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

john_newcombe · 16th May 2019, 4:10 pm

I have just successfully formatted a floppy disk with the format.com program you sent. I created an RP/M hex file and pasted it into the terminal to load at 0100. It ran and successfully formatted my double sided 80 track drive although it only formatted to 35 tracks. My drive has a 40/80 track switch, I am guessing that at 40 track it will be double stepping.

I guess this is progress, still no CP/M yet though.

In other news, when using the Gotek RP/M is clearly detecting the double byte signature on sector 0 as it proceeds to try and Execute boot.

Code:

57344 bytes - RP/M for Gemini V2.1                                                        
                                                                                          
** RP/M ready **                                                                          
*b                                                                                        
Executing boot

If I fiddle with the Gotek settings I can see Bad disk and Wrong disk. It feels like I am close.

16th May 2019, 4:10 pm	#51
john_newcombe Hexode Join Date: Apr 2019 Location: Skipton, North Yorkshire, UK. Posts: 252	Re: Gemini 80-Bus System I have just successfully formatted a floppy disk with the format.com program you sent. I created an RP/M hex file and pasted it into the terminal to load at 0100. It ran and successfully formatted my double sided 80 track drive although it only formatted to 35 tracks. My drive has a 40/80 track switch, I am guessing that at 40 track it will be double stepping. I guess this is progress, still no CP/M yet though. In other news, when using the Gotek RP/M is clearly detecting the double byte signature on sector 0 as it proceeds to try and Execute boot. Code: 57344 bytes - RP/M for Gemini V2.1 RP/M ready b Executing boot If I fiddle with the Gotek settings I can see Bad disk* and Wrong disk. It feels like I am close.