nudivi.cgs

来自「这个是LINUX下的GDB调度工具的源码」· CGS 代码 · 共 52 行

# frv testcase for nudivi $GRi,$s12,$GRk
# mach: fr500 fr550 frv

	.include "testutils.inc"

	start

	.global nudivi
nudivi:
	set_spr_immed	0,gner0
	set_spr_immed	0,gner1

	; simple division 12 / 3
	set_gr_immed   	0x0000000c,gr3
	nudivi      	gr3,3,gr3
	test_gr_immed  	0x00000004,gr3
	test_spr_immed	0,gner0
	test_spr_immed	0,gner1

	; random example
	set_gr_limmed  	0xfedc,0xba98,gr3
	nudivi      	gr3,0x7ff,gr3
	test_gr_limmed 	0x001f,0xdf93,gr3
	test_spr_immed	0,gner0
	test_spr_immed	0,gner1

	; random example
	set_gr_limmed  	0xffff,0xffff,gr3
	nudivi      	gr3,-2048,gr3
	test_gr_immed 	1,gr3
	test_spr_immed	0,gner0
	test_spr_immed	0,gner1

	or_spr_immed	0x20,isr	; turn on isr.edem
	nudivi      	gr1,0,gr32	; divide by zero
	test_spr_immed	1,gner0
	test_spr_immed	0,gner1

	and_spr_immed	-33,isr		; turn off isr.edem
	nudivi      	gr1,0,gr10	; divide by zero
	test_spr_immed	1,gner0
	test_spr_immed	0x00000400,gner1

	; simple division 12 / 3 -- should turn off ne flag
	set_gr_immed   	12,gr1
	nudivi      	gr1,3,gr10
	test_gr_immed  	4,gr10
	test_spr_immed	1,gner0
	test_spr_immed	0,gner1

	pass