lock.cgs

来自「lwip在ucos上的移植」· CGS 代码 · 共 26 行

# m32r testcase for lock $dr,@$sr
# mach(): m32r m32rx

	.include "testutils.inc"

	start

	.global lock
lock:
	mvaddr_h_gr r4, data_loc
	mvi_h_gr    r5, 0

	lock r5, @r4

	test_h_gr r5, 0x12345678

	; There is no way to test the lock bit

	unlock r5, @r4 	; Unlock the processor

	pass

data_loc:
	.word 0x12345678