reset fastmem on DSi soft reset

src/ARMJIT_Internal.h

@@ -114,6 +114,7 @@ struct __attribute__((packed)) TinyVector
 
     void Remove(int index)
     {
+        assert(Length > 0);
         assert(index >= 0 && index < Length);
 
         Length--;

src/ARMJIT_Memory.cpp

@@ -414,7 +414,7 @@ void RemapDTCM(u32 newBase, u32 newSize)
             u32 start = mapping.Addr;
             u32 end = mapping.Addr + mapping.Size;
 
-            printf("mapping %d %x %x %x %x\n", region, mapping.Addr, mapping.Size, mapping.Num, mapping.LocalOffset);
+            printf("unmapping %d %x %x %x %x\n", region, mapping.Addr, mapping.Size, mapping.Num, mapping.LocalOffset);
 
             bool oldOverlap = NDS::ARM9->DTCMSize > 0 && !(oldDTCMBase >= end || oldDTCBEnd <= start);
             bool newOverlap = newSize > 0 && !(newBase >= end || newEnd <= start);

src/DSi.cpp

@@ -181,15 +181,17 @@ void SoftReset()
 
     // also, BPTWL[0x70] could be abused to quickly boot specific titles
 
+#ifdef JIT_ENABLED
+    ARMJIT_Memory::Reset();
+    ARMJIT::CheckAndInvalidateITCM();
+#endif
+
     NDS::ARM9->Reset();
     NDS::ARM7->Reset();
 
     NDS::ARM9->CP15Reset();
 
     memcpy(NDS::ARM9->ITCM, ITCMInit, 0x8000);
-#ifdef JIT_ENABLED
-    ARMJIT::CheckAndInvalidateITCM();
-#endif
 
     DSi_AES::Reset();