Category : C Source Code
Archive   : ECSTR.ZIP
Filename : MEMSET.C

 
Output of file : MEMSET.C contained in archive : ECSTR.ZIP
/* File : memset.c
Author : Richard A. O'Keefe.
Updated: 25 May 1984
Defines: memset()

memset(dst, chr, len)
fills the memory area dst[0..len-1] with len bytes all equal to chr.
The result is dst. See also bfill(), which has no return value and
puts the last two arguments the other way around.

Note: the VAX assembly code version can only handle 0 <= len < 2^16.
It is presented for your interest and amusement.
*/

#include "strings.h"

#if VaxAsm

char *memset(dst, chr, len)
char *dst;
int chr; /* should be char */
int len;
{
asm("movc5 $0,*4(ap),8(ap),12(ap),*4(ap)");
return dst;
}

#else ~VaxAsm

char *memset(dst, chr, len)
char *dst;
register int chr; /* should be char */
register int len;
{
register char *d;

for (d = dst; --len >= 0; *d++ = chr) ;
return dst;
}

#endif VaxAsm



  3 Responses to “Category : C Source Code
Archive   : ECSTR.ZIP
Filename : MEMSET.C

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/