Search found 8 matches

by WilkoUK
Wed Feb 18, 2015 3:00 pm
Forum: Dragon General
Topic: Non Dragon ROM 1-1
Replies: 13
Views: 5572

Re: Non Dragon ROM 1-1

tormod wrote:You can load the attached m/l program (wav file) from tape using CLOADM and EXEC. It will calculate a checksum of the ROM and compare it with known ROMs. If it prints "ORIG" you have the normal Dragon 32 ROMs.
Came back with B068 = ORIG
by WilkoUK
Wed Feb 18, 2015 2:57 pm
Forum: Dragon General
Topic: Non Dragon ROM 1-1
Replies: 13
Views: 5572

Re: Non Dragon ROM 1-1

tormod wrote:Of course, I would recommend swapping that 1-1 PROM with a DWLOAD EPROM :geek:
Hmm not a bad idea.. What does the DWLOAD ROM give me? DIR, DSAVE, DLOAD, KILL etc etc?
by WilkoUK
Tue Feb 17, 2015 8:27 pm
Forum: Dragon General
Topic: Non Dragon ROM 1-1
Replies: 13
Views: 5572

Re: Non Dragon ROM 1-1

The machine doesn't hang or lock up, so I doubt its a RAM fault. I wrote a debugging/dis-asm tool for the Dragon when I was about 14 years old. Wish I still had it now, I'd be able to read the assembly language code in the rom from 48000. Is there such a tool available now? Unfortunately, I don't re...
by WilkoUK
Tue Feb 17, 2015 7:02 pm
Forum: Dragon General
Topic: Non Dragon ROM 1-1
Replies: 13
Views: 5572

Re: Non Dragon ROM 1-1

Hmm interesting.

When I EXEC 48000 it sort of boots and sort of doesn't..

Screen shot attached (apologies, I cut off the left hand side)
by WilkoUK
Tue Feb 17, 2015 3:58 pm
Forum: Dragon General
Topic: Non Dragon ROM 1-1
Replies: 13
Views: 5572

Non Dragon ROM 1-1

Hi Folks, Whilst I was inside the Dragon tweaking its video output I noticed that the second ROM chip isn't a Dragon 1-1 stamped ROM. Any ideas what this new ROM is? An upgrade? How can I find out a list of commands available in the ROM (I used to know all of this stuff but 34 years is a long time a...
by WilkoUK
Wed Feb 11, 2015 9:31 am
Forum: Dragon General
Topic: HDB-DOS for Dragon 32 and 64/Tano
Replies: 61
Views: 38474

Re: HDB-DOS for Dragon 32 and 64/Tano

So.. if I understand correctly. I mount a .DSK file into Drive 2 on DW4.
On the Dragon, Switch to DRIVE #2 and select DRIVE 1 to 255 within that .DSK file?
This means that DW4 had 255 "devices" each capable of serving 255 drives?

How I wish I was young again :lol:
by WilkoUK
Tue Feb 10, 2015 4:10 pm
Forum: Dragon General
Topic: HDB-DOS for Dragon 32 and 64/Tano
Replies: 61
Views: 38474

Re: HDB-DOS for Dragon 32 and 64/Tano

Hello ... Me again! I've got the Dragon and DW4 working and HDB-DOS loaded. So far so good. I'm totally confused by the DRIVE command. When I had my old FD Drive year ago you just swapped drives using DRIVE 0, DRIVE 1 etc etc Now.. am I correct in thinking that When I load a .DSK file into the vario...
by WilkoUK
Fri Dec 26, 2014 10:36 am
Forum: Dragon General
Topic: HDB-DOS for Dragon 32 and 64/Tano
Replies: 61
Views: 38474

Re: HDB-DOS for Dragon 32 and 64/Tano

Hi Folks,

I'm having a mare of a time trying to create the hdbdw3dgn32ram.wav file. Can someone point me to a link containing this wav file please? Eternally grateful and all that.

Cheers,
Paul