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/* 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
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