System Software uses 125,072 of 131,072

[aeberbach]

Depends on how you build it but you could maybe build the 64-pin ROM with a JTAG header on it, have some cheap micro for the purpose?

 

[Chopsticks]

I think its probably best to keep it software compatible with the hardware that's already available out in the wild, by just modifying the pcbs of the programmer and the SIMMS to use a different interconnect cable/socket would provide a faster development cycle. to be fair the 8mb Simms use flash rom chips that's aren't produced anymore, using modern flash usually runs at 3.3v of lower but that's easily fixed but using buss transceivers between the roms and the mac (runs 5v logic). so in short my immediate plans would just be to adapt the current hardware that's already in the wild and maybe down the track make a new 8mb Simm pcbs that can use modern chips, now Im not 100% sure but depending on in the modern flash needing different programming timings and so forth that may need a change or a rewrite of some software on the programming end.. I'm not at this stage planning to do anything commercial so a new modern flash based Simm is not high on my list of priorities right now, but I will get around to it and release berbers on without eventually. I really like open source hardware and getting pcbs made these days only cost a few dollars, making a rom some pcbs layout is pretty trivial and simple, I still don't know why people are selling stuff like that for profit to be honest