1 files changed, 99 insertions, 0 deletions
diff --git a/src/code_800B5F0.c b/src/code_800B5F0.c
new file mode 100644
index 0000000..35b5282
--- /dev/null
+++ b/src/code_800B5F0.c
@@ -0,0 +1,99 @@
+#include "global.h"
+
+extern bool8 gInterruptsEnabled;
+extern u32 gIntrTable[];
+extern u32 IntrMain;
+extern u8 gUnknown_202D4B8;
+extern u32 gUnknown_202D5F0[];
+
+bool8 EnableInterrupts(void)
+{
+    if(gInterruptsEnabled == FALSE)
+    {
+        return FALSE;
+    }
+
+    if((REG_IME & 1) != 0)
+    {
+        return FALSE;
+    }
+    else
+    {
+        REG_IME = 1;
+        return TRUE;
+    }
+}
+
+bool8 DisableInterrupts(void)
+{
+    if(gInterruptsEnabled == 0)
+    {
+        return FALSE;
+    }
+
+    if((REG_IME & 1) == 0)
+    {
+        return FALSE;
+    }
+    else
+    {
+        REG_IME = 0;
+        return TRUE;
+    }
+
+}
+
+bool8 sub_800B650(void)
+{
+    if(gInterruptsEnabled == FALSE)
+    {
+        return FALSE;
+    }
+
+    if((REG_IME & 1) != 0)
+    {
+        return FALSE;
+    }
+    else
+    {
+        return TRUE;
+    }
+}
+
+void SetInterruptFlag(u16 flag)
+{
+    if(gInterruptsEnabled == FALSE)
+    {
+        return;
+    }
+
+    REG_IME = 0;
+    INTR_CHECK |= flag;
+    REG_IME = 1;
+}
+
+void sub_800B6B0(const u32 *r0)
+{
+    CpuCopy32(r0, &gIntrTable, 0x18); // 0x18 = 0x6 * 4 (0x4f00 is 32 bits)
+    CpuCopy32(&IntrMain, &gUnknown_202D4B8, 0x120); // 0x120 = 0x48 * 4 (0x4f00 is 32 bits)
+    INTR_VECTOR = &gUnknown_202D4B8;
+}
+
+u32 *sub_800B6E8(u32 r0)
+{
+    return &gIntrTable[r0];
+}
+
+u32 sub_800B6F4(u32 r0, u32 r1)
+{
+    u32 temp;
+    u32 interrupt_var;
+
+    interrupt_var = DisableInterrupts();
+    temp = gUnknown_202D5F0[r0];
+    gUnknown_202D5F0[r0] = r1;
+    if(interrupt_var != FALSE){
+        EnableInterrupts();
+    }
+    return temp;
+}