1.14. CONDITIONAL JUMPS
.text:00000000 arg_0 = 0
.text:00000000 arg_4 = 4
.text:00000000
.text:00000000 addiu $sp, -0x20
.text:00000004 sw $ra, 0x20+var_4($sp)
.text:00000008 sw $fp, 0x20+var_8($sp)
.text:0000000C move $fp, $sp
.text:00000010 la $gp, __gnu_local_gp
.text:00000018 sw $gp, 0x20+var_10($sp)
; store input values into local stack:
.text:0000001C sw $a0, 0x20+arg_0($fp)
.text:00000020 sw $a1, 0x20+arg_4($fp)
; reload them.
.text:00000024 lw $v1, 0x20+arg_0($fp)
.text:00000028 lw $v0, 0x20+arg_4($fp)
; $v0=b
; $v1=a
.text:0000002C or $at, $zero ; NOP
; this is pseudoinstruction. in fact, "slt $v0,$v0,$v1" is there.
; so $v0 will be set to 1 if $v0<$v1 (b<a) or to 0 if otherwise:
.text:00000030 slt $v0, $v1
; jump to loc_5c, if condition is not true.
; this is pseudoinstruction. in fact, "beq $v0,$zero,loc_5c" is there:
.text:00000034 beqz $v0, loc_5C
; print "a>b" and finish
.text:00000038 or $at, $zero ; branch delay slot, NOP
.text:0000003C lui $v0, (unk_230 >> 16) # "a>b"
.text:00000040 addiu $a0, $v0, (unk_230 & 0xFFFF) # "a>b"
.text:00000044 lw $v0, (puts & 0xFFFF)($gp)
.text:00000048 or $at, $zero ; NOP
.text:0000004C move $t9, $v0
.text:00000050 jalr $t9
.text:00000054 or $at, $zero ; branch delay slot, NOP
.text:00000058 lw $gp, 0x20+var_10($fp)
.text:0000005C
.text:0000005C loc_5C: # CODE XREF: f_signed+34
.text:0000005C lw $v1, 0x20+arg_0($fp)
.text:00000060 lw $v0, 0x20+arg_4($fp)
.text:00000064 or $at, $zero ; NOP
; check if a==b, jump to loc_90 if its not true':
.text:00000068 bne $v1, $v0, loc_90
.text:0000006C or $at, $zero ; branch delay slot, NOP
; condition is true, so print "a==b" and finish:
.text:00000070 lui $v0, (aAB >> 16) # "a==b"
.text:00000074 addiu $a0, $v0, (aAB & 0xFFFF) # "a==b"
.text:00000078 lw $v0, (puts & 0xFFFF)($gp)
.text:0000007C or $at, $zero ; NOP
.text:00000080 move $t9, $v0
.text:00000084 jalr $t9
.text:00000088 or $at, $zero ; branch delay slot, NOP
.text:0000008C lw $gp, 0x20+var_10($fp)
.text:00000090
.text:00000090 loc_90: # CODE XREF: f_signed+68
.text:00000090 lw $v1, 0x20+arg_0($fp)
.text:00000094 lw $v0, 0x20+arg_4($fp)
.text:00000098 or $at, $zero ; NOP
; check if $v1<$v0 (a<b), set $v0 to 1 if condition is true:
.text:0000009C slt $v0, $v1, $v0
; if condition is not true (i.e., $v0==0), jump to loc_c8:
.text:000000A0 beqz $v0, loc_C8
.text:000000A4 or $at, $zero ; branch delay slot, NOP
; condition is true, print "a<b" and finish
.text:000000A8 lui $v0, (aAB_0 >> 16) # "a<b"
.text:000000AC addiu $a0, $v0, (aAB_0 & 0xFFFF) # "a<b"
.text:000000B0 lw $v0, (puts & 0xFFFF)($gp)
.text:000000B4 or $at, $zero ; NOP
.text:000000B8 move $t9, $v0
.text:000000BC jalr $t9
.text:000000C0 or $at, $zero ; branch delay slot, NOP
.text:000000C4 lw $gp, 0x20+var_10($fp)