Jiffydos mister. Sales were nominal, but steady.
- Jiffydos mister Assume a MiSTer user port to IEC adapter does not connect this line unless it is explicitly stated that it supports the C128 fast serial protocol. d81) Supporting G64 disk images (*. com/MiSTer-DE10-Standard/Main_MiSTer/wikiC64 Core Download for DE10-Standar the JiffyDOS adapter, doing so may not leave enough clearance between the JiffyDOS ROM and the top cover of the drive. Feb 3, 2008 · The 1541-II uses a single 16k 23128 type ROM. You can load only part of a whole ROM, for example only C1541 The advantage of JiffyDOS is that you can load files from the simulated 1541 disk drive (*. 318020-03. With the cartridges, you'll generally have to disable or unplug them pretty frequently to get certain games to work. This ROM is pin compatible with standard 27(c)128 EPROMs. Thanks for any help. bin JiffyDOS_C64. tap) Supporting D81 disk images (*. rom to anything else (e. Works like a charm: Amiga (own . Top. into C16 folder or subfolder. JiffyDOS sales were hampered by issues with my Willem programmer (after I returned home, I determined the configuration switches were faulty), preventing me from flashing some of the JiffyDOS versions. Mar 23, 2013 · JiffyDOS_C1541. May 24, 2021 · ↳ MiSTer Updates & Changelog; ↳ MiSTer FPGA Project Wiki; ↳ Discussion About The Forum; ↳ MiSTer Community Game Club; Newcomers Forum; Console Cores; ↳ Game Boy, Game Boy Color; ↳ Game Boy Advance; ↳ Genesis / Mega Drive, Sega CD, 32X; ↳ Neo Geo MVS / AES / CD; ↳ NES (Nintendo Entertainment System) ↳ Nintendo 64 (N64) Commodore 64 core for the MEGA65 based on the MiSTer FPGA C64 core - C64MEGA65/README. Kiesel Fat LFN support and lots of other ideas+code by Jim Brain Final Cartridge III fastloader support by Thomas Giesel IEEE488 support by Nils Eilers Free software under GPL version 2 ONLY, see comments in main. Commodore 64 core for the MEGA65 based on the MiSTer FPGA C64 core - C64MEGA65/FAQ. On the Pi1541 I have swapped in the 16 KB file called JiffyDOS_1541-II. Power up the C-128 again while holding down the Commodore key. Put boot. There are 2 ways to reset the VIC20: lctrl+lalt+ralt - cold reset with cartridge unloading - must be done before loading the new game! Find and fix vulnerabilities Codespaces Yet, at this moment, our MEGA65 version of the MiSTer core is still lacking some nice features such as: Use the MEGA65's physical drive as a C1581; NTSC mode; Mounting tapes (*. The provided main binary is up-to-date with the latest changes as well. Put for example kernal. 1K subscribers in the Commodore community. Section 4, “The JiffyDOS Commands”, provides a description of each JiffyDOS command. Q: What do the jumpers in EasyFlash 3 cartridge do? A: The jumpers, or jumper block, are relevant to the USB functions. I prefer to build custom Kernals rather than go through MRAs. JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 or C-128 the disk access speed it has always needed. Sep 23, 2021 · After loading either 1541, 1541-II, or 1581 Jiffydos ROM and I do the @ command it displays the Dolphin DOS ROM information. ) COPY /B BASIC. I'm guessing you need the C1541 part and concatenate them, at the very least. Maybe the loading of the Drive ROMs hasn't been implemented yet. The 1541 "C" adapter will install directly in the socket vacated by the piggyback board, and Feb 12, 2023 · I use it regularly to switch to Jiffydos for example. The SD2IEC is an SD CARD reader for commodore computers that emulates floppy disk drives like the 1541 and 1541-II. I use Jiffydos on my Turbo Chameleon 64 simulated drives. Collection of links and articles about the famous PET, VIC, C64, C128, TED, Amiga and PC Commodore… No, the S-JiffyDOS kernel ROM has a reduced command set compared to the standard JiffyDOS kernel ROM - Hence the reason I use the JiffyDOS kernel rom in the C64 for the better command set, and I use the S-JiffyDOS ROM in the 1541 for the speed improvement over the standard JiffyDOS drive ROM. May 25, 2020 · The JiffyDos rom is a more modern product and is still sold officially by its designer. Basically, if you wanted to use the tape port or there were compatibility issues you would switch back. de/ C'est une boutique très sérieuse et les prix sont très intéressants (à par le port mais c'est normal, çà vient d'Allemagne). Commodore VIC-20 for MiSTer. Hey All, I use Jiffy Dos primarily with my C64 core - but it doesn't have tape support so I often revert back to stock. MEGA65 owners can now easily and of course freely add another personality to their computers: An incredibly compatible and enhanced C64! JiffyDos send based on code by M. com has signed a license agreement to sell JiffyDOS and specific ROM code (FD-Series and HD-DOS), as listed below as digital downloads and physical rom chips. Need to generate a new clock pulse for the 20 Mhz somehow (the PLL already has 3 setup and could potentially clock divide the 1mhz into 20), but it might be possible to change the mode of the CPU to be the 65C816 and get somewhere near the SuperCPU without the additional RAM that the FREE SDCARD INLCUDED Kung Fu Flash for Commodore 64 can emulate different types of cartridges. May 26, 2020 · In the Mister C64 Menu, go to Audio&Video, Set both SIDs to 6581, Right SID Port same, video PAL - for the time of testing seems to work best Load RetroTerm prg and ATDT your way to lu8fjh-c64. Jul 11, 2020 · TLPD-AVW wrote: ↑ Sat May 15, 2021 10:20 am I have a question to enthusiasts of Commodore's less popular machine. Contribute to MiSTer-devel/VIC20_MiSTer development by creating an account on GitHub. JiffyDOS Disk Drive Speed Enhancement System. A lot. To use JiffyDOS or another alternative kernel, replace the filenames with the name of your ROM or BIN file. What Is JiffyDOS? JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 or C-128 the disk access speed it has always needed. Great. See my previous post on how to update your MiSTer main binary. There are 2 ways to reset the VIC20: lctrl+lalt+ralt - cold reset with Jul 27, 2009 · Seems like the C64 Kernal is the same as J. This is an electronic download of JiffyDOS for the Commodore VIC-20. com/MiSTer-DE10-Standard/Main_MiSTer/wikiC64 Core Download for DE10-St C64 on DE10-Standard FPGA - TurricanDE10-Standard MiSTer Wiki Page:https://github. for c16 and plus4 Can you help me with a little tutorial? I am from German and i cant read english. bin in the C64 directory, and JiffyDOS_C1541. rbf for the core, and a modified MiSTer main binary because the core needs changes to that for the 157x changes. 01 (C)1989 CMD. The ROM for the original 1541 only covers half the drive ROM and does not work with emulators. bin, and program the correct SX-64 kernal ROM in with JiffyDOS. During normal USB Creative Micro Designs, Inc. FIXME:This file still needs to be expanded. #tvspel #videogames #retrogaming #retrospel #gaming #computergames #dataspel #datorspel #commodore #commodore64 #c64 #misterfpga #fpga #mister #jiffydos". Hallo @allIch verfüge über keine Laufwerke, die mit Speeddos oder Jiffydos modifiziert wurden. rom, jiffy. MiSTer FPGA Bible Commodore 16, Plus/4 Type to start searching Home Getting Started Hardware Add-Ons JiffyDOS Disk Drive Speed Enhancement System. net:6402 to enjoy SIDs/PCM files and even Internet Radio (PCM 11kHz) streamed online on C64 core How to use JiffyDOS with the C64 and the Ultimate 1541-II Drive emulation cartridge the JiffyDOS screen, depending on the current setting of the selector switch. for vc20 2. The C64 MiSTer core is outstanding. Jun 19, 2020 · ↳ MiSTer Updates & Changelog; ↳ MiSTer FPGA Project Wiki; ↳ Discussion About The Forum; ↳ MiSTer Community Game Club; Newcomers Forum; Console Cores; ↳ Game Boy, Game Boy Color; ↳ Game Boy Advance; ↳ Genesis / Mega Drive, Sega CD, 32X; ↳ Neo Geo MVS / AES / CD; ↳ NES (Nintendo Entertainment System) ↳ Nintendo 64 (N64) Jul 25, 2020 · I got JiffyDOS working for my MiSTer, but found it was too fast or incompatible with my SD2IEC, the problem probably bring its only running firmware version 0. Content of kernal. A portion of ever sale goes to the IP owner! Oct 10, 2014 · Only last month we featured possibly the best way to play C64 cassettes in the form of the UCassette, but this time we are moving onto a piece of hardware that comes highly recommended for old disk based games and the latest homebrew titles, and that is the SD2IEC. As a result it will be busy processing the UI command when the controller asserts ATN. d64 files) significantly faster. Are there any other kernels recommended for use with the MiSTer C64 that have benefits of JiffyDos in terms of performance (and maybe a few other bells and whistles), but like stock can handle tape loading? Apr 14, 2020 · With pretty much everything squared away, lets add JiffyDOS to speed things up a bit. Daher hat Maik sich bereit erklärt und Videomaterial für euch Purchase. Jim, what order do the . bin in the Drives directory. rom. Works. Use the Adapter to connect a real Commodore Floppy 1541 or compatible devices (SD2IEC/PI1541) to your MiSTer. The JiffyDOS protocol has very relaxed timing constraints compared to Turbodisk, but still not as relaxed as the standard Commodore IEC protocol. Need help: Commodore 64 default path for games: i am using a folder "c64", root, Mini-SD Card with Jiffy-ROM in it. Mr Brain’s ROMs are called v 6. Jan 1, 2019 · But as you noted, load times are just as slow as a real 5. rom, etc. I was using a Raspberry Pi 3 Model B v1. May 29, 2022 · Thus you can easily switch between the normal MEGA65 ROM and the JiffyDOS C64 ROM based on what you want to do at the time. A little input from MR> some existing users might help. bin +JiffyDOS_1541-II. 7. Are there any other kernels recommended for use with the MiSTer C64 that have benefits of JiffyDos in terms of performance (and maybe a few other bells and whistles), but like stock can handle tape loading? System ROM can be loaded from SD card. zip and place that in the /games/mame/ folder, Both boot0. Sep 3, 2019 · JiffyDOS. Jun 25, 2020 · Ep 7 : JiffyDOS - an enhanced disk operating system and drive performance booster for the Commodore VIC-20, 64, and 128. Real-time clock RTC is PCF8583 connected to tape port. It also works with real hardware disk drives that you attach via the MEGA65's IEC port as long as you have installed the JiffyDOS ROM on those drives, too. d64 and *. rom and boot1. g64) Formatting disk images (*. IW2QS The Ultimate Speed Enhancement System Directory DList Load Load/Run Save Load ML Setatch CMD Save Scratch CMD IW2QS JiffyDOS for the Commodre VIC-20. Mar 8, 2022 · To use JiffyDOS or another alternative kernel, replace the filenames with the name of your ROM or BIN file. ROM file for a Jiffy C64 mode. Jan 28, 2006 · MR> I'm trying to decide on how to set up the function key definitions MR> for the C16 and Plus/4 in the JiffyDOS kernal. For legal reasons, no Apr 7, 2022 · The Adapter converts the MiSTer FPGA User Port (Serial IO/SNAC) into a Commodore IEC/CBM (Serial) Bus Port. Jan 3, 2024 · It's actually possible that the JiffyDOS ROM executes the command immediately after sending the byte with EOI (or that I am not sending the EOI correctly). rom: C1541(16KB) + PAL kernal(8KB) + NTSC kernal(8KB) You can load only part of whole ROM, for example only C1541 + PAL kernal (JiffyDOS). bin In order to create System ROM jboot0. Learn more about JiffyDOS in the C64 Wiki. rbf file from the /_Computer/ folder to a (new) /_Computer/cores/ folder, Download (some of) the *. 10. com/MiSTer-DE10-Standard/Main_MiSTer/wikiC64 Core Download for Dec 15, 2016 · JiffyDOS is approx 10 times (EDIT: See thread right below for SD and other speeds) the read speed of a 1541 with JiffyDOS ROM installed as well. ddns. x *** b. Turn the C-128 OFF, and then place the selector switch in its other position. Gallery Technical Details Support Project Files Frequently Asked Questions How do reflash the unit back to standard? C64 on DE10-Standard FPGA - Bubble BobbleDE10-Standard MiSTer Wiki Page:https://github. . Thank you ! Top. (CMD) was founded in 1987 by Doug Cotton and Mark Fellows. (JiffyDOS). Traffic was lighter than usual, and seemed light all day. So, to be able to use the fast loading routines, also the disk drive has to be installed with JiffyDOS, or be otherwise compatible with the JiffyDOS protocol, such as devices using the sd2iec firmware. rom") and load it from hardware options menu. bin kernal. A chip-for-chip replacement for the Kernal ROM in your computer and the DOS ROM in your disk drive(s), JiffyDOS achieves levels of performance and compatibility unmatched by other disk speed-enhancement products. rom you will have to run the following command in Windows CMD Oct 14, 2021 · How can i create jiffydos for mister? 1. bin z80bios. As noted in a previous post, along with finding that Green Mountain Micro (GMM) had created a lowercase modification for the CoCo called “lowerkit”, Eurohard SA also created a lowercase update for the Dragon 200e for the Spanish market, which I think was planned or actually produced as an official part of the Dragon 200e… As noted in a previous post, along with finding that Green Mountain Micro (GMM) had created a lowercase modification for the CoCo called “lowerkit”, Eurohard SA also created a lowercase update for the Dragon 200e for the Spanish market, which I think was planned or actually produced as an official part of the Dragon 200e… listing of C64-Pack. md at master · MJoergen/C64MEGA65. Copy files from a disk image to an actual disk using Jiffydos and SNAC2IEC. JiffyDOS, how to use the JiffyDOS function keys, how to control listings and how to get the most performance out of your system. Disk I/O won't work without the modified main binary. rom file are placed in the games/C128 Also when a Pi1541 is paired with an Easy Flash 3 (or presumably KFF can do this too - Edit: it can't), with that combination you can load Jiffydos onto both the C64 and the Pi1541 to get Jiffydos speeds without any hardware mods. bin +JiffyDOS_C64. Original versions of Maniac Mansion have an additional copy protection check that is not supported by sd2iec. Jan 30, 2021 · There's also Backbit, I think Intric8 did a review on that device and while not as featured as the UII+, it seems pretty good for the $$. zip; file as jpg timestamp size; JiffyDOS-full/ 2021-11-02 13:10: JiffyDOS-full/CMD FD-2000 DOS V1. I'm not in front of my Mister or I would check, but my muscle memory seems to think that is correct. This video guide you through the setup steps required to run C64 on the MiSTer using JiffyDOS for a major performance boost when loading games from floppy images. C64 Switchless JiffyDOS module:Longboard: http://melbourneconsolerepros. Again, I am trying to load JiffyDOS without having a screen or keyboard attached and only use the hat and the OLED. Jun 22, 2020 · We would like to show you a description here but the site won’t allow us. bin renaming it Jiffy. Multiple alternative Kernal ROMs can be loaded from SD card. In the alternative, you are welcome to offer assistance at completing the JiffyDOS support in the MEGA65's ROM. It looks like JiffyDOS is detecting EOI on the 2nd of the 3 bytes, rather than on the 3rd one. MJoergen and sy2002 just released the Commodore 64 for MEGA65 core version 5 and their MiSTer2MEGA65 framework version 1. rom into VIC20 folder. VICE is a program that runs on a Unix, MS-DOS, Win32, OS/2, BeOS, QNX 4. May 25, 2020 · I think on a standard US keyboard to get "*" on C64 it's the 2/@ key and ] key, or if you are using Jiffydos just press shift+esc. May 24, 2020 · Here are a few videos of me using my MiSTer IEC adapter to copy a disk image to an actual disk and another video printing to my MPS803 printer. I installed the JiffyDOS Kernal ROM IC on the board and my machine is sucessfully loading the screen that says: JIFFYDOS V6. It's faster to just use the normal /, %, ^, and @ keys on JiffyDOS systems are also compatible with all serial bus devices. It is partially based on the documentation found on the internet, and partially reverse engineered by observing IEC logs generated by VICE emulator. 2. The alternate screen should be Jan 25, 2021 · Instructions for installing JiffyDOS in VICE Emulator. A chip-for-chip replacement for the Kernal ROM in your computer and the DOS ROM in your disk drive(s), JiffyDOS achieves levels of performance and Hello! How can i create jiffydos for mister? 1. However, there’s one major challenge, loading games Mar 12, 2023 · After some research and some trial and error, I finally managed to create the JiffyDOS ROMS for the C128 Mister CORE. bin You can place them anywhere you like, but if you want to be neat about it, go to your VICE directory and put JiffyDOS_C64. Use it with compatible Cores like the C64 Core. I know there are better and faster ways to load a game into a MiSTer's Core, but this is fun 🚀. g. The JiffyDOS Guarantee and Warranty are included at the back of this manual. 0. Feb 15, 2024 · To use JiffyDOS or another alternative kernel, replace the filenames with the name of your ROM or BIN file. TFW8b’s version of the SD2IEC is the most common method of loading/saving on a Commodore 8bit Today! So Don’t wear out your precious tapes – SD2IEC’s are the Future Jul 3, 2020 · MiSTer is connected to a CRT TV via Direct Video and VGA-SCART cable. C64 on DE10-Standard FPGA - International KarateDE10-Standard MiSTer Wiki Page:https://github. Content of boot. JiffyDOS systems are also compatible with all serial bus devices. 40 CS 33CC6F. Units are available for order now. The speed routine needed to be put somewhere so they put it where the TAPE routine is. Nov 25, 2022 · In the attachment you'll find the . For physical ROM replacements of JiffyDOS, go here. com/These copies of JiffyDOS are try and buy JiffyDOS Overlays Commodore 64 & 128 Recreated from originals by Shane Fell (saehn/Style) Version 1 - 02/17/09 81/2"x11" 300dpi To use, simply print out at 100% size onto heavy paper (like cardstock) and cut out. ROM May 25, 2020 · Hey All, I use Jiffy Dos primarily with my C64 core - but it doesn't have tape support so I often revert back to stock. My real Commodore drives with Jiffydos are working on my ironclad MiSTer with the IEC adapter. 3, but more problematic is that its bootloader does not support automatically updating the firmware. Thank you so much for your work I was looking forward to a C128 core for the MiSTer. bin file and worked with JiffyDOS! Load times are exponentially faster! Pi1541 is supposed to be compatible with RPi3B but maybe JiffyDOS needs 3B+ to work correctly?. bin MYOWN. md at master · MJoergen/C64MEGA65 JiffyDOS is a third-party disk drive 45 likes, 3 comments - tvspelsdagboken on October 1, 2020: "Tog tag i och fixade JiffyDos på MiSTer. JiffyDOS is commercial software. bin replaces the following 3 ROMS: editor. Compatible with CRT, PRG or D64 files on a FAT-formatted microSD card and use the built-in launcher to… May 26, 2020 · ↳ MiSTer Updates & Changelog; ↳ MiSTer FPGA Project Wiki; ↳ Discussion About The Forum; ↳ MiSTer Community Game Club; Newcomers Forum; Console Cores; ↳ Game Boy, Game Boy Color; ↳ Game Boy Advance; ↳ Genesis / Mega Drive, Sega CD, 32X; ↳ Neo Geo MVS / AES / CD; ↳ NES (Nintendo Entertainment System) ↳ Nintendo 64 (N64) Jan 13, 2019 · From here I made a 16k 1541 image of combining the regular 1541 image and the jiffydos image where the jiffydos would be the primary side (same method of how I used to burn EPROMs). Recently I asked on Gideon's FB page if the newly implemented additional ram drive had a hardware ID so it could be accessed from JiffyDOS, I also asked if the software IEC 'Hyperspeed' mode could be implemented in JiffyDOS as the alternate kernel really isn A Scala Commodore 64, 128, VIC20, CBM2 and SuperCPU emulator - abbruzze/kernal64 May 25, 2020 · ↳ MiSTer Updates & Changelog; ↳ MiSTer FPGA Project Wiki; ↳ Discussion About The Forum; ↳ MiSTer Community Game Club; Newcomers Forum; Console Cores; ↳ Game Boy, Game Boy Color; ↳ Game Boy Advance; ↳ Genesis / Mega Drive, Sega CD, 32X; ↳ Neo Geo MVS / AES / CD; ↳ NES (Nintendo Entertainment System) ↳ Nintendo 64 (N64) Feb 11, 2025 · VICE, the Versatile Commodore Emulator¶ Background¶. Jun 19, 2020 · The Commodore 64 (C64) is one of the best 8 bit computers ever made. J'ai reçu mes ROM JiffyDOS officielles achetées chez https://restore-store. 25″ unless you use something like JiffyDOS. I happened to have a model 3 B+, as well, so I swapped the Pi1541 over to that board and voila! It loaded the Jiffy. Hi Paul, What are the requirements to create a MEGA65x. If JiffyDOS is selected, the power-on screen will read: *** JIFFYDOS/64 VERSION x. Thanks to Jan 1, 2025 · This means I can now obtain my JiffyDOS license and . Thank you for working on bringing the C128 to the MiSTer. A chip-for-chip replacement for the Kernal ROM in your computer and the DOS ROM in your disk drive(s), JiffyDOS achieves levels of performance and The Adapter converts the MiSTer FPGA User Port (Serial IO) into a Commodore IEC/CBM (Serial) Bus Port. If you have any questions, please message me. Brain is selling but the 1541-II rom is not the same – although the version number hasn’t changed. In short, the JiffyDOS_C128. x, QNX 6. bin. Hello! How can i create jiffydos for mister? 1. To create a JiffyDOS chip for that drive, you need to program a 27(c)256 with the normal firmware programmed in the first (lower) half and JiffyDOS for the 1541-II programmed in the upper half. 00 on the filename but in the rom it’s called “JIFFYDOS 5. The C64 Jul 27, 2009 · Seems like the C64 Kernal is the same as J. mra files from the mra directory and place them in the /_Computer/ folder, Download C128rom. Ska utvärderas ikväll. 0 1541″. c and COPYING for details. GroundhogGrafix Retro Website: http://groundhoggrafixretro. ROM Description. COREi64. For me to edit the rom and then upload on here would be a blatant act of piracy for which I don't want to bring either the MiSTer Project or myself into the spotlight. Latest release added an option to load KERNAL rom from the menu, allowing to store several different system roms instead of just a single boot. In addition, JiffyDOS-equipped disk drives can be used with stock C64 and C128 computers, if necessary. ROM Jan 20, 2021 · Seems that the T65 implementation (the CPU of the current c64 core) is actually capable of being a 65C816. whd Images), Commodore 64 (JiffyDOs, no problem), ao486 (own bootdisk, own VHD gamefiles, own optimized games, but still experimenting). Personally, I've never understood the point of JiffyDOS' function key definitions. bin: 2008-01-14 22:41 Feb 24, 2023 · Code: Select all Move the core's C128_XXXXXXXX. Support Retro Bits on Patreon - https Here is a description of the JiffyDOS protocol, as implemented in Open ROMs, from the perspective of IEC bus controller. You will also find Oct 22, 2020 · Got my new MISTer FGPA yesterday. Maniac Mansion. Jim and Oliver working on project The advantage of Jiffydos over fast load cartridges is that it has much better compatibility with games and programs. It is a computer technology company which originally developed and sold products for the Commodore 64 and C128 8-bit personal computers. JiffyDOS is supported by sd2iec natively. Return your present JiffyDOS 1541 ROM to Creative Micro Designs and request a 1541 "C" Adapter Board in exchange. Nov 15, 2024 · Pour accélérer les chargements depuis le SD2IEC et l'écriture de disquettes sur le 1541, on m'a conseille JiffyDOS. WinVICE-=-=-=-= Go to the Settings menu and select ROM settings. Still getting same issue. rom: C1541 + kernal + basic + func_low + func_high Each part is 16KB. JiffyDOS is a Disk Operating System (DOS) enhancement designed to significantly improve the disk access speed of your Commodore 64 (C-64), Commodore 128 (C-128), Commodore VIC-20, Commodore SX64 or Commodore C16/C116/+4. g64) Supporting MiSTer's GCR-level disk manipulation Oct 14, 2021 · Hello! How can i create jiffydos for mister? 1. So the Pi1541 has some great features that SD2IEC doesn't have. x, Amiga, Syllable or Mac OS X machine and executes programs intended for the old 8-bit computers. MiSTer's C16 core has an option to switch between two different computer models — Commodore 16 (expanded to 64K) and Commodore Plus/4 (64K by default). "JiffyDOS. bin ROM's need to go in, for the AT49F512, and for use with SX-64 and JiffyDOS? Does the SX-64 ROM begin at 0000, end at 0800, and then JiffyDOS goes in after it? SD2IEC provides much of the functionally a 1541 disk drive, supports fast loaders like JiffyDos, Final Cartridge III and Epyx FastLoad. Table 1: C-64, SX-64, C-128 in 64 Mode 1541 1571 1581 Disk Operation Stock JiffyDOS Stock JiffyDOS Stock JiffyDOS Load 202-block program (PRG file) 124 12 124 9 102 8 May 24, 2020 · TLPD-AVW wrote: ↑ Tue May 04, 2021 10:43 pm Rename boot. rom, kernal2. JiffyDOS can be installed on disk drives regardless of device number, and devices numbers can be changed on JiffyDOS drives via software or hardware with no problems. Sales were nominal, but steady. (Note, you muse use the 1541-II ROM. bsak zehef venl tiwty kymnp dwmktpce maebkoq yyifek mdllg ztxn rjfijxng ksxi wfkz yzlwtcn ffigcs