WTT: HP 85 Assembler ROM 00085-15007

[rprosperi]

(02-06-2016 12:50 AM)Michael Fehlhammer Wrote:  You guessed perfectly right, Paul.
Bill Kotaska programmed a custom CPLD, and I made my own SUPERROM ( ROM images are available online, you just need an EPROM programmer and a 27C512 EPROM (512 kBit = 64 kByte) that hosts 8 ROM modules ( 8 KByte each ).

My configuration looks like this:

Contact# ROM Address ROM Name
---------- ------------ --------------------
17 232 (E8 Hex) Advanced Programming
18 240 (F0 Hex) Printer/Plotter
19 177 (B1 Hex) Matrix II
20 56 (38 Hex) SYSEXT
21 231 (E7 Hex) Advanced Programming II
22 176 (B0 Hex) Matrix
23 192 (C0 Hex) Input/Output
24 207 (CF Hex) Extended Mass Storage

...

Thanks for clarifying Michael, I was wondering about many of these points which your notes make clear.

Which SYSEXT ROM are you using, Everett Kaser's or Andre Koppel's ? Both have desirable features and I've been wondering which one to add into my PRM-85 (-87).

I will contact Bill to explore creating a custom version.

For my 87XM, my ideal configuration includes:

I/O ROM
EMS ROM
Adv Prog ROM-1/2
Koppel's SYSEXT ROM
Kaser's SYSEXT ROM
Assembler ROM
FORTH ROM

If I really want to do Matrices, there are better tools, I will never Plot and Printer ROM is built-in.

I don't honestly know if the above is even possible; it's sort of a hacker's delight rather than a "normal" configuration.

I'll let you know where this goes...