Fun with SE

[frontein1]

Bought @derFunkenstein's CatMac SE. Thank you @derFunkenstein, this is a great little machine. And of course the first thing I have to do is pull the ROM chips

Thanks to @WillJac over at CayMac for pointing me towards OneROM. What an incredible concept! Totally seamless to take the 28-pin OneROM and program it to match the pinout of the original TC531000 mask chips. @WillJac is traveling for a while, but make sure to stop by his Ko-Fi store!

Now off to Kero's Mac Mods to pickup the SWIM adapter board to complete the transition from SE to SE FDHD.

 

[pom]

One ROM - The Most Flexible Retro ROM Replacement

The most flexible retro ROM replacement - open source hardware and software.

onerom.org

 

[frontein1]

For those interested, here are the patches I made to the SE FDHD ROM to disable the slow memory test and the ROM checksum fail:

offset 0x0084 change 6704 -> 6004
offset 0x0011C change 6704 -> 6004
offset 0x26EA change 3C3C FFFF -> 4E71 4E71