subn.cgs

来自「gdb-6.8 Linux下的调试程序 最新版本」· CGS 代码 · 共 37 行

# fr30 testcase for subn $Rj,$Ri
# mach(): fr30

	.include "testutils.inc"

	START

	.text
	.global subn
subn:
	; Test subn $Rj,$Ri
	mvi_h_gr   	1,r7
	mvi_h_gr   	2,r8
	set_cc          0x0f		; Set mask opposite of usual result
	subn      	r7,r8
	test_cc		1 1 1 1
	test_h_gr  	1,r8

	mvi_h_gr   	1,r7
	mvi_h_gr   	0x80000000,r8
	set_cc          0x0d		; Set mask opposite of usual result
	subn		r7,r8
	test_cc		1 1 0 1
	test_h_gr  	0x7fffffff,r8

	set_cc          0x0b		; Set mask opposite of usual result
	subn		r8,r8
	test_cc		1 0 1 1
	test_h_gr  	0,r8

	set_cc          0x06		; Set mask opposite of usual result
	subn		r7,r8
	test_cc		0 1 1 0
	test_h_gr  	0xffffffff,r8

	pass