div2.cgs

来自「gdb-6.8 Linux下的调试程序 最新版本」· CGS 代码 · 共 121 行

# fr30 testcase for div2 $Ri
# mach(): fr30

	.include "testutils.inc"

	START

	.text
	.global div2
div2:
	; Test div2 $Ri
	; example from the manual -- all status bits 0
	mvi_h_gr   	0x00ffffff,r2
	mvi_h_dr   	0x00ffffff,mdh
	mvi_h_dr   	0x0000000f,mdl
	set_dbits	0x0
	set_cc          0x00
	div2      	r2
	test_cc		0 1 0 0
	test_dbits	0x0
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x00000000,mdh
	test_h_dr  	0x0000000f,mdl

	; D0 == 1
	mvi_h_dr   	0x00ffffff,mdh
	set_dbits	0x1
	set_cc          0x00
	div2      	r2
	test_cc		0 1 0 0
	test_dbits	0x1
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x00000000,mdh
	test_h_dr  	0x0000000f,mdl

	; D1 == 1
	mvi_h_dr   	0x00ffffff,mdh
	set_dbits	0x2
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 0
	test_dbits	0x2
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x00ffffff,mdh
	test_h_dr  	0x0000000f,mdl

	; D0 == 1, D1 == 1
	set_dbits	0x3
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 0
	test_dbits	0x3
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x00ffffff,mdh
	test_h_dr  	0x0000000f,mdl

	; C == 1
	mvi_h_dr   	0x11ffffee,mdh
	mvi_h_gr  	0x11ffffef,r2
	set_dbits	0x0
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 1
	test_dbits	0x0
	test_h_gr  	0x11ffffef,r2
	test_h_dr  	0x11ffffee,mdh
	test_h_dr  	0x0000000f,mdl

	; D0 == 1, C == 1
	mvi_h_dr   	0x23ffffdc,mdh
	mvi_h_gr  	0x23ffffdd,r2
	set_dbits	0x1
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 1
	test_dbits	0x1
	test_h_gr  	0x23ffffdd,r2
	test_h_dr  	0x23ffffdc,mdh
	test_h_dr  	0x0000000f,mdl

	; D1 == 1, C == 1
	mvi_h_dr   	0xfffffffd,mdh
	mvi_h_gr  	0x00000004,r2
	set_dbits	0x2
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 1
	test_dbits	0x2
	test_h_gr  	0x00000004,r2
	test_h_dr  	0xfffffffd,mdh
	test_h_dr  	0x0000000f,mdl

	; D0 == 1, D1 == 1, C == 1
	mvi_h_dr   	0x00000002,mdh
	mvi_h_gr  	0xffffffff,r2
	set_dbits	0x3
	set_cc          0x00
	div2      	r2
	test_cc		0 0 0 1
	test_dbits	0x3
	test_h_gr  	0xffffffff,r2
	test_h_dr  	0x00000002,mdh
	test_h_dr  	0x0000000f,mdl

	; remainder is zero
	mvi_h_dr   	0x00000004,mdh
	mvi_h_gr  	0x00000004,r2
	set_dbits	0x0
	set_cc          0x00
	div2      	r2
	test_cc		0 1 0 0
	test_dbits	0x0
	test_h_gr  	0x00000004,r2
	test_h_dr  	0x00000000,mdh
	test_h_dr  	0x0000000f,mdl

	pass