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84 lines
3.2 KiB
ArmAsm
84 lines
3.2 KiB
ArmAsm
.include "macro.inc"
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# assembler directives
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.set noat # allow manual use of $at
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.set noreorder # don't insert nops after branches
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.set gp=64 # allow use of 64-bit general purposee registers
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.section .text
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.align 4
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glabel bzero
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/* 005050 80004450 28A1000C */ slti $at, $a1, 0xc
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/* 005054 80004454 1420001D */ bnez $at, .bytezero
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/* 005058 80004458 00041823 */ negu $v1, $a0
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/* 00505C 8000445C 30630003 */ andi $v1, $v1, 3
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/* 005060 80004460 10600003 */ beqz $v1, .blkzero
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/* 005064 80004464 00A32823 */ subu $a1, $a1, $v1
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/* 005068 80004468 A8800000 */ swl $zero, ($a0)
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/* 00506C 8000446C 00832021 */ addu $a0, $a0, $v1
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.blkzero:
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/* 005070 80004470 2401FFE0 */ li $at, -32
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/* 005074 80004474 00A13824 */ and $a3, $a1, $at
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/* 005078 80004478 10E0000C */ beqz $a3, .wordzero
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/* 00507C 8000447C 00A72823 */ subu $a1, $a1, $a3
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/* 005080 80004480 00E43821 */ addu $a3, $a3, $a0
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.L80004484:
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/* 005084 80004484 24840020 */ addiu $a0, $a0, 0x20
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/* 005088 80004488 AC80FFE0 */ sw $zero, -0x20($a0)
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/* 00508C 8000448C AC80FFE4 */ sw $zero, -0x1c($a0)
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/* 005090 80004490 AC80FFE8 */ sw $zero, -0x18($a0)
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/* 005094 80004494 AC80FFEC */ sw $zero, -0x14($a0)
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/* 005098 80004498 AC80FFF0 */ sw $zero, -0x10($a0)
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/* 00509C 8000449C AC80FFF4 */ sw $zero, -0xc($a0)
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/* 0050A0 800044A0 AC80FFF8 */ sw $zero, -8($a0)
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/* 0050A4 800044A4 1487FFF7 */ bne $a0, $a3, .L80004484
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/* 0050A8 800044A8 AC80FFFC */ sw $zero, -4($a0)
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.wordzero:
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/* 0050AC 800044AC 2401FFFC */ li $at, -4
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/* 0050B0 800044B0 00A13824 */ and $a3, $a1, $at
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/* 0050B4 800044B4 10E00005 */ beqz $a3, .bytezero
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/* 0050B8 800044B8 00A72823 */ subu $a1, $a1, $a3
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/* 0050BC 800044BC 00E43821 */ addu $a3, $a3, $a0
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.L800044C0:
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/* 0050C0 800044C0 24840004 */ addiu $a0, $a0, 4
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/* 0050C4 800044C4 1487FFFE */ bne $a0, $a3, .L800044C0
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/* 0050C8 800044C8 AC80FFFC */ sw $zero, -4($a0)
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.bytezero:
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/* 0050CC 800044CC 18A00005 */ blez $a1, .zerodone
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/* 0050D0 800044D0 00000000 */ nop
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/* 0050D4 800044D4 00A42821 */ addu $a1, $a1, $a0
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.L800044D8:
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/* 0050D8 800044D8 24840001 */ addiu $a0, $a0, 1
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/* 0050DC 800044DC 1485FFFE */ bne $a0, $a1, .L800044D8
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/* 0050E0 800044E0 A080FFFF */ sb $zero, -1($a0)
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.zerodone:
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/* 0050E4 800044E4 03E00008 */ jr $ra
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/* 0050E8 800044E8 00000000 */ nop
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/* 0050EC 800044EC 00000000 */ nop
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/* 0050F0 800044F0 00000000 */ nop
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/* 0050F4 800044F4 00000000 */ nop
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/* 0050F8 800044F8 00000000 */ nop
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/* 0050FC 800044FC 00000000 */ nop
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/* 005100 80004500 00000000 */ nop
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/* 005104 80004504 00000000 */ nop
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/* 005108 80004508 00000000 */ nop
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/* 00510C 8000450C 00000000 */ nop
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/* 005110 80004510 00000000 */ nop
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/* 005114 80004514 00000000 */ nop
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/* 005118 80004518 00000000 */ nop
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/* 00511C 8000451C 00000000 */ nop
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/* 005120 80004520 00000000 */ nop
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/* 005124 80004524 00000000 */ nop
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/* 005128 80004528 00000000 */ nop
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/* 00512C 8000452C 00000000 */ nop
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/* 005130 80004530 00000000 */ nop
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/* 005134 80004534 00000000 */ nop
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/* 005138 80004538 00000000 */ nop
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/* 00513C 8000453C 00000000 */ nop
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/* 005140 80004540 00000000 */ nop
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/* 005144 80004544 00000000 */ nop
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/* 005148 80004548 00000000 */ nop
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/* 00514C 8000454C 00000000 */ nop
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