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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
#------------------------------------------------------------------------------
# pc98: file(1) magic for the MSX Home Computer
# v1.0
# Fabio R. Schmidlin <sd-snatcher@users.sourceforge.net>
# Maki-chan v1 Graphic format
# The image resolution should be X=(44.L - 40.L) and Y=(46.L - 42.L), but I couldn't find a way to do so
# http://www.jisyo.com/viewer/faq/maki_tech.htm
0 string/b MAKI01 Maki-chan v1.
>6 ubyte|0x20 x \b%c image
>8 ubelong >0x40404040 \b, system ID:
>>8 byte x %c
>>9 byte x \b%c
>>10 byte x \b%c
>>11 byte x \b%c
>44 ubeshort x \b, %dx
>46 ubeshort x \b%d
>38 ubeshort&2 0 \b, 16 paletted RGB colors
>38 ubeshort&2 2 \b, 8 fixed RGB colors
>38 ubeshort&1 1 \b, 2:1 dot aspect ratio
# Maki-chan v2 Graphic format
# http://www.jisyo.com/viewer/faq/mag_tech.htm
# https://mooncore.eu/bunny/txt/makichan.htm
# http://metanest.jp/mag/mag.xhtml
0 string/b MAKI02\ \ Maki-chan v2 image,
>8 byte x system ID: %c
>9 byte x \b%c
>10 byte x \b%c
>11 byte x \b%c,
>13 search/0x200 \x1A
#Maki-chan video modes are a bit messy and seems to have been expanded over the years without too much planing:
#1) When offset1(ubeshort) !=0x0344:
# 1.1) And offset3(ubyte).b7=0:
# - b0=pixel aspect ratio: 1=2:1 (note: this ignores that the machine's 1:1 pixel aspect ratio isn't really 1:1)
# - b1=number of colors: 0=16 colors, 1=8 colors
# - b2=Palette or fixed colors flag (called "analog" and "digital" in the doc): 0=Paletted, 1=Fixed colors encoded directly in the pixel data
# 1.2) And offset3(ubyte).B7=1:
# - b0=256 paletted colors
# - b1=256 fixed colors using the MSX SCR8 palette
#2) When offset1(ubeshort) =0x0344:
# - 256x212 image with 19268 YJK colors. The usual resolution and color information fields from the file must be ignored
>>&1 ubeshort 0x0344 256x212, 19268 fixed YJK colors
>>&1 ubeshort !0x0344
>>>&5 uleshort+1 x %dx
>>>&7 uleshort+1 x \b%d,
>>>&0 ubyte&0x86 0x00 16 paletted RGB colors
>>>&0 ubyte&0x86 0x02 8 paletted RGB colors
>>>&0 ubyte&0x86 0x04 16 fixed RGB colors
>>>&0 ubyte&0x86 0x06 8 fixed RGB colors
>>>&0 ubyte&0x81 0x80 256 paletted RGB colors
>>>&0 ubyte&0x81 0x81 256 fixed MSX-SCR8 colors
>>>&0 ubyte&0x01 1 \b, 2:1 dot aspect ratio
# XLD4 (Q4) picture
11 string/b MAJYO XLD4(Q4) picture
# Yanagisawa Pi picture
#0 string Pi\x1A\0 Yanagisawa Pi picture
#>3 search/0x200 \x04
0 string Pi
>2 search/0x200 \x1A
>>&0 ubyte 0
>>>&3 ubyte 4 Yanagisawa Pi 16 color picture,
>>>&4 byte x system ID: %c
>>>&5 byte x \b%c
>>>&6 byte x \b%c
>>>&7 byte x \b%c,
>>>&10 ubeshort x %dx
>>>&12 ubeshort x \b%d
>>>&3 ubyte 8 Yanagisawa Pi 256 color picture
>>>&4 byte x system ID: %c
>>>&5 byte x \b%c
>>>&6 byte x \b%c
>>>&7 byte x \b%c,
>>>&10 ubeshort x %dx
>>>&12 ubeshort x \b%d
|
