I've just started to learn MIPS, and as part of our assignment, I'm trying to save a counter value that runs inside a loop.
So, I was able to exit the loop, thanks to Michael. But now the counter will not increase, I noticed that it won't enter the incount label.
.text
.globl main
main:
# get string from user
la $a0, str1 # load the addr of the given string into $a0.
li $v0, 4 # 4 is the print_string syscall.
syscall # do the syscall.
li $v0, 8 # take in input
la $a0, buffer # load byte space into addr
li $a1, 10 # allot the byte space for the string
move $t0, $a0 # save the string into $to
syscall
# get char from user
la $a0, char1 # load the addr of the given char into $a0.
li $v0, 4 # 4 is the print_string syscall.
syscall # do the syscall.
li $v0, 8 # take in input
la $a0, buffer # load byte space into addr
li $a1, 10 # allot the byte space for the char
move $t1, $a0 # save the char into $t1
syscall
addi $s2, $zero,0 # s2 holds the counter
loop:
lb $t3, ($t0)
beq $t3, $t1, incount # go to incount if char was found
beqz $t3, exit # go to exit if we arrived to the end of the string
addi $t0, $t0, 1 # incrase t3 by 1
j loop # go to loop
incount:
addi $s2, $s2, 1 # increase the counter by 1
addi $t0, $t0, 1 # incrase char pos by 1
j loop # go back to loop
exit:
la $a0, ($s2) # counter to be printed
li $v0, 1 # 1 is the print_int syscall.
syscall
li $v0, 10 # return control to SPIM OS
syscall
.data
buffer: .space 10
str1: .asciiz "Please enter your string: "
char1: .asciiz "Now, please enter your char of choice: "
# end countchar.s
Thanks in advance
