mtrap.cgs

gdb-6.8 Linux下的调试程序 最新版本

# frv testcase for mp_exception
# mach: frv fr500 fr400

	.include "testutils.inc"

	start

	.global mp_exception
mpx:
	and_spr_immed	-4081,tbr		; clear tbr.tt
	set_gr_spr	tbr,gr7
	inc_gr_immed	0x0e0,gr7		; address of exception handler
	set_bctrlr_0_0  gr7
	set_spr_immed	128,lcr
	set_spr_addr	ok1,lr
	set_psr_et	1
	set_gr_immed	0,gr5

	set_spr_immed	0,msr0
	set_fr_iimmed	0x1234,0x5678,fr10
	set_fr_iimmed	0x7ffe,0x7ffe,fr11
	set_fr_iimmed	0xffff,0xffff,fr12
	set_fr_iimmed	0x0002,0x0001,fr13
	mqaddhss	fr10,fr12,fr14
	test_fr_limmed	0x1233,0x5677,fr14
	test_fr_limmed	0x7fff,0x7fff,fr15
	test_spr_bits	0x3c,2,0x2,msr0		; msr0.sie is set
	test_spr_bits	2,1,1,msr0		; msr0.ovf set
	test_spr_bits	1,0,1,msr0		; msr0.aovf set
	test_spr_bits	0x7000,12,1,msr0	; msr0.mtt set
	mtrap				; generate interrupt
	test_gr_immed	1,gr5

	and_spr_immed	0xffffc000,msr0	; Clear msr0 fields
	mcmpsh		fr10,fr11,fcc0	; no exception
	test_spr_bits	0x7000,12,0,msr0; msr0.mtt is clear
	mtrap				; nop
	test_gr_immed	1,gr5

	pass

; exception handler
ok1:
	test_spr_bits	0x3c,2,0x2,msr0		; msr0.sie is set
	test_spr_bits	2,1,1,msr0		; msr0.ovf set
	test_spr_bits	1,0,1,msr0		; msr0.aovf set
	test_spr_bits	0x7000,12,1,msr0	; msr0.mtt set
	inc_gr_immed	1,gr5
	rett		0
	fail