The first commit

src/core1/code_15770.c

@@ -0,0 +1,77 @@
+#include <ultra64.h>
+#include "functions.h"
+#include "variables.h"
+
+extern struct {
+    void *unk0;
+    int unk4;
+} D_80282FE0;
+
+extern u8 D_8000E800;
+extern u8 D_803A5D00[2][0x1ecc0];
+
+void func_80253208(Gfx **gdl, s32 x, s32 y, s32 w, s32 h, void *color_buffer);
+
+void func_80253190(Gfx **gdl){
+    func_80253208(gdl, 0, 0, D_80276588, D_8027658C, D_803A5D00[func_8024BDA0()]);
+}
+
+void func_80253208(Gfx **gdl, s32 x, s32 y, s32 w, s32 h, void *color_buffer){
+    if( D_80282FE0.unk0 != NULL && (getGameMode() != GAME_MODE_4_PAUSED || func_80335134())){
+        //draw z_buffer
+        gDPPipeSync((*gdl)++);
+        gDPSetColorImage((*gdl)++, G_IM_FMT_RGBA, G_IM_SIZ_16b, D_80276588, OS_K0_TO_PHYSICAL(D_80282FE0.unk0));
+        gDPSetCycleType((*gdl)++, G_CYC_FILL);
+        gDPSetRenderMode((*gdl)++, G_RM_NOOP, G_RM_NOOP2);
+        gDPSetFillColor((*gdl)++, 0xFFFCFFFC);
+        gDPScisFillRectangle((*gdl)++, x, y, x + w - 1, y + h - 1);
+        
+        //draw color_buffer
+        gDPPipeSync((*gdl)++);
+        gDPSetColorImage((*gdl)++, G_IM_FMT_RGBA, G_IM_SIZ_16b, D_80276588, OS_K0_TO_PHYSICAL(color_buffer));
+    }
+}
+
+int func_80253400(void){
+    return D_80282FE0.unk4;
+}
+
+int func_8025340C(void){
+    return D_80282FE0.unk0 != NULL;
+}
+
+void func_80253420(void){}
+
+#ifdef NONMATCHING
+s32 func_80253428(int arg0){
+    if(arg0){
+        D_80282FE0.unk0 = &D_8000E800;
+        while((s32)D_80282FE0.unk0 % 0x40){
+            D_80282FE0.unk0 = (s32)D_80282FE0.unk0 + 2;
+        }
+    }else{//L80253494
+        D_80282FE0.unk0 = NULL;
+        
+    }//L802534A0
+    D_80282FE0.unk4 = 0;
+}
+#else
+#pragma GLOBAL_ASM("asm/nonmatchings/core1/code_15770/func_80253428.s")
+#endif
+
+void func_802534A8(int arg0){
+    D_80282FE0.unk4 = (D_80282FE0.unk0 != NULL && arg0);
+}
+
+//zBuffer_set
+void func_802534CC(Gfx **gdl){
+    if(D_80282FE0.unk0 && getGameMode() != GAME_MODE_4_PAUSED){
+        gDPPipeSync((*gdl)++);
+        gDPSetDepthImage((*gdl)++, D_80282FE0.unk0);
+    }
+}
+
+//zBuffer_get
+void *func_80253540(void){
+    return D_80282FE0.unk0;
+}