CODEWITHSUNDEEP
csvassemblymipsfile-readatoi
Gilson Junior Soares
Gilson Junior Soares

Reputation: 11

Reading data from .csv file on MIPS

I have to develop a project where I must read data from a .csv file like this:

10,12.1
15,25.6
15,25.1
...

so I tried to read as follows:

.data 
    file: .asciiz "/home/gilson/Documents/test.csv" 
    .word 0
    buffer: .space 4
.text
main:
    #open file
    li $v0, 13
    la $a0, file
    add $a1, $zero, $zero
    add $a2, $zero, $zero
    syscall
    add $s0, $v0, $zero
    #read 4 bytes from file
    li $v0, 14
    add $a0, $s0, $zero
    la $a1, buffer
    li $a2, 4
    syscall
    #print
    li $v0, 1
    lw $a0, buffer
    syscall

done: 
    li $v0, 16
    add $a0, $s0, $zero
    syscall

exit:
    li $v0, 10
    syscall

and I had the following output:

824979505
-- program is finished running --

so I changed the print syscall to print string and the output was:

...
li $v0, 4
la $a0, buffer
syscall
...

10,1

as I could see he is reading from the file in character, not in number format. I would like to know if there is a way to directly read the numbers or do I have to necessarily use some procedure to convert from char to int?

Upvotes: 1

Views: 779

Answers (1)

Kumar Anil Chaurasiya
Kumar Anil Chaurasiya

Reputation: 351

Numbers which you are reading from the files will be in text format. You need to convert(typecast) them from text to number.

Upvotes: 0

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