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HP Forum Archive 15

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HP 86A/86B/87A/87XM ROM query
Message #1 Posted by john on 16 Dec 2005, 5:43 p.m.

Hi,

Can someone clarify please which ROMs are built into which of the following machines?

86A

86B

87A - none (only one of these I have)

87XM

I recall (probably incorrectly!) that some of these have the EDISK ROM built in, not sure of any other ROMs.

Thanks, John

      
Re: HP 86A/86B/87A/87XM ROM query
Message #2 Posted by Etienne Victoria on 17 Dec 2005, 2:36 a.m.,
in response to message #1 by john

Hi John,

I can answer for mine!

Hp-86B: EDISK ROM, Mass storage ROM, Printer ROM

And that's all!!!

Cheers and thanks!

Etienne

      
Re: HP 86A/86B/87A/87XM ROM query
Message #3 Posted by Vassilis Prevelakis on 18 Dec 2005, 11:53 p.m.,
in response to message #1 by john

Hp-87A and 87XM: Mass storage ROM, Printer ROM

IMHO the only difference between the 87A and the 87XM is that the XM has more memory built in.

**vp

            
Re: HP 86A/86B/87A/87XM ROM query
Message #4 Posted by john on 19 Dec 2005, 7:47 p.m.,
in response to message #3 by Vassilis Prevelakis

Hi, Thanks for the responses. Can you clarify please about the HP86/87 Printer ROM? As you know, the 86/87 has a system ROM (address 0) plus an additional ROM (address 1) and I thought this incuded the Printer commands such as

PRINTER IS 10,132

As per your series 80 there is a separate plotter ROM (address 360 octal), but this is not pre-fitted to my HP-87A.

Regards, John

                  
Re: HP 86A/86B/87A/87XM ROM query
Message #5 Posted by Etienne Victoria on 20 Dec 2005, 2:41 a.m.,
in response to message #4 by john

Hi John,

Sorry but my answer to your post was not accurate enough.

IMHO there is no separate, identified product tagged "Printer Rom" for the 86/87 series.

Printer commands are indeed included in the 86/87 mainframe and by "PRINTER ROM", I was just referring to these included commands.

That's why we just have a separate "Plotter Rom".

Regards

Etienne

                        
Re: HP 86A/86B/87A/87XM ROM query
Message #6 Posted by john on 21 Dec 2005, 5:07 a.m.,
in response to message #5 by Etienne Victoria

Thanks,

I am updating the PRM-85 userguide for HP-86/87 users, and would like to give some accurate advice on setting the board up. It would cause a clash if the machine had one ROM built in that was the same as one enabled on the PRM-85, so I am trying to avoid this occuring.

Regards,
John


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