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

[Wener]

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?

[memcpy]

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.

[Wener]

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

[cyberfish]

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.