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openocd/contrib/loaders/flash/armv7m_io.s
Antonio Borneo a126229dff 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
2022-09-13 22:06:14 +00:00

47 lines
821 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
* Copyright (C) 2013 by Henrik Nilsson *
* henrik.nilsson@bytequest.se *
***************************************************************************/
.text
.syntax unified
.arch armv7-m
.thumb
.thumb_func
.align 4
/* Inputs:
* r0 buffer address
* r1 NAND data address (byte wide)
* r2 buffer length
*/
read:
ldrb r3, [r1]
strb r3, [r0], #1
subs r2, r2, #1
bne read
done_read:
bkpt #0
.align 4
/* Inputs:
* r0 NAND data address (byte wide)
* r1 buffer address
* r2 buffer length
*/
write:
ldrb r3, [r1], #1
strb r3, [r0]
subs r2, r2, #1
bne write
done_write:
bkpt #0
.end