diff options
Diffstat (limited to 'sysdeps/sparc/sparc64/stpncpy.S')
| -rw-r--r-- | sysdeps/sparc/sparc64/stpncpy.S | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/sysdeps/sparc/sparc64/stpncpy.S b/sysdeps/sparc/sparc64/stpncpy.S deleted file mode 100644 index 537d29257f..0000000000 --- a/sysdeps/sparc/sparc64/stpncpy.S +++ /dev/null @@ -1,424 +0,0 @@ -/* stpncpy(DST, SRC, COUNT) - Copy no more than N characters of - SRC to DEST, returning the address of the terminating '\0' in - DEST, if any, or else DEST + N. - For SPARC v9. - Copyright (C) 1998-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jj@ultra.linux.cz> and - Jan Vondrak <jvon4518@ss1000.ms.mff.cuni.cz>. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <asm/asi.h> -#ifndef XCC -#define XCC xcc -#define USE_BPR - .register %g2, #scratch - .register %g3, #scratch - .register %g6, #scratch -#endif - - /* Normally, this uses - ((xword - 0x0101010101010101) & 0x8080808080808080) test - to find out if any byte in xword could be zero. This is fast, but - also gives false alarm for any byte in range 0x81-0xff. It does - not matter for correctness, as if this test tells us there could - be some zero byte, we check it byte by byte, but if bytes with - high bits set are common in the strings, then this will give poor - performance. You can #define EIGHTBIT_NOT_RARE and the algorithm - will use one tick slower, but more precise test - ((xword - 0x0101010101010101) & (~xword) & 0x8080808080808080), - which does not give any false alarms (but if some bits are set, - one cannot assume from it which bytes are zero and which are not). - It is yet to be measured, what is the correct default for glibc - in these days for an average user. - */ - - .text - .align 32 -ENTRY(__stpncpy) - sethi %hi(0x01010101), %g1 /* IEU0 Group */ -#ifdef USE_BPR - brz,pn %o2, 19f /* CTI+IEU1 */ -#else - tst %o2 /* IEU1 */ - be,pn %XCC, 19f /* CTI */ -#endif - or %g1, %lo(0x01010101), %g1 /* IEU1 */ - andcc %o0, 7, %g0 /* IEU1 Group */ - - sllx %g1, 32, %g2 /* IEU0 */ - bne,pn %icc, 26f /* CTI */ - or %g1, %g2, %g1 /* IEU0 Group */ - andcc %o1, 7, %g3 /* IEU1 */ - - bne,pn %icc, 28f /* CTI */ - sllx %g1, 7, %g2 /* IEU0 Group */ - ldx [%o1], %o3 /* Load */ -1: add %o1, 8, %o1 /* IEU1 */ - -2: subcc %o2, 8, %o2 /* IEU1 Group */ - bl,pn %XCC, 18f /* CTI */ - sub %o3, %g1, %o4 /* IEU0 */ - add %o0, 8, %o0 /* IEU0 Group */ - -#ifdef EIGHTBIT_NOT_MORE - andn %o4, %o3, %o4 /* IEU1 */ -#endif - mov %o3, %g3 /* IEU1 */ - ldxa [%o1] ASI_PNF, %o3 /* Load */ - add %o1, 8, %o1 /* IEU0 Group */ - andcc %o4, %g2, %g0 /* IEU1 */ - - be,a,pt %xcc, 2b /* CTI */ - stx %g3, [%o0-8] /* Store Group */ - srlx %g3, 56, %g5 /* IEU0 Group */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 16f /* CTI */ - srlx %g3, 48, %g4 /* IEU0 */ - andcc %g4, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 15f /* CTI */ - - srlx %g3, 40, %g5 /* IEU0 */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 14f /* CTI */ - srlx %g3, 32, %g4 /* IEU0 */ - - andcc %g4, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 13f /* CTI */ - srlx %g3, 24, %g5 /* IEU0 */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 12f /* CTI */ - srlx %g3, 16, %g4 /* IEU0 */ - andcc %g4, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 11f /* CTI */ - - srlx %g3, 8, %g5 /* IEU0 */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 10f /* CTI */ - sub %o0, 1, %g6 /* IEU0 */ - - andcc %g3, 0xff, %g0 /* IEU1 Group */ - bne,pt %icc, 2b /* CTI */ -3: stx %g3, [%o0-8] /* Store */ - andncc %o2, 31, %g3 /* IEU1 Group */ - -4: be,pn %XCC, 41f /* CTI */ - and %o2, 31, %o2 /* IEU1 Group */ -40: stx %g0, [%o0] /* Store */ - stx %g0, [%o0 + 8] /* Store Group */ - - subcc %g3, 32, %g3 /* IEU1 */ - stx %g0, [%o0 + 16] /* Store Group */ - stx %g0, [%o0 + 24] /* Store Group */ - bne,pt %XCC, 40b /* CTI */ - - add %o0, 32, %o0 /* IEU0 */ -41: subcc %o2, 8, %o2 /* IEU1 Group */ - bl,a,pn %XCC, 6f /* CTI */ - andcc %o2, 4, %g0 /* IEU1 Group */ - -5: stx %g0, [%o0] /* Store */ - subcc %o2, 8, %o2 /* IEU1 Group */ - bge,pt %XCC, 5b /* CTI */ - add %o0, 8, %o0 /* IEU0 */ - - andcc %o2, 4, %g0 /* IEU1 Group */ -6: be,a,pn %icc, 7f /* CTI */ - andcc %o2, 2, %g0 /* IEU1 Group */ - stw %g0, [%o0] /* Store */ - - add %o0, 4, %o0 /* IEU0 */ - andcc %o2, 2, %g0 /* IEU1 Group */ -7: be,a,pn %icc, 8f /* CTI */ - andcc %o2, 1, %g0 /* IEU1 Group */ - - sth %g0, [%o0] /* Store */ - add %o0, 2, %o0 /* IEU0 */ - andcc %o2, 1, %g0 /* IEU1 Group */ -8: bne,a,pn %icc, 9f /* CTI */ - - stb %g0, [%o0] /* Store */ -9: retl /* CTI+IEU1 Group */ - mov %g6, %o0 /* IEU0 */ -10: subcc %o0, 2, %g6 /* IEU1 Group */ - - ba,pt %xcc, 3b /* CTI */ - sllx %g5, 8, %g3 /* IEU0 */ -11: subcc %o0, 3, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - - sllx %g4, 16, %g3 /* IEU0 */ -12: subcc %o0, 4, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - sllx %g5, 24, %g3 /* IEU0 */ - -13: subcc %o0, 5, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - sllx %g4, 32, %g3 /* IEU0 */ -14: subcc %o0, 6, %g6 /* IEU1 Group */ - - ba,pt %xcc, 3b /* CTI */ - sllx %g5, 40, %g3 /* IEU0 */ -15: subcc %o0, 7, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - - sllx %g4, 48, %g3 /* IEU0 */ -16: subcc %o0, 8, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - clr %g3 /* IEU0 */ - - .align 16 -17: or %o3, %o4, %o3 /* IEU0 Group */ - sub %o3, %g1, %o4 /* IEU1 */ -18: addcc %o2, 8, %o2 /* IEU1 Group */ - be,pn %XCC, 19f /* CTI */ - - andcc %o4, %g2, %g0 /* IEU1 Group */ - be,pt %xcc, 21f /* CTI */ - srlx %o3, 56, %g5 /* IEU0 */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 20f /* CTI */ - stb %g5, [%o0] /* Store */ - add %o0, 1, %o0 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - - be,pn %XCC, 19f /* CTI */ - srlx %o3, 48, %g5 /* IEU0 Group */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 20f /* CTI */ - - stb %g5, [%o0] /* Store */ - add %o0, 1, %o0 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - be,pn %XCC, 19f /* CTI */ - - srlx %o3, 40, %g5 /* IEU0 Group */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 20f /* CTI */ - stb %g5, [%o0] /* Store */ - - add %o0, 1, %o0 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - be,pn %XCC, 19f /* CTI */ - srlx %o3, 32, %g5 /* IEU0 Group */ - - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 20f /* CTI */ - stb %g5, [%o0] /* Store */ - add %o0, 1, %o0 /* IEU0 Group */ - - subcc %o2, 1, %o2 /* IEU1 */ - be,pn %XCC, 19f /* CTI */ - srlx %o3, 24, %g5 /* IEU0 Group */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 20f /* CTI */ - stb %g5, [%o0] /* Store */ - add %o0, 1, %o0 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - - be,pn %XCC, 19f /* CTI */ - srlx %o3, 16, %g5 /* IEU0 Group */ - andcc %g5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 20f /* CTI */ - - stb %g5, [%o0] /* Store */ - add %o0, 1, %o0 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - be,pn %XCC, 19f /* CTI */ - - srlx %o3, 8, %o3 /* IEU0 Group */ - stb %o3, [%o0] /* Store */ -59: add %o0, 1, %o2 /* IEU1 */ - andcc %o3, 0xff, %g0 /* IEU1 Group */ - - retl /* CTI+IEU1 Group */ - movne %icc, %o2, %o0 /* Single Group */ -19: retl /* CTI+IEU1 Group */ - nop /* IEU0 */ - -20: mov %o0, %g6 /* IEU0 Group */ - subcc %o2, 1, %o2 /* IEU1 */ - be,pn %XCC, 51f /* CTI */ - add %o0, 1, %o0 /* IEU0 Group */ - -50: stb %g0, [%o0] /* Store Group */ - subcc %o2, 1, %o2 /* IEU1 Group */ - bne,pt %XCC, 50b /* CTI */ - add %o0, 1, %o0 /* IEU0 */ - -51: retl /* CTI+IEU1 Group */ - mov %g6, %o0 /* IEU0 */ - - .align 16 -21: andcc %o2, 4, %g0 /* IEU1 Group */ - be,pn %icc, 22f /* CTI */ - srlx %o3, 32, %g5 /* IEU0 */ - stw %g5, [%o0] /* Store Group */ - - add %o0, 4, %o0 /* IEU0 */ - mov %o3, %g5 /* IEU1 */ -22: andcc %o2, 2, %g0 /* IEU1 Group */ - be,pn %icc, 23f /* CTI */ - - srlx %g5, 16, %g4 /* IEU0 */ - sth %g4, [%o0] /* Store Group */ - add %o0, 2, %o0 /* IEU0 */ - mov %g5, %g4 /* IEU1 */ - -23: srlx %g4, 8, %g4 /* IEU0 Group */ - andcc %o2, 1, %g0 /* IEU1 */ - bne,a,pn %icc, 24f /* CTI */ - stb %g4, [%o0] /* Store Group */ - - retl /* CTI+IEU1 Group */ - nop /* IEU0 */ -24: retl /* CTI+IEU1 Group */ - add %o0, 1, %o0 /* IEU0 */ - - .align 16 -55: sub %o0, 1, %g6 /* IEU0 Group */ -25: andcc %o0, 7, %g0 /* IEU1 */ - be,a,pn %icc, 4b /* CTI */ - andncc %o2, 31, %g3 /* IEU1 Group */ - - stb %g0, [%o0] /* Store Group */ - subcc %o2, 1, %o2 /* IEU1 */ - bne,pt %XCC, 25b /* CTI */ - add %o0, 1, %o0 /* IEU0 Group */ - - retl /* CTI+IEU1 Group */ - mov %g6, %o0 /* IEU0 */ - - .align 16 -26: ldub [%o1], %o3 /* Load */ - sllx %g1, 7, %g2 /* IEU0 Group */ - stb %o3, [%o0] /* Store */ -27: subcc %o2, 1, %o2 /* IEU1 */ - - be,pn %XCC, 59b /* CTI */ - add %o1, 1, %o1 /* IEU0 Group */ - add %o0, 1, %o0 /* IEU1 */ - andcc %o3, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 55b /* CTI */ - lduba [%o1] ASI_PNF, %o3 /* Load */ - andcc %o0, 7, %g0 /* IEU1 Group */ - bne,a,pt %icc, 27b /* CTI */ - - stb %o3, [%o0] /* Store */ - andcc %o1, 7, %g3 /* IEU1 Group */ - be,a,pt %icc, 1b /* CTI */ - ldx [%o1], %o3 /* Load */ - -28: orcc %g0, 64, %g4 /* IEU1 Group */ - sllx %g3, 3, %g5 /* IEU0 */ - sub %g4, %g5, %g4 /* IEU0 Group */ - sub %o1, %g3, %o1 /* IEU1 */ - /* %g1 = 0101010101010101 - %g2 = 8080808080808080 - %g3 = source alignment - %g5 = number of bits to shift left - %g4 = number of bits to shift right */ - - ldxa [%o1] ASI_PNF, %o5 /* Load Group */ - addcc %o1, 8, %o1 /* IEU1 */ -29: sllx %o5, %g5, %o3 /* IEU0 Group */ - ldxa [%o1] ASI_PNF, %o5 /* Load */ - - subcc %o2, 8, %o2 /* IEU1 */ - bl,pn %XCC, 17b /* CTI */ - srlx %o5, %g4, %o4 /* IEU0 Group */ - add %o1, 8, %o1 /* IEU1 */ - - or %o3, %o4, %o3 /* IEU0 Group */ - add %o0, 8, %o0 /* IEU1 */ - sub %o3, %g1, %o4 /* IEU0 Group */ -#ifdef EIGHTBIT_NOT_RARE - andn %o4, %o3, %o4 /* IEU0 Group */ -#endif - andcc %o4, %g2, %g0 /* IEU1 Group */ - - be,a,pt %xcc, 29b /* CTI */ - stx %o3, [%o0-8] /* Store */ - srlx %o3, 56, %o4 /* IEU0 Group */ - andcc %o4, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 36f /* CTI */ - srlx %o3, 48, %g6 /* IEU0 */ - andcc %g6, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 35f /* CTI */ - - srlx %o3, 40, %o4 /* IEU0 */ - andcc %o4, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 34f /* CTI */ - srlx %o3, 32, %g6 /* IEU0 */ - - andcc %g6, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 33f /* CTI */ - srlx %o3, 24, %o4 /* IEU0 */ - andcc %o4, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 32f /* CTI */ - srlx %o3, 16, %g6 /* IEU0 */ - andcc %g6, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 31f /* CTI */ - - srlx %o3, 8, %o4 /* IEU0 */ - andcc %o4, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 30f /* CTI */ - andcc %o3, 0xff, %g0 /* IEU1 Group */ - - bne,pn %icc, 29b /* CTI */ - stx %o3, [%o0-8] /* Store */ - sub %o0, 1, %g6 /* IEU0 Group */ - ba,pt %xcc, 4b /* CTI */ - - andncc %o2, 31, %g3 /* IEU1 */ -30: subcc %o0, 2, %g6 /* IEU0 */ - ba,pt %xcc, 3b /* CTI */ - sllx %o4, 8, %g3 /* IEU0 Group */ - -31: sllx %g6, 16, %g3 /* IEU0 Group */ - ba,pt %xcc, 3b /* CTI */ - sub %o0, 3, %g6 /* IEU1 */ -32: subcc %o0, 4, %g6 /* IEU1 Group */ - - ba,pt %xcc, 3b /* CTI */ - sllx %o4, 24, %g3 /* IEU0 */ -33: sllx %g6, 32, %g3 /* IEU0 Group */ - ba,pt %xcc, 3b /* CTI */ - - sub %o0, 5, %g6 /* IEU1 */ -34: subcc %o0, 6, %g6 /* IEU1 Group */ - ba,pt %xcc, 3b /* CTI */ - sllx %o4, 40, %g3 /* IEU0 */ - -35: sllx %g6, 48, %g3 /* IEU0 Group */ - ba,pt %xcc, 3b /* CTI */ - sub %o0, 7, %g6 /* IEU1 */ -36: subcc %o0, 8, %g6 /* IEU1 Group */ - - ba,pt %xcc, 3b /* CTI */ - sllx %o4, 56, %g3 /* IEU0 */ -END(__stpncpy) - -libc_hidden_def (__stpncpy) -weak_alias (__stpncpy, stpncpy) |