-
Notifications
You must be signed in to change notification settings - Fork 2
/
attr.c
49 lines (46 loc) · 1.49 KB
/
attr.c
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
#include <stddef.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <fcntl.h>
#include <conio.h>
#include <dos.h>
#include "config.h"
#include "debug.h"
#include "idatypes.h"
#include "lottypes.h"
#include "lotcalls.h"
#include "bundle.h"
#include "lmbcs.h"
#include "attr.h"
// These map 1-2-3's character attribute flags onto CGA character attributes.
// i.e.
//
// NOTE: I tend to write 123 attributes in octal, and CGA attributes in hex.
//
// BG FG
// 123 CGA Decoded *RGB*RGB BG FG (* is bright or blinking)
// 000 0x07 0b00000111 -> 0b00000111 WHITE / BLACK
// 001 0x30 0b00110000 -> 0b00110000 CYAN / WHITE
// 002 0x17 0b00010111 -> 0b00010111 BLUE / BLACK
// 003 0xC0 0b11000000 -> 0b11000000 *RED / WHITE
// 030 0x06 0b00000110 -> 0b00000110 BLACK / YELLOW
// ...and so on.
//
// 123 has 6 bits of attributes, 3 FG and 3 BG bits
//
// 111 111
//
// CGA has two additional bits, for bright/blinking.
//
const unsigned char lot_char_attr_table[0100] = {
0x07, 0x30, 0x17, 0xC0, 0x70, 0x30, 0x10, 0x40,
0x01, 0x32, 0x13, 0xC1, 0x71, 0x31, 0x11, 0x41,
0x02, 0x31, 0x12, 0xC2, 0x72, 0x32, 0x12, 0x42,
0x06, 0x36, 0x16, 0xC6, 0x73, 0x33, 0x13, 0x43,
0x04, 0x34, 0x14, 0xC7, 0x74, 0x34, 0x14, 0x44,
0x09, 0x3A, 0x1B, 0xC9, 0x75, 0x35, 0x15, 0x45,
0x0C, 0x3C, 0x1C, 0xCF, 0x76, 0x36, 0x16, 0x46,
0x0E, 0x3E, 0x1E, 0xCE, 0x77, 0x37, 0x17, 0x47,
};