Re: 6502 screen too big

In message <1b259b804d.druck@xxxxxxxxxxxxxxxx>
druck <news@xxxxxxxxxxxxxxxx> wrote:

> On 24 Jun 2005 Matthew Thompson <mt@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>> Hi - i posted this on csa.acorn.games but not much response, perhaps
>> no-one knows, i can't suss it.
>>
>> In short i cannot fit in the screen display for most games on !6502em
>> on the screen of my 15" LCD SyncMaster 152V , all graphics are
>> displayed correctly but the whole screen doesn't fit in, it needs
>> shrinking somehow, i have tried reducing the sizes of the MDFs
>> supplied 640x512 and 640x500, but if i change of these values then it
>> won't work and i lose MODE7.
>
> First of all what MDF are you using? One designed for the monitor is better
> than using a CRT one which seems to work for most (larger) modes.
>
one for a Samsung 172v it was the nearest to my monitor type.

> LCDs may not be as flexible as CRTs and will fail to lock on to modes which
> are not a standard size. The 152V is 1024x768 native, and will be able to do
> the standard SVGA 800x600 and VGA 640x480, but may not be able to do 640x512.
>
> The solution is copy a larger standard mode such as 800x600 and adjust the
> border values so the actual displayed size is 640x512. Remove any other
> 640x512 modes, so the new one must be used.
>
> # Mode: Original 800 x 600 @ 60Hz
> startmode
> mode_name:800 x 600
> x_res:800
> y_res:600
> pixel_rate:40000
> h_timings:128,88,0,800,0,40
> v_timings:4,23,0,600,0,1
> sync_pol:0
> EndMode
>
> # Mode: 640x512 in 800x600 @ 60Hz
> startmode
> mode_name:640 x 512
> x_res:640
> y_res:512
> pixel_rate:40000
> h_timings:128,88,80,640,80,40
> v_timings:4,23,44,512,44,1
> sync_pol:0
> EndMode
>
>> When i run 6502em on the same monitor on Virtual Acorn then the
>> problem goes away the display is all there and in a reduced size, so
>> my inital thought of the monitor being useless is wrong so i am left
>> with two theories (1) its the iyonix and it can't do it and (2) i
>> haven't got a decent enough MDF - and i'm not much of an expert on
>> creating them.
>
> On Virtual Acorn it is most likely scaling the mode used by the emulator to
> fit the screen size used by the PC desktop, i.e. 1024x768, so there will be
> no problem on the LCD.
>
ok many thanks for the suggestions, will give them a try, i'm sure
what i want can be achieved with the right MDF.

cheers
Matthew



--

Message sent from an IYONIX www.iyonix.com
Using RISC OS 5.09 www.riscos.com

.

Relevant Pages

  • Re: 6502 screen too big
    ... > In short i cannot fit in the screen display for most games on!6502em ... First of all what MDF are you using? ... One designed for the monitor is better ...
    (comp.sys.acorn.misc)
  • Re: Laptop external monitor
    ... Peter Saffrey wrote: ... > Iiyama TFT) as my main display. ... > doesn't fit. ... > The problem is that it display perfectly on the native laptop monitor. ...
    (comp.os.linux.questions)
  • Re: Beagleboard display aspect ratio.
    ... Andrew Hodgkinson wrote: ... I'm only 99% satisfied with this MDF! ... display was squashed to the right. ... Turning the monitor off & on usually corrected this. ...
    (comp.sys.acorn.hardware)
  • Re: Do you set your camera at high resolution?
    ... printed or shrunk to fit on a monitor. ... display many other formats. ...
    (rec.photo.digital)
  • Fonts too large for scrren
    ... I have a 19" monitor, the fonts are too large to fit the screen. ... tried to correct them using display, ...
    (Debian-User)