On Wed, 1 Mar 2017, smf wrote: > > > On 28/02/2017 15:06, geneb wrote: >> >> Patches that were done were applied to the BIOS, not the ROM. Keep in mind >> that under CP/M, the BIOS is loaded off of disk and isn't ROM-resident. >> CP/M is kind of a stack. The BDOS, the BIOS, and the CCP. The BDOS is the >> same for every CP/M system. The BIOS is modified to match the hardware >> that CP/M is running on, and the CCP is basically equivalent to COMMAND.COM >> in DOS - it's transient. > > The phone call was about the boot ROM for the Z80, that worked out whether to > go into C64 mode or C128 mode. Before that call the 6502 started first & it > tried to handle the mode switch, but that caused a problem with the magic > voice cartridge. > Must not have been the story I was thinking of then. > It had nothing to do with CPM. It's CP/M. :) g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_! Message was sent through the cbm-hackers mailing listReceived on 2017-03-01 14:00:02
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