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The built-in screen modes in Matrix Brandy are based on those from RISC OS,
the first 8 themselves based on the BBC Micro.
On RISC OS, MODEs 0-63 are available depending on your monitor configuration
and RISC OS version. MODEs 64 and up are not available. On the Risc PC and
later, user-defined modes with the extended MODE command are available, but
handled by RISC OS (and not through MODE 126). *NewMode is not implemented.
Mode Text resolution Graphics resolution Colours Pixel size Logical res
0 80x32 640x256 2 1x2 1280x1024
1 40x32 320x256 4 2x2 1280x1024
2 20x32 160x256 16 4x2 1280x1024
3 80x25 Text only 2 1x2 Text only
4 40x32 320x256 2 2x2 1280x1024
5 20x32 160x256 4 4x2 1280x1024
6 40x25 Text only 2 2x2 Text only
7 40x25 (Teletext mode, this works differently to other modes)
8 80x32 640x256 4 1x2 1280x1024
9 40x32 320x256 16 2x2 1280x1024
10 20x32 160x256 256 4x2 1280x1024
11 80x25 640x250 4 1x2 1280x1000
12 80x32 640x256 16 1x2 1280x1024
13 40x32 320x256 256 2x2 1280x1024
14 80x25 640x250 16 1x2 1280x1000
15 80x32 640x256 256 1x2 1280x1024
16 132x32 1056x256 16 1x2 2112x1024
17 132x25 1056x250 16 1x2 2112x1000
18 80x64 640x512 2 1x1 1280x1024
19 80x64 640x512 4 1x1 1280x1024
20 80x64 640x512 16 1x1 1280x1024
21 80x64 640x512 256 1x1 1280x1024
22 96x36 768x288 16 1x2 768x576
23 144x112 1152x896 2 1x1 2304x1792
24 132x32 1056x256 256 1x2 2112x1024
25 80x60 640x480 2 1x1 1280x960
26 80x60 640x480 4 1x1 1280x960
27 80x60 640x480 16 1x1 1280x960
28 80x60 640x480 256 1x1 1280x960
29 100x75 800x600 2 1x1 1600x1200
30 100x75 800x600 4 1x1 1600x1200
31 100x75 800x600 16 1x1 1600x1200
32 100x75 800x600 256 1x1 1600x1200
33 96x36 768x288 2 1x2 1536x1152
34 96x36 768x288 4 1x2 1536x1152
35 96x36 768x288 16 1x2 1536x1152
36 96x36 768x288 256 1x2 1536x1152
37 112x44 896x352 2 1x2 1792x1408
38 112x44 896x352 4 1x2 1792x1408
39 112x44 896x352 16 1x2 1792x1408
40 112x44 896x352 256 1x2 1792x1408
41 80x44 640x352 2 1x2 1280x1408
42 80x44 640x352 4 1x2 1280x1408
43 80x44 640x352 16 1x2 1280x1408
44 80x25 640x200 2 1x2 1280x800
45 80x25 640x200 4 1x2 1280x800
46 80x25 640x200 16 1x2 1280x800
47 45x60 360x480 256 2x1 1280x800
48 40x60 320x480 16 2x1 1280x960
49 40x60 320x480 256 2x1 1280x960
50 40x30 320x240 2 2x2 1280x960
51 40x30 320x240 4 2x2 1280x960
52 40x30 320x240 16 2x2 1280x960
53 40x30 320x240 256 2x2 1280x960
54-63 reserved for future expansion within RISC OS.
Modes from 64 are only available on SDL builds, and can be redefined with
*NewMode, these definitions are local to Matrix Brandy, and may be changed
in the future. As such they are not available on RISC OS, however the
new-style MODE commands are available and can be used to replicate these.
Modes 64-68 use the same coordinate system as Tektronix graphical terminals
64 128x97 1024x780 2 1x1 2048x1560
65 128x97 1024x780 4 1x1 2048x1560
66 128x97 1024x780 16 1x1 2048x1560
67 128x97 1024x780 256 1x1 2048x1560
68 128x97 1024x780 16777216 1x1 2048x1560
Modes 69-93 are widescreen modes, possibly useful for full-screen use.
69 128x72 1024x576 2 1x1 2048x1152
70 128x72 1024x576 4 1x1 2048x1152
71 128x72 1024x576 16 1x1 2048x1152
72 128x72 1024x576 256 1x1 2048x1152
73 128x72 1024x576 16777216 1x1 2048x1152
74 170x48 1360x384 2 1x2 2720x1536
75 170x48 1360x384 4 1x2 2720x1536
76 170x48 1360x384 16 1x2 2720x1536
77 170x48 1360x384 256 1x2 2720x1536
78 170x48 1360x384 16777216 1x2 2720x1536
79 170x96 1360x768 2 1x1 2720x1536
80 170x96 1360x768 4 1x1 2720x1536
81 170x96 1360x768 16 1x1 2720x1536
82 170x96 1360x768 256 1x1 2720x1536
83 170x96 1360x768 16777216 1x1 2720x1536
84 240x67 1920x540 2 1x2 3840x2160
85 240x67 1920x540 4 1x2 3840x2160
86 240x67 1920x540 16 1x2 3840x2160
87 240x67 1920x540 256 1x2 3840x2160
88 240x67 1920x540 16777216 1x2 3840x2160
89 240x135 1920x1080 2 1x1 3840x2160
90 240x135 1920x1080 4 1x1 3840x2160
91 240x135 1920x1080 16 1x1 3840x2160
92 240x135 1920x1080 256 1x1 3840x2160
93 240x135 1920x1080 16777216 1x1 3840x2160
Note 1: MODEs 22 and 35 differ in that MODE 22 uses a non-standard pixel
addressing with a 768x288 display on a 768x576 pixel addressing range,
while MODE 35 uses the more standard doubling of 1536x1152.
Note 2: COLOUR/GCOL numbers and TINT in 24-bit colour modes give the same
colours as 256-colour modes. Using the newer form of COLOUR r,g,b or
COLOUR OF r,g,b ON r,g,b (and likewise for GCOL) provide access to the
full range of 16,777,216 colours.
Custom screen modes can be used, via *NewMode, VDU23,22 or the newer forms
of the MODE command.
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