libk  Diff

;; abi definition file for x86 linux 32-bit
; vim: ft=nasm

; syscall32 numbers - syscall table must be created first!
%include "system_calls.s"

; syscall32 registers
%define sys.reg.n 6
%define sys.reg.0 eax
%define sys.reg.1 ebx
%define sys.reg.2 ecx
%define sys.reg.3 edx
%define sys.reg.4 esi
%define sys.reg.5 edi

%macro sys 1-6
	%assign i 0
	%rep %0
		mov sys.reg. %+ i, %1 ; i'm actually shocked this worked
		%rotate 1
		%assign i i+1
	%endrep 
	syscall
%endmacro

%define sys.call int 0x80 ; sysenter is allegedly the
  ; politically correct option but it does not actually
  ; appear to work without a whole lot of extra bullshit

; todo: learn vdsos