New HP71B emulation (go71b)


New version on google play:
- native core emulation (go up to x40 on a dual 1GHz device)
- JPC rom now integrated
- some bugs corrected (incompatibilities with too much modules on port 5)

Save (export) your data before upgrading, MEMORY LOST can happen.
Unplug integrated modules before upgrading, plug them after.

Happy basic (or forth) programming


P.S. My home internet access is not repaired, so responses can be delayed, sorry.

P.P.S. the native emulation is not heavilly optimized, some progress can still be made

Edited: 25 June 2012, 7:33 a.m.


That sounds good, will try as soon as it becomes available in the Play Store.


Me too


Now I'm totally confused: having plugged in MATH and JPC (both green!), I still get no JPC ROM commands and VER$ doesn't show it, only MATH.

What am I doing wrong?

EDIT: after I plugged in HP-IL and FORTH ROM additionally, it works!

When HP-IL is plugged out again, JPC is also gone, although still green and plugged in...

Edited: 25 June 2012, 11:03 a.m.


first remove ALL pluged modules then do a 'clean' data from android application menu, when you restart go71b you should have a memory lost. Turn OFF, then use config to plug ALL modules (MATH, HPIL, FORTH and JPC). Turn ON and all should be ok (did you have version 1.2.1 ?) VER$ should display all modules, otherwise I don't understand what happens (you should have MATH, JPC and HPIL in port 4, and FORTH in port 5, 2 modules)

PS you are right I also got the behavior you describe ... further checking is needed ...

PPS I just put a new version ... do the same as indicated (remove all module then clean) then test you modules configuration, it should be ok now : I use port 3, 4 and 5 for rom modules

Edited: 25 June 2012, 11:41 a.m.


The update seems to work nicely!



Hi Oliver, thanks, your updated "go71b" works really well.
Now for what may be a trivial question for some, what is the easiest method for transferring programs from EMU71 to go71b, without having to re-type them?
Thanks and best regards


'print NAME' the program on a txt file on emu71. Put the text file in 'go71b/prints', 'import' from 'config/prints'. Use 'edit NAME' on emulator, then use 'paste' from 'config/prints', wait a bit and voilĂ  your program is retyped ...


You can try with lif text file with raws and 'TRANSFORM' keyword on emulator, but I think there is a bug in that part.


Thanks Oliver. I will certainly try this. I am really enjoying the emulator.
Best Regards


Any plans for an iPhone version? :)

Edited: 26 June 2012, 10:26 a.m.

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