strcspn.s

Glibc 2.3.2源代码(解压后有100多M)

/* strcspn (str, ss) -- Return the length of the initial segment of STR
                        which contains no characters from SS.
   For SPARC v9.
   Copyright (C) 1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <[e-mail]>

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <sysdep.h>
#include <asm/asi.h>
#ifndef XCC
#define XCC xcc
#define STACK_SIZE	128
#define STACK_OFFSET	128+0x7ff
	.register	%g2, #scratch
#else
#define STACK_SIZE	64
#define STACK_OFFSET	64
#endif

	.text
	.align		32
ENTRY(strcspn)
	sub		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	mov		1, %o4				/* IEU1				*/
	stx		%o4, [%sp + STACK_OFFSET]	/* Store	Group		*/
	mov		%o0, %g4			/* IEU0				*/

	stx		%g0, [%sp + STACK_OFFSET + 8]	/* Store	Group		*/
	add		%sp, STACK_OFFSET, %o5		/* IEU0				*/
	stx		%g0, [%sp + STACK_OFFSET + 16]	/* Store	Group		*/
	stx		%g0, [%sp + STACK_OFFSET + 24]	/* Store	Group		*/

1:	ldub		[%o1], %o2			/* Load		Group		*/
	brz,pn		%o2, 2f				/* CTI+IEU1	Group		*/
	 srl		%o2, 3, %o3			/* IEU0				*/
	and		%o3, 0x18, %o3			/* IEU0		Group		*/

	and		%o2, 0x3f, %o2			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/
	sllx		%o4, %o2, %g1			/* IEU0				*/
	add		%o1, 1, %o1			/* IEU1				*/

	or		%g2, %g1, %g2			/* IEU0		Group		*/
	ba,pt		%xcc, 1b			/* CTI				*/
	 stx		%g2, [%o5 + %o3]		/* Store			*/
2:	andcc		%o0, 7, %g0			/* IEU1		Group		*/

	be,a,pt		%xcc, 4f			/* CTI				*/
	 ldx		[%o0], %o2			/* Load				*/
	ldub		[%o0], %o2			/* Load		Group		*/
3:	srl		%o2, 3, %o3			/* IEU0		Group		*/

	and		%o2, 0x3f, %o2			/* IEU1				*/
	and		%o3, 0x18, %o3			/* IEU0		Group		*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/
	sllx		%o4, %o2, %g1			/* IEU0				*/

	add		%o0, 1, %o0			/* IEU1				*/
	andcc		%g2, %g1, %g0			/* IEU1		Group		*/
	bne,pn		%xcc, 12f			/* CTI				*/
	 andcc		%o0, 7, %g0			/* IEU1		Group		*/

	bne,a,pt	%icc, 3b			/* CTI				*/
	 ldub		[%o0], %o2			/* Load				*/
	ldx		[%o0], %o2			/* Load		Group		*/
4:	srlx		%o2, 59, %o3			/* IEU0		Group		*/

	srlx		%o2, 56, %g5			/* IEU0		Group		*/
5:	and		%o3, 0x18, %o3			/* IEU1				*/
	andcc		%g5, 0x3f, %g5			/* IEU1		Group		*/
	ldx		[%o5 + %o3], %g2		/* Load				*/

	srlx		%o2, 51, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	srlx		%o2, 48, %g5			/* IEU0		Group		*/
	andcc		%g2, %g1, %g2			/* IEU1				*/

	bne,pn		%xcc, 13f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/

	srlx		%o2, 43, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	srlx		%o2, 40, %g5			/* IEU0		Group		*/
	andcc		%g2, %g1, %g2			/* IEU1				*/

	bne,pn		%xcc, 14f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/

	srlx		%o2, 35, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	srlx		%o2, 32, %g5			/* IEU0		Group		*/
	andcc		%g2, %g1, %g2			/* IEU1				*/

	bne,pn		%xcc, 15f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/

	srlx		%o2, 27, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	srlx		%o2, 24, %g5			/* IEU0		Group		*/
	andcc		%g2, %g1, %g2			/* IEU1				*/

	bne,pn		%xcc, 16f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/

	srlx		%o2, 19, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	srlx		%o2, 16, %g5			/* IEU0		Group		*/
	andcc		%g2, %g1, %g2			/* IEU1				*/

	bne,pn		%xcc, 17f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/

	srlx		%o2, 11, %o3			/* IEU0				*/
	sllx		%o4, %g5, %g1			/* IEU0		Group		*/
	add		%o0, 8, %o0			/* IEU1				*/
	srlx		%o2, 8, %g5			/* IEU0		Group		*/

	andcc		%g2, %g1, %g2			/* IEU1				*/
	bne,pn		%xcc, 18f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/
	and		%g5, 0x3f, %g5			/* IEU1				*/

	ldx		[%o5 + %o3], %g2		/* Load		Group		*/
	sllx		%o4, %g5, %g1			/* IEU0				*/
	mov		%o2, %g5			/* IEU1				*/
	srlx		%o2, 3, %o3			/* IEU0		Group		*/

	ldxa		[%o0] ASI_PNF, %o2		/* Load				*/
	andcc		%g2, %g1, %g2			/* IEU1		Group		*/
	bne,pn		%xcc, 19f			/* CTI				*/
	 and		%o3, 0x18, %o3			/* IEU0		Group		*/

	and		%g5, 0x3f, %g5			/* IEU1				*/
	ldx		[%o5 + %o3], %g2		/* Load		Group		*/
	sllx		%o4, %g5, %g1			/* IEU0				*/
	srlx		%o2, 59, %o3			/* IEU0		Group		*/

	andcc		%g2, %g1, %g2			/* IEU1		Group		*/
	be,pt		%xcc, 5b			/* CTI				*/
	 srlx		%o2, 56, %g5			/* IEU0		Group		*/
	sub		%o0, 1, %o0			/* IEU1				*/

	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

	.align		16
19:	sub		%o0, 2, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

18:	sub		%o0, 3, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

17:	add		%o0, 4, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

16:	add		%o0, 3, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

15:	add		%o0, 2, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

14:	add		%o0, 1, %o0			/* IEU1				*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU0		Group		*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

13:	add		%sp, STACK_SIZE+32, %sp		/* IEU1				*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/

	.align		16
12:	sub		%o0, 1, %o0			/* IEU0		Group		*/
	add		%sp, STACK_SIZE+32, %sp		/* IEU1				*/
	retl						/* CTI+IEU1	Group		*/
	 sub		%o0, %g4, %o0			/* IEU0				*/
END(strcspn)