div1.cgs

gdb是linux下的一个远程调试环境.能让你很方便地调试linux下的代码.

# fr30 testcase for div1 $Ri
# mach(): fr30

	.include "testutils.inc"

	START

	.text
	.global div1
div1:
	; Test div1 $Ri
	; example from the manual -- all status bits 0
	mvi_h_gr   	0x00ffffff,r2
	mvi_h_dr   	0x00ffffff,mdh
	mvi_h_dr   	0x00000000,mdl
	set_dbits	0x0
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 0
	test_dbits	0x0
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x00ffffff,mdh	; misprinted in manual?
	test_h_dr  	0x00000001,mdl

	; D0 == 1
	set_dbits	0x1
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 0
	test_dbits	0x1
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x01fffffe,mdh
	test_h_dr  	0x00000002,mdl

	; D1 == 1
	set_dbits	0x2
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 0
	test_dbits	0x2
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x03fffffc,mdh
	test_h_dr  	0x00000004,mdl

	; D0 == 1, D1 == 1
	set_dbits	0x3
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 0
	test_dbits	0x3
	test_h_gr  	0x00ffffff,r2
	test_h_dr  	0x08fffff7,mdh
	test_h_dr  	0x00000009,mdl

	; C == 1
	mvi_h_gr  	0x11ffffef,r2
	set_dbits	0x0
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 1
	test_dbits	0x0
	test_h_gr  	0x11ffffef,r2
	test_h_dr  	0x11ffffee,mdh
	test_h_dr  	0x00000012,mdl

	; D0 == 1, C == 1
	mvi_h_gr  	0x23ffffdd,r2
	set_dbits	0x1
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 1
	test_dbits	0x1
	test_h_gr  	0x23ffffdd,r2
	test_h_dr  	0xffffffff,mdh
	test_h_dr  	0x00000025,mdl

	; D1 == 1, C == 1
	mvi_h_gr  	0x00000003,r2
	set_dbits	0x2
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 1
	test_dbits	0x2
	test_h_gr  	0x00000003,r2
	test_h_dr  	0x00000001,mdh
	test_h_dr  	0x0000004b,mdl

	; D0 == 1, D1 == 1, C == 1
	mvi_h_gr  	0xfffffffe,r2
	set_dbits	0x3
	set_cc          0x00
	div1      	r2
	test_cc		0 0 0 1
	test_dbits	0x3
	test_h_gr  	0xfffffffe,r2
	test_h_dr  	0x00000002,mdh
	test_h_dr  	0x00000096,mdl

	; remainder is zero
	mvi_h_gr  	0x00000004,r2
	set_dbits	0x0
	set_cc          0x00
	div1      	r2
	test_cc		0 1 0 0
	test_dbits	0x0
	test_h_gr  	0x00000004,r2
	test_h_dr  	0x00000000,mdh
	test_h_dr  	0x0000012d,mdl

	pass