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37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
Acorn System 1 - Port to MiST
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ToDo: Mouse and Keyboard
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This is a port of Acorn System 1 inspired by the work of David Banks.
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This version has a huge 512 bytes of rom
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and a massive 1024 bytes of memory. The display is the latest 9 digit (only 8 used )7 segment plus dp.
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The keyboard is 25 soft touch positive click switches.
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My first computer was a system 1. I could spend hours entering one machine
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code instruction at a time, then more hours debugging my mistakes.
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Then switch off and it was all lost.
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Ahh those were the days.
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I would think that this port will be of limited interest but I could not find any other
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port of this machine.
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The mouse is the yellow dot on the screen. Left click to press switch.
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At present this is a basic system 1 there are no bells or whistles.
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No input (tape) or output as yet.
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You will have to forgive the vga output, all hand drawn using several hundred 'if' statements.
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The quickest way to test is after load, press the rst key. Press 'm' key.
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Enter '0015' and press 'm' again.
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The address 0015 is the 3rd character from the right. The value shouls read 80.
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type any hex character to change the value and the character will change.
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Dave Wood (oldgit) |