Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 162)

Chapter
Programming the Scanner
8
8Ć28
/*
**
** BLOCKCPY() –– copy far source buffer to far destination buffer in byte mode.
**
**
This routine replaces _fmemcpy(), which unfortunately uses 16–bit or 32–bit transfers.
** _fmemcpy() is great for general purposes, but unfortunately byte strings get shredded
** when copied to the E–page bus window.
**
**
parameters: far pointer to destination buffer
** far pointer to source buffer
** number of bytes to copy
** return value: none
**
*/
void
blockcpy (void far *dst, void far *src, size_t len)
{
char far *dstptr = (char far *) dst;
char far *srcptr = (char far *) src;
size_t i;
for (i = 0; i < len; i++) {
dstptr[i] = srcptr[i];
}
return;
}