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kernel/linux-rt-4.4.41/arch/c6x/lib/memcpy_64plus.S 972 Bytes
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  ;  Port on Texas Instruments TMS320C6x architecture
  ;
  ;  Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated
  ;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
  ;
  ;  This program is free software; you can redistribute it and/or modify
  ;  it under the terms of the GNU General Public License version 2 as
  ;  published by the Free Software Foundation.
  ;
  
  #include <linux/linkage.h>
  
  	.text
  
  ENTRY(memcpy)
  	AND	.L1	0x1,A6,A0
   ||	AND	.S1	0x2,A6,A1
   ||	AND	.L2X	0x4,A6,B0
   ||	MV	.D1	A4,A3
   ||	MVC	.S2	ILC,B2
  
     [A0] LDB	.D2T1	*B4++,A5
     [A1] LDB	.D2T1	*B4++,A7
     [A1] LDB	.D2T1	*B4++,A8
     [B0] LDNW	.D2T1	*B4++,A9
   ||	SHRU	.S2X	A6,0x3,B1
    [!B1] BNOP	.S2	B3,1
  
     [A0] STB	.D1T1	A5,*A3++
   ||[B1] MVC	.S2	B1,ILC
     [A1] STB	.D1T1	A7,*A3++
     [A1] STB	.D1T1	A8,*A3++
     [B0] STNW	.D1T1	A9,*A3++	; return when len < 8
  
  	SPLOOP	2
  
  	LDNDW	.D2T1	*B4++,A9:A8
  	NOP	3
  
  	NOP
  	SPKERNEL	0,0
   ||	STNDW	.D1T1	A9:A8,*A3++
  
  	BNOP	.S2	B3,4
  	MVC	.S2	B2,ILC
  ENDPROC(memcpy)