Netronics Explorer/85 ROM ..create 1 single ROM filei

[RizThomas]

I want to revisit (and maybe upgrade) my Netronics Level1A board...and maybe add ROM/RAM section in future upgrade. However, I am not keen in sourcing several original eproms/rams for it. Upon seeing Tom Nesbitt’s Simple 8085, I wonder if I can create a single ROM file by concatenating the several ROM parts files available from the web. Any advice is much appreciated.

 

[Chuck(G)]

Unless you can switch the various ROM sections in and out by manipulating address lines, you're fighting one issue in that 8085 code is unlike Z80 code. There are no PC-relative addressing modes. So everything has to execute at the address it was configured for. Your other option would be to create a "super ROM" with all code reassembled to be at the actual address of the ROM space.