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Diffstat (limited to 'include/intcvt.h')
| -rw-r--r-- | include/intcvt.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/include/intcvt.h b/include/intcvt.h new file mode 100644 index 0000000..12ef59a --- /dev/null +++ b/include/intcvt.h @@ -0,0 +1,124 @@ +/* + * This file has been modified for the cdrkit suite. + * + * The behaviour and appearence of the program code below can differ to a major + * extent from the version distributed by the original author(s). + * + * For details, see Changelog file distributed with the cdrkit package. If you + * received this file from another source then ask the distributing person for + * a log of modifications. + * + */ + +/* @(#)intcvt.h 1.4 03/12/29 Copyright 1986-2003 J. Schilling */ +/* + * Definitions for conversion to/from integer data types of various size. + * + * Copyright (c) 1986-2003 J. Schilling + */ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; see the file COPYING. If not, write to the Free Software + * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef _INTCVT_H +#define _INTCVT_H + +#ifndef _MCONFIG_H +#include <mconfig.h> +#endif + +#define i_to_2_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[1] = (i) & 0xFF) + +#define i_to_3_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 16)& 0xFF,\ + ((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[2] = (i) & 0xFF) + +#define i_to_4_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 24)& 0xFF,\ + ((Uchar *)(a))[1] = ((i) >> 16)& 0xFF,\ + ((Uchar *)(a))[2] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[3] = (i) & 0xFF) + + + +#define a_to_byte(a) (((Int8_t *) a)[0]) + +#define a_to_u_byte(a) ((UInt8_t) \ + (((Uchar *) a)[0] & 0xFF)) + +#define a_to_u_2_byte(a) ((UInt16_t) \ + ((((Uchar *) a)[1] & 0xFF) | \ + (((Uchar *) a)[0] << 8 & 0xFF00))) + +#define a_to_2_byte(a) (int)(Int16_t)a_to_u_2_byte(a) + +#define a_to_u_3_byte(a) ((Ulong) \ + ((((Uchar *) a)[2] & 0xFF) | \ + (((Uchar *) a)[1] << 8 & 0xFF00) | \ + (((Uchar *) a)[0] << 16 & 0xFF0000))) + +#define a_to_3_byte(a) a_to_u_3_byte(a) /* XXX Is there a signed version ? */ + +#ifdef __STDC__ +# define __TOP_4BYTE 0xFF000000UL +#else +# define __TOP_4BYTE 0xFF000000 +#endif + +#define a_to_u_4_byte(a) ((Ulong) \ + ((((Uchar*) a)[3] & 0xFF) | \ + (((Uchar*) a)[2] << 8 & 0xFF00) | \ + (((Uchar*) a)[1] << 16 & 0xFF0000) | \ + (((Uchar*) a)[0] << 24 & __TOP_4BYTE))) + +#define a_to_4_byte(a) (long)(Int32_t)a_to_u_4_byte(a) + +/* + * Little Endian versions of above macros + */ +#define li_to_2_byte(a, i) (((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[0] = (i) & 0xFF) + +#define li_to_3_byte(a, i) (((Uchar *)(a))[2] = ((i) >> 16)& 0xFF,\ + ((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[0] = (i) & 0xFF) + +#define li_to_4_byte(a, i) (((Uchar *)(a))[3] = ((i) >> 24)& 0xFF,\ + ((Uchar *)(a))[2] = ((i) >> 16)& 0xFF,\ + ((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\ + ((Uchar *)(a))[0] = (i) & 0xFF) + + +#define la_to_u_2_byte(a) ((UInt16_t) \ + ((((Uchar*) a)[0] & 0xFF) | \ + (((Uchar*) a)[1] << 8 & 0xFF00))) + +#define la_to_2_byte(a) (int)(Int16_t)la_to_u_2_byte(a) + +#define la_to_u_3_byte(a) ((Ulong) \ + ((((Uchar*) a)[0] & 0xFF) | \ + (((Uchar*) a)[1] << 8 & 0xFF00) | \ + (((Uchar*) a)[2] << 16 & 0xFF0000))) + +#define la_to_3_byte(a) la_to_u_3_byte(a) /* XXX Is there a signed version ? */ + +#define la_to_u_4_byte(a) ((Ulong) \ + ((((Uchar*) a)[0] & 0xFF) | \ + (((Uchar*) a)[1] << 8 & 0xFF00) | \ + (((Uchar*) a)[2] << 16 & 0xFF0000) | \ + (((Uchar*) a)[3] << 24 & __TOP_4BYTE))) + +#define la_to_4_byte(a) (long)(Int32_t)la_to_u_4_byte(a) + +#endif /* _INTCVT_H */ |