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- How to install FAST.COM or SPEED.COM on your system.
-
- If you are using any of the following disk controllers,
- then the .COM files will work as they are distributed.
- Tarbell single density
- Digital Systems or Digital Microsystems (single
- density)
- Intel MDS 800 or iSBC-201
-
- If you are using any of the following disk controllers,
- then you will have to insall the appropriate patch file
- named below:
- Thinkertoys Discus double density DSCUSPAT.HEX
- Digital Systems double density DMSPATCH.HEX
-
- If you are using something else with a physical sector size
- other than 128, you will have to be a hacker and examine
- the various patch files, FAST.ASM, and the skew tables in
- your SYSGEN and BDOS. Good luck. If you manage to get a
- good speed improvement on some controller not listed above,
- please send a listing of the patch to the author:
- Robert A. Van Valzah
- 1140 Hickory Trail
- Downers Grove, IL 60515
- Thank you.
-
- If you have a single density controller other than those
- listed above, then use the follwoing procedure:
-
- You will need a stopwatch or a watch with a second hand.
-
- Pick some operation that takes a fixed amount of time, like
- PIPing a file around or assembling something. Something that
- takes about 30 to 60 seconds is good. Execute it without
- FAST, and record the execution time from when you hit return
- to when you see the 'A>' again. Now try the same thing
- with FAST (see FMAN.PRN for instructions), and record the
- execution time. If it got faster (look for 20 - 30%) then
- you are all set and can use FAST.COM and SPEED.COM as
- supplied.
-
- If it got slower or stayed the same, then you'll need
- RSPEED.COM. Load RSPEED and enter the number of sectors
- per track (most likely 26). Start with a skew factor of
- 1 and time how long it takes to read a track (the time from
- when you hit return to when you get the prompt again).
- Now increase the skew to 2 or 3 and time a track read
- again. Sooner or later, you should note a marked decrease in
- the track read time. The skew factor you are then using
- is the fastest your controller can read an entire track.
- Integrate the file SKEWnPAT.HEX into FAST.COM and SPEED.COM
- where n is the skew obtained above.
-
- How to integrate a patch file:
-
- It's simple, all you need is DDT.COM.
- DDT FAST.COM or for speed: DDT SPEED.COM
- IfooPAT.HEX
- R
- G0
- SAVE 8 FASTX.COM or for speed: SAVE 17 SPEEDX.COM
-
- And test the new file, it should be as fast as your
- system can go. Enjoy your trip!.
-