Re: (no subject given)

[CUTjefbla@bconnex.net (Jeff Blakeney)]

On Fri, 19 Jun 1998 22:05:42 +1200, dempson@actrix.gen.nz (David
Empson) wrote:

>Jeff Blakeney <CUTjefbla@bconnex.net> wrote:
>
>> As far as I know, the flashing text that is generated by Applesoft's
>> FLASH command is handled completely in software in ROM.
>
>Nope.  It is handled completely in hardware.  In the Apple ][ and ][+,
>there are some discrete components involved in the flash generation
>circuitry, but in the IIe/IIc/IIgs it is all buried inside the IOU chip
>(Mega II in the case of the IIgs), possibly still using an external
>resistor and/or capacitor to determine the timing (I haven't looked at
>this for a while).

Now that I think about it, and having read the post above helped, it
makes more sense that it would be handled by hardware.

Thanks for the information.  I'll try to remember this from now on.
:)

=== I've had enough SPAM.  Cut the obvious from my address to email me. ===
         Jeff Blakeney - Dean of the Apple II University on Delphi