diff options
Diffstat (limited to 'mips/chapter-3/exercise-6.s')
| -rw-r--r-- | mips/chapter-3/exercise-6.s | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/mips/chapter-3/exercise-6.s b/mips/chapter-3/exercise-6.s deleted file mode 100644 index 8c1b6fd..0000000 --- a/mips/chapter-3/exercise-6.s +++ /dev/null @@ -1,47 +0,0 @@ -# print(hex(0b10101)) - .text -main: - li $t0, 21 # t0 = 0b10101 - li $t1, 0 # t1 = 0 - li $t9, 9 # t9 = 9 - -reverse: - beqz $t0, done # if (!t0) goto done - andi $t2, $t0, 0xf # t2 = t0 & 0xf - sra $t0, $t0, 4 # t0 >>= 4 - sll $t1, $t1, 4 # t1 <<= 4 - add $t1, $t1, $t2 # t1 += t2 - j reverse # goto reverse -done: - - li $v0, 11 # print character - li $a0, 48 # 0 - syscall - li $v0, 11 # print character - li $a0, 120 # x - syscall - bnez $t1, print # if (!t1) goto print - li $v0, 11 # print character - li $a0, 48 # 0 - syscall - j end # goto end - -print: - beqz $t1, end # if (!t1) goto end - andi $t2, $t1, 0xf # t2 = t1 & 0xf - sra $t1, $t1, 4 # t1 >>= 4 - addi $a0, $t2, 48 # a0 = chr(t2), sort of - ble $t2, $t9, put # if (t2 <= 9) goto put - addi $a0, $a0, 7 # a0 += 7 -put: - li $v0, 11 # print character at a0 - syscall - j print # goto print -end: - - li $v0, 11 # print character - li $a0, 10 # newline - syscall - - li $v0, 10 # terminate - syscall |