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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
/* File : bmove512.c
Author : Michael Widenius;
Defines: bmove512()
bmove512(dst, src, len) moves exactly "len" bytes from the source "src"
to the destination "dst". "src" and "dst" must be alligned on long
boundory and len must be a mutliple of 512 byte. If len is not a
multiple of 512 byte len/512*512+1 bytes is copyed.
bmove512 is moustly used to copy IO_BLOCKS. bmove512 should be the
fastest way to move a mutiple of 512 byte.
*/
#include <global.h>
#include "m_string.h"
#ifndef bmove512
#ifdef HAVE_LONG_LONG
#define LONG ulonglong
#else
#define LONG ulonglong
#endif
void bmove512(register gptr to, register const gptr from, register uint length)
{
reg1 LONG *f,*t;
reg3 int len;
f= (LONG*) from;
t= (LONG*) to;
len= (int) length;
#if defined(m88k) || defined(sparc) || defined(HAVE_LONG_LONG)
do {
t[0]=f[0]; t[1]=f[1]; t[2]=f[2]; t[3]=f[3];
t[4]=f[4]; t[5]=f[5]; t[6]=f[6]; t[7]=f[7];
t[8]=f[8]; t[9]=f[9]; t[10]=f[10]; t[11]=f[11];
t[12]=f[12]; t[13]=f[13]; t[14]=f[14]; t[15]=f[15];
t[16]=f[16]; t[17]=f[17]; t[18]=f[18]; t[19]=f[19];
t[20]=f[20]; t[21]=f[21]; t[22]=f[22]; t[23]=f[23];
t[24]=f[24]; t[25]=f[25]; t[26]=f[26]; t[27]=f[27];
t[28]=f[28]; t[29]=f[29]; t[30]=f[30]; t[31]=f[31];
t[32]=f[32]; t[33]=f[33]; t[34]=f[34]; t[35]=f[35];
t[36]=f[36]; t[37]=f[37]; t[38]=f[38]; t[39]=f[39];
t[40]=f[40]; t[41]=f[41]; t[42]=f[42]; t[43]=f[43];
t[44]=f[44]; t[45]=f[45]; t[46]=f[46]; t[47]=f[47];
t[48]=f[48]; t[49]=f[49]; t[50]=f[50]; t[51]=f[51];
t[52]=f[52]; t[53]=f[53]; t[54]=f[54]; t[55]=f[55];
t[56]=f[56]; t[57]=f[57]; t[58]=f[58]; t[59]=f[59];
t[60]=f[60]; t[61]=f[61]; t[62]=f[62]; t[63]=f[63];
#ifdef HAVE_LONG_LONG
t+=64; f+=64;
#else
t[64]=f[64]; t[65]=f[65]; t[66]=f[66]; t[67]=f[67];
t[68]=f[68]; t[69]=f[69]; t[70]=f[70]; t[71]=f[71];
t[72]=f[72]; t[73]=f[73]; t[74]=f[74]; t[75]=f[75];
t[76]=f[76]; t[77]=f[77]; t[78]=f[78]; t[79]=f[79];
t[80]=f[80]; t[81]=f[81]; t[82]=f[82]; t[83]=f[83];
t[84]=f[84]; t[85]=f[85]; t[86]=f[86]; t[87]=f[87];
t[88]=f[88]; t[89]=f[89]; t[90]=f[90]; t[91]=f[91];
t[92]=f[92]; t[93]=f[93]; t[94]=f[94]; t[95]=f[95];
t[96]=f[96]; t[97]=f[97]; t[98]=f[98]; t[99]=f[99];
t[100]=f[100]; t[101]=f[101]; t[102]=f[102]; t[103]=f[103];
t[104]=f[104]; t[105]=f[105]; t[106]=f[106]; t[107]=f[107];
t[108]=f[108]; t[109]=f[109]; t[110]=f[110]; t[111]=f[111];
t[112]=f[112]; t[113]=f[113]; t[114]=f[114]; t[115]=f[115];
t[116]=f[116]; t[117]=f[117]; t[118]=f[118]; t[119]=f[119];
t[120]=f[120]; t[121]=f[121]; t[122]=f[122]; t[123]=f[123];
t[124]=f[124]; t[125]=f[125]; t[126]=f[126]; t[127]=f[127];
t+=128; f+=128;
#endif
} while ((len-=512) > 0);
#else
do {
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
*t++ = *f++; *t++ = *f++; *t++ = *f++; *t++ = *f++;
} while ((len-=512) > 0);
#endif
return;
} /* bmove512 */
#endif /* bmove512 */
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