progress core2 .data section

src/core2/code_CF5F0.c

@@ -0,0 +1,87 @@
+#include <ultra64.h>
+#include "functions.h"
+#include "variables.h"
+
+//THIS VALUE 
+#ifndef CORE2_CODE_CRC2
+    #define CORE2_CODE_CRC2 0x9E44C2DC
+#endif
+
+// bk_boot segment start (skipping entry function)
+extern u8 boot_bk_boot_ROM_START[];
+// bk_boot segment end
+extern u8 boot_bk_boot_ROM_END[];
+extern u8 crc_ROM_START[];
+
+// bk_boot segment crc next word
+s32 D_803727F0 = 0;
+s32 core2_D_803727F4 = CORE2_CODE_CRC2;
+s32 D_803727F8 = 0;
+s32 D_803727FC = 0;
+
+// bk_boot segment crc values
+s32 D_80372800 = 0;
+s32 D_80372804 = 0;
+
+// bk_boot segment crc remaining words
+s32 D_80372808 = 0;
+
+// init bk_boot crc
+void func_80356580(void) {
+    D_803727FC = (s32) boot_bk_boot_ROM_START;
+    D_80372800 = 0;
+    D_80372804 = -1;
+    D_80372808 = (s32) (boot_bk_boot_ROM_END - boot_bk_boot_ROM_START);
+}
+
+// advance bk_boot crc by one word
+s32 func_803565BC(void) {
+    u32 crc1;
+    u32 crc2;
+    u8 romBytes[4];
+    u8 curByte;
+
+    if (D_803727FC != 0) {
+        if (D_80372808 != 0) {
+            crc1 = D_80372800;
+            crc2 = D_80372804;
+            osPiReadIo(D_803727FC, (u32*)romBytes);
+            curByte = romBytes[0];
+            crc1 += curByte;
+            crc2 ^= curByte << (crc1 & 0x17);
+            curByte = romBytes[1];
+            crc1 += curByte;
+            crc2 ^= curByte << (crc1 & 0x17);
+            curByte = romBytes[2];
+            crc1 += curByte;
+            crc2 ^= curByte << (crc1 & 0x17);
+            curByte = romBytes[3];
+            crc1 += curByte;
+            crc2 ^= curByte << (crc1 & 0x17);
+            D_80372800 = crc1;
+            D_80372804 = crc2;
+            D_803727FC = D_803727FC + 4;
+            D_80372808 = D_80372808 - 4;
+        } else {
+            D_803727FC = 0;
+            osPiReadIo((u32)crc_ROM_START + 0, &crc1);
+            if (crc1 != D_80372800)
+                return 0;
+            osPiReadIo((u32)crc_ROM_START + 4, &crc2);
+            if (crc2 != D_80372804)
+                return 0;
+        }
+    }
+    return 1;
+}
+
+void func_80356714(void) {
+    func_80356580();
+}
+
+void func_80356734(void) {
+    func_803565BC();
+    if (func_803565BC() == 0) {
+        func_80295864(0x10);
+    }
+}