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# print -35 in 8-bit two-complement binary
.text
main:
li $t0, -35 # t0 = -35
li $t1, 0 # t1 = 0
li $t8, 8 # t8 = 8
reverse:
beqz $t8, prefix # if (!t8) goto prefix
andi $t2, $t0, 1 # t2 = t0 & 1
sra $t0, $t0, 1 # t0 >>= 1
sll $t1, $t1, 1 # t1 <<= 1
add $t1, $t1, $t2 # t1 += t2
addi $t8, $t8, -1 # t8--
j reverse # goto reverse
prefix:
li $v0, 11 # print character
li $a0, 48 # 0
syscall
li $v0, 11 # print character
li $a0, 98 # b
syscall
li $t8, 8 # t8 = 8
print:
beqz $t8, end # if (!t8) goto end
li $v0, 1 # print integre
andi $a0, $t1, 1 # a0 = t1 & 1
syscall
sra $t1, $t1, 1 # t1 >>= 1
addi $t8, $t8, -1 # t8--
j print # goto print
end:
li $v0, 11 # print character
li $a0, 10 # newline
syscall
li $v0, 10 # terminate
syscall
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