memory501.asm

这是我上-dsp-5400用的课件。里面有软件的simulater的设置

***********************
*date     07-9-20
*purpose  
* 数据初始化
*auhtor xcs
**********************	
	.title "operation01.asm"
	.global start
	.mmregs

	.bss x,5
	.bss y,1
	.bss z,9
	.bss mya,1
	.text
	.data
table: .word 1,2,3,4,5	
	.text
start:
 	stm #0,swwsr    
    ;----------move data
    stm #x,ar1
    rpt #4
    stm #2,*ar1+
    ;----------move data--------   
    ;---------copy data
    stm #x,ar1
    stm #z,ar2
    stm #7h,ar3
copys:
   	ld 		*ar1+,T 		; 将ar1指向单元内容读入T寄存器，ar1的值+1
	st 		T,*ar2+			; 将T寄存器的值转存到ar2指向的目的地址，ar2的值+1
;	stm 	*ar1+,*ar2+
	banz	copys,*ar3-		; ar3的值-1，循环计数不等于0则循环    
    ;---------copy data
  ;rpt #2;
   ; mvdd *ar2+,*ar3+  ;mvdd *ar1+,*ar2+
;--------------------ini is over
;-------add--sub--- z= x+y -mya---
       stm #3,@mya
       ld @x,a
       add @y,a
       sub @mya,a
       stl a,@z
;-------mpy--- z = m*x+y ----------       
   ld @mya,t
   mpy @x,a
   add @y,a
   stl a,@z
;------y=x1*a1+x2 *a2
       
	ld @x,t
	mpy @mya,b
	ld @y,t
	mac @x+2,b
;------------rept block--- 3个x 都+1------
               LD #1,B
               STM #2,BRC
               STM #x,AR4
               RPTB next-1
               ADD *AR4,B,A
               STL A,*AR4+
next:      LD #0,B
;-------------------
	stm #x,ar5
	ld *ar5+,t
	mpy @mya,b
	ld @y,t
	mac *ar5+,b
;---------------------		
;---------y = x1+ x2+x3+x4+x5
	stm #x,ar3
	stm #4,ar4
	ld #0,a
loopadd: 
	add *ar3+,a
	banz loopadd,*ar4-
	stl a,@y
	
	
	   
xh:
	b 		xh				; 空循环	
	.end