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31 lines
437 B
NASM
31 lines
437 B
NASM
.data
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found: .asciiz "Tim thay ky tu tai vi tri: "
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chrArr: .asciiz "Computer Architecture CSE-HCMUT"
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chr: .word 'e'
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pos: .word 0
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.text
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.globl main
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main:
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la $a0, found
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li $v0, 4
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syscall
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la $a0, chrArr
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addi $t1, $zero, 0
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lw $t2, chr
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while:
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add $a1, $a0, $t1
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lb $t0, 0($a1)
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beq $t0, $t2, done
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beq $t0, $zero, null
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addi $t1, $t1, 1
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j while
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null:
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li $t1, -1
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done:
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move $a0, $t1
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li $v0, 1
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syscall
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exit:
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li $v0, 10
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syscall
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