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

	.include "compact/testutils.inc"

	start
zero:
	mov #0, r0
	mov #0, r1
	subv r0, r1
	bt wrong
	assert r1, #0

one:
	mov #10, r0
	mov #0, r1
	subv r0, r1
	bt wrong
	not r1, r1
	assert r1, #9

large:
	# Produce MAXINT in R0.
	mov #0, r0
	not r0, r0
	shlr r0

	# Put -3 into R1.
	mov #3, r1
	neg r1, r1

	# Subtract them and underflow.
	subv r0, r1
	bf wrong

another:
	# Produce MAXINT in R0.
	mov #0, r0
	not r0, r0
	shlr r0
	
	# Put -3 into R1.
	mov #3, r1
	neg r1, r1
	
	# Subtract them and overflow.
	subv r1, r0
	bf wrong
		
okay:
	pass
wrong:
	fail