Silicon Prawn

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List of chips that have been converted (or are in the process of being) converted back to layout and/or schematic.  Where possible the data is linked below

Partial chips that have had only the mask ROM, sub-circuits, etc are not counted.  Basic logic chips are not counter either.

Also a big list here: https://project5474.org/

^Vendor ^Chip ^Layers ^Visual ^Schem ^Status ^By ^Notes |
|Acorn |TubeULA |  |  |[[https://github.com/hoglet67/TubeULA|Link  ]] |DONE |Dave Banks |From original design scan ([[http://stardot.org.uk/forums/viewtopic.php?p=93240|link]]).  Design  layout?  Are these scans available? |
|AMD |9085 |[[http://www.pastraiser.com/|Link]] |  |  |DONE |Pavel |  |
|AMI |8735 "Atari ANTIC" |  |  |  |  |ijor |[[http://atariage.com/forums/topic/172580-antic-decap-and-reverse-engineering/page-4|Link]] |
|ARM |ARM1 |Private |Private |  |DONE |Private |2015-02-08: not public, not sure if it ever will be.  If we want a public version it may need to be re-traced |
|Atari |10444D "TIA" |MIA |  |  |  |v6502 |v6502 page says its fully simulated but I can't find a link on their website |
|Atari |2600 |  |[[https://github.com/gregjames/Sim2600|Link]] |  |DONE |v6502 |[[http://blog.visual6502.org/2014/10/atari-2600-simulation.html|Blog post]] |
|Commodore |8701 |[[http://visual6502.org/images/pages/MOS_8701.html|Link]] |  |  |  |v6502 |  |
|HP |HP-35 |[[http://www.pmonta.com/calculators/hp-35/chips/index.html|Link]] |  |  |  |Peter Monta |  |
|Intel |4001 ROM |[[http://www.4004.com/|Link]] |  |[[http://www.4004.com/|Link]] |  |Lajos Kintli |Blank ROM, dynamically updated with a real content by the analyzer program |
|Intel |4002 RAM |[[http://www.4004.com/|Link]] |  |[[http://www.4004.com/|Link]] |  |Lajos Kintli |  |
|Intel |4003 shift reg |[[http://www.4004.com/|Link]] |  |[[http://www.4004.com/|Link]] |  |Lajos Kintli |  |
|Intel |4004 CPU |[[http://www.4004.com/|Link]] |  |[[http://www.4004.com/|Link]] |  |4004 team |Are the die photos published? Maybe doesn't matter since Flylogic posted set |
|MOS |6502 |? |[[http://visual6502.org/JSSim/index.html|Link]] |  |DONE |v6502 |  |
|MOS |[[:mcmaster:cbm:65ce02|65CE02 ]] |[[http://www.pastraiser.com/|Link]] |  |  |DONE |Pavel |  |
|MOS |6532 "RIOT" |  |  |  |  |v6502 |v6502 page says its traced but I can't find a link on their website |
|MOS |6581 R2 |[[http://oms.wmhost.com/misc/|Link]] |  |  |  |  |  |
|MOS |6581 R3 |[[http://oms.wmhost.com/misc/|Link]] |  |  |  |  |  |
|MOS |6581 R4 |[[http://oms.wmhost.com/misc/|Link]] |  |  |  |  |  |
|MOS |6702 |[[http://www.softwolves.com/arkiv/cbm-hackers/18/18597.html|Link]] |  |  |  |Pavel |  |
|MOS |8580 R5 |[[http://oms.wmhost.com/misc/|Link]] |  |  |  |  |  |
|Motorola |6800 |? |[[http://visual6502.org/JSSim/expert-6800.html|Link]] |  |DONE |v6502 |  |
|Motorola |[[:motorola:68000|68000]] |[[http://dspnet.fr/~galibert/m68k/|Link]] |  |  |DONE |Olivier Galibert |  |
|Nat Semi |DM7880C |[[http://www.seanriddle.com/dm7880c.html|Link]] |  |  |  |  |  |
|Nintendo |RP2A03G |[[http://www.qmtpro.com/~nes/chipimages/#rp2a03|Link]] |[[http://www.qmtpro.com/~nes/chipimages/visual2a03/|Link]] |  |DONE |Quietust |Uses lightly modified Visual 6502 ChipSim |
|Nintendo |RP2C02G |[[http://www.qmtpro.com/~nes/chipimages/#rp2c02|Link]] |[[http://www.qmtpro.com/~nes/chipimages/visual2c02/|Link]] |  |DONE |Quietust |Uses heavily modified Visual 6502 ChipSim |
|RCA |1802 |  |  |[[http://www.visual6502.org/wiki/index.php?title=RCA_1802E|Link]] |Partial? |v6502 |  |
|USSR? |KR580VM80A |  |  |[[http://zeptobars.ru/en/read/KR580VM80A-intel-i8080-verilog-reverse-engineering|Link]] |DONE |Vslav |   \\ Verilog         \\   \\ i8080 clone         \\  \\ [[http://u.zeptobars.ru/yuot/8080/|Link]]  |
|  Votrax |  [[:digshadow:votrax:sc-01-a|SC-01-A ]] |  [[http://dspnet.fr/~galibert/sc01a/|Link  ]] |  |  |DONE |Olivier Galibert |  |
|WD |[[:digshadow:wd:wd1772|WD1772]] |[[http://dspnet.fr/~galibert/wd1772/|Link]] |  |  |99% (minor errors) |Olivier Galibert |  |
|Zilog |Z80 |  |  |  |  |  |2015-02-08: sent e-mail asking if could be made public |

OKI 8052 (83C154), MAX856 schematics: https://sites.google.com/a/satre-electronics.com/www/home/reverse-engineering


====== In progress ======

^Vendor ^Chip ^Layers ^Visual ^Schem ^Status ^By ^Notes |
|Yamaha |  YM2151 |  |  |  |  |cr1901 |  |
|Yamaha |  YM2203 |  |  |  |  |Olivier Galibert |  |
|CPG |  1818vg93 |  [[http://u.zeptobars.ru/cpg/1818vg93/|Link]] |  |  |Abandoned |  |   \\ Top metal done          \\   \\ [[http://zx-pk.ru/showthread.php?t=24276&page=6|Forum post]]  |
|Konami |VRC-VII |[[http://www.qmtpro.com/~nes/chipimages/#vrc7|Link]] |  |  |Stalled |Quietust |Chip not yet delayered |
|  MOS |   \\ 6522                \\   \\  |  [[https://github.com/JohnDMcMaster/prawntools/blob/master/IC/6522/6522_polys.svg|Link]] |  |  |Abandoned |  JM  |  |
|Nintendo |RP2C33 |[[http://www.qmtpro.com/~nes/chipimages/#rp2c33|Link]] |  |  |Stalled |Quietust |Chip not yet delayered |
|Nintendo |DMG-CPU-B |  |  |  |  |gekkio |  |
|Sony |CXD8530CQ (CPU) |  |  |  |  |psxdev.ru |  |
|Sony |CXD8561CQ (GPU) |  |  |  |  |psxdev.ru |  |


Quick list
  * https://twitter.com/nukeykt/status/1639955841292939265?s=20
    * Mega Drive VDP (YM7101) progress. Only half of sprite block, video mux, VRAM ctrl and PSG are left
  * https://twitter.com/furrtek/status/1654277740370042882?s=20
    * "100th hour into tracing the Super A'Can soundchip."


[[https://sourceforge.net/p/prawntrace/code/HEAD/tree/trunk/|Repo here]]

    * SVN handles partial checkouts making large files easier to work with
    * Sourceforge isn't great, but it was the only reasonable SVN hosting I could find
    * Sourceforge hatemail will be ignored without a reasonable alternative suggested

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