New Non-working: Zezinho / ITA-II (Brazil, 1961/62) #2771
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The linking issue above was fixed (I forgot to mention here). In the future I may do more work on this, but right now the PR is good for merging. |
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Is this still ok following OG's recent CPU changes? |
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No, the disassembler needs to be updated.
OG.
…On Tue, Dec 26, 2017 at 1:53 PM, Robert ***@***.***> wrote:
Is this still ok following OG's recent CPU changes?
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I'll look into it. Thanks for reminding me of this! |
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sorry that I did not yet look into it. I'll get back to it at some point... |
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@felipesanches Any chance of getting back to this? :-) |
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yes, sure. But most likely after january, after I move to a new home (in a different country). Life is too busy before that. |
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thanks for the assignment, @balr0g |
| Zezinho - Instituto Tecnológico da Aeronáutica (ITA) | ||
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| Presumably the first computer designed and built in Brazil. | ||
| There are 2 variants. The first one, from 1961, is clearly not a turing-complete machine since | ||
| it only has got 4 instructions (add, subtract, data input and data output). | ||
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| The second one, from 1962, was also called ITA-II, and has got 14 instructions including things like branching. | ||
| Unfortunately I am unaware of any software for the second iteration. | ||
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| This driver only emulates the second variant, but runs a demo from the manual of the first one. | ||
| While there's now proper artwork, the only useful way to use this driver is by running it with MAME's debugger | ||
| to run the example code step-by-step. |
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How this computer (mainframe?) is supposed to run SW, tapes? Punch card? Other?
Feel free to link websites here if you have any.
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This was a very primitive computer. There's almost no info about it. It was probably programmed manually in some very rudimentary way of setting bits. We really lack more detailed docs.
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This is a wikipedia page about the computer, written in Brazilian Portuguese:
https://pt.wikipedia.org/wiki/Zezinho
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Hmm, this definitely needs some kind of planning, and a better picture resolution on reference [3] of the link attached for an artwork to happen. I also have concerns as UX standpoint around using a ROM, other than being "technically" wrong I mean.
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