}
struct data_in_s {
- unsigned char *start; /* 0 */
- unsigned char *stop; /* 4 */
- unsigned char bitpos; /* 8 */
- unsigned char byte; /* 9 */
+ unsigned char *start;
+ unsigned char *stop;
+ unsigned char bitpos;
+ unsigned char byte;
};
struct data_out_s {
return byte;
}
-unsigned char fn_59848(struct data_in_s *data_in)
+unsigned char get_next_bit(struct data_in_s *data_in)
{
- unsigned char r5;
+ unsigned char bitval;
if (data_in->bitpos == 0x80) {
data_in->byte = get_next_in_byte(data_in);
}
- r5 = data_in->bitpos & data_in->byte;
+ bitval = data_in->bitpos & data_in->byte;
data_in->bitpos >>= 1;
if (data_in->bitpos == 0) {
data_in->bitpos = 0x80;
}
- if (r5 == 0)
+ if (bitval == 0)
return 0;
return 1;
}
-unsigned int fn_598b4(struct data_in_s *r11_data, unsigned int r10_arg2)
+unsigned int get_next_bits(struct data_in_s *data_in, unsigned int bits)
{
- unsigned int r6;
- unsigned int r7;
+ unsigned int bit;
+ unsigned int next_bits;
- r6 = 1 << (r10_arg2 - 1);
+ bit = 1 << (bits - 1);
- r7 = 0;
- while (r6 != 0) {
- if (r11_data->bitpos == 0x80) {
- r11_data->byte = get_next_in_byte(r11_data);
+ next_bits = 0;
+ while (bit != 0) {
+ if (data_in->bitpos == 0x80) {
+ data_in->byte = get_next_in_byte(data_in);
}
- if ((r11_data->bitpos & r11_data->byte) != 0)
- r7 = r7 | r6;
- r6 = r6 >> 1;
+ if ((data_in->bitpos & data_in->byte) != 0)
+ next_bits = next_bits | bit;
+
+ bit = bit >> 1;
- r11_data->bitpos >>= 1;
+ data_in->bitpos >>= 1;
- if(r11_data->bitpos == 0) {
- r11_data->bitpos = 0x80;
+ if(data_in->bitpos == 0) {
+ data_in->bitpos = 0x80;
}
}
- return r7;
+ return next_bits;
}
void write_byte(unsigned char byte, struct data_out_s *data_out)
unsigned int r6;
unsigned int r7;
unsigned int r11;
- unsigned char arr_59b64[1024];
+ unsigned char window[1024];
r5 = 1;
while (1) {
while (1) {
- r2 = fn_59848(r10_data);
+ r2 = get_next_bit(r10_data);
if (r2 == 0)
break;
- r2 = fn_598b4(r10_data, 8) & 0xff;
+ r2 = get_next_bits(r10_data, 8) & 0xff;
write_byte(r2, data_out);
- arr_59b64[r5] = r2 & 0xff;
+ window[r5] = r2 & 0xff;
r5 = (r5 + 1) & 0x3ff;
}
- r11 = fn_598b4(r10_data, 0x0a);
+ r11 = get_next_bits(r10_data, 0x0a);
if(r11 == 0)
return;
- r2 = fn_598b4(r10_data, 0x04);
+ r2 = get_next_bits(r10_data, 0x04);
r7 = r2 + 1;
r6 = 0;
while (r6 <= r7) {
r2 = (r6 + r11) & 0x3ff;
- r4 = arr_59b64[r2];
+ r4 = window[r2];
write_byte(r4, data_out);
- arr_59b64[r5] = r4;
+ window[r5] = r4;
r5 = (r5 + 1) & 0x3ff;
r6++;
}