#----------------------------------------------------------------------------
# hello.s
# by TC Bressoud
#----------------------------------------------------------------------------

	# Start with the data section.  Define the strings used
	# by the program.  Global integer and float data would have
	# similar definitions.
	
	.data
astr:	.string	"Enter a: "          # The .string directive zero terminates
s:	.string	"%d"
hello:	.string	"Hello World = %d\n"
bye:	.string	"Leaving now"

	# Group together all the executable code in the .text section
	
	.text
	.globl	main
main:
	# Prologue
	pushl	%ebp
	movl	%esp, %ebp
	andl	$0xffffff00, %esp  # align esp on 16 byte boundary to begin
	subl	$32, %esp
	
	movl	$astr, 4(%esp)     # printf(astr)
	movl	$1, (%esp)
	call	__printf_chk
	
	leal	28(%esp), %eax     # scanf(s, &a), where a is in the stack frame
	movl	%eax, 4(%esp)
	movl	$s, (%esp)
	call	__isoc99_scanf

	# Instructions below are translation of the if-statement
	
	movl	28(%esp), %eax
	testl	%eax, %eax
	je	nottrue
	
	movl	%eax, 8(%esp)
	movl	$hello, 4(%esp)
	movl	$1, (%esp)
	call	__printf_chk

nottrue:
	movl	$bye, (%esp)
	call	puts

	# Epilogue
	leave
	ret