Try to print strings in assembler

Question

I am trying to print a few string in MIPS, but when i try print the first message, program prints all of them.

.data
first_msg: .ascii "Podaj pierwsza liczbe: "
second_msg: .ascii "Podaj druga liczbe: "
third_msg: .ascii "Wieksza z tych liczb jest liczba "

.text
main:
la $a0, first_msg
li $v0, 4
syscall

li $v0, 10
syscall

Sorry for my bad language and thanks for your help!

It's output: "Podaj pierwsza liczbe: Podaj druga liczbe: Wieksza z tych liczb jest liczba -- program is finished running --" I have a win xp and i use MARS 4.3 to run .asm file. — user2316721
– user2316721, Commented May 20, 2013 at 11:57

raj raj · Accepted Answer · 2013-05-20 12:21:21Z

2

You do not null-terminate the strings. Use asciiz instead of ascii.

.ascii str
Store the string in memory, but do not null-terminate it.

.asciiz str
Store the string in memory and null-terminate it.

Read this.

So, your code becomes:

.data
first_msg: .asciiz "Podaj pierwsza liczbe: "
second_msg: .asciiz "Podaj druga liczbe: "
third_msg: .asciiz "Wieksza z tych liczb jest liczba "

.text
main:
la $a0, first_msg
li $v0, 4
syscall

li $v0, 10
syscall

edited May 20, 2013 at 12:21

answered May 20, 2013 at 12:10

raj raj

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