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-rw-r--r--strings/bmove_upp.c51
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diff --git a/strings/bmove_upp.c b/strings/bmove_upp.c
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+++ b/strings/bmove_upp.c
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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 : bmove.c
+ Author : Michael widenius
+ Updated: 1987-03-20
+ Defines: bmove_upp()
+
+ bmove_upp(dst, src, len) moves exactly "len" bytes from the source
+ "src-len" to the destination "dst-len" counting downwards.
+*/
+
+#include <global.h>
+#include "m_string.h"
+
+#if defined(MC68000) && defined(DS90)
+
+/* 0 <= len <= 65535 */
+void bmove_upp(byte *dst, const byte *src,uint len)
+{
+asm(" movl 12(a7),d0 ");
+asm(" subql #1,d0 ");
+asm(" blt .L5 ");
+asm(" movl 4(a7),a1 ");
+asm(" movl 8(a7),a0 ");
+asm(".L4: movb -(a0),-(a1) ");
+asm(" dbf d0,.L4 ");
+asm(".L5: ");
+}
+#else
+
+void bmove_upp(register char *dst, register const char *src, register uint len)
+{
+ while (len-- != 0) *--dst = *--src;
+}
+
+#endif