UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Gemini 80-Bus System

JohnBHanson · 3rd May 2020, 7:17 pm

Just for testing I downloaded it and it works fine under xbeaver with the following configuration

cpuclock
board 0xfe gm813_mmu
board 0xb0 gm832 Gemini_557 green keyboard gemini
board 0xe0 gm849_floppy -geometry 80.2.10.0.512 & ~/beaver/disks/gm557_master.img

binload 0xf000 ~/beaver/rpm-v2p1.rom
byte 0f0a8 21 00 f0 #Patch top of ram for RPM

NB - seems to need a GM849 disk controller.
PS - the command "DIR" with no arguments works fine on the simulator - it lists all files.

3rd May 2020, 7:17 pm	#363
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 661	Re: Gemini 80-Bus System Just for testing I downloaded it and it works fine under xbeaver with the following configuration cpuclock board 0xfe gm813_mmu board 0xb0 gm832 Gemini_557 green keyboard gemini board 0xe0 gm849_floppy -geometry 80.2.10.0.512 & ~/beaver/disks/gm557_master.img binload 0xf000 ~/beaver/rpm-v2p1.rom byte 0f0a8 21 00 f0 #Patch top of ram for RPM NB - seems to need a GM849 disk controller. PS - the command "DIR" with no arguments works fine on the simulator - it lists all files.