mirror of
https://github.com/tiennm99/KTMT.git
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88 lines
1.1 KiB
NASM
88 lines
1.1 KiB
NASM
.data
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a: .word 0
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b: .word 0
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c: .word 0
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d: .word 0
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x: .word 0
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kq: .word 0
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nhap_a: .asciiz "Nhap a: "
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nhap_b: .asciiz "Nhap b: "
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nhap_c: .asciiz "Nhap c: "
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nhap_d: .asciiz "Nhap d: "
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nhap_x: .asciiz "Nhap x: "
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xuat: .asciiz "Ket qua cua bieu thuc la: "
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.text
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.globl main
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main:
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#Nhap a
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la $a0, nhap_a
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li $v0, 4
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syscall
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li $v0, 5
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syscall
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sw $v0, a
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#Nhap b
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la $a0, nhap_b
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li $v0, 4
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syscall
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li $v0, 5
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syscall
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sw $v0, b
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#Nhap c
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la $a0, nhap_c
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li $v0, 4
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syscall
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li $v0, 5
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syscall
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sw $v0, c
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#Nhap d
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la $a0, nhap_d
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li $v0, 4
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syscall
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li $v0, 5
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syscall
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sw $v0, d
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#Nhap x
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la $a0, nhap_x
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li $v0, 4
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syscall
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li $v0, 5
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syscall
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sw $v0, x
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#Xu ly
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lw $a0, x
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lw $a1, a
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jal times
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ori $s0, $v0, 0
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lw $a1, b
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sub $s0, $s0, $a1
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ori $a1, $s0, 0
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jal times
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ori $s0, $v0, 0
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lw $a1, c
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sub $s0, $s0, $a1
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ori $a1, $s0, 0
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jal times
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ori $s0, $v0, 0
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lw $a1, d
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add $s0, $s0, $a1
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sw $s0, kq
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j exit
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times:
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ori $t0, $a0, 0
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li $t1, 0
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loop: beq $t0, 0, return
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add $t1, $t1, $a1
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addi $t0, $t0, -1
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j loop
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return: ori $v0, $t1, 0
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jr $ra
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exit:
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la $a0, xuat
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li $v0, 4
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syscall
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lw $a0, kq
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li $v0, 1
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syscall
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li $v0, 10
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syscall |