arch/cris/__negdi2.S

/*
 * arch/cris/__negdi2.c
 */

/*
 * In 2's complement arithmetric, -x == (~x + 1), so
 * -{h,l} = (~{h,l} + {0,1)
 * -{h,l} = {~h,~l} + {0,1}
 * -{h,l} = {~h + cy, ~l + 1}
 * ... where cy = (l == 0)
 * -{h,l} = {~h + cy, -l}
 */

	.text
	.balign 4
	.type	__negdi2,@function
	.globl	__negdi2
__negdi2:
	neg.d	$r10,$r10
	seq	$r12
	not	$r11
	ret
	  add.d	$r12,$r11

	.size __negdi2, .-__negdi2
1	niro	532	/*
2			* arch/cris/__negdi2.c
3			*/
4
5			/*
6			* In 2's complement arithmetric, -x == (~x + 1), so
7			* -{h,l} = (~{h,l} + {0,1)
8			* -{h,l} = {~h,~l} + {0,1}
9			* -{h,l} = {~h + cy, ~l + 1}
10			* ... where cy = (l == 0)
11			* -{h,l} = {~h + cy, -l}
12			*/
13
14			.text
15			.balign 4
16			.type __negdi2,@function
17			.globl __negdi2
18			__negdi2:
19			neg.d $r10,$r10
20			seq $r12
21			not $r11
22			ret
23			add.d $r12,$r11
24
25			.size __negdi2, .-__negdi2