156 lines
2.5 KiB
Plaintext
156 lines
2.5 KiB
Plaintext
.data
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.text
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__start:
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jal main
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li $v0, 10
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syscall
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fact :
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subi $sp, $sp, 4
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sw $fp, 0($sp)
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move $fp, $sp
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subi $sp, $sp, 4
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sw $ra, 0($sp)
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lw $t0, 4($fp) #variable argument $f
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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li $t0, 1
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t2, 0($sp)
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addi $sp, $sp, 4
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lw $t1, 0($sp)
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addi $sp, $sp, 4
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li $t0, 1
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beq $t1, $t2 e4
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li $t0, 0
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e4:
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t1, 0($sp)
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addi $sp, $sp, 4
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beq $zero, $t1, e0
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j e2
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e0 :
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lw $t0, 4($fp) #variable argument $f
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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li $t0, 0
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t2, 0($sp)
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addi $sp, $sp, 4
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lw $t1, 0($sp)
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addi $sp, $sp, 4
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li $t0, 1
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beq $t1, $t2 e5
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li $t0, 0
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e5:
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t2, 0($sp)
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addi $sp, $sp, 4
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or $t0, $zero, $t2
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j e3
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e2 :
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move $t0 $t1
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e3 :
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t0, 0($sp)
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addi $sp, $sp, 4
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beq $t0 $zero e6
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li $t0, 1
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t0, 0($sp)
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addi $sp, $sp, 4
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sw $t0 8($fp) #Adresse de retour
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addi $sp, $sp 0 # desallocation variables locales
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lw $ra, 0($sp)
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addi $sp, $sp, 4
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lw $fp, 0($sp)
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addi $sp, $sp, 4
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jr $ra
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j e7
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e6:
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subi $sp, $sp, 4 #Val Retour
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lw $t0, 4($fp) #variable argument $f
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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li $t0, 1
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t2, 0($sp)
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addi $sp, $sp, 4
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lw $t1, 0($sp)
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addi $sp, $sp, 4
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sub $t0, $t1, $t2
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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jal fact
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addi $sp, $sp, 4 #désalocation des arguments
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lw $t0, 4($fp) #variable argument $f
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t2, 0($sp)
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addi $sp, $sp, 4
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lw $t1, 0($sp)
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addi $sp, $sp, 4
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mult $t1, $t2
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mflo $t0
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t0, 0($sp)
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addi $sp, $sp, 4
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sw $t0 8($fp) #Adresse de retour
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addi $sp, $sp 0 # desallocation variables locales
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lw $ra, 0($sp)
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addi $sp, $sp, 4
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lw $fp, 0($sp)
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addi $sp, $sp, 4
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jr $ra
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e7:
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addi $sp, $sp 0 # desallocation variables locales
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lw $ra, 0($sp)
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addi $sp, $sp, 4
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lw $fp, 0($sp)
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addi $sp, $sp, 4
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addi $sp, $sp, 4 #ignore valeur de retour
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jr $ra
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main :
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subi $sp, $sp, 4
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sw $fp, 0($sp)
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move $fp, $sp
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subi $sp, $sp, 4
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sw $ra, 0($sp)
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subi $sp, $sp, 4
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li $v0 5
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syscall
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move $t0, $v0
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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lw $t0, 0($sp)
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addi $sp, $sp, 4
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sw $t0, -8($fp) #variable locale
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subi $sp, $sp, 4 #Val Retour
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lw $t0, -8($fp) #variable locale
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subi $sp, $sp, 4
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sw $t0, 0($sp)
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jal fact
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addi $sp, $sp, 4 #désalocation des arguments
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lw $t0, 0($sp)
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addi $sp, $sp, 4
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move $a0, $t0
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li $v0, 1
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syscall
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li $a0, '\n'
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li $v0, 11
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syscall
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addi $sp, $sp 4 # desallocation variables locales
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lw $ra, 0($sp)
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addi $sp, $sp, 4
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lw $fp, 0($sp)
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addi $sp, $sp, 4
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addi $sp, $sp, 4 #ignore valeur de retour
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jr $ra
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