[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Q: Timing: How many clock-cycles to print one char on screen?

Subject: Re: Q: Timing: How many clock-cycles to print one char on screen?
From: dempson@actrix.gen.nz (David Empson)
Date: Wed, 4 Oct 2000 01:21:44 +1300
Newsgroups: comp.sys.apple2
Organization: Empsoft
References: <Pine.A41.4.21.0010020946500.66714-100000@asterix.uni-muenster.de> <1ehwll4.s6wwzpro10krN%dempson@actrix.gen.nz> <39d905b8$1@news.uow.edu.au>
User-agent: MacSOUP/2.4.2
Xref: supernews.google.com comp.sys.apple2:2075

David Wilson <david@uow.edu.au> wrote:

> dempson@actrix.gen.nz (David Empson) writes:
> >The PAL version of the Apple IIe and IIc run at a slightly slower master
> >clock frequency: 14.25 MHz.  I don't think it needs the stretched cycle.
> 
> It does however have the stretched cycle. See Jim Sather's Understanding
> the Apple //e page 3-5. The only timing difference is the 0.48% increase
> in the duration of signals on a PAL //e (and the increase from 262 to 312
> horizontal scans in a 60/50Hz vertical scan).

Thanks for the clarification.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand

References:
- Q: Timing: How many clock-cycles to print one char on screen?
  - From: Holger Picker <pickerh@uni-muenster.de>
- Re: Q: Timing: How many clock-cycles to print one char on screen?
  - From: dempson@actrix.gen.nz (David Empson)
- Re: Q: Timing: How many clock-cycles to print one char on screen?
  - From: david@uow.edu.au (David Wilson)

Prev by Date: Re: A2Central.com is licensed to distribute Apple software
Next by Date: Re: Q: Timing: How many clock-cycles to print one char on screen?
Previous by thread: Re: Q: Timing: How many clock-cycles to print one char on screen?
Next by thread: Re: Q: Timing: How many clock-cycles to print one char on screen?
Index(es):
- Date
- Thread