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It is possible that one or more of the hardware experts will be able to answer (2), but I doubt very much that any of the current forum members will be able to answer questions (4), (5), and (7).

Regards,
Steve

Just discovered another MC10 emulator.
http://alice32.free.fr/

Is this any better than Virtual MC10?

Hi guys, I was browsing lots of Dragon literature during the last days but I (Dragon noob) still have some questions: 1) Do the ROMs include BASIC and firmware (BIOS)? 3) Did Premier Microsystems just deliver the Delta-DOS on cartridge or was it sold as bundle with disk drive(s)? 8) Were all Dragon...

If anyone is curious - I think STUB2 EQU $0134 is the missing line. That is correct! Seemed to work... kinda. One of the two commands added in that example worked anyway. :) You must have made a mistake somewhere because I typed in that example during the 80's and I clearly remember that both comma...

Hi. My previous stuff uploaded wothout problems. I am currently having no success in uploading my stuff - the system just keeps showing that spinning arrow and eventually defaults to a new blank upload screen. Is it perhaps a system issue or could it be on my side? I am trying to upload 3 programs ...

Here is a BASIC conversion of my Machine Detect program. 10 CLS:PRINT"COCO/DRAGON MACHINE DETECT V1.0" 20 PRINT"BY STEVE EVANS (ZEPHYR)" 30 FOR I=&H200 TO &H225:READ A$:POKE I,VAL("&H"+A$):NEXT 40 PRINT:PRINT"DETECTED MACHINE:":PRINT 50 GOSUB 100:GOSUB 200:GOSUB 300:END 60 DATA 1A,50,F,76,DC,0,FE,80...

Thanks Ciaran!

Here is a little more information about the 16-bit timer (counter) from the official MC6803 data sheet (attached below). COUNTER ($09:0A) The key timer element is a 16-bit free-running counter which is incremented by E (enable). It is cleared during reset and is read-only with one exception: a write...

There appears to be a regularly updated 16-bit timer at $0009-$000A on the MC-10. I don't know what its for, but it seems like the ideal thing for duplicating the X=RND(-TIMER) recommended for use in CoCo/Dragon BASIC programs. e.g. 10 X=RND(-(PEEK(9)*256+PEEK(10))) EDIT: I see from the 6803 data sh...

Take a look at pages 238 to 242 of "Inside The Dragon" for a good example of adding new commands to BASIC.

Regards,
Steve