# Intel(r) Wireless MMX(tm) technology testcase for WSUB
# mach: xscale
# as: -mcpu=xscale+iwmmxt

	.include "testutils.inc"

	start

	.global wsub
wsub:
	# Enable access to CoProcessors 0 & 1 before
        # we attempt these instructions.

	mvi_h_gr   r1, 3
	mcr        p15, 0, r1, cr15, cr1, 0

	# Test Unsaturated Byte subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubb      wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abcdef
		
	# Test Unsigned saturated Byte subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubbus    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abcd00
		
	# Test Signed saturated Byte subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubbss    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abcdef
		
	# Test Unsaturated Halfword subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubh      wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	# Test Unsigned saturated Halfword subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubhus    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	# Test Signed saturated Halfword subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubhss    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	# Test Unsaturated Word subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubw      wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	# Test Unsigned saturated Word subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubwus    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	# Test Signed saturated Word subtraction
		
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcde00
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x11111111
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3
	tmcrr	   wr2, r4, r5

	wsubwss    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcde00
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x11111111
	test_h_gr  r4, 0x01234567
	test_h_gr  r5, 0x89abccef
		
	pass