linux/arch/sparc/lib/ashrdi3.S

/* $Id: ashrdi3.S,v 1.4 1999/11/19 04:11:49 davem Exp $
 * ashrdi3.S:	The filesystem code creates all kinds of references to
 *              this little routine on the sparc with gcc.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

	.text
	.align	4
	.globl __ashrdi3
__ashrdi3:
	tst	%o2
	be	3f
	 or	%g0, 32, %g2

	sub	%g2, %o2, %g2

	tst	%g2
	bg	1f
	 sra	%o0, %o2, %o4

	sra	%o0, 31, %o4
	sub	%g0, %g2, %g2
	ba	2f
	 sra	%o0, %g2, %o5

1:
	sll	%o0, %g2, %g3
	srl	%o1, %o2, %g2
	or	%g2, %g3, %o5
2:
	or	%g0, %o4, %o0
	or	%g0, %o5, %o1
3:
	jmpl	%o7 + 8, %g0
	 nop
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-16 22:20:36 +00:00			`/* $Id: ashrdi3.S,v 1.4 1999/11/19 04:11:49 davem Exp $`
			`* ashrdi3.S: The filesystem code creates all kinds of references to`
			`* this little routine on the sparc with gcc.`
			`*`
			`* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)`
			`*/`

			`.text`
			`.align 4`
			`.globl __ashrdi3`
			`__ashrdi3:`
			`tst %o2`
			`be 3f`
			`or %g0, 32, %g2`

			`sub %g2, %o2, %g2`

			`tst %g2`
			`bg 1f`
			`sra %o0, %o2, %o4`

			`sra %o0, 31, %o4`
			`sub %g0, %g2, %g2`
			`ba 2f`
			`sra %o0, %g2, %o5`

			`1:`
			`sll %o0, %g2, %g3`
			`srl %o1, %o2, %g2`
			`or %g2, %g3, %o5`
			`2:`
			`or %g0, %o4, %o0`
			`or %g0, %o5, %o1`
			`3:`
			`jmpl %o7 + 8, %g0`
			`nop`