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NetBSD/lib/libc/arch/i386/stdlib/div.S

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Provide i386 versions of div and ldiv -- they are simpler than the C versions, since the idiv instruction does the right thing wrt truncating towards zero.
1993-10-09 02:57:13 +03:00
/*
Winning Strategies has placed this code into the Public Domain
1995-04-29 02:59:46 +04:00
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
Provide i386 versions of div and ldiv -- they are simpler than the C versions, since the idiv instruction does the right thing wrt truncating towards zero.
1993-10-09 02:57:13 +03:00
*/
Use RCSID macro.
1994-03-12 04:48:26 +03:00
#include <machine/asm.h>
Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change th LIBC_RCS, the entire source tree should be updated at once. Remove && !defined(lint) from conditionals around rcs id's. No one is ever going to pass a *.s file through lint.
1993-10-21 04:39:55 +03:00
#if defined(LIBC_SCCS)
Winning Strategies has placed this code into the Public Domain
1995-04-29 02:59:46 +04:00
RCSID("$NetBSD: div.S,v 1.5 1995/04/28 22:59:46 jtc Exp $")
Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change th LIBC_RCS, the entire source tree should be updated at once. Remove && !defined(lint) from conditionals around rcs id's. No one is ever going to pass a *.s file through lint.
1993-10-21 04:39:55 +03:00
#endif
Provide i386 versions of div and ldiv -- they are simpler than the C versions, since the idiv instruction does the right thing wrt truncating towards zero.
1993-10-09 02:57:13 +03:00
ENTRY(div)
movl 4(%esp),%eax
movl 8(%esp),%ecx
cdq
idiv %ecx
movl %eax,4(%esp)
movl %edx,8(%esp)
ret