Previous Thread
Next Thread
Print Thread
Page 3 of 3 1 2 3
#112619 - 02/14/18 11:06 PM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 863
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 863
Bavaria
Absolutely amazing! Looking forward to trying the emulation. If you need something checked out on the keyboard I can pass on the request to Aquarius.

[Linked Image]


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#112621 - 02/15/18 12:13 AM Re: Olympia BOSS [Re: rfka01]  
Joined: Mar 2001
Posts: 15,851
R. Belmont Online content
R. Belmont  Online Content

Very Senior Member

Joined: Mar 2001
Posts: 15,851
USA
You get a feel after a while for what read/write patterns go to what chips. I cruised through konmedal68k because I know what the init patterns look like for all the System GX-era chips.

#112622 - 02/15/18 12:28 AM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 749
crazyc Offline
Senior Member
crazyc  Offline
Senior Member

Joined: Jan 2012
Posts: 749
Yup, you can tell which devices a machine has by looking at the pictures then look for patterns. The am9519 was a new one so I had to look at the data sheet but the upd765 will always get a specify command first so you'll see 0x03 followed by two bytes. Things like motor control is a bit harder but it's usually a bit setting just before a floppy read, write or seek.

#112636 - 02/15/18 06:30 PM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 749
crazyc Offline
Senior Member
crazyc  Offline
Senior Member

Joined: Jan 2012
Posts: 749
[Linked Image]
Some programs run, other don't, no idea why.

#112640 - 02/15/18 11:37 PM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 863
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 863
Bavaria
Great progress!
Could it be a disk ready problem? Displaying the directory sometimes needs two tries, and disks cannot be formatted, Error 01 is "Drive not ready", your ER.4 is "first addressed sector outside scope for selected drive".


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#112662 - 02/16/18 07:39 PM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 863
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 863
Bavaria
Maybe the truth is somewhere in between ... or somewhere completely else. With the last changes to the floppy system, the QD versions boot CP/M despite the errors

[Linked Image]

whereas the DD version that used to boot now doesn't.

[Linked Image]

Formatting on drive B: also still fails.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#112669 - 02/17/18 01:55 AM Re: Olympia BOSS [Re: rfka01]  
Joined: Jan 2012
Posts: 749
crazyc Offline
Senior Member
crazyc  Offline
Senior Member

Joined: Jan 2012
Posts: 749
[Linked Image]
8085 prologue
Edit: This version of the OS is case sensitive.

Last edited by crazyc; 02/17/18 04:10 AM.
#112676 - 02/17/18 09:08 AM Re: Olympia BOSS [Re: crazyc]  
Joined: May 2012
Posts: 432
shattered Offline
Senior Member
shattered  Offline
Senior Member

Joined: May 2012
Posts: 432
Originally Posted by crazyc
Yup, you can tell which devices a machine has by looking at the pictures then look for patterns. The am9519 was a new one so I had to look at the data sheet but the upd765 will always get a specify command first so you'll see 0x03 followed by two bytes. Things like motor control is a bit harder but it's usually a bit setting just before a floppy read, write or seek.


A self-test routine also helps, I've mapped most of Displaywriter's floppy controller (i.e. parts other than upd765) by running every test it has in the ROM. There's still plenty to work on in that driver until it boots actual text editor software, though.

Page 3 of 3 1 2 3

Who's Online Now
6 registered members (Vas Crabb, AJR, judge, Roberto Fresca, EoceneMiacid, MarkBielman), 32 guests, and 1 spider.
Key: Admin, Global Mod, Mod
Shout Box
Forum Statistics
Forums9
Topics8,496
Posts110,806
Members4,781
Most Online225
May 26th, 2014
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.028s Queries: 16 (0.008s) Memory: 4.9964 MB (Peak: 5.2313 MB) Zlib enabled. Server Time: 2018-02-22 16:39:36 UTC