%define	stdin	0
%define	stdout	1
%define	stderr	2

%define	SYS_nosys	0
%define	SYS_exit	1
%define	SYS_fork	2
%define	SYS_read	3
%define	SYS_write	4
; [etc...]

section	.text
align 4
access.the.bsd.kernel:
	int	80h
	ret

%macro	system	1
	mov	eax, %1
	call	access.the.bsd.kernel
%endmacro

%macro	sys.exit	0
	system	SYS_exit
%endmacro

%macro	sys.fork	0
	system	SYS_fork
%endmacro

%macro	sys.read	0
	system	SYS_read
%endmacro

%macro	sys.write	0
	system	SYS_write
%endmacro

; [etc...]