低效32bytesmask.txt

一个TIDM642DSP处理器测试程序

 .global _osd
      ;.global _MyFun
; A4 --> pIn0
; B4 --> pMask
; A6 --> nlongth
;_MyFun:
   ;     mvk .s1 0x3,a1
    ;    mvk .s1 0x2,a2
    ;    and .l1 a1,a2,a1
     
     ;   cmpeq4 .s1 a2,a1,a2
     ;   xpnd4 .m1 a1,a1
_osd:
     ; mvkl .s1 0x7c3839b0,a4
     ; mvkh .s1 0x7c3839b0,a4
     ; mvkl .s2 0x7c383800,b4
     ; mvkh .s2 0x7c383800,b4
      
      lddw .d2 *b4++,a29:a28
   || MV .S2X A6,B1
   || mv .L2 b4,b5
      lddw .d1 *a4++,a31:a30
   || lddw .d2 *b4++,b29:b28    ;++++1
   || zero .l1 a9
   || mv .s1 a4,a5
   || SHR 	.S2 	B1,4,B1		
   
   
   ; lddw .d2 *b4++,b29:b28
   ;|| lddw .d1 *a4++,b31:b30
      lddw .d1 *a4++,b31:b30    ;++++1
   || SUB .D2 B1,2,B1
LOOP: 
      NOP 2
      
      ;Get a29,a28 (mask64_1)
      cmpeq4 .s1 a9,a29,a27
      
      ;Get a31,a30 (src64_1);Get b29,b28(mask64_2)
      xpnd4  .m1 a27,a25
   || cmpeq4 .s1 a9,a28,a26
   || cmpeq4 .s2 a9,b29,b27 ;+++++1
   
      xpnd4  .m1 a26,a24
   || xpnd4  .m2 b27,b25     ;+++++1
   || cmpeq4 .s2 a9,b28,b26  ;+++++1
      ;Get b31,b30 (src64_2)
      and .l1 a25,a31,a31 
   || xpnd4  .m2 b26,b24     ;+++++1 
   
   
      and .s1  a24,a30,a30
   || and .l2 b25,b31,b31     ;+++++1
      or  .l1 a29,a31,a31
   || and .D2 b24,b30,b30     ;+++++1
   || or  .l2 b29,b31,b31     ;+++++1
   || BDEC 	.S2  LOOP, B1     ;JUMP
      or  .l1 a28,a30,a30
   || or  .l2 b28,b30,b30     ;+++++1
      stdw .d1 a31:a30,*a5++
      stdw .d1 b31:b30,*a5++  ;+++++1
   || lddw .d2 *b4++,a29:a28  ;++++2
     
      lddw .d1 *a4++,a31:a30  ;++++2
   || lddw .d2 *b4++,b29:b28  ;++++3
  
      lddw .d1 *a4++,b31:b30  ;++++3
    
      b .s2 b3
      
      nop 5