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For my task, I have to perform the multiplication of 2 floating point values in a double data type. So, after multiplying 2 values, I had problems in the code with saving the value and printing. I think the code is correct, but MARS doesn't think so. Because, the compiler tells me, that "s.s": Too many or incorrectly formatted operands. Expected: s.s $f1,($t2). So can you explain to me, what's going on?

        .data
a:      .float 2.5
b:      .float 2.5
result: .float 0.0
fmt:    .asciiz "%f\n"
        .text
        .globl main
        .ent main

main:
        l.s $f12, a
        l.s $f14, b
        mul.s $f16, $f12, $f14
        #Here troble is appearing
        s.s result, $f16

        li $v0, 2
        la $a0, result
        syscall

        li $v0, 4
        la $a0, fmt
        syscall

        li $v0, 10
        syscall

        .end main
Marian Klösler
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Qulymzhanov Nursat
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  • Like most RISCs, the register comes first, the address comes second, for both load and store. So it's not always destination-first. Look again at the correct example. Also note that you're depending on the assembler to expand `result` to a valid addressing mode, probably using an extra instruction and a temporary register. – Peter Cordes Feb 08 '23 at 08:16

0 Answers0