RE: 9060/9090

From: Martin Hoffmann-Vetter <*martinHV_at_arcor.de*> Date: Wed, 25 Dec 2013 20:13:41 +0100 Message-ID: <004c01cf01a5$6d179f50$6800a8c0@mhv.webmade.com> · martinHV_at_arcor.de

> I'm disassembling the rom found on zimmer (the sasi part)

If i remember, Ruud has done it any time ago. So you can ask him for the
current state of his disassembly.

> I'm trying to find the memory map from the schematics
> (not so easy to read, problem of quality)
>
> Till now I found:
>
> - 6502
> - 6522 ????
> - 2716 $F800  (a part is not used)
> - 6810 ????

- 0000-007F RAM (6810)
- 0080-008F VIA (6522)
  0090-00FF VIA (mirrors)
- 0100-017F RAM (mirror for stack)
  0180-01FF VIA (mirrors)
  0200-03FF mirrors of 0000-01FF
- 0400-13FF RAM (shared)
  1400-17FF unused
- 1800-1FFF ROM (2716)
  2000-FFFF mirrors of 0000-1FFF

Martin

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