cmpstr.cgs

gdb-6.8 Linux下的调试程序 最新版本

# sh testcase for cmp/str $rm, $rn -*- Asm -*-
# mach: all
# as: -isa=shcompact
# ld: -m shelf32

	.include "compact/testutils.inc"

.macro rot8
	rotr r0
	rotr r0
	rotr r0
	rotr r0
	rotr r0
	rotr r0
	rotr r0
	rotr r0
.endm

	start

# Use multiple "wrong" labels because this program is quite long. It's
# likely that some instructions will be too far away from the branch
# target to use PC-relative branches.
	
match0:
	# No bytes matching.
	mov #1, r0
	neg r0, r0
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	mov r0, r1
	mov #1, r0
	neg r0, r0
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	cmp/str r0, r1
	bt wrong0

	bra match1
	nop
wrong0:
	fail

match1:
	# One byte matching.
	mov #1, r0
	neg r0, r0
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	mov r0, r1
	mov #1, r0
	neg r0, r0
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	cmp/str r0, r1
	bf wrong1

	bra match2
	nop
wrong1:
	fail

match2:
	# Two bytes matching.
	mov #1, r0
	neg r0, r0
	xor #170, r0
	rot8
	xor #170, r0
	rot8
	mov r0, r1
	mov #1, r0
	neg r0, r0
	xor #85, r0
	rot8
	xor #85, r0
	rot8
	cmp/str r0, r1
	bf wrong2

	bra match3
	nop
wrong2:
	fail
	
byte0:
match3:
	# One byte matching.
	# This is also the test for byte 0.
	mov #85, r0
	mov #85, r1
	cmp/str r0, r1
	bf wrong3

byte1:
	# Match in byte position 1.
	mov #85, r0
	shll8 r0
	mov #85, r1
	shll8 r1
	cmp/str r0, r1
	bf wrong3

byte2:
	# Match in byte position 2.
	mov #85, r0
	shll16 r0
	mov #85, r1
	shll16 r1
	cmp/str r0, r1
	bf wrong3

byte3:
	# Match in byte position 3.
	mov #85, r0
	shll16 r0
	shll8 r0
	mov #85, r1
	shll16 r1
	shll8 r1
	cmp/str r0, r1
	bf wrong3

okay:
	pass
wrong3:
	fail