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137 lines
6.3 KiB
C
137 lines
6.3 KiB
C
/* Copyright (c) 2000 TXT DataKonsult Ab & Monty Program Ab
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Copyright (c) 2009-2011, Monty Program Ab
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* File : bmove512.c
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Author : Michael Widenius;
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Defines: bmove512()
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bmove512(dst, src, len) moves exactly "len" bytes from the source "src"
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to the destination "dst". "src" and "dst" must be alligned on long
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boundory and len must be a mutliple of 512 byte. If len is not a
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multiple of 512 byte len/512*512+1 bytes is copyed.
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bmove512 is moustly used to copy IO_BLOCKS. bmove512 should be the
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fastest way to move a mutiple of 512 byte.
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*/
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#include "strings_def.h"
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#ifndef bmove512
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#ifdef HAVE_LONG_LONG
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#define LONG ulonglong
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#else
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#define LONG ulong
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#endif
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void bmove512(uchar *to, const uchar *from, register size_t length)
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{
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reg1 LONG *f,*t,*end= (LONG*) ((char*) from+length);
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f= (LONG*) from;
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t= (LONG*) to;
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#if defined(m88k) || defined(sparc) || defined(HAVE_LONG_LONG)
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do {
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t[0]=f[0]; t[1]=f[1]; t[2]=f[2]; t[3]=f[3];
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t[4]=f[4]; t[5]=f[5]; t[6]=f[6]; t[7]=f[7];
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t[8]=f[8]; t[9]=f[9]; t[10]=f[10]; t[11]=f[11];
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t[12]=f[12]; t[13]=f[13]; t[14]=f[14]; t[15]=f[15];
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t[16]=f[16]; t[17]=f[17]; t[18]=f[18]; t[19]=f[19];
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t[20]=f[20]; t[21]=f[21]; t[22]=f[22]; t[23]=f[23];
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t[24]=f[24]; t[25]=f[25]; t[26]=f[26]; t[27]=f[27];
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t[28]=f[28]; t[29]=f[29]; t[30]=f[30]; t[31]=f[31];
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t[32]=f[32]; t[33]=f[33]; t[34]=f[34]; t[35]=f[35];
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t[36]=f[36]; t[37]=f[37]; t[38]=f[38]; t[39]=f[39];
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t[40]=f[40]; t[41]=f[41]; t[42]=f[42]; t[43]=f[43];
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t[44]=f[44]; t[45]=f[45]; t[46]=f[46]; t[47]=f[47];
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t[48]=f[48]; t[49]=f[49]; t[50]=f[50]; t[51]=f[51];
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t[52]=f[52]; t[53]=f[53]; t[54]=f[54]; t[55]=f[55];
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t[56]=f[56]; t[57]=f[57]; t[58]=f[58]; t[59]=f[59];
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t[60]=f[60]; t[61]=f[61]; t[62]=f[62]; t[63]=f[63];
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#ifdef HAVE_LONG_LONG
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t+=64; f+=64;
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#else
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t[64]=f[64]; t[65]=f[65]; t[66]=f[66]; t[67]=f[67];
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t[68]=f[68]; t[69]=f[69]; t[70]=f[70]; t[71]=f[71];
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t[72]=f[72]; t[73]=f[73]; t[74]=f[74]; t[75]=f[75];
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t[76]=f[76]; t[77]=f[77]; t[78]=f[78]; t[79]=f[79];
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t[80]=f[80]; t[81]=f[81]; t[82]=f[82]; t[83]=f[83];
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t[84]=f[84]; t[85]=f[85]; t[86]=f[86]; t[87]=f[87];
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t[88]=f[88]; t[89]=f[89]; t[90]=f[90]; t[91]=f[91];
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t[92]=f[92]; t[93]=f[93]; t[94]=f[94]; t[95]=f[95];
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t[96]=f[96]; t[97]=f[97]; t[98]=f[98]; t[99]=f[99];
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t[100]=f[100]; t[101]=f[101]; t[102]=f[102]; t[103]=f[103];
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t[104]=f[104]; t[105]=f[105]; t[106]=f[106]; t[107]=f[107];
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t[108]=f[108]; t[109]=f[109]; t[110]=f[110]; t[111]=f[111];
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t[112]=f[112]; t[113]=f[113]; t[114]=f[114]; t[115]=f[115];
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t[116]=f[116]; t[117]=f[117]; t[118]=f[118]; t[119]=f[119];
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t[120]=f[120]; t[121]=f[121]; t[122]=f[122]; t[123]=f[123];
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t[124]=f[124]; t[125]=f[125]; t[126]=f[126]; t[127]=f[127];
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t+=128; f+=128;
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#endif
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} while (f < end);
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#else
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do {
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
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} while (f < end);
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#endif
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return;
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} /* bmove512 */
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#endif /* bmove512 */
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