#	;; printenv.s

#	should be a replacement for /bin/printenv ... ;-)
#

#include <asm/unistd_64.h>	


	.file	"printenv.s"

	.data
_separator:
	.string " "
_eoln:
	.string "\n"

	.text
	.globl printenv

#  	first argument goes into %rdi  == 1, stdout
#	second argument goes into %rsi == pointer to str1 
#       third argument goes into %rdx  == number of bytes in str1
	
	
printenv:
	xor	%r10,%r10	# we'll use %r10 for our "zero" register
	
	pop	%r8		# this is argc...

_around:
	pop	%rsi		# this is the next *argv --- could test here since you are through when this a NULL pointer!
	dec	%r8
	jnz	_around

	pop	%rsi

_environ:
	pop	%rsi
	cmp	%rsi,%r10
	jz	_finish

	mov	$1,%rdi
	call	writestr

	mov	$1,%rdi
	lea	_eoln,%rsi
	call	writestr

	jmp	_environ
	

_finish:
	mov	$0, %rdi	# and exit with a zero status
	mov	$__NR_exit, %rax	# syscall = 60 is exit
	syscall