Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
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Manic Miner & Jet Set Willy Yahoo! Group
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Message: 3770
Author: andrewbroad
Date: 03/10/2003
Subject: Re: More (flood posting extravaganza)
To put it in a wider context:
Matthew Smith wrote:
Slightly off topic - it's incredible how fast Manic Miner runs on the Spectrum with all the timing delays taken out :)
That's because LDIR (a slow Z80 instructon) will be performed by REP
STOSB ( a fast x86 instruction)It would be twice as fast on on the speccy if the LDIR was replaced by
a string of LDIs or even a string of PUSH HLs. I wish I still had the
source and a TRS-80 to assemble it on.
(actually I don't, nobody send me any emulators thank you. I've got a
nice surprise for speccy developers coming soon though)
<
To search the messages that Matthew Smith has posted on
comp.sys.sinclair:
http://groups.google.com/groups?q=author%3Amatt@the-good-
stuff.freeserve.co.uk+group%3Acomp.sys.sinclair&hl=en&lr=&ie=UTF-
8&oe=UTF-8--
Dr. Andrew Broad
http://www.geocities.com/andrewbroad/
http://www.geocities.com/andrewbroad/spectrum/
http://www.geocities.com/andrewbroad/spectrum/willy/
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