1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677 |
- #------------------------------------------------------------------------------
- # 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
- # http://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
|