Decompile inflate_stored
This commit is contained in:
Ryan Dwyer
parent
cded7ee70a
commit
674cf57978
|
|
@ -28,7 +28,7 @@ u8 *inbuf = 0;
|
|||
u8 *outbuf = 0;
|
||||
|
||||
u32 inptr = 0;
|
||||
u32 var702012dc = 0;
|
||||
u32 wp = 0;
|
||||
u8 *var702012e0 = 0;
|
||||
|
||||
u8 border[] = { /* Order of the bit length code lengths */
|
||||
|
|
@ -467,7 +467,7 @@ glabel inflate_codes
|
|||
/* 7020057c: afb10008 */ sw $s1,0x8($sp)
|
||||
/* 70200580: 3c087020 */ lui $t0,%hi(bb)
|
||||
/* 70200584: 3c037020 */ lui $v1,%hi(bk)
|
||||
/* 70200588: 3c097020 */ lui $t1,%hi(var702012dc)
|
||||
/* 70200588: 3c097020 */ lui $t1,%hi(wp)
|
||||
/* 7020058c: 014e7821 */ addu $t7,$t2,$t6
|
||||
/* 70200590: 0158c821 */ addu $t9,$t2,$t8
|
||||
/* 70200594: 3c047020 */ lui $a0,%hi(inptr)
|
||||
|
|
@ -477,7 +477,7 @@ glabel inflate_codes
|
|||
/* 702005a4: afa50014 */ sw $a1,0x14($sp)
|
||||
/* 702005a8: 8d0813b4 */ lw $t0,%lo(bb)($t0)
|
||||
/* 702005ac: 8c6313b8 */ lw $v1,%lo(bk)($v1)
|
||||
/* 702005b0: 8d2912dc */ lw $t1,%lo(var702012dc)($t1)
|
||||
/* 702005b0: 8d2912dc */ lw $t1,%lo(wp)($t1)
|
||||
/* 702005b4: 95eb0000 */ lhu $t3,0x0($t7)
|
||||
/* 702005b8: 972c0000 */ lhu $t4,0x0($t9)
|
||||
/* 702005bc: 24c612d4 */ addiu $a2,$a2,%lo(outbuf)
|
||||
|
|
@ -697,102 +697,44 @@ glabel inflate_codes
|
|||
/* 702008bc: 00001025 */ move $v0,$zero
|
||||
);
|
||||
|
||||
GLOBAL_ASM(
|
||||
glabel inflate_stored
|
||||
/* 702008c0: 3c097020 */ lui $t1,%hi(bk)
|
||||
/* 702008c4: 252913b8 */ addiu $t1,$t1,%lo(bk)
|
||||
/* 702008c8: 8d240000 */ lw $a0,0x0($t1)
|
||||
/* 702008cc: 3c087020 */ lui $t0,%hi(bb)
|
||||
/* 702008d0: 250813b4 */ addiu $t0,$t0,%lo(bb)
|
||||
/* 702008d4: 30820007 */ andi $v0,$a0,0x7
|
||||
/* 702008d8: 8d030000 */ lw $v1,0x0($t0)
|
||||
/* 702008dc: 3c0a7020 */ lui $t2,%hi(var702012dc)
|
||||
/* 702008e0: 00822023 */ subu $a0,$a0,$v0
|
||||
/* 702008e4: 254a12dc */ addiu $t2,$t2,%lo(var702012dc)
|
||||
/* 702008e8: 2c810010 */ sltiu $at,$a0,0x10
|
||||
/* 702008ec: 8d450000 */ lw $a1,0x0($t2)
|
||||
/* 702008f0: 1020000f */ beqz $at,.L70200930
|
||||
/* 702008f4: 00431806 */ srlv $v1,$v1,$v0
|
||||
/* 702008f8: 3c067020 */ lui $a2,%hi(inbuf)
|
||||
/* 702008fc: 3c0b7020 */ lui $t3,%hi(inptr)
|
||||
/* 70200900: 256b12d8 */ addiu $t3,$t3,%lo(inptr)
|
||||
/* 70200904: 8cc612d0 */ lw $a2,%lo(inbuf)($a2)
|
||||
.L70200908:
|
||||
/* 70200908: 8d670000 */ lw $a3,0x0($t3)
|
||||
/* 7020090c: 00c77021 */ addu $t6,$a2,$a3
|
||||
/* 70200910: 91cf0000 */ lbu $t7,0x0($t6)
|
||||
/* 70200914: 24f90001 */ addiu $t9,$a3,0x1
|
||||
/* 70200918: ad790000 */ sw $t9,0x0($t3)
|
||||
/* 7020091c: 008fc004 */ sllv $t8,$t7,$a0
|
||||
/* 70200920: 24840008 */ addiu $a0,$a0,0x8
|
||||
/* 70200924: 2c810010 */ sltiu $at,$a0,0x10
|
||||
/* 70200928: 1420fff7 */ bnez $at,.L70200908
|
||||
/* 7020092c: 00781825 */ or $v1,$v1,$t8
|
||||
.L70200930:
|
||||
/* 70200930: 2484fff0 */ addiu $a0,$a0,-16
|
||||
/* 70200934: 3c0b7020 */ lui $t3,%hi(inptr)
|
||||
/* 70200938: 3062ffff */ andi $v0,$v1,0xffff
|
||||
/* 7020093c: 00036c02 */ srl $t5,$v1,0x10
|
||||
/* 70200940: 2c810010 */ sltiu $at,$a0,0x10
|
||||
/* 70200944: 256b12d8 */ addiu $t3,$t3,%lo(inptr)
|
||||
/* 70200948: 1020000d */ beqz $at,.L70200980
|
||||
/* 7020094c: 01a01825 */ move $v1,$t5
|
||||
/* 70200950: 3c067020 */ lui $a2,%hi(inbuf)
|
||||
/* 70200954: 8cc612d0 */ lw $a2,%lo(inbuf)($a2)
|
||||
.L70200958:
|
||||
/* 70200958: 8d670000 */ lw $a3,0x0($t3)
|
||||
/* 7020095c: 00c77021 */ addu $t6,$a2,$a3
|
||||
/* 70200960: 91cf0000 */ lbu $t7,0x0($t6)
|
||||
/* 70200964: 24f90001 */ addiu $t9,$a3,0x1
|
||||
/* 70200968: ad790000 */ sw $t9,0x0($t3)
|
||||
/* 7020096c: 008fc004 */ sllv $t8,$t7,$a0
|
||||
/* 70200970: 24840008 */ addiu $a0,$a0,0x8
|
||||
/* 70200974: 2c810010 */ sltiu $at,$a0,0x10
|
||||
/* 70200978: 1420fff7 */ bnez $at,.L70200958
|
||||
/* 7020097c: 00781825 */ or $v1,$v1,$t8
|
||||
.L70200980:
|
||||
/* 70200980: 00403025 */ move $a2,$v0
|
||||
/* 70200984: 00036c02 */ srl $t5,$v1,0x10
|
||||
/* 70200988: 01a01825 */ move $v1,$t5
|
||||
/* 7020098c: 2484fff0 */ addiu $a0,$a0,-16
|
||||
/* 70200990: 1040001b */ beqz $v0,.L70200a00
|
||||
/* 70200994: 2442ffff */ addiu $v0,$v0,-1
|
||||
/* 70200998: 3c0c7020 */ lui $t4,%hi(outbuf)
|
||||
/* 7020099c: 258c12d4 */ addiu $t4,$t4,%lo(outbuf)
|
||||
.L702009a0:
|
||||
/* 702009a0: 2c810008 */ sltiu $at,$a0,0x8
|
||||
/* 702009a4: 1020000c */ beqz $at,.L702009d8
|
||||
/* 702009a8: 3c067020 */ lui $a2,%hi(inbuf)
|
||||
/* 702009ac: 8cc612d0 */ lw $a2,%lo(inbuf)($a2)
|
||||
.L702009b0:
|
||||
/* 702009b0: 8d670000 */ lw $a3,0x0($t3)
|
||||
/* 702009b4: 00c77021 */ addu $t6,$a2,$a3
|
||||
/* 702009b8: 91cf0000 */ lbu $t7,0x0($t6)
|
||||
/* 702009bc: 24f90001 */ addiu $t9,$a3,0x1
|
||||
/* 702009c0: ad790000 */ sw $t9,0x0($t3)
|
||||
/* 702009c4: 008fc004 */ sllv $t8,$t7,$a0
|
||||
/* 702009c8: 24840008 */ addiu $a0,$a0,0x8
|
||||
/* 702009cc: 2c810008 */ sltiu $at,$a0,0x8
|
||||
/* 702009d0: 1420fff7 */ bnez $at,.L702009b0
|
||||
/* 702009d4: 00781825 */ or $v1,$v1,$t8
|
||||
.L702009d8:
|
||||
/* 702009d8: 8d8d0000 */ lw $t5,0x0($t4)
|
||||
/* 702009dc: 00403025 */ move $a2,$v0
|
||||
/* 702009e0: 00037a02 */ srl $t7,$v1,0x8
|
||||
/* 702009e4: 01a57021 */ addu $t6,$t5,$a1
|
||||
/* 702009e8: a1c30000 */ sb $v1,0x0($t6)
|
||||
/* 702009ec: 24a50001 */ addiu $a1,$a1,0x1
|
||||
/* 702009f0: 01e01825 */ move $v1,$t7
|
||||
/* 702009f4: 2484fff8 */ addiu $a0,$a0,-8
|
||||
/* 702009f8: 1440ffe9 */ bnez $v0,.L702009a0
|
||||
/* 702009fc: 2442ffff */ addiu $v0,$v0,-1
|
||||
.L70200a00:
|
||||
/* 70200a00: ad450000 */ sw $a1,0x0($t2)
|
||||
/* 70200a04: ad030000 */ sw $v1,0x0($t0)
|
||||
/* 70200a08: ad240000 */ sw $a0,0x0($t1)
|
||||
/* 70200a0c: 03e00008 */ jr $ra
|
||||
/* 70200a10: 00001025 */ move $v0,$zero
|
||||
);
|
||||
u32 inflate_stored(void)
|
||||
{
|
||||
s32 n; /* number of bytes in block */
|
||||
s32 w; /* current window position */
|
||||
register u32 b; /* bit buffer */
|
||||
register u32 k; /* number of bits in bit buffer */
|
||||
|
||||
/* make local copies of globals */
|
||||
b = bb; /* initialize bit buffer */
|
||||
k = bk;
|
||||
w = wp; /* initialize window position */
|
||||
|
||||
/* go to byte boundary */
|
||||
n = k & 7;
|
||||
DUMPBITS(n);
|
||||
|
||||
/* get the length and its complement */
|
||||
NEEDBITS(16)
|
||||
n = (b & 0xffff);
|
||||
DUMPBITS(16)
|
||||
|
||||
NEEDBITS(16)
|
||||
DUMPBITS(16)
|
||||
|
||||
/* read and output the compressed data */
|
||||
while (n--) {
|
||||
NEEDBITS(8)
|
||||
outbuf[w++] = (u8)b;
|
||||
|
||||
DUMPBITS(8)
|
||||
}
|
||||
|
||||
/* restore the globals from the locals */
|
||||
wp = w; /* restore global window pointer */
|
||||
bb = b; /* restore global bit buffer */
|
||||
bk = k;
|
||||
return 0;
|
||||
}
|
||||
|
||||
u32 inflate_fixed(void)
|
||||
{
|
||||
|
|
@ -1236,7 +1178,7 @@ u32 inflate(void)
|
|||
u32 r;
|
||||
u32 s1;
|
||||
|
||||
var702012dc = 0;
|
||||
wp = 0;
|
||||
bk = 0;
|
||||
bb = 0;
|
||||
s1 = 0;
|
||||
|
|
@ -1269,10 +1211,10 @@ u32 inflate1173(void *src, void *dst, void *buffer)
|
|||
var702012e0 = buffer;
|
||||
inbuf += 2;
|
||||
inbuf += 3;
|
||||
var702012dc = 0;
|
||||
wp = 0;
|
||||
inptr = 0;
|
||||
|
||||
inflate();
|
||||
|
||||
return var702012dc;
|
||||
return wp;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue