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riscv-openocd/contrib/loaders/checksum/armv7m_crc.s

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contrib: replace the GPLv2-or-later license tag Replace the GPLv2-or-later boilerplate with the SPDX tag. The SPDX tag on files *.c is incorrect, as it should use the C99 single line comment using '//'. But current checkpatch doesn't allow C99 comments, so keep using standard C comments, by now. Change-Id: I380d552940f1c405309a3346454251c0e80b5a45 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7159 Tested-by: jenkins
2022-08-30 15:18:31 -05:00
/* SPDX-License-Identifier: GPL-2.0-or-later */
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
/***************************************************************************
* Copyright (C) 2010 by Spencer Oliver *
* spen@spen-soft.co.uk *
***************************************************************************/
/*
parameters:
r0 - address in - crc out
r1 - char count
*/
.text
.syntax unified
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
.cpu cortex-m0
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
.thumb
.thumb_func
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
.align 2
_start:
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
main:
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
mov r2, r0
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
movs r0, #0
mvns r0, r0
ldr r6, CRC32XOR
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
mov r3, r1
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
movs r4, #0
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
b ncomp
nbyte:
ldrb r1, [r2, r4]
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
lsls r1, r1, #24
eors r0, r0, r1
movs r5, #0
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
loop:
cmp r0, #0
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
bge notset
lsls r0, r0, #1
eors r0, r0, r6
b cont
notset:
lsls r0, r0, #1
cont:
adds r5, r5, #1
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
cmp r5, #8
bne loop
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
adds r4, r4, #1
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
ncomp:
cmp r4, r3
bne nbyte
bkpt #0
armv7m: update crc/erase_check loaders for cortex-m0 Use loaders that have been built for cortex-m0, making them usable for both cortex-m0 and cortex-m3 families. Change-Id: Ifd82be87eaec2cb96464290c80800cec3630d619 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/604 Tested-by: jenkins
2012-05-01 03:46:07 -05:00
.align 2
contrib: add ram loader src code Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-10-28 03:19:37 -05:00
CRC32XOR: .word 0x04c11db7
.end