & 0x7] = cpu->Read32(offset);
+    u32 val = cpu->Read32(offset);
+    cpu->R[cpu->CurInstr & 0x7] = ROR(val, 8*(offset&0x3));
     return C_S(1) + C_N(1) + C_I(1) + cpu->MemWaitstate(3, offset);
 }
 

ARM_InstrTable.h

@@ -21,25 +21,25 @@ INSTRFUNC_PROTO(ARMInstrTable[4096]) =
     // 0000 0000 0000
     A_AND_REG_LSL_IMM, A_AND_REG_LSL_REG, A_AND_REG_LSR_IMM, A_AND_REG_LSR_REG,
     A_AND_REG_ASR_IMM, A_AND_REG_ASR_REG, A_AND_REG_ROR_IMM, A_AND_REG_ROR_REG,
-    A_AND_REG_LSL_IMM, A_UNK, A_AND_REG_LSR_IMM, A_STRH_POST_REG,
+    A_AND_REG_LSL_IMM, A_MUL, A_AND_REG_LSR_IMM, A_STRH_POST_REG,
     A_AND_REG_ASR_IMM, A_LDRD_POST_REG, A_AND_REG_ROR_IMM, A_STRD_POST_REG,
 
     // 0000 0001 0000
     A_AND_REG_LSL_IMM_S, A_AND_REG_LSL_REG_S, A_AND_REG_LSR_IMM_S, A_AND_REG_LSR_REG_S,
     A_AND_REG_ASR_IMM_S, A_AND_REG_ASR_REG_S, A_AND_REG_ROR_IMM_S, A_AND_REG_ROR_REG_S,
-    A_AND_REG_LSL_IMM_S, A_UNK, A_AND_REG_LSR_IMM_S, A_LDRH_POST_REG,
+    A_AND_REG_LSL_IMM_S, A_MUL, A_AND_REG_LSR_IMM_S, A_LDRH_POST_REG,
     A_AND_REG_ASR_IMM_S, A_LDRSB_POST_REG, A_AND_REG_ROR_IMM_S, A_LDRSH_POST_REG,
 
     // 0000 0010 0000
     A_EOR_REG_LSL_IMM, A_EOR_REG_LSL_REG, A_EOR_REG_LSR_IMM, A_EOR_REG_LSR_REG,
     A_EOR_REG_ASR_IMM, A_EOR_REG_ASR_REG, A_EOR_REG_ROR_IMM, A_EOR_REG_ROR_REG,
-    A_EOR_REG_LSL_IMM, A_UNK, A_EOR_REG_LSR_IMM, A_UNK,
+    A_EOR_REG_LSL_IMM, A_MLA, A_EOR_REG_LSR_IMM, A_UNK,
     A_EOR_REG_ASR_IMM, A_UNK, A_EOR_REG_ROR_IMM, A_UNK,
 
     // 0000 0011 0000
     A_EOR_REG_LSL_IMM_S, A_EOR_REG_LSL_REG_S, A_EOR_REG_LSR_IMM_S, A_EOR_REG_LSR_REG_S,
     A_EOR_REG_ASR_IMM_S, A_EOR_REG_ASR_REG_S, A_EOR_REG_ROR_IMM_S, A_EOR_REG_ROR_REG_S,
-    A_EOR_REG_LSL_IMM_S, A_UNK, A_EOR_REG_ROR_IMM_S, A_UNK,
+    A_EOR_REG_LSL_IMM_S, A_MLA, A_EOR_REG_ROR_IMM_S, A_UNK,
     A_EOR_REG_ASR_IMM_S, A_UNK, A_EOR_REG_ROR_IMM_S, A_UNK,
 
     // 0000 0100 0000
@@ -69,49 +69,49 @@ INSTRFUNC_PROTO(ARMInstrTable[4096]) =
     // 0000 1000 0000
     A_ADD_REG_LSL_IMM, A_ADD_REG_LSL_REG, A_ADD_REG_LSR_IMM, A_ADD_REG_LSR_REG,
     A_ADD_REG_ASR_IMM, A_ADD_REG_ASR_REG, A_ADD_REG_ROR_IMM, A_ADD_REG_ROR_REG,
-    A_ADD_REG_LSL_IMM, A_UNK, A_ADD_REG_LSR_IMM, A_STRH_POST_REG,
+    A_ADD_REG_LSL_IMM, A_UMULL, A_ADD_REG_LSR_IMM, A_STRH_POST_REG,
     A_ADD_REG_ASR_IMM, A_LDRD_POST_REG, A_ADD_REG_ROR_IMM, A_STRD_POST_REG,
 
     // 0000 1001 0000
     A_ADD_REG_LSL_IMM_S, A_ADD_REG_LSL_REG_S, A_ADD_REG_LSR_IMM_S, A_ADD_REG_LSR_REG_S,
     A_ADD_REG_ASR_IMM_S, A_ADD_REG_ASR_REG_S, A_ADD_REG_ROR_IMM_S, A_ADD_REG_ROR_REG_S,
-    A_UNK, A_UNK, A_UNK, A_LDRH_POST_REG,
+    A_UNK, A_UMULL, A_UNK, A_LDRH_POST_REG,
     A_UNK, A_LDRSB_POST_REG, A_UNK, A_LDRSH_POST_REG,
 
     // 0000 1010 0000
     A_ADC_REG_LSL_IMM, A_ADC_REG_LSL_REG, A_ADC_REG_LSR_IMM, A_ADC_REG_LSR_REG,
     A_ADC_REG_ASR_IMM, A_ADC_REG_ASR_REG, A_ADC_REG_ROR_IMM, A_ADC_REG_ROR_REG,
-    A_ADC_REG_LSL_IMM, A_UNK, A_ADC_REG_LSR_IMM, A_UNK,
+    A_ADC_REG_LSL_IMM, A_UMLAL, A_ADC_REG_LSR_IMM, A_UNK,
     A_ADC_REG_ASR_IMM, A_UNK, A_ADC_REG_ROR_IMM, A_UNK,
 
     // 0000 1011 0000
     A_ADC_REG_LSL_IMM_S, A_ADC_REG_LSL_REG_S, A_ADC_REG_LSR_IMM_S, A_ADC_REG_LSR_REG_S,
     A_ADC_REG_ASR_IMM_S, A_ADC_REG_ASR_REG_S, A_ADC_REG_ROR_IMM_S, A_ADC_REG_ROR_REG_S,
-    A_ADC_REG_LSL_IMM_S, A_UNK, A_ADC_REG_LSR_IMM_S, A_UNK,
+    A_ADC_REG_LSL_IMM_S, A_UMLAL, A_ADC_REG_LSR_IMM_S, A_UNK,
     A_ADC_REG_ASR_IMM_S, A_UNK, A_ADC_REG_ROR_IMM_S, A_UNK,
 
     // 0000 1100 0000
     A_SBC_REG_LSL_IMM, A_SBC_REG_LSL_REG, A_SBC_REG_LSR_IMM, A_SBC_REG_LSR_REG,
     A_SBC_REG_ASR_IMM, A_SBC_REG_ASR_REG, A_SBC_REG_ROR_IMM, A_SBC_REG_ROR_REG,
-    A_SBC_REG_LSL_IMM, A_UNK, A_SBC_REG_LSR_IMM, A_STRH_POST_IMM,
+    A_SBC_REG_LSL_IMM, A_SMULL, A_SBC_REG_LSR_IMM, A_STRH_POST_IMM,
     A_SBC_REG_ASR_IMM, A_LDRD_POST_IMM, A_SBC_REG_ROR_IMM, A_STRD_POST_IMM,
 
     // 0000 1101 0000
     A_SBC_REG_LSL_IMM_S, A_SBC_REG_LSL_REG_S, A_SBC_REG_LSR_IMM_S, A_SBC_REG_LSR_REG_S,
     A_SBC_REG_ASR_IMM_S, A_SBC_REG_ASR_REG_S, A_SBC_REG_ROR_IMM_S, A_SBC_REG_ROR_REG_S,
-    A_SBC_REG_LSL_IMM_S, A_UNK, A_SBC_REG_LSR_IMM_S, A_LDRH_POST_IMM,
+    A_SBC_REG_LSL_IMM_S, A_SMULL, A_SBC_REG_LSR_IMM_S, A_LDRH_POST_IMM,
     A_SBC_REG_ASR_IMM_S, A_LDRSB_POST_IMM, A_SBC_REG_ROR_IMM_S, A_LDRSH_POST_IMM,
 
     // 0000 1110 0000
     A_RSC_REG_LSL_IMM, A_RSC_REG_LSL_REG, A_RSC_REG_LSR_IMM, A_RSC_REG_LSR_REG,
     A_RSC_REG_ASR_IMM, A_RSC_REG_ASR_REG, A_RSC_REG_ROR_IMM, A_RSC_REG_ROR_REG,
-    A_RSC_REG_LSL_IMM, A_UNK, A_RSC_REG_LSR_IMM, A_UNK,
+    A_RSC_REG_LSL_IMM, A_SMLAL, A_RSC_REG_LSR_IMM, A_UNK,
     A_RSC_REG_ASR_IMM, A_UNK, A_RSC_REG_ROR_IMM, A_UNK,
 
     // 0000 1111 0000
     A_RSC_REG_LSL_IMM_S, A_RSC_REG_LSL_REG_S, A_RSC_REG_LSR_IMM_S, A_RSC_REG_LSR_REG_S,
     A_RSC_REG_ASR_IMM_S, A_RSC_REG_ASR_REG_S, A_RSC_REG_ROR_IMM_S, A_RSC_REG_ROR_REG_S,
-    A_RSC_REG_LSL_IMM_S, A_UNK, A_RSC_REG_LSR_IMM_S, A_UNK,
+    A_RSC_REG_LSL_IMM_S, A_SMLAL, A_RSC_REG_LSR_IMM_S, A_UNK,
     A_RSC_REG_ASR_IMM_S, A_UNK, A_RSC_REG_ROR_IMM_S, A_UNK,
 
 

CP15.cpp

@@ -42,10 +42,6 @@ void Reset()
 
     DTCMSetting = 0;
     ITCMSetting = 0;
-    //DTCMSetting = 0x0300000A;
-    //ITCMSetting = 0x00000020;
-    //UpdateDTCMSetting();
-    //UpdateITCMSetting();
 }
 
 
@@ -94,6 +90,7 @@ void Write(u32 id, u32 val)
 
 
     case 0x704:
+    case 0x782:
         NDS::ARM9->Halt(1);
         return;
 

GPU2D.cpp

@@ -56,6 +56,8 @@ u8* VRAM_BOBJ[128];
 u8* VRAM_LCD[128];
 u8* VRAM_ARM7[2];
 
+u16 Framebuffer[256*192*2];
+
 
 void Reset()
 {
@@ -88,6 +90,11 @@ void Reset()
     memset(VRAM_BOBJ, 0, sizeof(u8*)*128);
     memset(VRAM_LCD, 0, sizeof(u8*)*128);
     memset(VRAM_ARM7, 0, sizeof(u8*)*2);
+
+    for (int i = 0; i < 256*192*2; i++)
+    {
+        Framebuffer[i] = (i>=256*192)?0x03E0:0x7C00;
+    }
 }
 
 
@@ -657,6 +664,24 @@ void MapVRAM_I(u32 bank, u8 cnt)
 }
 
 
+void DrawScanline(u32 screen, u32 line)
+{
+    u16* dst = &Framebuffer[256 * ((192*screen) + line)];
+
+    if (screen==0)
+    {
+        u16* src = &((u16*)VRAM_A)[256*line];
+        for (int i = 0; i < 256; i++)
+            dst[i] = src[i];
+    }
+    else
+    {
+        for (int i = 0; i < 256; i++)
+            dst[i] = 0x7FFF;
+    }
+}
+
+
 void StartFrame()
 {
     StartScanline(0);
@@ -686,7 +711,9 @@ void StartScanline(u32 line)
 
     if (line < 192)
     {
-        // TODO: draw shit
+        // draw
+        DrawScanline(0, line);
+        DrawScanline(1, line);
 
         NDS::ScheduleEvent(LINE_CYCLES, StartScanline, line+1);
     }

GPU2D.h

@@ -39,6 +39,8 @@ extern u8* VRAM_BOBJ[128];
 extern u8* VRAM_LCD[128];
 extern u8* VRAM_ARM7[2];
 
+extern u16 Framebuffer[256*192*2];
+
 
 void Reset();
 

NDS.cpp

@@ -77,6 +77,8 @@ u8 ROMCommand[8];
 u8 ROMCurCommand[8];
 u32 ROMReadPos, ROMReadSize;
 
+u32 KeyInput;
+
 u16 _soundbias; // temp
 
 bool Running;
@@ -120,11 +122,15 @@ void LoadROM()
     {
         u32 tmp;
         fread(&tmp, 4, 1, f);
-        ARM9Write32(bootparams[6]+i, tmp);
+        ARM7Write32(bootparams[6]+i, tmp);
     }
 
     fclose(f);
 
+    CP15::Write(0x910, 0x0300000A);
+    CP15::Write(0x911, 0x00000020);
+    CP15::Write(0x100, 0x00050000);
+
     ARM9->JumpTo(bootparams[1]);
     ARM7->JumpTo(bootparams[5]);
 }
@@ -188,8 +194,8 @@ void Reset()
 
     memset(Timers, 0, 8*sizeof(Timer));
 
+    GPU2D::Reset();
     SPI::Reset();
-
     Wifi::Reset();
 
     memset(SchedBuffer, 0, sizeof(SchedEvent)*SCHED_BUF_LEN);
@@ -199,6 +205,8 @@ void Reset()
     ARM7Cycles = 0;
     SchedCycles = 0;
 
+    KeyInput = 0x007F03FF;
+
     _soundbias = 0;
 
     // test
@@ -365,6 +373,17 @@ void CompensateARM7()
 }
 
 
+void PressKey(u32 key)
+{
+    KeyInput &= ~(1 << key);
+}
+
+void ReleaseKey(u32 key)
+{
+    KeyInput |= (1 << key);
+}
+
+
 void Halt()
 {
     printf("Halt()\n");
@@ -412,7 +431,7 @@ void MapSharedWRAM(u8 val)
 void TriggerIRQ(u32 cpu, u32 irq)
 {
     irq = 1 << irq;
-    if (!(IE[cpu] & irq)) return;
+    //if (!(IE[cpu] & irq)) return;
 
     IF[cpu] |= irq;
 
@@ -457,7 +476,10 @@ void TimerIncrement(u32 param)
             timer->Counter = timer->Reload;
 
             if (timer->Control & (1<<6))
+            {
                 TriggerIRQ(cpu, IRQ_Timer0 + tid);
+                //if (cpu==1) printf("Timer%d IRQ %04X\n", tid, timer->Control);
+            }
 
             // cascade
             if (tid == 3)
@@ -483,16 +505,15 @@ void TimerStart(u32 id, u16 cnt)
 
     if ((!curstart) && newstart)
     {
+        timer->Counter = timer->Reload;
+
         // start the timer, if it's not a cascading timer
         if (!(cnt & (1<<2)))
-        {
-            timer->Counter = timer->Reload;
             timer->Event = ScheduleEvent(TimerPrescaler[cnt&0x3], TimerIncrement, id);
-        }
         else
             timer->Event = NULL;
     }
-    else if (curstart && !newstart)
+    else if (curstart && (!newstart))
     {
         if (timer->Event)
             CancelEvent(timer->Event);
@@ -693,6 +714,8 @@ u16 ARM9Read16(u32 addr)
         case 0x0400010C: return Timers[3].Counter;
         case 0x0400010E: return Timers[3].Control;
 
+        case 0x04000130: return KeyInput & 0xFFFF;
+
         case 0x04000180: return IPCSync9;
 
         case 0x04000204: return 0;//0xFFFF;
@@ -849,7 +872,7 @@ void ARM9Write8(u32 addr, u8 val)
             ROMSPIControl |= (val << 8);
             return;
 
-        case 0x04000208: IME[0] = val; return;
+        case 0x04000208: IME[0] = val & 0x1; return;
 
         case 0x04000240: GPU2D::MapVRAM_AB(0, val); return;
         case 0x04000241: GPU2D::MapVRAM_AB(1, val); return;
@@ -926,7 +949,7 @@ void ARM9Write16(u32 addr, u16 val)
             ROMSPIControl = val;
             return;
 
-        case 0x04000208: IME[0] = val; return;
+        case 0x04000208: IME[0] = val & 0x1; return;
 
         case 0x04000240:
             GPU2D::MapVRAM_AB(0, val & 0xFF);
@@ -950,6 +973,8 @@ void ARM9Write16(u32 addr, u16 val)
             return;
 
         case 0x04000304: PowerControl9 = val; return;
+
+        //case 0x04001036: ARM7->debug=2; break;
         }
         break;
 
@@ -1035,8 +1060,25 @@ void ARM9Write32(u32 addr, u32 val)
             if (val & 0x80000000) ROMStartTransfer(0);
             return;
 
-        case 0x04000208: IME[0] = val; return;
+        case 0x04000208: IME[0] = val & 0x1; return;
-        case 0x04000210: IE[0] = val; 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 0x04000214: IF[0] &= ~val; return;
 
         case 0x04000240:
@@ -1093,6 +1135,7 @@ u8 ARM7Read8(u32 addr)
 {
     if (addr < 0x00004000)
     {
+        if (ARM7->R[15] > 0x4000) printf("BAD BIOS READ8 %08X FROM %08X\n", addr, ARM7->R[15]);
         return *(u8*)&ARM7BIOS[addr];
     }
 
@@ -1146,6 +1189,7 @@ u16 ARM7Read16(u32 addr)
 {
     if (addr < 0x00004000)
     {
+        if (ARM7->R[15] > 0x4000) printf("BAD BIOS READ16 %08X FROM %08X\n", addr, ARM7->R[15]);
         return *(u16*)&ARM7BIOS[addr];
     }
 
@@ -1176,6 +1220,9 @@ u16 ARM7Read16(u32 addr)
         case 0x0400010C: return Timers[7].Counter;
         case 0x0400010E: return Timers[7].Control;
 
+        case 0x04000130: return KeyInput & 0xFFFF;
+        case 0x04000136: return KeyInput >> 16;
+
         case 0x04000134: return 0x8000;
         case 0x04000138: return 0; // RTC shit
 
@@ -1216,6 +1263,8 @@ 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]);
         return *(u32*)&ARM7BIOS[addr];
     }
 
@@ -1274,6 +1323,7 @@ u32 ARM7Read32(u32 addr)
 
 void ARM7Write8(u32 addr, u8 val)
 {
+    if (addr==0x3807764) printf("DERP! %02X %08X\n", val, ARM7->R[15]);
     switch (addr & 0xFF800000)
     {
     case 0x02000000:
@@ -1317,7 +1367,7 @@ void ARM7Write8(u32 addr, u8 val)
             SPI::WriteData(val);
             return;
 
-        case 0x04000208: IME[1] = val; return;
+        case 0x04000208: IME[1] = val & 0x1; return;
 
         case 0x04000301:
             if (val == 0x80) ARM7->Halt(1);
@@ -1355,6 +1405,7 @@ void ARM7Write8(u32 addr, u8 val)
 
 void ARM7Write16(u32 addr, u16 val)
 {
+    if (addr==0x3807764) printf("DERP! %04X %08X\n", val, ARM7->R[15]);
     switch (addr & 0xFF800000)
     {
     case 0x02000000:
@@ -1377,13 +1428,23 @@ 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; return;
+        case 0x04000104: Timers[5].Reload = val;
-        case 0x04000106: TimerStart(5, val); return;
+            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);
+            return;
+        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;
         case 0x04000108: Timers[6].Reload = val; return;
         case 0x0400010A: TimerStart(6, val); return;
         case 0x0400010C: Timers[7].Reload = val; return;
         case 0x0400010E: TimerStart(7, val); return;
 
+        case 0x04000134: return;printf("set debug port %04X %08X\n", val, ARM7Read32(ARM7->R[13]+4)); return;
+
         case 0x04000138: return; // RTC shit
 
         case 0x04000180:
@@ -1409,7 +1470,7 @@ void ARM7Write16(u32 addr, u16 val)
             SPI::WriteData(val & 0xFF);
             return;
 
-        case 0x04000208: IME[1] = val; return;
+        case 0x04000208: IME[1] = val & 0x1; return;
 
         case 0x04000304: PowerControl7 = val; return;
 
@@ -1439,6 +1500,8 @@ void ARM7Write16(u32 addr, u16 val)
 
 void ARM7Write32(u32 addr, u32 val)
 {
+    if (addr==0x27FF890) printf("HAHA! %08X\n", val);
+    if (addr==0x3807764) printf("DERP! %08X %08X\n", val, ARM7->R[15]);
     switch (addr & 0xFF800000)
     {
     case 0x02000000:
@@ -1484,11 +1547,11 @@ void ARM7Write32(u32 addr, u32 val)
             if (val & 0x80000000) ROMStartTransfer(1);
             return;
 
-        case 0x04000208: IME[1] = val; return;
+        case 0x04000208: IME[1] = val & 0x1; return;
         case 0x04000210: IE[1] = val; return;
         case 0x04000214: IF[1] &= ~val; return;
         }
-        return;
+        break;
 
     case 0x06000000:
     case 0x06800000:

NDS.h

@@ -73,7 +73,11 @@ typedef struct
     SchedEvent* Event;
 
 } Timer;
+
+// hax
 extern u32 IME[2];
+extern Timer Timers[8];
+
 extern u32 ARM9ITCMSize;
 extern u32 ARM9DTCMBase, ARM9DTCMSize;
 
@@ -82,6 +86,9 @@ void Reset();
 
 void RunFrame();
 
+void PressKey(u32 key);
+void ReleaseKey(u32 key);
+
 SchedEvent* ScheduleEvent(s32 Delay, void (*Func)(u32), u32 Param);
 void CancelEvent(SchedEvent* event);
 void RunEvents(s32 cycles);

SPI.cpp

@@ -197,6 +197,7 @@ void WriteData(u8 val)
     switch (CNT & 0x0300)
     {
     case 0x0100: SPI_Firmware::Write(val, CNT&(1<<11)); break;
+    default: printf("SPI to unknown device %04X %02X\n", CNT, val); break;
     }
 
     if (CNT & (1<<14))

main.cpp

@@ -17,7 +17,59 @@
 */
 
 #include <stdio.h>
+#include <windows.h>
 #include "NDS.h"
+#include "GPU2D.h"
+
+
+HINSTANCE instance;
+HWND melon;
+BITMAPV4HEADER bmp;
+bool quit;
+
+
+LRESULT CALLBACK derpo(HWND window, UINT msg, WPARAM wparam, LPARAM lparam)
+{
+    switch (msg)
+    {
+    case WM_CLOSE:
+        printf("close\n");
+        PostQuitMessage(0);
+        return 0;
+
+    case WM_KEYDOWN:
+        switch (wparam)
+        {
+        case VK_RETURN: NDS::PressKey(3); break;
+        case VK_SPACE:  NDS::PressKey(2); break;
+        case VK_UP:     NDS::PressKey(6); break;
+        case VK_DOWN:   NDS::PressKey(7); break;
+        case VK_LEFT:   NDS::PressKey(5); break;
+        case VK_RIGHT:  NDS::PressKey(4); break;
+        }
+        return 0;
+
+    case WM_KEYUP:
+        switch (wparam)
+        {
+        case VK_RETURN: NDS::ReleaseKey(3); break;
+        case VK_SPACE:  NDS::ReleaseKey(2); break;
+        case VK_UP:     NDS::ReleaseKey(6); break;
+        case VK_DOWN:   NDS::ReleaseKey(7); break;
+        case VK_LEFT:   NDS::ReleaseKey(5); break;
+        case VK_RIGHT:  NDS::ReleaseKey(4); break;
+        }
+        return 0;
+
+    /*case WM_PAINT:
+        {
+
+        }
+        return 0;*/
+    }
+
+    return DefWindowProc(window, msg, wparam, lparam);
+}
 
 
 int main()
@@ -25,12 +77,78 @@ int main()
     printf("melonDS version uh... 0.1??\n");
     printf("it's a DS emulator!!!\n");
     printf("http://melonds.kuribo64.net/\n");
+    quit = false;
+
+    instance = GetModuleHandle(NULL);
+
+    // god this shit sucks
+    WNDCLASSEX shit;
+    shit.cbSize = sizeof(shit);
+    shit.style = CS_HREDRAW | CS_VREDRAW;
+    shit.lpfnWndProc = derpo;
+    shit.cbClsExtra = 0;
+    shit.cbWndExtra = 0;
+    shit.hInstance = instance;
+    shit.hIcon = NULL;
+    shit.hIconSm = NULL;
+    shit.hCursor = NULL;
+    shit.hbrBackground = (HBRUSH)(COLOR_WINDOWFRAME+1);
+    shit.lpszMenuName = NULL;
+    shit.lpszClassName = "v0ltmeters";
+    RegisterClassEx(&shit);
+
+    RECT rekt;
+    rekt.left = 0;    rekt.top = 0;
+    rekt.right = 256; rekt.bottom = 384;
+    AdjustWindowRect(&rekt, WS_OVERLAPPEDWINDOW, FALSE);
+
+    melon = CreateWindow("v0ltmeters",
+                         "melonDS",
+                         WS_OVERLAPPEDWINDOW,
+                         CW_USEDEFAULT, CW_USEDEFAULT,
+                         rekt.right-rekt.left, rekt.bottom-rekt.top,
+                         NULL,
+                         NULL,
+                         instance,
+                         NULL);
+
+    ShowWindow(melon, SW_SHOW);
+
+    // more sucky shit!
+    memset(&bmp, 0, sizeof(bmp));
+    bmp.bV4Size = sizeof(bmp);
+    bmp.bV4Width = 256;
+    bmp.bV4Height = -384;
+    bmp.bV4Planes = 1;
+    bmp.bV4BitCount = 16;
+    bmp.bV4V4Compression = BI_RGB|BI_BITFIELDS;
+    bmp.bV4RedMask = 0x001F;
+    bmp.bV4GreenMask = 0x03E0;
+    bmp.bV4BlueMask = 0x7C00;
 
     NDS::Init();
 
     for (;;)
     {
+        MSG msg;
+        while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
+        {
+            if (msg.message == WM_QUIT)
+            {
+                quit = true;
+                break;
+            }
+
+            TranslateMessage(&msg);
+            DispatchMessage(&msg);
+        }
+        if (quit) break;
+
         NDS::RunFrame();
+
+        HDC dc = GetDC(melon);
+        SetDIBitsToDevice(dc, 0, 0, 256, 384, 0, 0, 0, 384, GPU2D::Framebuffer, (BITMAPINFO*)&bmp, DIB_RGB_COLORS);
+        UpdateWindow(melon);
     }
 
     return 0;

melonDS.cbp

@@ -32,8 +32,27 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
+		<Unit filename="ARM.cpp" />
+		<Unit filename="ARM.h" />
+		<Unit filename="ARMInterpreter.cpp" />
+		<Unit filename="ARMInterpreter.h" />
+		<Unit filename="ARMInterpreter_ALU.cpp" />
+		<Unit filename="ARMInterpreter_ALU.h" />
+		<Unit filename="ARMInterpreter_Branch.cpp" />
+		<Unit filename="ARMInterpreter_Branch.h" />
+		<Unit filename="ARMInterpreter_LoadStore.cpp" />
+		<Unit filename="ARMInterpreter_LoadStore.h" />
+		<Unit filename="ARM_InstrTable.h" />
+		<Unit filename="CP15.cpp" />
+		<Unit filename="CP15.h" />
+		<Unit filename="GPU2D.cpp" />
+		<Unit filename="GPU2D.h" />
 		<Unit filename="NDS.cpp" />
 		<Unit filename="NDS.h" />
+		<Unit filename="SPI.cpp" />
+		<Unit filename="SPI.h" />
+		<Unit filename="Wifi.cpp" />
+		<Unit filename="Wifi.h" />
 		<Unit filename="main.cpp" />
 		<Unit filename="types.h" />
 		<Extensions>

melonDS.depend

@@ -1,14 +1,16 @@
 # depslib dependency file v1.0
-1480957085 source:c:\documents\sources\melonds\main.cpp
+1481167563 source:c:\documents\sources\melonds\main.cpp
 	<stdio.h>
+	<windows.h>
 	"NDS.h"
+	"GPU2D.h"
 
-1480989459 c:\documents\sources\melonds\nds.h
+1481167101 c:\documents\sources\melonds\nds.h
 	"types.h"
 
-1480957224 c:\documents\sources\melonds\types.h
+1481161027 c:\documents\sources\melonds\types.h
 
-1481040741 source:c:\documents\sources\melonds\nds.cpp
+1481230323 source:c:\documents\sources\melonds\nds.cpp
 	<stdio.h>
 	<string.h>
 	"NDS.h"
@@ -18,23 +20,23 @@
 	"SPI.h"
 	"Wifi.h"
 
-1480989161 source:c:\documents\sources\melonds\arm.cpp
+1481167780 source:c:\documents\sources\melonds\arm.cpp
 	<stdio.h>
 	"NDS.h"
 	"ARM.h"
 	"ARMInterpreter.h"
 
-1480975035 c:\documents\sources\melonds\arm.h
+1481062839 c:\documents\sources\melonds\arm.h
 	"types.h"
 	"NDS.h"
 
-1480965403 c:\documents\sources\melonds\arm_instrtable.h
+1481160977 c:\documents\sources\melonds\arm_instrtable.h
 
 1480965273 c:\documents\sources\melonds\arminterpreter.h
 	"types.h"
 	"ARM.h"
 
-1481038843 source:c:\documents\sources\melonds\arminterpreter.cpp
+1481124482 source:c:\documents\sources\melonds\arminterpreter.cpp
 	<stdio.h>
 	"NDS.h"
 	"CP15.h"
@@ -50,20 +52,21 @@
 	<stdio.h>
 	"ARM.h"
 
-1480965420 c:\documents\sources\melonds\arminterpreter_alu.h
+1481160920 c:\documents\sources\melonds\arminterpreter_alu.h
 
-1480966229 source:c:\documents\sources\melonds\arminterpreter_alu.cpp
+1481202027 source:c:\documents\sources\melonds\arminterpreter_alu.cpp
+	<stdio.h>
 	"ARM.h"
 
 1480957165 c:\documents\sources\melonds\arminterpreter_loadstore.h
 
-1480972662 source:c:\documents\sources\melonds\arminterpreter_loadstore.cpp
+1481203284 source:c:\documents\sources\melonds\arminterpreter_loadstore.cpp
 	<stdio.h>
 	"ARM.h"
 
 1481037554 c:\documents\sources\melonds\cp15.h
 
-1481037609 source:c:\documents\sources\melonds\cp15.cpp
+1481159008 source:c:\documents\sources\melonds\cp15.cpp
 	<stdio.h>
 	"NDS.h"
 	"ARM.h"
@@ -71,18 +74,24 @@
 
 1480957111 c:\documents\sources\melonds\spi.h
 
-1481038838 source:c:\documents\sources\melonds\spi.cpp
+1481058591 source:c:\documents\sources\melonds\spi.cpp
 	<stdio.h>
 	"NDS.h"
 	"SPI.h"
 
-1481033110 source:c:\documents\sources\melonds\gpu2d.cpp
+1481167730 source:c:\documents\sources\melonds\gpu2d.cpp
 	<stdio.h>
 	<string.h>
 	"NDS.h"
 	"GPU2D.h"
 
-1480986603 c:\documents\sources\melonds\gpu2d.h
+1481164639 c:\documents\sources\melonds\gpu2d.h
 
 1481040524 c:\documents\sources\melonds\wifi.h
 
+1481041659 source:c:\documents\sources\melonds\wifi.cpp
+	<stdio.h>
+	<string.h>
+	"NDS.h"
+	"Wifi.h"
+

types.h

@@ -22,10 +22,10 @@
 typedef unsigned char       u8;
 typedef unsigned short      u16;
 typedef unsigned int        u32;
-typedef unsigned long int   u64;
+typedef unsigned long long int   u64;
 typedef signed char         s8;
 typedef signed short        s16;
 typedef signed int          s32;
-typedef signed long int     s64;
+typedef signed long long int     s64;
 
 #endif // TYPES_H