everything needed implemented, but it's broken. probably fn_5993c is wrong

[rsbs2] / rsb-lz.c

diff --git a/rsb-lz.c b/rsb-lz.c
index 4f077b14cca58b67e6c0d4f0afe5087ac741144c..ddd9a53ce0aa884cadbfc094a8a7d44876f98b9a 100644 (file)
--- a/rsb-lz.c
+++ b/rsb-lz.c
@@ -436,29 +436,66 @@ void fn_59578(unsigned int arg1, unsigned int arg2, unsigned int arg3, unsigned
        fprintf(stderr,"%s\n", __func__);
 }
 
-void fn_59788()
+void fn_59788(const char *fname)
 {
-       fprintf(stderr,"error extracting...\n");
+       fprintf(stderr,"%s: error extracting...\n", fname);
        exit(1);
 }
 
 struct s_59b78 {
-       unsigned char *start;
-       unsigned char *stop;
+       unsigned char *start; /* 0 */
+       unsigned char *stop; /* 4 */
        unsigned char y; /* 8 */
        unsigned char x; /* 9 */
 };
 
-unsigned int fn_59848(struct s_59b78 *data)
+unsigned int fn_597c8(struct s_59b78 *r6_data)
 {
-       fprintf(stderr,"%s\n", __func__);
-       return 0;
+       unsigned char *r0;
+       unsigned char *r1;
+       unsigned char r5;
+
+       r5 = 0;
+
+       r0 = r6_data->start;
+       r1 = r6_data->stop;
+
+       if (r1 < r0)
+               fn_59788(__func__);
+
+       r5 = *r0;
+       r0++;
+       r6_data->start = r0;
+
+       return r5;
 }
 
-unsigned int fn_597c8(struct s_59b78 *r11_data)
+unsigned int fn_59848(struct s_59b78 *r6_data)
 {
-       fprintf(stderr,"%s\n", __func__);
-       return 0;
+       unsigned int r1;
+       unsigned int r2;
+       unsigned int r5;
+
+       r1 = r6_data->y;
+       if (r1 == 0x80) {
+               r6_data->x = fn_597c8(r6_data);
+       }
+       r1 = r6_data->y;
+       r2 = r6_data->x;
+       r1 = r1 & r2;
+       r5 = r1 & 0xff;
+
+       r1 = r6_data->y;
+       r1 = r1 >> 1;
+       r6_data->y = r1;
+       if (r1 == 0)
+               r1 = 0x80;
+       
+       r6_data->y = r1;
+       if (r5 == 0)
+               return 0;
+
+       return 1;
 }
 
 unsigned int fn_598b4(struct s_59b78 *r11_data, unsigned int r10_arg2)
@@ -468,8 +505,6 @@ unsigned int fn_598b4(struct s_59b78 *r11_data, unsigned int r10_arg2)
        unsigned int r6;
        unsigned int r7;
 
-       fprintf(stderr,"%s\n", __func__);
-
        r1 = r10_arg2 - 1;
        r6 = 1 << r1;
 
@@ -509,8 +544,10 @@ void fn_5980c(unsigned int arg1, unsigned int mem[])
        r1 = (unsigned char*)mem[0];
        r2 = (unsigned char*)mem[1];
 
-       if (r1 >= r2)
-               fn_59788();
+       if (r1 > r2) {
+               printf("r1: 0x%08x, r2: 0x%08x\n", (unsigned int)r1, (unsigned int)r2);
+               fn_59788(__func__);
+       }
 
        *r1 = arg1 & 0xff;
 
@@ -533,6 +570,7 @@ void fn_5993c(struct s_59b78 *data, unsigned int mem[])
        do {
                do {
                        r2 = fn_59848(data);
+                       printf("r2: 0x%x\n", r2);
                        if (r2 == 0)
                                break;
 
@@ -632,14 +670,15 @@ void extract_lz_file(unsigned char *buf, unsigned char *name)
        fn_59560(0x1005);
 
        if (*((unsigned int*)r11) != LZ_MAGIC)
-               fn_59788();
+               fn_59788(__func__);
+
        r3 = r11 + 4;
        r5 = *((unsigned int*)r3);
        printf(", Length: %d\n", r5);
 
        r3 = r7 + r5;
        if (r3 > r10)
-               fn_59788();
+               fn_59788(__func__);
        
        struct1.start = r11 + 8;
        struct1.stop = r5 + r11;
@@ -655,7 +694,7 @@ void extract_lz_file(unsigned char *buf, unsigned char *name)
        r5 = *((unsigned int*)r3);
 
        if (crc_check_59684(r7, r5, 0x46335053) != 0)
-               fn_59788();
+               fn_59788(__func__);
        
        fn_59508();