mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-04 13:06:01 +00:00
116 lines
2.4 KiB
ArmAsm
116 lines
2.4 KiB
ArmAsm
/* libgcc routines for the FR30.
|
|
Copyright (C) 1998-2017 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 */
|
|
|
|
|