Re: [stella] horizontal timing issues

Subject: Re: [stella] horizontal timing issues
From: gentlben@xxxxxxxxxxxx
Date: Mon, 05 Jul 1999 15:27:57 -0700
> Man, your posts are pretty hard to read. If you want us to help you,
> you should at least make sure, that we can understand the question. ;-)

im sorry if my posts are all screwed up in
formatting, but netscape has a funny way of
formatting messages :P...if its the questions
themselves that confuse u, i apologize also,
its just that im not nearly as well learned as
u all are especially when it comes to 2600
specific items :) i decided to give my binary
file a little "overhaul" and build a new one
out of it and right now im trying to do things
like display players, missiles, ball, that sort
of thing :P

> You can write to the TIA registers at any time. It is just that the
> 6507 instructions take several cycles to finish execution. The changes
> to the TIA registers take effect when the write instuction to it has
> finished execution.

it seems you were right about the horizontal offset you
mentioned some time ago...i just went over some posts in the
stella archives...:P oh well...i dont think i will really be
sure of anything until i try it

> You can write to HMxx before you write to it's corresponding RESxx
> register, but you have to do the RESPxx before you apply the fine
> movement from the HMxx register with a WSYNC/HMOVE.

ah, so what you're really trying to tell me
is that a reset can be done either before or
after the horizontal movement registers that
control fine movement, but it MUST come before
an HMOVE strobe? i see...

heres another question for all of you to bite on...
do you think it would be possible to create even a
simple music program that could compose simple
songs?  such a program could have an extra feature
for would-be programmers showing waveform and
frequency divide...and if it could be written, it
would be great for the Supercharger...your thoughts?

dee


--
Archives (includes files) at http://www.biglist.com/lists/stella/archives/
Unsub & more at http://www.biglist.com/lists/stella/

Current Thread