TI-59 Emulator

[prino]

(06-14-2014 06:00 AM)HrastProgrammer Wrote:  

(06-13-2014 07:27 PM)prino Wrote:  I can send the dumps of the last six.

That's fine with me.

Check your email

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Quote:1) hardcopy of PC-100 printout in PNG format would be nice

Maybe. I planned to implement output to the real Windows printer first, it will be much more useful to me. But, right now, the development of TI-59E for HP-48/49 has priority.

No problem. Will the windows printer format be faithful, i.e. support Graphics Mode?

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Quote:2) use the same formats for memory and listings and modules as Willibald, so that things can be moved from one emulator to the other

Won't gonna happen. My emulator is in no way connected to the other one and it would be a little strange that I have to change my format to support the emulator which I don't even have (and which, to my knowledge, isn't available anywhere).

I wish you and him could work together.

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Quote:3) I think Graphics mode prints too many dots

Can you elaborate more on this? I am not too familiar with graphics mode - at that time I didn't have TI-59 and much later, when I was finally able to buy one, it was without printer. Browsing through TI PPC notes I got the feeling that only 3 top rows are printed in graphics mode, and that's how I implemented it.

No, the number of dots depends on the location of hexcode 1F. The closer it's located to step 000 (with the restriction that it can only be on steps 0 mod 8), the fewer dots are printed.

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Quote:4) Allow tracing and SST of microcode and internal registers

Tracer and debugger are implemented and will be enabled in this emulator after I finish TI-59E for HP-48/49.

Without tracer it wouldn't be possible to develop the emulator - endless hours of browsing through thousands of trace lines in search for "illogicalities" etc.

The device Hynek made was helpful as well ... He was able to put some instructions starting from the address $1800, let the real TI-59 CPU execute them and catch the result on display - register A only and not all digits, but nevertheless it helped me to resolve some details like BCD correction which weren't exactly clear from the patents.

That's very nice! FWIW, I still haven't figured out how to enable tracing in the TI-95E. (Shame on me...)

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Quote:5) Probably doesn't need changing, modules can have up to 10,000 steps, and can use hexcodes

Yes, this ROM is BCD addressed and can go from 0000 to 9999, each location $00..$FF.

Which would nicely allows you to see the results of putting the CLR OP 05 '1F' RTN code for Graphics Mode at any location >= 004 and observe the number of dots printed, although only with a CROM emulator and a real TI-59/PC100 setup the exact image to be emulated could be created.

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Quote:6) maybe already there, allow saving of raw memory, *with* hexcodes (Willibald's emulator allows this

What do you mean by "allow saving of raw memory"? TI59E.RAM file already contains "raw memory".

Didn't notice the TI59E.RAM file, was running from the ZIP so it must have been deleted after closing, I've now seen it.

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Quote:And off-topic, I've not done anything about the TI-95 emulator for months ...

In regard to TI-95E ... I got TI-74 ROM some time ago and modified TI-95E to work with this ROM but it didn't boot so I gave up. But, after I fixed that MOVD IND bug a few months ago, I ported this fix to TI-74E and it started to work! I have yet to emulate TI-74 display and keyboard though. So, there is a chance to have TI-74E in the future. But, as I said - the development of TI-59E for HP-48/49 has priority at the moment

Not that interested in it. Could probably provide you with the TI-74 Pascal Module once I get a working PC Interface.