example6p1.asm

用于DSK5416的程序

***********************************************************************
*
* This program computes the signed sum of 16 data memory
* locations starting at Number. The result is placed in A. 
*
************************************************************************

        .mmregs
        .global  _c_int00
    
        .data
Number:
        .int 5, 14, -7, 22, -25, 4, 2, 0, 6, 33, 4, 11, 12, -12, 8, 16
    
    
        .text
    
_c_int00:
        stm  #10h, AR2                  ; Init counter AR2 = 16
        stm  #Number, AR1               ; Init pointer AR1 to first number
        ld   #0h, A                     ; Initialize sum A = 0
        ssbx SXM                        ; Select sign extension mode
	
START:
        add  *AR1+, A                   ; Add the next data value	    
        banz START, *AR2-               ; Repeat if not done
        nop                             ; No operation - just for debugging
	
        .end