Bit of CP/M trivia needed

Steve Thatcher melamy at
Sat Aug 27 17:13:27 CDT 2005

what machine and/or controller was this that had no ROM at all? I 
never have dealt with any system that at least didn't have some type 
of startup code somewhere other than a disk drive. DMA would need to 
be setup unless it was hardwired. The original Intel Intellec-8 
required that you enter a program jump into memory that pointed to 
the program monitor. Intel didn't call it a BIOS though.

>  My understanding was that the first ones had no ROM
>and used a DMA controller that loaded bootstrapping
>code from the first sector on reset. I have such a
>controller on my machine. All RAM, no ROMs.

More information about the cctalk mailing list