Subject: Tracy's EFI asm source
From: paul lamar
Date: 6/22/2017, 10:04 PM
To: A10-Me-Earthlink

There are only one or two people on here that have
any idea what I am talking about but I will do it
anyway :-)

I printed all 265 pages. I set the type size to 8  and set the
right and left margins to .5 inches.
That cleaned it up a bunch and put the comments in the
proper columns with very few wrap around. It also
cut the number of pages.

The first 25 pages are the history of the corrected bugs and
problems and Tracy did a lot of work starting in 1999 through 2015.
My estimate of the code source size is half was ignition dwell and
advance. Do away with that and use a capacitor
discharge ignition system and it cuts the code size down
by half.

In my experience when you double the size of the code your
difficulty in maintaining it goes up by a factor of at least
4 or more.

The other factor that increases the code size is the obsolete
look up table way of doing EFI. Open loop. The answer
is closed loop.

However I have no intention of writing anything
any more in ASM. High level languages are getting too good
and processor's are getting faster.

My original road test system was a real time multitasking
OS with 22 programs in 4K of e- prom. It displayed and printed
in real time. Maybe the very  first.  I have not found any others
documented yet.

http://www.rotaryeng.net/IEEE-road-test-sys.pdf

Paul Lamar

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