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HP-41 and video interface 82163a / 92198a
05-20-2015, 12:46 PM
Post: #21
RE: HP-41 and video interface 82163a / 92198a
Sorry JF I answered you on the wrong thread. Here it is:

Thanks JF.
I tried to use the video display in Emu41 and I have the following questions:
1/it seems that neither 32 nor 80 column are emulated, but 40.
Why ?
2/it seems that video inverse characters and cursor blinking is not emulated. why ? Is it what you mean by "partially emulated" for the escape sequences in Emu41 doc ?
3/what is the use of emulating the 82143a printer over emulating the video interface since you don't emulate the graphics ? To get a longer "paper" ? But I have not found how to control the paper length, nor how to scroll it...
4/why not emulating the 82162a printer ? Can you confirm that its new FMT instruction is dedicated to it and cannot be used with the video interface ?
5/you say in emu41 doc that the escape sequences "are not used with the hp-41, except with the paname rom". Can you confirm that you are not aware of significant applications that would make use of these features ?

Thanks in advance and regards
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RE: HP-41 and video interface 82163a / 92198a - Vincent Weber - 05-20-2015 12:46 PM

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