Re: A89: ROM 1.05 and grayscales
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Re: A89: ROM 1.05 and grayscales
We could all just boycott rom 1.05 and have all asm support be for 1.00.
That seems to be what most people are doing anyway.
In a message dated 8/27/99 9:14:53 AM Eastern Daylight Time,
xvassor@mail.dotcom.fr writes:
> You maybe know that the grayscales no longer work on the new 1.05 ROM
> I think I've found out why : you know the greyscale handler relies on auto
> interrupt one which runs at 300 Hz. This handler switches 2 virtual screens
> in B&W, giving the impression of 4 gray levels, and then RUNS THE OLD AUTO
> INT 1 HANDLER, ie the TIOS one in most cases.
>
> The problem is that it seems that the auto int 1 handler from the new 1.05
> ROM is too slow to allow a sufficient refresh rate -> there is no
> impression of 4 grayscales..
>
> So, what ? The solution'd be that the grayscale handler no longer calls the
> old auto int 1 handler, but this will prevent the program to use functions
> such as userlib::idle_loop, as well as the APD features when it is running
> in grayscales.
>
> What should I do ?
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