view target-utils/libbase/waitarm.S @ 494:547c540448e5

CHANGES: Mot C155/156 WS=4 change documented
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 24 May 2019 06:44:59 +0000
parents 6228d27738d1
children 06ad5e30e8d0
line wrap: on
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/*
 * This assembly module provides a wait_ARM_cycles() function just like
 * in TI's firmware; it is meant to gradually replace and phase out
 * osmo_delay_ms().  One loop count for this function equals 5 ARM clock
 * cycles when running out of IRAM.
 */

	.text
	.code	32
	.globl	wait_ARM_cycles
wait_ARM_cycles:
	cmp	r0, #0
	bxeq	lr
1:	sub	r0, r0, #1
	cmp	r0, #0
	bne	1b
	bx	lr