WANTED: FORTH/Assembler ROM for 71b

[rprosperi]

(01-28-2018 11:06 PM)Mark Hardman Wrote:  Dave,

You mentioned in the Classifieds that you would be willing to burn CMT EPROMs. Is the CMT71-32E 32K EPROM one of the modules that can be programmed? I have one of these burned with the Math Pac. I already have several HP Math Pacs. Would it be possible to reprogram this EPROM as a JPC module?

Sorry to hijack the thread.

Mark Hardman

Yes, this can be done. Excellent choice too.

After the JPCF05 LEX file, there is about 6KB left, so you can include always-useful LEX files such as ROMCOPY, HLPLEX, DISLEX, etc. The JPC ROM also includes a poll-handler that runs a BASIC program called ML (for MEM LOST) upon initial startup after you experience a MEM LOST; this program is run automatically and is used to set various things needed after a MEM LOST. JFG's file package (and the JPC ROM manual) include a sample one, but you don't need to use that as-is, you really should tailor it to your own 71B personality preferences.

For example, this is mine:

Code:

100 SUB ML @ DIM D$
110 FINPUT D$,"Time : Hr:Mn:Sc","7P2UP2UP2UP",A
120 SETTIME D$[1,2]&":"&D$[3,4]&":"&D$[5]
130 FINPUT D$,"Date : Mo/Dy/Yr","7P2UP2UP2UP",A
140 SETDATE D$[5]&"/"&D$[1,2]&"/"&D$[3,4]
150 DELAY 0,0
160 USER ON
170 STACK 15
180 WIDTH 80
190 PWIDTH INF
200 DEF KEY "#46","RUN ";
210 END SUB

Since I have programs for building each of my 71B machine configurations, this is just the generic machine setup stuff to make it 'act' the way I expect my 71B to act (after a MEM LOST, a 71B can feel really broken until some of these things are set).

BTW, the obscure looking FINPUT commands are part of the JPC ROM, which is why they may not look familiar.