Slide 6.10: Jump and branch instructions (cont.)

Jump and Branch Instructions (Cont.)

bgt rs, rt, label # branch on greater: Branches to the specified label when the contents of rs are greater than the contents of rt, when the contents of rs are greater than the immediate value. The comparison treats the comparands as signed 32-bit values.
bge rs, rt, label # branch on greater or equal: Branches to the specified label when the contents of rs are greater than or equal to the contents of rt, or it can branch when the contents of rs are greater than or equal to the immediate value. The comparison treats the comparands as signed 32-bit values.
bltu rs, rt, label # branch on less than unsigned: Branches to the label when the contents of rs are less than the contents of rt, or it can branch when the contents of rs are less than the immediate value. The comparison treats the comparands as unsigned 32-bit values.
bgtz rs, label # branch on greater than zero: Branches to the label when the contents of rs are greater than zero.

bge bgeu beqz

`bge`	`bgeu`	`beqz`
.text li $t0, 0xFF li $t1, 0 bge $t0, $t1, T li $a0, 1 j put T: li $a0, 2 put: li $v0, 1 syscall	.text li $t0, -1 bgeu $t0, -2, T li $a0, 1 j put T: li $a0, 2 put: li $v0, 1 syscall	.data X: .byte 0xFF .text lb $t0, X add $t0, $t0, 1 beqz $t0, T li $a0, 1 j put T: li $a0, 2 put: li $v0, 1 syscall
Output	Output	Output

       .text
       li   $t0, 0xFF 
       li   $t1, 0 
       bge  $t0, $t1, T
       li   $a0, 1 
       j    put 
 T:    li   $a0, 2
 put:  li   $v0, 1
       syscall

       .text
       li    $t0, -1
       bgeu  $t0, -2, T
       li    $a0, 1 
       j     put 
 T:    li    $a0, 2
 put:  li    $v0, 1
       syscall

       .data
 X:    .byte  0xFF

       .text 
       lb    $t0, X
       add   $t0, $t0, 1
       beqz  $t0, T
       li    $a0, 1
       j     put
 T:    li    $a0, 2
 put:  li    $v0, 1
       syscall

Output Output Output