oot/asm/bcmp.s

.include "macro.inc"

# assembler directives
.set noat      # allow manual use of $at
.set noreorder # don't insert nops after branches
.set gp=64     # allow use of 64-bit general purposee registers

.section .text

.align 4

glabel bcmp
/* 0074C0 800068C0 28C10010 */  slti  $at, $a2, 0x10
/* 0074C4 800068C4 14200037 */  bnez  $at, .bytecmp
/* 0074C8 800068C8 00851026 */   xor   $v0, $a0, $a1
/* 0074CC 800068CC 30420003 */  andi  $v0, $v0, 3
/* 0074D0 800068D0 14400019 */  bnez  $v0, .unalgncmp
/* 0074D4 800068D4 0004C023 */   negu  $t8, $a0
/* 0074D8 800068D8 33180003 */  andi  $t8, $t8, 3
/* 0074DC 800068DC 13000007 */  beqz  $t8, .wordcmp
/* 0074E0 800068E0 00D83023 */   subu  $a2, $a2, $t8
/* 0074E4 800068E4 00601025 */  move  $v0, $v1
/* 0074E8 800068E8 88820000 */  lwl   $v0, ($a0)
/* 0074EC 800068EC 88A30000 */  lwl   $v1, ($a1)
/* 0074F0 800068F0 00982021 */  addu  $a0, $a0, $t8
/* 0074F4 800068F4 00B82821 */  addu  $a1, $a1, $t8
/* 0074F8 800068F8 14430036 */  bne   $v0, $v1, .cmpdone
.wordcmp:
/* 0074FC 800068FC 2401FFFC */   li    $at, -4
/* 007500 80006900 00C13824 */  and   $a3, $a2, $at
/* 007504 80006904 10E00027 */  beqz  $a3, .bytecmp
/* 007508 80006908 00C73023 */   subu  $a2, $a2, $a3
/* 00750C 8000690C 00E43821 */  addu  $a3, $a3, $a0
/* 007510 80006910 8C820000 */  lw    $v0, ($a0)
.L80006914:
/* 007514 80006914 8CA30000 */  lw    $v1, ($a1)
/* 007518 80006918 24840004 */  addiu $a0, $a0, 4
/* 00751C 8000691C 24A50004 */  addiu $a1, $a1, 4
/* 007520 80006920 1443002C */  bne   $v0, $v1, .cmpdone
/* 007524 80006924 00000000 */   nop   
/* 007528 80006928 5487FFFA */  bnel  $a0, $a3, .L80006914
/* 00752C 8000692C 8C820000 */   lw    $v0, ($a0)
/* 007530 80006930 1000001C */  b     .bytecmp
/* 007534 80006934 00000000 */   nop   
.unalgncmp:
/* 007538 80006938 00053823 */  negu  $a3, $a1
/* 00753C 8000693C 30E70003 */  andi  $a3, $a3, 3
/* 007540 80006940 10E0000A */  beqz  $a3, .partaligncmp
/* 007544 80006944 00C73023 */   subu  $a2, $a2, $a3
/* 007548 80006948 00E43821 */  addu  $a3, $a3, $a0
/* 00754C 8000694C 90820000 */  lbu   $v0, ($a0)
.L80006950:
/* 007550 80006950 90A30000 */  lbu   $v1, ($a1)
/* 007554 80006954 24840001 */  addiu $a0, $a0, 1
/* 007558 80006958 24A50001 */  addiu $a1, $a1, 1
/* 00755C 8000695C 1443001D */  bne   $v0, $v1, .cmpdone
/* 007560 80006960 00000000 */   nop   
/* 007564 80006964 5487FFFA */  bnel  $a0, $a3, .L80006950
/* 007568 80006968 90820000 */   lbu   $v0, ($a0)
.partaligncmp:
/* 00756C 8000696C 2401FFFC */  li    $at, -4
/* 007570 80006970 00C13824 */  and   $a3, $a2, $at
/* 007574 80006974 10E0000B */  beqz  $a3, .bytecmp
/* 007578 80006978 00C73023 */   subu  $a2, $a2, $a3
/* 00757C 8000697C 00E43821 */  addu  $a3, $a3, $a0
/* 007580 80006980 88820000 */  lwl   $v0, ($a0)
.L80006984:
/* 007584 80006984 8CA30000 */  lw    $v1, ($a1)
/* 007588 80006988 98820003 */  lwr   $v0, 3($a0)
/* 00758C 8000698C 24840004 */  addiu $a0, $a0, 4
/* 007590 80006990 24A50004 */  addiu $a1, $a1, 4
/* 007594 80006994 1443000F */  bne   $v0, $v1, .cmpdone
/* 007598 80006998 00000000 */   nop   
/* 00759C 8000699C 5487FFF9 */  bnel  $a0, $a3, .L80006984
/* 0075A0 800069A0 88820000 */   lwl   $v0, ($a0)
.bytecmp:
/* 0075A4 800069A4 18C00009 */  blez  $a2, .L800069CC
/* 0075A8 800069A8 00C43821 */   addu  $a3, $a2, $a0
/* 0075AC 800069AC 90820000 */  lbu   $v0, ($a0)
.L800069B0:
/* 0075B0 800069B0 90A30000 */  lbu   $v1, ($a1)
/* 0075B4 800069B4 24840001 */  addiu $a0, $a0, 1
/* 0075B8 800069B8 24A50001 */  addiu $a1, $a1, 1
/* 0075BC 800069BC 14430005 */  bne   $v0, $v1, .cmpdone
/* 0075C0 800069C0 00000000 */   nop   
/* 0075C4 800069C4 5487FFFA */  bnel  $a0, $a3, .L800069B0
/* 0075C8 800069C8 90820000 */   lbu   $v0, ($a0)
.L800069CC:
/* 0075CC 800069CC 03E00008 */  jr    $ra
/* 0075D0 800069D0 00001025 */   move  $v0, $zero

.cmpdone:
/* 0075D4 800069D4 03E00008 */  jr    $ra
/* 0075D8 800069D8 24020001 */   li    $v0, 1