On 07/02/2011 17:21, tobias.froesc...@t-online.de wrote:
-- From memory (as both D-Day MKII and War in the East took account of the
-- difference in these ROMs), the JSU still manages 512x256 pixels, but the
-- graphics characters (founts) are smaller than on the European QL.
The QL Technical Manual says:
"This is different for countries where the television system is NTSC, which
permits the use of fewer raster lines than PAL. In QLs for such countries, the
following options are the defaults:
For monitor operations, a 50Hz 624 non-interlaced system is used; this is the
same system as is used on the English QL. The full 512x256 pixel display is
available, and the default windows and character size are the same as for the
monitor mode on an English QL.
For TV operation, a 60Hz 524-line non-interlaced system is used in which the number
of raster lines is limited to 192. In order to ease the task of software conversion,
an alternate display font is provided which allows a 6x8 character square instead of
the usual 6x10. This ensures approximately the same number of visible rows of text
on both PAL and NTSC QLs, at the cost of true descenders and reduced vertical
spacing. The default windows and graphics scaling for TV operation are different
from those of the English QL."
so it looks like only the TV modes would be different from European boxes.
Cheers,
Tobias
Yes, the Mess emulator suggests that this is the case. The vertical
timing and font is dependent on the F1/2 selection on bootup. Once in
624 50Hz mode you should be OK both in mode 4 and 8.
Cheers
Malcolm
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