From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001 From: PikalaxALT Date: Fri, 15 Dec 2017 09:38:53 -0500 Subject: Import newlib and create makefile --- newlib/libc/machine/i386/memset.S | 59 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 newlib/libc/machine/i386/memset.S (limited to 'newlib/libc/machine/i386/memset.S') diff --git a/newlib/libc/machine/i386/memset.S b/newlib/libc/machine/i386/memset.S new file mode 100644 index 0000000..12e33e4 --- /dev/null +++ b/newlib/libc/machine/i386/memset.S @@ -0,0 +1,59 @@ +/* + * ==================================================== + * Copyright (C) 1998 by Cygnus Solutions. All rights reserved. + * + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + + #include "i386mach.h" + + .global SYM (memset) + +SYM (memset): + + pushl ebp + movl esp,ebp + pushl edi + pushl ebx + movl 8(ebp),edi + movl 12(ebp),eax + movl 16(ebp),ecx + cld + +#ifndef __OPTIMIZE_SIZE__ + andl $255,eax + movl ecx,ebx + testl $3,edi + jne .L19 + cmpl $16,ecx + jbe .L19 + + movl eax,edx + sall $8,eax + orl edx,eax + + movl eax,edx + sall $16,edx + orl edx,eax + + shrl $2,ecx + andl $3,ebx + rep + stosl + movl ebx,ecx +#endif /* not __OPTIMIZE_SIZE__ */ + +.L19: + rep + stosb + + movl 8(ebp),eax + + leal -8(ebp),esp + popl ebx + popl edi + leave + ret -- cgit v1.2.3