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