mips - Count number of lowercase letters -

mips - Count number of lowercase letters -

so have created programme count number of lowercase letters in string. problem having when reach end of string , nl character reached, line beq $t0, $t1, end not beingness executed; continues indefinitely. i'm not sure i'm doing incorrectly.

.data msg1: .word 0:24 .text .globl main main: addu $s0, $0, $ra li $v0, 8 la $a0, msg1 la $a1, 100 syscall loop: lb $t0, 4($a0) li $t1, 0x0a beq $t0, $t1, end continue: li $t1, 'a' blt $t0, $t1, count li $t1, 'z' bgt $t0, $t1, count count: addi $t4, $t4, 1 j loop end: li $v0, 1 addu $a0, $t2, $0 syscall jr $ra

you compare 4($a0) 0x0a on each iteration of loop, never alter $a0 in loop, not advancing through string , never @ \n @ end of string.

there few other bugs in code.

use @ start of loop:

loop: lb $t0, 0($a0) addiu $a0, $a0, 1 ...

mips