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JiffyDOS Mod for Dolphin DOS Kernal SD2IEC enhanced   [2015]

JiffyDOS Mod for Dolphin DOS Kernal SD2IEC enhanced Released by :

Release Date :
21 April 2015

Type :
C64 Hardware

Jiffy Dolphin SD2IEC Patch

User rating:awaiting 8 votes (5 left)   See votestatistics

Credits :
Code .... LogicDeLuxe
Idea .... LogicDeLuxe
Ripping .... LogicDeLuxe

Download :

Look for downloads on external sites:

User Comment
Submitted by Thunder.Bird on 19 July 2023
Now that's a new level of experience. Works like a charm. Superfast. KUDOS
User Comment
Submitted by Burning Horizon on 1 July 2020
Noticed that an executable built with the cc65 toolset will have trouble with this JiffDOS patch. Seems it drops reads if a program is doing repeated reads (like in the provided example: many fscanf calls.) Genuine JiffyDOS seems to work fine.

If anyone wants to patch the patch, here is a test program:
User Comment
Submitted by King Durin on 2 April 2018
Is there a website for this?
User Comment
Submitted by Berry on 25 December 2015
Nice release, however i miss the JiffyDOS CTRL-D (switching drives) functionality.

Also my µIEC drive (see: http://c64.berrydejager.com/got-uiec) isn't recognised and returns "?DEVICE NOT PRESENT ERROR"
User Comment
Submitted by LogicDeLuxe on 31 May 2015
Make sure to use the v1.1 patch, since the earlier upload has a broken NTSC message.
User Comment
Submitted by GeoAnas on 23 April 2015
Another excellent release ! I will test it ASAP...Thanks ;-)
User Comment
Submitted by Tom-Cat on 23 April 2015
Since noone else commented... I think the addition of CD 'parent' and CD directory functionality is REALLY great when used on SD2IEC. Great work !
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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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