csapp/code/asm/110-cc.64sa at master · 3AceShowHand/csapp · GitHub

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	.file	"110-cc.c"
	.text
	.globl	comp
	.type	comp, @function
/* $begin 110-cc-s 5 */
# int comp(data_t a, data_t b)
# a in \rdireg{}, b in \rsireg{}
comp:
	cmpq	%rsi, %rdi   # Compare a:b # line:asm:cc:cmpq
	setl	%al          # Set low order byte of \eaxreg{} to 0 or 1
	movzbl	%al, %eax    # Clear rest of \eaxreg{} (and rest of \raxreg) # line:asm:cc:movzbl
	ret
/* $end 110-cc-s 5 */
	.size	comp, .-comp
	.globl	ge
	.type	ge, @function
ge:
	cmpb	%sil, %dil
	setae	%al
	movzbl	%al, %eax
	ret
	.size	ge, .-ge
	.globl	ne
	.type	ne, @function
ne:
	cmpw	%si, %di
	setne	%al
	movzbl	%al, %eax
	ret
	.size	ne, .-ne
	.globl	eq
	.type	eq, @function
eq:
	cmpl	%esi, %edi
	sete	%al
	movzbl	%al, %eax
	ret
	.size	eq, .-eq
	.globl	gt
	.type	gt, @function
gt:
	cmpq	%rsi, %rdi
	seta	%al
	movzbl	%al, %eax
	ret
	.size	gt, .-gt
	.globl	test
	.type	test, @function
test:
	testq	%rdi, %rdi
	setne	%al
	movzbl	%al, %eax
	ret
	.size	test, .-test
	.globl	test_eq
	.type	test_eq, @function
test_eq:
	testw	%di, %di
	sete	%al
	movzbl	%al, %eax
	ret
	.size	test_eq, .-test_eq
	.globl	test_ge
	.type	test_ge, @function
test_ge:
	movl	%edi, %eax
	notl	%eax
	shrb	$7, %al
	movzbl	%al, %eax
	ret
	.size	test_ge, .-test_ge
	.globl	test_ne
	.type	test_ne, @function
test_ne:
	testl	%edi, %edi
	setne	%al
	movzbl	%al, %eax
	ret
	.size	test_ne, .-test_ne
	.comm	y,4,4
	.comm	x,4,4
	.ident	"GCC: (Ubuntu 4.8.1-2ubuntu1~12.04) 4.8.1"
	.section	.note.GNU-stack,"",@progbits