zhao9e.asm

这里面有很多dsp应用程序源码

*****************************************
*	计算y=a1*x1+a2*x2+a3*x3+a4*x4	    *
*	a1=0.1,a2=0.2,a3=-0.3,a4=0.2	    *
*	x1=0.8,x2=0.6,x3=-0.4,x4=-0.2       *
*****************************************
		.title	"zhao9e.asm"
		.mmregs
STACK	.usect	"STACK",10H
		.bss	a,4
		.bss	x,4
		.bss	y,1
		.def	start
		.data
table:	.word	1*32768/10
		.word	2*32768/10
		.word	-3*32768/10
		.word	4*32768/10
		.word	8*32768/10
		.word	6*32768/10
		.word	-4*32768/10
		.word	-2*32768/10
		.text
start:	SSBX	FRCT
		STM		#a,AR1
		RPT		#7
		MVPD	table,*AR1+
		STM		#x,AR2
		STM		#a,AR3
		RPTZ	A,#3
		MAC		*AR2+,*AR3+,A
		STH		A,*(y)
end:	B		end
		.end