[thirdparty/gcc.git] / libgcc / config / fr30 / lib1funcs.S

/* libgcc routines for the FR30.
   Copyright (C) 1998-2019 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.

This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

	.macro FUNC_START name
	.text
	.globl __\name
	.type  __\name, @function
__\name:
	.endm

	.macro FUNC_END name
	.size  __\name, . - __\name
	.endm

	.macro DIV_BODY reg number
	.if \number
	DIV_BODY  \reg, "\number - 1"
	div1	\reg
	.endif
	.endm
	
#ifdef L_udivsi3
FUNC_START udivsi3
	;; Perform an unsiged division of r4 / r5 and place the result in r4.
	;; Does not handle overflow yet...
	mov	r4, mdl
	div0u	r5
	DIV_BODY r5 32
	mov	mdl, r4
	ret
FUNC_END udivsi3
#endif /* L_udivsi3 */

#ifdef L_divsi3
FUNC_START divsi3
	;; Perform a siged division of r4 / r5 and place the result in r4.
	;; Does not handle overflow yet...
	mov	r4, mdl
	div0s	r5
	DIV_BODY r5 32
	div2    r5
	div3
	div4s
	mov	mdl, r4
	ret
FUNC_END divsi3
#endif /* L_divsi3 */

#ifdef L_umodsi3
FUNC_START umodsi3
	;; Perform an unsiged division of r4 / r5 and places the remainder in r4.
	;; Does not handle overflow yet...
	mov	r4, mdl
	div0u	r5
	DIV_BODY r5 32
	mov	mdh, r4
	ret
FUNC_END umodsi3
#endif /* L_umodsi3 */

#ifdef L_modsi3
FUNC_START modsi3
	;; Perform a siged division of r4 / r5 and place the remainder in r4.
	;; Does not handle overflow yet...
	mov	r4, mdl
	div0s	r5
	DIV_BODY r5 32
	div2    r5
	div3
	div4s
	mov	mdh, r4
	ret
FUNC_END modsi3
#endif /* L_modsi3 */

#ifdef L_negsi2
FUNC_START negsi2
	ldi:8	#0, r0
	sub	r4, r0
	mov	r0, r4
	ret
FUNC_END negsi2
#endif /* L_negsi2 */

#ifdef L_one_cmplsi2
FUNC_START one_cmplsi2
	ldi:8	#0xff, r0
	extsb	r0
	eor	r0, r4
	ret
FUNC_END one_cmplsi2
#endif /* L_one_cmplsi2 */
Commit	Line	Data
23573244	1	/* libgcc routines for the FR30.
fbd26352	2	Copyright (C) 1998-2019 Free Software Foundation, Inc.
4b15dc3c	3
187b36cf	4	This file is part of GCC.
4b15dc3c	5
187b36cf	6	GCC is free software; you can redistribute it and/or modify it
4b15dc3c	7	under the terms of the GNU General Public License as published by the
6bc9506f	8	Free Software Foundation; either version 3, or (at your option) any
4b15dc3c	9	later version.
4b15dc3c	10
4b15dc3c	11	This file is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	General Public License for more details.
	15
6bc9506f	16	Under Section 7 of GPL version 3, you are granted additional
	17	permissions described in the GCC Runtime Library Exception, version
	18	3.1, as published by the Free Software Foundation.
	19
	20	You should have received a copy of the GNU General Public License and
	21	a copy of the GCC Runtime Library Exception along with this program;
	22	see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	23	<http://www.gnu.org/licenses/>. */
4b15dc3c	24
4b15dc3c	25	.macro FUNC_START name
	26	.text
	27	.globl __\name
	28	.type __\name, @function
	29	__\name:
	30	.endm
	31
	32	.macro FUNC_END name
	33	.size __\name, . - __\name
	34	.endm
	35
	36	.macro DIV_BODY reg number
	37	.if \number
	38	DIV_BODY \reg, "\number - 1"
	39	div1 \reg
	40	.endif
	41	.endm
	42
	43	#ifdef L_udivsi3
	44	FUNC_START udivsi3
	45	;; Perform an unsiged division of r4 / r5 and place the result in r4.
	46	;; Does not handle overflow yet...
	47	mov r4, mdl
	48	div0u r5
	49	DIV_BODY r5 32
	50	mov mdl, r4
	51	ret
	52	FUNC_END udivsi3
	53	#endif /* L_udivsi3 */
	54
	55	#ifdef L_divsi3
	56	FUNC_START divsi3
	57	;; Perform a siged division of r4 / r5 and place the result in r4.
	58	;; Does not handle overflow yet...
	59	mov r4, mdl
	60	div0s r5
	61	DIV_BODY r5 32
	62	div2 r5
	63	div3
	64	div4s
	65	mov mdl, r4
	66	ret
	67	FUNC_END divsi3
	68	#endif /* L_divsi3 */
	69
	70	#ifdef L_umodsi3
	71	FUNC_START umodsi3
	72	;; Perform an unsiged division of r4 / r5 and places the remainder in r4.
	73	;; Does not handle overflow yet...
	74	mov r4, mdl
	75	div0u r5
	76	DIV_BODY r5 32
	77	mov mdh, r4
	78	ret
	79	FUNC_END umodsi3
	80	#endif /* L_umodsi3 */
	81
	82	#ifdef L_modsi3
	83	FUNC_START modsi3
	84	;; Perform a siged division of r4 / r5 and place the remainder in r4.
	85	;; Does not handle overflow yet...
	86	mov r4, mdl
	87	div0s r5
	88	DIV_BODY r5 32
89	div2 r5
90	div3
91	div4s
92	mov mdh, r4
93	ret
94	FUNC_END modsi3
95	#endif /* L_modsi3 */
96
97	#ifdef L_negsi2
98	FUNC_START negsi2
99	ldi:8 #0, r0
100	sub r4, r0
101	mov r0, r4
102	ret
103	FUNC_END negsi2
104	#endif /* L_negsi2 */
105
106	#ifdef L_one_cmplsi2
107	FUNC_START one_cmplsi2
108	ldi:8 #0xff, r0
109	extsb r0
110	eor r0, r4
111	ret
112	FUNC_END one_cmplsi2
113	#endif /* L_one_cmplsi2 */
114
115