How can i use the gcc create the assembler code that i want ?

This is a discussion on How can i use the gcc create the assembler code that i want ? within the C Programming forums, part of the General Programming Boards category; How can i use the gcc create the instruction what i want ? just create the simple instruction, just like ...

  1. #1
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    How can i use the gcc create the assembler code that i want ?

    How can i use the gcc create the instruction what i want ?

    just create the simple instruction, just like add cal and so on.
    do not rely on the platform.

    or i want to know where i can find help ,what i should learn~~in that manual i was lost~~

    i just wanna make a simple system in a simple machine,it has the require condition.


    cal int/byte/flo mul/sub/add/div A,B
    jmp S
    jpz N (condition)
    cmp
    ret
    call
    ld (load)
    pop
    push

    and some others

    it has a 4m flat memory 32bit

    so how can i do it?

  2. #2
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    Use "gcc -S" to produce assembler code from a C file. Or, just learn one of the asm variants and do it yourself. There's many tutorials online.

  3. #3
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    thank you, all i should do is learn and keep a positive attitude

  4. #4
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    You can't restrict the instruction set GCC uses.

    Unless you want to write your own architecture back end (target) that only has these instructions, and interface it with the mid-end. If you know how to do that, you probably wouldn't be asking this question here, though.

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