summaryrefslogtreecommitdiff
path: root/inc/definitions.h
blob: a9077b2d2d0b38f47f252ddddb4ce2087e8c3e6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
#ifndef DEFINITIONS_H
#define DEFINITIONS_H
#include <cmath>

/**
 * The number of bits to specify a word in a line
 */
#define LINE_SPEC 2
/**
 * The total number of words in a line
 */
#define LINE_SIZE static_cast<int>(pow(2, 2))
/**
 * Number of bits in a word
 */
#define WORD_SPEC 32

/**
 * The number of bits to specify a memory word
 * The number of bits to specify a memory line
 * The total number of lines in memory
 */
#define MEM_WORD_SPEC 16
#define MEM_LINE_SPEC static_cast<unsigned int>(MEM_WORD_SPEC - LINE_SPEC)
#define MEM_WORDS static_cast<int>(pow(2, MEM_WORD_SPEC))
#define MEM_LINES static_cast<int>(pow(2, MEM_LINE_SPEC))

/**
 * The total number of cycles a memory access takes
 */
#define MEM_DELAY 3

/**
 * Return the N least-significant bits from integer K using a bit mask
 * @param the integer to be parsed
 * @param the number of bits to be parsed
 * @return the N least-significant bits from K
 */
#define GET_LS_BITS(k, n) ((k) & ((1 << (n)) - 1))
/**
 * Return the bits from integer K starting at N and ending at M using a bit
 * mask
 * @param the integer to be parsed
 * @param the index of the starting bit to be parsed
 * @param the index of the ending bit to be parsed
 * @return a section of bits from K
 */
#define GET_MID_BITS(k, m, n) GET_LS_BITS((k) >> (m), ((n) - (m)))

#endif /* DEFINITIONS_H_INCLUDED */