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/* libgcc routines for the FR30.
Copyright (C) 1998, 1999, 2009 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 */
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