wacc.cgs

来自「这个是LINUX下的GDB调度工具的源码」· CGS 代码 · 共 78 行

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

	.include "testutils.inc"

	start

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

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

	# Test Unsigned Byte Wide Accumulation
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0
	mvi_h_gr   r3, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3

	waccb	   wr1, wr0
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x00000438
	test_h_gr  r3, 0x00000000

	# Test Unsigned Half Word Wide Accumulation
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0
	mvi_h_gr   r3, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3

	wacch	   wr1, wr0
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0x0001e258
	test_h_gr  r3, 0x00000000

	# Test Unsigned Word Wide Accumulation
	
	mvi_h_gr   r0, 0x12345678
	mvi_h_gr   r1, 0x9abcdef0
	mvi_h_gr   r2, 0
	mvi_h_gr   r3, 0

	tmcrr	   wr0, r0, r1
	tmcrr	   wr1, r2, r3

	waccw	   wr1, wr0
	
	tmrrc	   r0, r1, wr0
	tmrrc	   r2, r3, wr1
	
	test_h_gr  r0, 0x12345678
	test_h_gr  r1, 0x9abcdef0
	test_h_gr  r2, 0xacf13568
	test_h_gr  r3, 0x00000000

	pass