"nstdcall" Standard First Edition 2026
3/4/2026 - Notoriginal

Non-standard call, Notosoft standard call (who cares man)

Caller pushes arguments, return address, jumps to function.

Callee preserves all clobbered registers except accumulator (ax for x86) and the data register (dx in x86).
If the architecture does not have an equivalent accumulator and/or data register, just do nothing for them.
Stack frame is not necessary, but can be used by callee if arguments are passed.
Callee cleans stack.
Callee pops the return address into the instruction pointer.

i386 assembly example:

add:
    enter
    mov eax, [bp+8]
    add eax, [bp+12]
    leave
    ret
    
start:
    push dword 300
    push dword 86
    call add
    ; ax now has 386