[linux-2.6-block.git] / arch / c6x / lib / llshl.S

;; SPDX-License-Identifier: GPL-2.0-or-later
;;  Copyright (C) 2010 Texas Instruments Incorporated
;;  Contributed by Mark Salter <msalter@redhat.com>.
;;

;;  uint64_t __c6xabi_llshl(uint64_t val, uint shift)

#include <linux/linkage.h>

	.text
ENTRY(__c6xabi_llshl)
	 mv	.l1x	B4,A1
   [!A1] b	.s2	B3		; just return if zero shift
	 mvk	.s1	32,A0
	 sub	.d1	A0,A1,A0
	 cmplt	.l1	0,A0,A2
   [A2]	 shru	.s1	A4,A0,A0
   [!A2] neg	.l1	A0,A5
|| [A2]  shl	.s1	A5,A1,A5
   [!A2] shl	.s1	A4,A5,A5
|| [A2]  or	.d1	A5,A0,A5
|| [!A2] mvk	.l1	0,A4
   [A2]	 shl	.s1	A4,A1,A4
	 bnop	.s2	B3,5
ENDPROC(__c6xabi_llshl)
Commit	Line	Data
1a59d1b8	1	;; SPDX-License-Identifier: GPL-2.0-or-later
09831ca7 AJ	2	;; Copyright (C) 2010 Texas Instruments Incorporated
	3	;; Contributed by Mark Salter <msalter@redhat.com>.
	4	;;
09831ca7 AJ	5
	6	;; uint64_t __c6xabi_llshl(uint64_t val, uint shift)
	7
	8	#include <linux/linkage.h>
	9
	10	.text
	11	ENTRY(__c6xabi_llshl)
	12	mv .l1x B4,A1
	13	[!A1] b .s2 B3 ; just return if zero shift
	14	mvk .s1 32,A0
	15	sub .d1 A0,A1,A0
	16	cmplt .l1 0,A0,A2
	17	[A2] shru .s1 A4,A0,A0
	18	[!A2] neg .l1 A0,A5
	19	\|\| [A2] shl .s1 A5,A1,A5
	20	[!A2] shl .s1 A4,A5,A5
	21	\|\| [A2] or .d1 A5,A0,A5
	22	\|\| [!A2] mvk .l1 0,A4
	23	[A2] shl .s1 A4,A1,A4
	24	bnop .s2 B3,5
	25	ENDPROC(__c6xabi_llshl)