t-msbu.s

来自「lwip在ucos上的移植」· S 代码 · 共 29 行

.include "t-macros.i"

	start

	;; clear FX
	ldi r2, #0x8005
	mvtc r2, cr0

	loadacc2 a1 0x7f 0xffff 0xffff
	ldi r8, 0xffff
	ldi r9, 0x8001
test_msbu1:
	MSBU a1, r9, r8
	checkacc2 1 a1 0X7F 0x7FFF 0x8000

	
	;; set FX
	ldi r2, #0x8085
	mvtc r2, cr0

	loadacc2 a1 0x7f 0xffff 0xffff
	ldi r8, 0xffff
	ldi r9, 0x8001
test_msbu2:
	MSBU a1, r9, r8
	checkacc2 2 a1 0X7E 0xFFFF 0x0001

	exit0