diff --git a/include/common.h b/include/common.h
index 9c1f2f3d..fc85b616 100644
--- a/include/common.h
+++ b/include/common.h
@@ -6,6 +6,7 @@ typedef unsigned char u8;
 typedef unsigned short u16;
 typedef unsigned int u32;
 typedef unsigned long long u64;
+typedef float f32;
 
 #define true 1
 #define false 0
diff --git a/src/main/5A20.c b/src/main/5A20.c
index b6d208da..66a57a2a 100644
--- a/src/main/5A20.c
+++ b/src/main/5A20.c
@@ -1,12 +1,22 @@
 #include "common.h"
 
-#pragma GLOBAL_ASM("asm/us/nonmatchings/main/5A20/func_80004E20.s")
+f32 func_80004E20(f32 arg0, f32 arg1) {
+    return arg0 - ((s32)(arg0 / arg1) * arg1);
+}
 
 #pragma GLOBAL_ASM("asm/us/nonmatchings/main/5A20/func_80004E4C.s")
 
 #pragma GLOBAL_ASM("asm/us/nonmatchings/main/5A20/func_80004EB0.s")
 
-#pragma GLOBAL_ASM("asm/us/nonmatchings/main/5A20/func_80004FC8.s")
+extern s32 D_8013B3A0;
+extern s32 D_8013B3B0;
+extern s32 D_8013B3B4;
+
+void func_80004FC8(s32 arg0, s32 arg1, s32 arg2) {
+    D_8013B3B0 = arg0;
+    D_8013B3B4 = arg1;
+    D_8013B3A0 = arg2;
+}
 
 #pragma GLOBAL_ASM("asm/us/nonmatchings/main/5A20/func_80004FE8.s")