Make WRAMCNT readable

PSI-Rockin · Dec 25, 2017 · 7c053cc · 7c053cc
1 parent c421e10
commit 7c053cc
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Showing 3 changed files with 6 additions and 0 deletions.
diff --git a/src/arm7rw.cpp b/src/arm7rw.cpp
@@ -228,6 +228,8 @@ uint8_t Emulator::arm7_read_byte(uint32_t address)
             return 0;
         case 0x0400021C: //DSi IF2
             return 0;
+        case 0x04000241:
+            return WRAMCNT & 0x3;
         case 0x04000300:
             return POSTFLG7;
         case 0x04000501:

diff --git a/src/arm9rw.cpp b/src/arm9rw.cpp
@@ -300,6 +300,8 @@ uint8_t Emulator::arm9_read_byte(uint32_t address)
             return gpu.get_VRAMCNT_A();
         case 0x04000241:
             return gpu.get_VRAMCNT_B();
+        case 0x04000247:
+            return WRAMCNT & 0x3;
         case 0x04000300:
             return POSTFLG9;
         case 0x04004000:

diff --git a/src/cpuinstrs.cpp b/src/cpuinstrs.cpp
@@ -724,6 +724,7 @@ void Interpreter::signed_halfword_multiply(ARM_CPU &cpu, uint32_t instruction)
     switch (opcode)
     {
         case 0x8:
+            //SMLAxy
             if (first_op_top)
                 product = (int16_t)(cpu.get_register(first_operand) >> 16);
             else
@@ -740,6 +741,7 @@ void Interpreter::signed_halfword_multiply(ARM_CPU &cpu, uint32_t instruction)
                 cpu.get_CPSR()->sticky_overflow = true;
             break;
         case 0xB:
+            //SMULxy
             if (first_op_top)
                 product = (int16_t)(cpu.get_register(first_operand) >> 16);
             else