Print Page - Jiffy Dos

Title: Jiffy Dos
Post by: swordfish1030 on September 23, 2007, 03:09 PM

I am thinking of installing Jiffy Dos on my C128 and on 2 1571's.. is there any thing it is not compatiable with?
I know of the increase in speed.. but are there any ill effects?:pucko:

Thanks!

Title: Jiffy Dos
Post by: bacon on September 24, 2007, 04:47 PM

I have had JiffyDOS for four or five years now and seen no ill effects. The neat thing is, if a program doesn't work with JiffyDOS, you just flick a switch and you're back to boring old Commodore DOS.

Title: Jiffy Dos
Post by: swordfish1030 on September 25, 2007, 03:25 PM

do you have the reset on the drives to disable jiffy dos on them too? Or just the C128

Title: Jiffy Dos
Post by: bacon on September 25, 2007, 04:32 PM

I only have JiffyDOS in one drive, a 1541-II, and I have a switch installed. No reset button though. If I need to turn JiffyDOS off (almost never happens) I flick the switch on the computer and the drive and then hit the reset switch on the computer which resets the drive too.

Title: Jiffy Dos
Post by: swordfish1030 on September 28, 2007, 12:29 AM

cool new, thanks!

Title: Jiffy Dos
Post by: 11001010 on September 28, 2007, 01:31 AM

Correct me if I'm wrong, but I don't think a switch is necessary for the 1571 drives.

Title: Jiffy Dos
Post by: zeke1312 on October 04, 2007, 09:25 AM

Short of opening the C128 or 1581, is there a way to check and see if JiffyDos is installed?

Title: Jiffy Dos
Post by: Andrew Wiskow on October 04, 2007, 09:58 AM

Quote from: zeke1312Short of opening the C128 or 1581, is there a way to check and see if JiffyDos is installed?

Yes... Just read the error channel as soon as the drive is turned on. If it's got an original Commdore ROM, then it'll say something like 73,CBM DOS V2.6 1541,00,00... If it's got JiffyDOS, then it'll say 73,JIFFYDOS 5.0 1541,00,00 (version number may vary depending on the version of the chip installed)...

You can use this small BASIC program to read the error channel:

Code Select

0 OPEN1,8,15
1 GET#1,A$:?A$;:ON-(ST=0)GOTO1:CLOSE1

Just change the "8" in line 0 to whatever device you want to read the error channel on. You need to do this as soon as the drive has been turned on, before loading anything. So if you've already used the drive, simply turn it off and back on again, then run this program. Otherwise, it'll just read 00,OK,00,00.

-Andrew

Title: Jiffy Dos
Post by: airship on October 05, 2007, 01:38 AM

Or instead of turning it off and on, you can reset the drive first with "U9":

0 OPEN 1,n,15, "U9"
1 GET#1,A$;?A$;ON(ST=0)GOTO1:CLOSE1

Title: Jiffy Dos
Post by: 8502 on October 05, 2007, 07:26 AM

Quote from: swordfish1030I am thinking of installing Jiffy Dos on my C128 and on 2 1571's.. is there any thing it is not compatiable with?

Installed JiffyDOS 6 in my c128dcr last week :)

My observations so far:

- C2N Datasette no longer functions (?ILLEGAL DEVICE NUMBER ERROR if attempt is made)

- International keyboard support not working on European machines (eg, ASCII/DIN key etc.)

In both cases it's because the code in the Kernal has been removed to make space for JiffyDOS.
Who cares about these functions though?

- if BASIC8 is running, @ prefix is hijacked by BASIC8 - can't remember if / prefix still works.

Quote from: 11001010Correct me if I'm wrong, but I don't think a switch is necessary for the 1571 drives.

No switch required for the 1581 either.

Title: Jiffy Dos
Post by: swordfish1030 on October 05, 2007, 01:03 PM

wiskow, I love your printer stand!

Title: Jiffy Dos
Post by: airship on October 05, 2007, 01:34 PM

Pff! MINE will look just as good as Wiskow's, but MINE will play chess*! :)

*If I ever get it working, that is...

Title: Jiffy Dos
Post by: Andrew Wiskow on October 05, 2007, 02:12 PM

Quote from: swordfish1030wiskow, I love your printer stand!

Thanks... Just goes to show you that even dead Commodore hardware has its uses. ;-)

-Andrew

Commodore 128 Alive!

Commodore 128 => Herdware => Topic started by: swordfish1030 on September 23, 2007, 03:09 PM