karn@allegra.UUCP (Phil Karn) (04/10/84)
From Larry Kayser Re Xerox 820 boards I have been sort of tracking the 820 news and since one of these boards is due here soon I would like to determine some details so that we might make reasonably prompt use of the 820. Specific Questions -Does anyone have a complete assembler listing for the 820 BIOS? (I understand the BIOS is in two parts, disk for 6 sectors and EPROM as well) -Has anyone brought up BYE running beneath the CCP, that is lower in the memory space? -Has anyone brought up ZCPR2 on the 820? -Has anyone brought up SIGNON on the 820? -Has anyone brought up a Western Digital 1001 hard disk controller on an 820? -Has anyone done a simple modification for double density? -Has anyone added a large RAM capability to emulate a disk drive? My specific interest is to use the 820 in a gateway to replace an old 8080 system. Any help will be appreciated. Regards, Larry Kayser