Mercurial > public > ostc4

annotate ostc4pack/src/crcmodel.h @ 912:57fc479745b0 Evo_2_23

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Ascent speed visualization: Adapted limits for color changes to make sure that 10m/s (used for deco calculations) is still in the green area
author Ideenmodellierer
date Tue, 15 Oct 2024 21:07:07 +0200
parents b70fae5023b4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
161
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
1 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
2 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
3 /* Author : Ross Williams (ross@guest.adelaide.edu.au.). */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
4 /* Date : 3 June 1993. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
5 /* Status : Public domain. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
6 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
7 /* Description : This is the header (.h) file for the reference */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
8 /* implementation of the Rocksoft^tm Model CRC Algorithm. For more */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
9 /* information on the Rocksoft^tm Model CRC Algorithm, see the document */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
10 /* titled "A Painless Guide to CRC Error Detection Algorithms" by Ross */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
11 /* Williams (ross@guest.adelaide.edu.au.). This document is likely to be in */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
12 /* "ftp.adelaide.edu.au/pub/rocksoft". */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
13 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
14 /* Note: Rocksoft is a trademark of Rocksoft Pty Ltd, Adelaide, Australia. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
15 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
16 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
17 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
18 /* How to Use This Package */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
19 /* ----------------------- */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
20 /* Step 1: Declare a variable of type cm_t. Declare another variable */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
21 /* (p_cm say) of type p_cm_t and initialize it to point to the first */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
22 /* variable (e.g. p_cm_t p_cm = &cm_t). */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
23 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
24 /* Step 2: Assign values to the parameter fields of the structure. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
25 /* If you don't know what to assign, see the document cited earlier. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
26 /* For example: */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
27 /* p_cm->cm_width = 16; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
28 /* p_cm->cm_poly = 0x8005L; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
29 /* p_cm->cm_init = 0L; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
30 /* p_cm->cm_refin = TRUE; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
31 /* p_cm->cm_refot = TRUE; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
32 /* p_cm->cm_xorot = 0L; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
33 /* Note: Poly is specified without its top bit (18005 becomes 8005). */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
34 /* Note: Width is one bit less than the raw poly width. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
35 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
36 /* Step 3: Initialize the instance with a call cm_ini(p_cm); */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
37 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
38 /* Step 4: Process zero or more message bytes by placing zero or more */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
39 /* successive calls to cm_nxt. Example: cm_nxt(p_cm,ch); */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
40 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
41 /* Step 5: Extract the CRC value at any time by calling crc = cm_crc(p_cm); */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
42 /* If the CRC is a 16-bit value, it will be in the bottom 16 bits. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
43 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
44 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
45 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
46 /* Design Notes */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
47 /* ------------ */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
48 /* PORTABILITY: This package has been coded very conservatively so that */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
49 /* it will run on as many machines as possible. For example, all external */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
50 /* identifiers have been restricted to 6 characters and all internal ones to */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
51 /* 8 characters. The prefix cm (for Crc Model) is used as an attempt to avoid */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
52 /* namespace collisions. This package is endian independent. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
53 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
54 /* EFFICIENCY: This package (and its interface) is not designed for */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
55 /* speed. The purpose of this package is to act as a well-defined reference */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
56 /* model for the specification of CRC algorithms. If you want speed, cook up */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
57 /* a specific table-driven implementation as described in the document cited */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
58 /* above. This package is designed for validation only; if you have found or */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
59 /* implemented a CRC algorithm and wish to describe it as a set of parameters */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
60 /* to the Rocksoft^tm Model CRC Algorithm, your CRC algorithm implementation */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
61 /* should behave identically to this package under those parameters. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
62 /* */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
63 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
64
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
65 /* The following #ifndef encloses this entire */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
66 /* header file, rendering it indempotent. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
67 #ifndef CM_DONE
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
68 #define CM_DONE
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
69
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
70 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
71
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
72 /* The following definitions are extracted from my style header file which */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
73 /* would be cumbersome to distribute with this package. The DONE_STYLE is the */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
74 /* idempotence symbol used in my style header file. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
75
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
76 #ifndef DONE_STYLE
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
77
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
78 typedef unsigned long ulong;
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
79 typedef unsigned bool;
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
80 typedef unsigned char *p_ubyte_;
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
81
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
82 #ifndef TRUE
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
83 #define FALSE 0
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
84 #define TRUE 1
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
85 #endif
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
86
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
87 /* Change to the second definition if you don't have prototypes. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
88 #define P_(A) A
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
89 /* #define P_(A) () */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
90
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
91 /* Uncomment this definition if you don't have void. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
92 /* typedef int void; */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
93
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
94 #endif
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
95
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
96 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
97
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
98 /* CRC Model Abstract Type */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
99 /* ----------------------- */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
100 /* The following type stores the context of an executing instance of the */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
101 /* model algorithm. Most of the fields are model parameters which must be */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
102 /* set before the first initializing call to cm_ini. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
103 typedef struct {
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
104 int cm_width; /* Parameter: Width in bits [8,32]. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
105 ulong cm_poly; /* Parameter: The algorithm's polynomial. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
106 ulong cm_init; /* Parameter: Initial register value. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
107 bool cm_refin; /* Parameter: Reflect input bytes? */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
108 bool cm_refot; /* Parameter: Reflect output CRC? */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
109 ulong cm_xorot; /* Parameter: XOR this to output CRC. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
110
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
111 ulong cm_reg; /* Context: Context during execution. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
112 } cm_t;
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
113 typedef cm_t *p_cm_t;
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
114
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
115 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
116
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
117 /* Functions That Implement The Model */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
118 /* ---------------------------------- */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
119 /* The following functions animate the cm_t abstraction. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
120
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
121 void cm_ini P_((p_cm_t p_cm));
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
122 /* Initializes the argument CRC model instance. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
123 /* All parameter fields must be set before calling this. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
124
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
125 void cm_nxt P_((p_cm_t p_cm, int ch));
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
126 /* Processes a single message byte [0,255]. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
127
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
128 void cm_blk P_((p_cm_t p_cm, p_ubyte_ blk_adr, ulong blk_len));
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
129 /* Processes a block of message bytes. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
130
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
131 ulong cm_crc P_((p_cm_t p_cm));
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
132 /* Returns the CRC value for the message bytes processed so far. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
133
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
134 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
135
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
136 /* Functions For Table Calculation */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
137 /* ------------------------------- */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
138 /* The following function can be used to calculate a CRC lookup table. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
139 /* It can also be used at run-time to create or check static tables. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
140
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
141 ulong cm_tab P_((p_cm_t p_cm, int index));
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
142 /* Returns the i'th entry for the lookup table for the specified algorithm. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
143 /* The function examines the fields cm_width, cm_poly, cm_refin, and the */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
144 /* argument table index in the range [0,255] and returns the table entry in */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
145 /* the bottom cm_width bytes of the return value. */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
146
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
147 /******************************************************************************/
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
148
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
149 /* End of the header file idempotence #ifndef */
b70fae5023b4 Add missing file for self build pack tools
Jan Mulder <jlmulder@xs4all.nl>
parents:
diff changeset
150 #endif