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Re: Speed check
- Subject: Re: Speed check
- From: mjmahon@aol.com (Michael J. Mahon)
- Date: 20 Aug 2003 07:23:17 GMT
- Newsgroups: comp.sys.apple2
- Organization: AOL http://www.aol.com
- References: <6LE0b.77661$tQ2.2073438@news1.telusplanet.net>
- Xref: archiver1.google.com comp.sys.apple2:34163
Wayne Stewart wrote:
>I pulled the 16 mhz oscillator out of my IIc+ and installed a socket
>and tried some oscillators. I was able to boot up with a 40 mhz
>oscillator but not a 42 mhz. So far no problems with either the
>built-in drive or an external 5.25" drive.
>
>Does anyone have any utility that might clock a IIc+?
>
>I'll see about trying some faster SRAM and maybe a faster processor
>if I have one
Far out!! I been wondering how far overclocking could take a IIc+!
A simple speed test is to write an Applesoft program to do a
FOR-NEXT delay loop, then beep, then loop back to the delay.
The rate of beeping is easily timed and gives a useful speed
ratio. (The beep will probably run at normal speed, but the
majority of the time is spent in the FOR-NEXT, which should
run at full speed.)
Let us know what you find!
-michael
Check out amazing quality 8-bit Apple sound on my
Home page: http://members.aol.com/MJMahon/