From b1dacd89d9c1655592702062d68caf7f9da5bf5c Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 6 Jun 2002 01:55:15 +0000 Subject: [PATCH] remove no longer needed xfs_bit.c file. --- libxfs/xfs_bit.c | 307 ----------------------------------------------- 1 file changed, 307 deletions(-) delete mode 100644 libxfs/xfs_bit.c diff --git a/libxfs/xfs_bit.c b/libxfs/xfs_bit.c deleted file mode 100644 index 5caf42228..000000000 --- a/libxfs/xfs_bit.c +++ /dev/null @@ -1,307 +0,0 @@ -/* - * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * Further, this software is distributed without any warranty that it is - * free of the rightful claim of any third person regarding infringement - * or the like. Any license provided herein, whether implied or - * otherwise, applies only to this software file. Patent licenses, if - * any, provided herein do not apply to combinations of this program with - * other software, or any other product whatsoever. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, - * Mountain View, CA 94043, or: - * - * http://www.sgi.com - * - * For further information regarding this notice, see: - * - * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ - */ - -/* - * XFS bit manipulation routines, used in non-realtime code. - */ - -#include - -/* - * Index of low bit number in byte, -1 for none set, 0..7 otherwise. - */ -const char xfs_lowbit[256] = { - -1, 0, 1, 0, 2, 0, 1, 0, /* 00 .. 07 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 08 .. 0f */ - 4, 0, 1, 0, 2, 0, 1, 0, /* 10 .. 17 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 18 .. 1f */ - 5, 0, 1, 0, 2, 0, 1, 0, /* 20 .. 27 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 28 .. 2f */ - 4, 0, 1, 0, 2, 0, 1, 0, /* 30 .. 37 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 38 .. 3f */ - 6, 0, 1, 0, 2, 0, 1, 0, /* 40 .. 47 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 48 .. 4f */ - 4, 0, 1, 0, 2, 0, 1, 0, /* 50 .. 57 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 58 .. 5f */ - 5, 0, 1, 0, 2, 0, 1, 0, /* 60 .. 67 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 68 .. 6f */ - 4, 0, 1, 0, 2, 0, 1, 0, /* 70 .. 77 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 78 .. 7f */ - 7, 0, 1, 0, 2, 0, 1, 0, /* 80 .. 87 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 88 .. 8f */ - 4, 0, 1, 0, 2, 0, 1, 0, /* 90 .. 97 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* 98 .. 9f */ - 5, 0, 1, 0, 2, 0, 1, 0, /* a0 .. a7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* a8 .. af */ - 4, 0, 1, 0, 2, 0, 1, 0, /* b0 .. b7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* b8 .. bf */ - 6, 0, 1, 0, 2, 0, 1, 0, /* c0 .. c7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* c8 .. cf */ - 4, 0, 1, 0, 2, 0, 1, 0, /* d0 .. d7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* d8 .. df */ - 5, 0, 1, 0, 2, 0, 1, 0, /* e0 .. e7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* e8 .. ef */ - 4, 0, 1, 0, 2, 0, 1, 0, /* f0 .. f7 */ - 3, 0, 1, 0, 2, 0, 1, 0, /* f8 .. ff */ -}; - -/* - * Index of high bit number in byte, -1 for none set, 0..7 otherwise. - */ -const char xfs_highbit[256] = { - -1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */ - 3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */ - 4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */ - 4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */ - 5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */ - 5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */ - 5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */ - 5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */ - 6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */ - 7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */ - 7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */ - 7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */ - 7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */ - 7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */ - 7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */ - 7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */ - 7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */ - 7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */ -}; - -/* - * Count of bits set in byte, 0..8. - */ -const char xfs_countbit[256] = { - 0, 1, 1, 2, 1, 2, 2, 3, /* 00 .. 07 */ - 1, 2, 2, 3, 2, 3, 3, 4, /* 08 .. 0f */ - 1, 2, 2, 3, 2, 3, 3, 4, /* 10 .. 17 */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 18 .. 1f */ - 1, 2, 2, 3, 2, 3, 3, 4, /* 20 .. 27 */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 28 .. 2f */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 30 .. 37 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* 38 .. 3f */ - 1, 2, 2, 3, 2, 3, 3, 4, /* 40 .. 47 */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 48 .. 4f */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 50 .. 57 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* 58 .. 5f */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 60 .. 67 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* 68 .. 6f */ - 3, 4, 4, 5, 4, 5, 5, 6, /* 70 .. 77 */ - 4, 5, 5, 6, 5, 6, 6, 7, /* 78 .. 7f */ - 1, 2, 2, 3, 2, 3, 3, 4, /* 80 .. 87 */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 88 .. 8f */ - 2, 3, 3, 4, 3, 4, 4, 5, /* 90 .. 97 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* 98 .. 9f */ - 2, 3, 3, 4, 3, 4, 4, 5, /* a0 .. a7 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* a8 .. af */ - 3, 4, 4, 5, 4, 5, 5, 6, /* b0 .. b7 */ - 4, 5, 5, 6, 5, 6, 6, 7, /* b8 .. bf */ - 2, 3, 3, 4, 3, 4, 4, 5, /* c0 .. c7 */ - 3, 4, 4, 5, 4, 5, 5, 6, /* c8 .. cf */ - 3, 4, 4, 5, 4, 5, 5, 6, /* d0 .. d7 */ - 4, 5, 5, 6, 5, 6, 6, 7, /* d8 .. df */ - 3, 4, 4, 5, 4, 5, 5, 6, /* e0 .. e7 */ - 4, 5, 5, 6, 5, 6, 6, 7, /* e8 .. ef */ - 4, 5, 5, 6, 5, 6, 6, 7, /* f0 .. f7 */ - 5, 6, 6, 7, 6, 7, 7, 8, /* f8 .. ff */ -}; - -/* - * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set. - */ -int -xfs_highbit32( - __uint32_t v) -{ - int i; - - if (v & 0xffff0000) - if (v & 0xff000000) - i = 24; - else - i = 16; - else if (v & 0x0000ffff) - if (v & 0x0000ff00) - i = 8; - else - i = 0; - else - return -1; - return i + xfs_highbit[(v >> i) & 0xff]; -} - -/* - * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set. - */ -int -xfs_lowbit64( - __uint64_t v) -{ - int i; -#if XFS_64 - if (v & 0x00000000ffffffff) - if (v & 0x000000000000ffff) - if (v & 0x00000000000000ff) - i = 0; - else - i = 8; - else - if (v & 0x0000000000ff0000) - i = 16; - else - i = 24; - else if (v & 0xffffffff00000000) - if (v & 0x0000ffff00000000) - if (v & 0x000000ff00000000) - i = 32; - else - i = 40; - else - if (v & 0x00ff000000000000) - i = 48; - else - i = 56; - else - return -1; - return i + xfs_lowbit[(v >> i) & 0xff]; -#else - __uint32_t vw; - - if ((vw = v)) { - if (vw & 0x0000ffff) - if (vw & 0x000000ff) - i = 0; - else - i = 8; - else - if (vw & 0x00ff0000) - i = 16; - else - i = 24; - return i + xfs_lowbit[(vw >> i) & 0xff]; - } else if ((vw = v >> 32)) { - if (vw & 0x0000ffff) - if (vw & 0x000000ff) - i = 32; - else - i = 40; - else - if (vw & 0x00ff0000) - i = 48; - else - i = 56; - return i + xfs_lowbit[(vw >> (i - 32)) & 0xff]; - } else - return -1; -#endif -} - -/* - * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set. - */ -int -xfs_highbit64( - __uint64_t v) -{ - int i; -#if XFS_64 - if (v & 0xffffffff00000000) - if (v & 0xffff000000000000) - if (v & 0xff00000000000000) - i = 56; - else - i = 48; - else - if (v & 0x0000ff0000000000) - i = 40; - else - i = 32; - else if (v & 0x00000000ffffffff) - if (v & 0x00000000ffff0000) - if (v & 0x00000000ff000000) - i = 24; - else - i = 16; - else - if (v & 0x000000000000ff00) - i = 8; - else - i = 0; - else - return -1; - return i + xfs_highbit[(v >> i) & 0xff]; -#else - __uint32_t vw; - - if ((vw = v >> 32)) { - if (vw & 0xffff0000) - if (vw & 0xff000000) - i = 56; - else - i = 48; - else - if (vw & 0x0000ff00) - i = 40; - else - i = 32; - return i + xfs_highbit[(vw >> (i - 32)) & 0xff]; - } else if ((vw = v)) { - if (vw & 0xffff0000) - if (vw & 0xff000000) - i = 24; - else - i = 16; - else - if (vw & 0x0000ff00) - i = 8; - else - i = 0; - return i + xfs_highbit[(vw >> i) & 0xff]; - } else - return -1; -#endif -} -- 2.47.2