1.8. PRINTF() WITH SEVERAL ARGUMENTS
.text:00000054 li $a3, 3
; function epilogue:
.text:00000058 lw $ra, 0x38+var_4($sp)
; set return value to 0:
.text:0000005C move $v0, $zero
; return
.text:00000060 jr $ra
.text:00000064 addiu $sp, 0x38 ; branch delay slot
Non-optimizing GCC 4.4.5
Non-optimizing GCC is more verbose:
Listing 1.60: Non-optimizing GCC 4.4.5 (assembly output)$LC0:
.ascii "a=%d; b=%d; c=%d; d=%d; e=%d; f=%d; g=%d; h=%d\012\000"
main:
; function prologue:
addiu $sp,$sp,-56
sw $31,52($sp)
sw $fp,48($sp)
move $fp,$sp
lui $28,%hi(gnu_local_gp)
addiu $28,$28,%lo(gnu_local_gp)
lui $2,%hi($LC0)
addiu $2,$2,%lo($LC0)
; pass 5th argument in stack:
li $3,4 # 0x4
sw $3,16($sp)
; pass 6th argument in stack:
li $3,5 # 0x5
sw $3,20($sp)
; pass 7th argument in stack:
li $3,6 # 0x6
sw $3,24($sp)
; pass 8th argument in stack:
li $3,7 # 0x7
sw $3,28($sp)
; pass 9th argument in stack:
li $3,8 # 0x8
sw $3,32($sp)
; pass 1st argument in $a0:
move $4,$2
; pass 2nd argument in $a1:
li $5,1 # 0x1
; pass 3rd argument in $a2:
li $6,2 # 0x2
; pass 4th argument in $a3:
li $7,3 # 0x3
; call printf():
lw $2,%call16(printf)($28)
nop
move $25,$2
jalr $25
nop
; function epilogue:
lw $28,40($fp)
; set return value to 0:
move $2,$0
move $sp,$fp
lw $31,52($sp)
lw $fp,48($sp)
addiu $sp,$sp,56
; return
j $31
nop