extsb.cgs

来自「lwip在ucos上的移植」· CGS 代码 · 共 37 行

# fr30 testcase for extsb $Ri
# mach(): fr30

	.include "testutils.inc"

	START

	.text
	.global extsb
extsb:
	; Test extsb $Ri
	mvi_h_gr   	0,r7
	set_cc          0x0f		; Condition codes are irrelevent
	extsb      	r7
	test_cc		1 1 1 1
	test_h_gr  	0,r7

	mvi_h_gr   	0x7f,r7
	set_cc          0x0e		; Condition codes are irrelevent
	extsb      	r7
	test_cc		1 1 1 0
	test_h_gr  	0x7f,r7

 	mvi_h_gr   	0x80,r7
	set_cc          0x0d		; Condition codes are irrelevent
	extsb      	r7
	test_cc		1 1 0 1
	test_h_gr  	0xffffff80,r7

	mvi_h_gr   	0xffffff7f,r7
	set_cc          0x0c		; Condition codes are irrelevent
	extsb      	r7
	test_cc		1 1 0 0
	test_h_gr  	0x7f,r7

	pass