HP 9845s? (And an original IBM PC.)

From: Joe <rigdonj_at_intellistar.net>
Date: Wed Mar 28 09:58:50 2001

At 12:20 AM 3/27/01 -0800, you wrote:
>> P.S. If the BASIC listing uses keywords in optional ROMs, and the working
>> machine doesn't have those ROMs, what happens when you try to print out the
>> listing?
>Good question....

    I don't know for sure but it will probably print something like "XROM
xx,yy". That's what some of the other HPs do. xx will be an id number
assigned to that ROM and yy will be the number of the routine in the ROM.
XROM of courxe means eXternal ROM. XROM xx,yy is how HP usually encodes
the call in memory. If the ROM is present then the routine name will be
printed (or executed in the run mode) otherwise it prints the XROM message
(or halts with an error and displays the XROM numbers in run mode).

   I have plenty of 9845 ROMs, I can probably loan you what you need.

Received on Wed Mar 28 2001 - 09:58:50 BST

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