home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Datafile PD-CD 5
/
DATAFILE_PDCD5.iso
/
utilities
/
a
/
armsi
/
!ArmSI
/
!Help
< prev
next >
Wrap
Text File
|
1993-09-10
|
13KB
|
287 lines
| > !Help
|
| Title ArmSI application - Speed Indexer for Acorn RISC machines
| Authors J.Abbott & Nick Smith
| Version 3.46H (07-Sep-93)
| Status Public Domain, no distribution restrictions
Welcome to the all-new !ArmSI application - it was developed from !SI
v3.12 (written by 'J.Abbott') by Nick Smith to give a range of
interesting machine speed indexes for Acorn RISC machines.
Versions postfixed by H (for Hack 8-) are modified by Nick Smith because
!SI 3.12 was pretty poorly written I felt, and needed some work done
in a few places (user interface, RAM speed checks, etc) Once I started
on fixing the bugs, I began to think of lots of things to add to the
program ...
Thanks go to Owen Smith for ideas, some tech information & helping test
out some of the stranger hardware configurations. Thanks also to some
wonderful beta-testers; Paul Fidler & Holger Klingspohr.
I would be most interested in talking to Mr Abbott about !SI, but he
didn't bother to put his address in the original documentation - so I
have no way of getting in contact with him !
Note that to run the Dhrystones/Flops20 test you need ;
- Version of the SharedCLibrary v3.75 or greater
- The disc with !ArmSI in the drive (because it is a separate command)
Note that to run any FP computations you need ;
- Some version of the FPEmulator loaded
If you load some old SI file into !ArmSI, then many of the fields in
the main window will not be available because that information wasn't
saved by !SI. Also, if you load some SI/ArmSI file from another
machine, then remember to use 'Re-calculate' before playing around
with any improvements. Versions later than 3.43 have an Acorn-allocated
filetype of &3f2, and so to load old (&003) files, you have to drag
the files to a loaded copy of !ArmSI.
Some example SI files are including for your interest - ranging from
the lowest 1MB A310 (5900 Dhrystones) all the way up to my 'turbo'
A5000 (over 25000 Dhrystones 8-) ... Note my A5000 can run at 16.6MHz
RAM (*big* speed increase) by using a 4MB upgrade card of 60ns DRAM
from SimTec electronics.
Users of old !SI may notice that the option to turn DRAM refresh on
or off has gone. In fact turning off DRAM is extremely dangerous -
and on some types of system/RAM chips can completely corrupt your
memory. So I decided to take the safe path, and remove all the code
which turns DRAM refresh on or off - keep it set to the RISC OS
default - you know it makes sense !
*** Known bugs
If you can help me track these down (or even give me reproducable
circumstances) then I would be most grateful.
- Sometimes the FPEmulator doesn't like being RMFaster'd, although
I cannot duplicate the problem on my machine.
- Sometimes stupid FP results are given - again I can't reproduce
the problem ... So if you see an EXP of 0.72 and a SIN of 11.12
then it is probably messed up !
*** Contacts
Please send me any bugreports, comments, ideas for new features, etc.
I can be contacted at the following address, at least until Jul '94 ;
Nick Smith
Churchill College
Cambridge
CB3 0DS nas20@cus.cam.ac.uk (JANET/Internet email)
*** Distribution
This software is 'Public Domain'. You may copy and distribute it
without restriction - include it on magazine discs, with commercial
products (eg, ARM3/FPA upgrades), etc, etc. If you do include it with
commercial hardware, I'd really like to know about it too.
*** Revision history
Modifications to v3.20H (05-Nov-92)
- Removed all line number references in BASIC code (first job in any
BASIC hack!)
- Made iconbar menu appear in correct place!
- Misc mods to templates
- Did new code to read RAM speed - old stuff was rubbish I think (at
least it never returned anything useful for >8MHz memory)
- Possibly removed RO2.xx compatibility - oh well 8-)
- Changed ROM speed reading code based on speed of memory speed (ie,
memory system clock)
Modifications to v3.21H (07-Nov-92)
- Restructured application - moved Templates & Code to a 'Resources'
directory.
- Added 'Dhrystone' benchmark to application - uses standard Dhrystone
version 2.1 (May 25, 1988) with no optimisations
Full source is included, as is a Makefile for recompilation with
different settings
- Generally did lots of code tidying & documentation
- Re-did main 'System Information' window, renumbering icons as I went
to tidy up redraw (argh - icons should be numbered from 0 at top -> )
- Added 'Available ROM' (shows 5th column ROM info too)
- Added display of ROM speed (2,3,4 ticks, or Page mode access)
- Added 'IOEB chip set information'
- Added FPA coprocessor recognition
- Added 'Additional details:' section ;
RISC OS version
Video screen mode, resolution, colours & refresh rate
Unique machine ID reading
Floating point identification (Old FPE, New FPE, FPPC, FPA chip)
Dhrystone results (microseconds/loop, dhrystones/sec)
- Did all this silly documentation (!)
- Now wasn't all this more useful than going to a 'Use of the IBM 3084
mainframe' lecture ?? 8-)
Modifications to v3.22H (08-Nov-92)
- Generally wrote the support code for all the above features which
didn't get done yesterday ...
- Integrated the Dhrystone index into the application (or at least it
gets run by the main application)
- Added recognition of FPPC (Old Acorn FP card)
- Renumbered some more icons to fix icon delete/recreate problems
- Added snazzy 'machine identification' code which guesses your
machine type
- Recalibrated ARM instruction indexes based on 1.000 being an old
1MB A310 (MEMC1, 8MHz ARM2), rather than the previous 'perfect' ARM2
whatever that might have been !
Modifications to v3.23H (09-Nov-92)
- Fixed so that prompts for disc with Dhrystone command to be
inserted (*before* video DMA turned off!)
- Reduced no. of Dhrystone loops so not so slow on ARM2
- Recalibrates old SI files when loaded so that 1.00 = 310, 8MHz ARM2
- Removed all the 'MOVNV R0,R0' instructions in app, now MOV R0, R0
- Added ARM250 processor recognition (for A3010/3020/4000/etc)
- Reads MEMC type from zero page in SVC mode (in case users/OS have
zero page protected)
- Open main window on a load operation of SI file
- Improved error messages & error handling (what sort of idiot defines
an error block of 64 bytes ?? sigh)
- Closes menu on saving via key press/mouse click
- Extended window widths to allow for the higher speeds that I am
getting ... Almost certainly not enough for the FPA when it arrives!
Modifications to v3.24H (10-Nov-92)
- Renamed to !ArmSI because I felt it was a more identifiable name,
and it also distinguishes the program from the original !SI app.
- Identifies ARM2as/ARM61 processors (cannot tell the difference)
- Identifies ARM600/610 or ARM600 processors
- Changed ROM speed terminology - should be 'n-cycles'
- Sent out to a few people for a little bit of testing ...
- New Sprites, and a !Sprites22 file.
- Now identifies A500 (A310 protoype), with a VIDC1 chip
Modifications to v3.25H (11-Nov-92)
- Improved !Sprites22, but they still aren't very good !
- Added some more improvements ;
*RMFaster BASIC on/off
*RMFaster FPEmulator on/off
ARM3 cache on/off
Yes - you can *RMFaster BASIC in the middle of a BASIC program
(well I was impressed!) Note that the FPEmulator can only be
RMFaster'd if you have it in ROM (RO3.xx owners)
- Made sure that all zero page reads are done from SVC mode
- Because of the new facilities, 3.25 cannot read the SI files
created with 3.20->3.24 (although it can read 1.xx, 2.xx and
pre 3.20), because it seemed too much effort - there hasn't
been a public release yet, and there is a new file format every
day !
- ADJUST-click on icon bar open FP info window
Modifications to v3.26H (13-Nov-92)
- Now shouldn't moan on startup if you have no FPEmulator module
present.
- Strange problem with DRAM refresh changing at random points -
think it fixed now. Probably due to Mr.Abbott's enthusiastic
use o