QtSpim is a user interface built on the Qt UI framework for Spim, a self-contained simulator that runs MIPS32 programs.
QtSpim is a user interface built on the Qt UI framework for Spim, a self-contained simulator that runs MIPS32 programs.
Questions tagged [qtspim]
287 questions
0
votes
1 answer
I get a "Attempt to execute non instruction" in qtspim?
Could someone help me figure out what's wrong with my code? I am trying to read an integer, store its value and print it to the screen/
.text
main:
li $v0, 5
la $a0, testInteger
syscall
li $v0, 4
la $a0, resultString
syscall
li $v0, 1
la…
user2966769
0
votes
1 answer
Qtspim (MIPS emulator) extra code showing up?
I installed Qtspim to try out some MIPS commands. I've written a few text files, saved with a ".asm" extension, with some commands. Here's one:
.text
.globl main
main:
addi $t0, $zero, 3
addi $t1, $zero, 5
add $t2, $t0, $t1
li $v0,…
Alexis5814
- 39
- 1
- 6
0
votes
1 answer
Start from a given address in MIPS
How can i start from the address of static data 0x10008000 and move to 0x10008008?
I don't know if i am wrong but those addresses are for 3 registers,
and you can't store in the address 0x10008001.
konsalex
- 425
- 5
- 15
0
votes
1 answer
MIPS output includes previous output when running through program again
Hello I have a program that will alphabetize a 20 character string the user enters, while also filtering out characters that are not lower case letters. I have the program alphabetizing with a recursive loop, then have a more simple filter set up to…
user3583327
- 1
- 1
0
votes
0 answers
What does the following QtSPIM/MIPS code do
What does the following QtSPIM/MIPS code do. Describe by referring to the functions of various blocks of the code (Block1, Block2, …).
Answer the questions in front of certain instructions.
Block1:
.text
main:
li $s4, 0
la $a0, input
li $v0,…
user3530064
- 11
- 1
0
votes
2 answers
writing MIPS CODES using qtspim
I want to print type 123 in console of Qtspim.
and then print out "the answer = 123".
Why my mips code does not work??
# messages.asm
.data
str: .asciiz "the answer = "
.text
main:
li $v0,5
syscall
li $v0, 4 # system call code for…
user3276213
- 1
- 2
0
votes
1 answer
Comments in MIPS accurate?
Are my comments for this MIPS program accurately explaining what each statement line is doing?
.data
str1: .asciiz "Enter the first integer: "
str2: .asciiz "Enter the second integer: "
str3: .asciiz "The sum is "
newline: .asciiz "\n"
.text …
Honinbo Shusaku
- 1,411
- 2
- 27
- 45
0
votes
1 answer
MIPS: Finding the MIN value of three ints. Getting wrong output. Why?
.data
prompt: .asciiz "Enter in 3 integers, one per line, last one being a negative number: "
sum: .asciiz "The sum is: "
min: .asciiz "The minimum is: "
max: .asciiz "The maximum is: "
mean: .asciiz "The mean is: "
variance: .asciiz…
MipsMoreLikeWhips
- 147
- 2
- 15
0
votes
0 answers
Exception 4 on mips bubblesort
So i have to write a bubblesort programm in mips using QtSpim for a class but i get an Exception 4 [Adress error in inst/data fetch]. I have searched in other topics and use the .align 2 directive before defining an array for 5 integers but it still…
Velix
- 53
- 1
- 5
0
votes
1 answer
MIPS 32 always stores 10 mul and li in $t
This is part of my code, and I don't know why, $t1 always ends up with 10, when it should be 16. At this point, the data is the following:
$t5 = 4
$t3 = 1
$t2 = 0
and $t1 is 0
(and $t0 is an address)
This is the part of the code:
mul $t1, $t3 ,…
user3063053
- 33
- 3
0
votes
1 answer
Mips exception at PC
Currently trying to develop a mips program for generating a math sequence. However, i keep getting a Mips exception at PC.
terms:
addi $sp, $sp, -12 #decrement the stack pointer by 12
sw $ra, 8($sp)
sw $s1, 4($sp)
sw $s0, 0($sp)…
Rob
- 169
- 1
- 3
- 12
0
votes
1 answer
Assembly - Qtspim
.data
hello: .asciiz "hello "
msg: .asciiz "Enter ur Name: "
buffer: .space 10
.text
.globl main
main:
li $v0 , 4
la $a0 , msg
syscall
li $v0 , 8
la $a0 , buffer
li $a1 , 20
move $t0 , $a0
syscall
li $v0 , 4
la $a0 , hello
syscall
li $v0 ,…
Abdel-rahman El-Carpenter
- 31
- 1
- 1
- 6
0
votes
1 answer
Mips: "Hello World" encounter error
I am trying to display "Hello World" (from an example found on internet) in Mips and see how it works, but I end up with errors.I first had the following error :"spim: (parser) Label is defined for the second time on line 6 of file C:Program Files…
T4000
- 231
- 1
- 7
- 24
-1
votes
1 answer
Identify original text, assembled code and machine code in QtSPIM simulator
I am using QtSPIM to learn assembly language.
An screenshot of PC SPIM text segment
How can I identify which part of this line is the original text, assembled code and machine code?
What are the major difference between assembled code and machine…
Eisha Enan
- 3
- 1
-1
votes
1 answer
QtSpim probably misbehaves when loading a value of a .byte element
I have a university assignment and I have been given this data:
.data
a: .word 10
e: .word 3, 2, 1, 0
c: .word -1
d: .byte -1,0,0,0
The question is:
What's the value $4 is holding if we implement the code ... and why:
la $10,d
addi $10,$10,-12
lw…
stratakos
- 25
- 7