wavg2.cgs

来自「这个是LINUX下的GDB调度工具的源码」· CGS 代码 · 共 122 行

# Intel(r) Wireless MMX(tm) technology testcase for WAVG2
# mach: xscale
# as: -mcpu=xscale+iwmmxt

	.include "testutils.inc"

	start

	.global wavg2
wavg2:
	# Enable access to CoProcessors 0 & 1 before
        # we attempt these instructions.

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

	# Test Byte Wide Averaging
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x22222222
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

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

	wavg2b     wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x22222222
	test_h_gr  r4, 0x11223344
	test_h_gr  r5, 0x5e6f8089
	
	# Test Byte Wide Averaging with Rounding
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x22222222
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

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

	wavg2br    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x22222222
	test_h_gr  r4, 0x12233445
	test_h_gr  r5, 0x5e6f8089
	
	# Test Half Word Wide Averaging
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x22222222
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

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

	wavg2h     wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x22222222
	test_h_gr  r4, 0x11a233c4
	test_h_gr  r5, 0x5e6f8089
	
	# Test Half Word Wide Averaging with Rounding
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0x11111111
	mvi_h_gr   r3, 0x22222222
	mvi_h_gr   r4, 0
	mvi_h_gr   r5, 0

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

	wavg2hr    wr2, wr0, wr1
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	tmrrc	   r4, r5, wr2
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x11111111
	test_h_gr  r3, 0x22222222
	test_h_gr  r4, 0x11a333c5
	test_h_gr  r5, 0x5e6f8089
	
	pass