dynabook SATELLITE C50-H, Maintenance Manual

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NO.
CONT.ON 42 PAGE NO.41
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z= S
1
^t
1
*S
2
^t
2
*….*S
n
^t
n
where S
1
,S
2
,…,S
n
are prime numbers with S
1
<S
2
<….<S
n
and 0 < t
1
, t
2
, … t
n
Next, based on the factorization, calculate all factors of “z” and choose the one that is the nearest to X/40.
The one will be defined as “Z”.
Additionally as commented in the logic above, it might be better to consider the case that z=GCM(X, Y) is a prime number.
Another Important Note: If a new PC is added as a target, check its screen resolution out.
Usually, the value “Z” derived from z = GCM(X, Y) is large enough.
However, if “z” itself is too small, we have no choice but to use “z” as “Z”.
For example, when the screen resolution is 1366 x 768, GCM (1366, 786) =2 that is too small.
If you draw the vertical and horizontal lines with the very small interval, no other graphics components can be
seen.
As of 2014/September, after checking the target PC’s screen resolutions, it was found that this happens only
when the screen resolution is 1366 x 768.
Therefore, the work around, in case of the resolution 1366x768, WPETD treats it as 1280x768 where GCM
(1280, 768) = 256 that is large enough, has been taken.
Regarding the target PCs, refer “1. Outline”.
If a new PC is added in the target PCs, you must check its screen resolution for this thing.
# Drawing procedure
(1) Fill the full screen with black “RGB (0, 0, 0)”color.
(2) Draw texts as follows:
Draw 48 1byte-chracters a line as follows:
Font = Courier, standard (non-bold, non-italic), Fixed pitch, Width = 9, Height = 16,
Character color = White RGB (255, 255, 255), Background color = Black RGB (0, 0, 0)
- 1st line: Position (X/2-9*24, 4*Z), 48 characters
0x20 (Space), 0x21(‘!’), … up to 0x4F (‘O’)
- 2nd line: Position (X/2-9*24, 4*Z + 15), 48 characters
0x4F (‘O’), 0x50 (‘P’), … up to 0x7E (‘~’);
- 3rd line: Position (X/2-9*24, 4*Z + 30), 48 characters
0x7F, 0x7E (‘~’), … down to 0x50 (‘P’)
- 4th line: Position (X/2-9*24, 4*Z + 45), 48 characters
0x50 (‘P’), 0x4F (‘O’), … down to 0x21(‘!’)
- 5th line: Position (X/2-9*24, 4*Z + 60), 48 characters
0x20 (Space), 0x21(‘!’), … up to 0x4F (‘O’)