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Diffstat (limited to 'magic/Magdir/pc98')
| -rw-r--r-- | magic/Magdir/pc98 | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/magic/Magdir/pc98 b/magic/Magdir/pc98 new file mode 100644 index 0000000..e8f6b8a --- /dev/null +++ b/magic/Magdir/pc98 @@ -0,0 +1,77 @@ +#------------------------------------------------------------------------------ +# 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 |