Al Aburto
                                                      'ala' on BIX
                                                      05 Aug 1989

Hello Fellow Amigeans!

AmigaBench is a program in which I intended to include 680X0 Amiga assembly
optimized versions of the more popular so-called 'benchmark' programs.

I've only made it to the Dhrystone so far, but I thought the results are
interesting enough to upload what I got now.  Besides I think someone like
'Jez' could find even more optimizations to do :-).

AmigaBench will run from Workbench or the CLI/AmigaShell.  I included a
dumb ICON, executable file, and the assembly source code.  Its all public
domain of course.

Just type '?' and hit the RETURN key and a list of the program commands
will be printed to the screen.

   (1) The 'ca' command just shows you where in memory the program was
       loaded (_main),  the addresses of some of the routines, and the
       location of the global data (_A4Ref).

   (2) The 'cs' command prints out the Cache Status if you have an 020
       or 030 CPU.

   (3) The 'wc' command allows you to Write to the Cache (if you have an
       020 or 030 CPU).  For example '51' will turn the 'Write Allocate'
       feature ON, and '50' will turn it OFF.  The various options are
       shown.

   (4) The '1' command runs what I call the 'Standard 68000 Assembly
       Version' of the Dhrystone.  The run time in TICKS and the
       Dhrystones/sec are printed out.  Also your CPU/FPU type is printed
       out.  I don't check for the 68030 and 68882 in the program (I have
       another independent program in my startup-sequence that I use). So
       if the ExecBase flags are not set right AmigaBench will not report
       the 68030 or 68882 even if they are really installed.  I'll fix this
       later.

   (5) The '2' command runs an 'Optimized 68000 Assembly Version' of the
       Dhrystone.

   (6) The '3' command runs an 'Optimized 68020 Assembly Version' of the
       Dhrystone.  This should be the fastest version on those 020 and 030
       systems.

That's it for now.

       I'm getting about 5400 Dhrystones/sec from my CSA 14.32 MHz 68020
       board with 32-bit fast static RAM.  I'm sure Ronin will be faster
       and the GVP 030 really fast at 25 MHz or more.  Post or send me
       results please.

Al Aburto
05 Aug 1989