Jiffydos Eprom

Built in JiffyDos and RD DOS. 1 - SD2IEC - Oceanic 118N - JiffyDOS 5. 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. As described by Individual Computers, this '…gives some extra space for a second Kernal ROM and a second character set'. La retirada del integrado PROM 2364 original situado en U4 se realiza con sumo cuidado para garantizar su uso posterior en otros proyectos. IDE64 Case Installation: Here is an idea for how to package the IDE64 card so that the circuit board is protected. There is no test and measurement until all of this is broken down and after checking track and galvanfures I rebuild it all, along with the quartz exchange. The 1541-II uses a single 16k 23128 type ROM. Video Commodore 128 - Watch and download any entertainment videos, funny videos, sports video clips and many more are waiting for you. The smallest EPROM you can use is 27C512 (64Kb), and the largest is 27C040 (512 Kb). On the C64 Reloaded boards, all ROM images have been burned into a single EPROM chip. 3 Mach 70 der zur wahlweisen Aufnahme eines nichtflüchtigen programmierbaren 8-Bit-EPROM-Chips des Typs 27128 mit einer. Breadbin or 64c? if its 64c then its a doddle and can supply it for nowt. The EPROM…. DTV64 Micro Tower: Here is a hack to put the DTV64 in a cool transparant micro tower case. Wenn man nun zum Beispiel einen Floppy Speeder, wie zum Beispiel JiffyDOS einbauen möchte, so reicht es in den meisten Fällen, nur eines der beiden ROM Bausteinen auszutauschen. Watch Queue Queue. Ein Modul erstellen), möchte ich zumindest in einen C64 + 1541 JiffyDOS einbauen. the JiffyDOS screen, depending on the current setting of the selector switch. Although usually not supplied with the machine, floppy disk drives of the 5¼ inch (1541, 1570 and 1571) and, later, 3½ inch variety were available from Commodore. I’ll talk more about both of these in later post. The socket adapter re-wires the 2764 EPROM to that required by the 24-pin socket. nei miei commodore ho messo le eprom Jiffydos e sono abituato a velocita almeno 10 volte superiori, con 64HDD Free sembra essere tornati ai vecchi tempi, 202 blocchi in 2 minuti!!!. [C64]¿Alguien se anima con JiffyDOS? Mensaje por Querubin » 13 Oct 2017, 11:47. Neben der oben beschriebenen Kontroverse verhinderten diese Probleme eine Verbreitung der Flash 8 massiv. All the disk images I have tried work a treat and I didn't expect otherwise as it has Cloanto logos on the box so assume the emulation is based around the Amiga/C64 Forever Cloanto emulators which I have always found to be very good packages. I had to use the EPROM programmer Promenade C1 for Commodore 64 to burn these eprom because all my programmers don't support these type of eprom. IDE64 Case Installation: Here is an idea for how to package the IDE64 card so that the circuit board is protected. Hierzu braucht man eine Löschlampe mit passendem UV-Licht. Dunque inserendola nel C64C (già precedentemente preparato con uno zoccolo nella posizione della ROM-kernal originale) con un cavetto ho portato il pin 1 nella posizione del 27. sfx - A patched version of the Commodore RAMDOS BASIC loader that avoids a bug - with JiffyDOS when used on the Commodore 128. These Motorola chip are 100% compatible with the original MOS KERNAL ROM. I have covered this EPROM with a custom printed label. Biete hier meinen kaum gebrauchten C64 Maxi an. What you need is Arduino nano (I got mine from less that 2€ from China), and. The C64 Reloaded allows installing and selecting an alternative Kernal and an alternative character set. Obviously, JiffyDOS is the first OS and stock OS as a second. The remote load function can catch a wide range of different file names and versions. substitute Commodore for PLA fully compatible 64 EPROM ST 8mA with made OTP OTP 8mA made with substitute 64 EPROM compatible Commodore ST PLA for fully. 5 pcs 2364 or 2332 ROM replacement adapter - bare PCBs only Many classic computers use 2364 or 2332 mask ROMs. Get a copy of the original C64 basic ROM. de shop powered by prestashop. Hierzu braucht man eine Löschlampe mit passendem UV-Licht. JiffyDOS is started by default. the second eprom I fill with 2 function roms (I took the 3in1 function rom and the maverick copy tool function rom). DD-001 is a rare 3. This ROM is pin compatible with standard 27(c)128 EPROMs. BackBit Firmware 2. Servant - File manager, disk utilities, solution all in one - no more loading! Turbo Assembler 128 - Want you comfortable programming in assembler, here's solution, but this is real Commodore 64 program. MS-DOS file reader/writer - for the C128 and 1571/81/FD drives. Seems to be a good recreation of the Commodore 64. 19 KB: Website: Downloads: 331. The memory map inside of the EPROM is:. This adapter is a take on such an adapter and is based on the 28C64 / 28C256 EEPROM in PLCC form factor. The EPROM burning was carried out on my TOP853 Universal Programmer that I got cheap on Ebay from China. JiffyDos is the best chip to upgrade if you want speed. s-jiffydos. Page 2-All other Commodore platforms - C64, C128, Plus 4, PET etc. 01 ist, läuft es ohne dieses gar…. The C-128 Kernal provided is the last release for the 128 Flat model. BackBit Firmware 2. You can use this socket for EPROMs limited by capacity 32kB, of course, if you use switcher, there han be e. But it's not problem to save source code and compile, then use in C128 mode. White screen and no keyboard cable. JIFFYDOS 6. JiffyDOS Der bekannte Speedloader für den C128. I found a dump of the original KERNAL (901227-03) that was installed in the breadbin and the latest JiffyDos on the internet. - I poses COMMODORE Diagnostic Cables for AMIGA -16Bit /32Bit and C16, C64, C128 - 8Bit Computers,. JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 or C-128 the disk access speed it has always needed. Furthermore, you need to legitimately own the JiffyDOS kernal for the C64 in order to use this patch. It's related with the cartridge software itself. JiffyDos is the best chip to upgrade if you want speed. Unfortunately, 8 bit sampled sounds are unsuitable for smaller computers, such as the 64, since they are more accurate than can be played on an unmodified 64. The remainder of the address lines are just passed through to the SRAM and EPROM, unprocessed. Ready availability of cheap EPROM programmers. This is the position to insert it. The standard kernel ROM is a 2364 pinout and is 64Kb. * The EPROM programming fee DOES NOT include the EPROM itself. CMD 512K RAMDRIVE: Portable 512 K RAM Disk for the C64/C128 line of computers. Either build a simple eprom adapter or I do believe I have a modern day solution for ya but will cost a tenner (will also need to test first but am positive it will work). Many shops have a suitable PROM and unlike thosch I don't support the argument of "you can erase on failburns" when it comes to a 1541-II JiffyDOS. sfx - Little Red Reader v2. zip 2018-03-07 96798 An MS-DOS program for displaying the memory map of the. with it was a box of parts,motherboards keyboards and a 3. I had to use the EPROM programmer Promenade C1 for Commodore 64 to burn these eprom because all my programmers don't support these type of eprom. I have an adapter similar to the one described above in one of my 1541 floppy drives, with a 27128 and a 2-position switch. It's just poor software quality, faulty, the developers never assured all works. Si nadie tiene una placa para ofrecerme, ¿hay alguien con ganas de tener una montada pero sin carcasa? Puedo pedir una tirada de 10 PCB que sale barato, el resto de componentes ya los tengo. SD2IEC provides much of the functionally a 1541 disk drive, supports fast loaders like JiffyDos, Final Cartridge III and Epyx FastLoad. Avevo visto che molti progetti di modifica del kernal utilizzano le EPROM del tipo 27Cxxx (dove xxx sta per la capacità di memoria della EPROM utilizzata; per un solo kernal, come la ROM originale del C64C, occorrono 128 byte). With JiffyDOS, it's easier to do a perfect. ), Tax Command (Practical Programs), Goofy's Railway Express, Mickey's Runaway Zoo, Donald Duck's Alphabet Chase (Walt Disney Computer Software), MicroLeague Football (MicroLeague Sports Association), James Dionne CBM USA President, Metropolis (Mintel Services), Word Writer 5 (Timeworks), JiffyDOS, GateWay, Bell Term C-64. It is connected via cartridge to the expansion port. Wir benötigen ein EPROM, genauer gesagt ein 2764 mit einer Kapazität von 8Kb auf den der Kernal gespeichert wird. The most suitable format for the 64 is the 4 bit sample. 264829488507. The reason for this is obvious, I think. Conrad Electronic vertrieben. 1541 disk drive manual. Wanting to burn an EPROM to hold the driver code for the Atom MMC interface was the necessity that was the mother of this frightful invention. The I'TM-I Hank-Switching Cartridge can manage up to 25(iK of programs and data. 25″ disk drives for the C64 that I could find were independently developed. But there is solution for the owners of a 1541-II. As you can see on picture, when you uncase REU, there is EPROM socket (highlighted by red on the picture). de] $$$S S$$ $$$$$l. That's easier than to handle it with USB in some cases. As described by Individual Computers, this '…gives some extra space for a second Kernal ROM and a second character set'. WinVICE Commodore 64 emulator. Aktiver/deaktiver eprom. 9 PPC/68060 128M. In a fit of pique I had the idea that I should create a 3-step process: Burn my code into an EEPROM, transfer this to the programmer's buffer, and thence into an EPROM!. 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. 01 - Cartridge Case Commodore 64/128 - white - HDMI2VGA Mini - HDMI VGA Converter , Items 91 - 105. The next thing I wanted to do was get JiffyDOS working on the 1541U-II. Eprom Motorola MCM68766C replaces the C64/VIC-20 Rom August 16th, 2013 xAD / nIGHTFALL Leave a comment Go to comments If you are the lucky owners of these eprom: Motorola MCM 68766C you can do something really cute, hardware permitting. 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. This is essentially how you make a JiffyDOS for a VIC-20/C64 or 1541 drive. JiffyDOS I see that there are two versions for non C-64 machines like the +4 (among many versions) that pertain to NTSC or PAL versions. Neben der oben beschriebenen Kontroverse verhinderten diese Probleme eine Verbreitung der Flash 8 massiv. sfx - A patched version of the Commodore RAMDOS BASIC loader that avoids a bug - with JiffyDOS when used on the Commodore 128. With the ROM layout above, A15 is simply a select line that chooses between kernal or function rom. Ultimamente ha catturato la mia attenzione la modifica del KERNAL del C64. pdf), Text File (. Biete hier meinen kaum gebrauchten C64 Maxi an. Remember JiffyDOS is still copyrighted software. 00 now on eBay and any fool can use the Windows point-and-drool interface to burn the DSR to EPROM. Seems smarter to have a 128 rather than a 64 as a lot of new games being made utilizes the extra speed (2mhz in the borders). Many shops have a suitable PROM and unlike thosch I don't support the argument of "you can erase on failburns" when it comes to a 1541-II JiffyDOS. Dies ließ sich später durch Nutzung von JiffyDOS in einem EPROM auf der Flash 8 umgehen, jedoch war diese Nutzung nicht durch CMD lizenziert worden. When I opened the package szubaark sent, I found 3 EPROM chips, a BASIC ROM chip and a Kickman cart. Se procede a la instalación sobre zócalo del paquete que contiene la EPROM con JiffyDOS y a su conexionado con la placa madre. I've used my MINIPRO TL866 EPROMMER. Tested on VICE 2. Ultimamente ha catturato la mia attenzione la modifica del KERNAL del C64. Created Date: 9/28/2007 12:32:46 PM. Like before, press the middle button and then press F2 to get to the setup menu. Up for sale is one (1) Commodore 64 custom KERNAL ROM burned on a MCM68766C35 EPROM. To switch between them, you will need to either connect the A14 pin to VCC or GND. txt 2018-03-07 12142 Logic equations in Abel format for the 82S100 PLA chip used in the C64 (906114-1), and a JEDEC file that can used to burn a 82S100 as a 906114-1. If its a breadbin then you have a couple of options. Does it work better without JiffyDOS ? Added later: No, it's not related with JiffyDOS. Wir benötigen ein EPROM, genauer gesagt ein 2764 mit einer Kapazität von 8Kb auf den der Kernal gespeichert wird. 5 pcs 2364 or 2332 ROM replacement adapter - bare PCBs only Many classic computers use 2364 or 2332 mask ROMs. This should be 8KB in size. They’re USD$30. I'm using a C64 Kernal for now. Niemals direkt in dieses Licht schauen !. C=Hacking #13 @(#)top. 23C64A to EPROM adapter. Get a copy of the original C64 basic ROM. - In welchen Speicherbereichen müssen die ROMs (C64-Kernel-ROM, JiffyDOS-ROM) - Brennen mit dem universal Programmiergerät TL866 - Lieferumfang des Universal Programmer TL866 / EPROM-Brenner. Sadly, my C128 isn't the prettiest example you might have seen and over the years has succumbed to that horrible yellowing that is common with light colored computers of yesteryear. This information will be used shortly. 25″ disk drives for the C64 that I could find were independently developed. The guys in calibration rigged up JD so it could be disabled with switches, and just boot normal or with warp/fl. Covers a maximum of 5 EPROMS. They had a file cabinet filled with disks you could sign out. readme ramdosii. s$$$$$s All_About_Your_64-Online Help V0. basic-8000. Not only does shift + 7 needs to be send as shift + 7, a number of other keys are mapped positionally, so for example on the top row of the C64, it goes 8 9 0 + -, and on a PC it goes 8 9 0 - =. Most other speeders like e. 9 PPC/68060 + CyberVisio 64/3D + HD 20g + DVD - 4000D in Tower OS 3. Remember JiffyDOS is still copyrighted software. This new ROM is an upgrade to the C64/SX64 (901227-03/251104-04) Kernal or JiffyDOS 6. job done, but if I want the internal 1541 to run at full speed it will also need a new rom. System: Commodore 64; Size: 8. Conrad Electronic vertrieben. Get a 27C256 eprom; Get a copy of the original C64c kernel. bin 2007-06-13 16384 Commodore 128 BASIC V7 ROM. This adapter is a take on such an adapter and is based on the 28C64 / 28C256 EEPROM in PLCC form factor. Das Eprom Zuerst bracht man ein Eprom, das 32 Kilobyte ROM aufnehmen kann. 2 JiffyDOS 128; 3. built by Jens Schönfeld, so that he could read out the PLA with an EPROM programming device. With the ROM layout above, A15 is simply a select line that chooses between kernal or function rom. Wenn man nun zum Beispiel einen Floppy Speeder, wie zum Beispiel JiffyDOS einbauen möchte, so reicht es in den meisten Fällen, nur eines der beiden ROM Bausteinen auszutauschen. EPROM and replace the bad one. sfx A modified version of the Commodore RAMDOS that can make use of expanded REUs up to 2 megabytes. Unfortunately limited Eprom space as well as technical considerations make it quite impractical to save directly into the 4 bit. The next thing I wanted to do was get JiffyDOS working on the 1541U-II. From an old friend I got a vintage SX64 some time ago and decided it needed an upgrade with Jiffydos and SD2IEC. Put JiffyDOS to DIL28 socket and solder Reset (red wire) and Restore (white wire) to R3 pin and +. I have no idea why he would send me spare EPROM chips. Hallo, hat jemand das Pi1541 schon mal zusammen mit dem Turbo Chameleon 64 V2 verwendet? Mit JiffyDos Rom (im Pi1541 und im TC), wenn ich ein Dir aufliste (mit F1), wird die Ausgabe mit zusätzlichen Zeichen "verschönert", bzw. C64 - 1541 - JiffyDOS - CRT Pi16 (Emulation C64 et autres 8 bits dans un boîtier de Commodore 16) Aminitel (Emulation Amiga dans un Minitel portable) CPC 6128 - 3. >edef 78 f7 00 ea >edf3 20 8e ee 09 >edf7 08 00 dd And now Super-C works too. Ein Modul erstellen), möchte ich zumindest in einen C64 + 1541 JiffyDOS einbauen. Covers a maximum of 5 EPROMS. When I opened the package szubaark sent, I found 3 EPROM chips, a BASIC ROM chip and a Kickman cart. Download Gerbers. Type should be 28C128 - someone correct me if I am wrong. Posted on May 23, 2009 March 14, 2012 Categories Software Development Tags JiffyDOS, Software Development. Newest Files. sfx - Little Red Reader v2. Address lines A14 and A13 are used to decode the 32K memory space into 4 8K sections - 0 through 3. The EPROM is a standard 27C256 type, and you should choose a 200ns or faster type. It'll be there forever. Questions about Central Point Deluxe Option board (Sat Jun 29 2002 - 11:09:46 BST) Alex White. Fertige JiffyDOS-Umschalter kann man dort übrigens auch ab $20,- erwerben. 1541 II Floppy with JiffyDOS ; Enterprise SixtyFour (Boxed, Thanks Wilko Schröter!) TI99/4A with CF7+ (Thanks Wilko Schröter for the TI99/4A!) Philips MSX2 (Thanks Wilko Schröter!) Amstrad CPC 464 + 6128 (Thanks Wilko Schröter!). COMMODORE 64 - KERNAL TABLE (901227 KERNAL ROM REPLACEMENT ADAPTER) Hello, This is a tested and working circuit board. Das ist ein 27256 oder 27C256 in der CMOS-Version. Ready availability of cheap EPROM programmers. basic-8000. The accompanying software displays text in English or German. The most popular computer ever sold to-date, the Commodore C-64, sold 27 Million units total back in the 1980’s. It loads off of diskette, and from then on retains JD kernal until batteries are drained, 9volt wall wart included. I had no one to ask so I had to figure it out. The guys in calibration rigged up JD so it could be disabled with switches, and just boot normal or with warp/fl. Local score. The EPROM…. available concurrently with JiffyDOS (you need to pass the JD test to order this option) EPROM has 2 or 3 kernals (CBM, Pwr-Load and if you have a older C64 and the above adaptor a third ROM of your choice - just email it to me). However I also like the silver thumbleswitches to choose the Kernal or cart. That's easier than to handle it with USB in some cases. IDE64 Case Installation: Here is an idea for how to package the IDE64 card so that the circuit board is protected. The guys in calibration rigged up JD so it could be disabled with switches, and just boot normal or with warp/fl. >edef 78 f7 00 ea >edf3 20 8e ee 09 >edf7 08 00 dd And now Super-C works too. + Jim Scabery + 2142 SE 158th + Portland, OR 97233 + (503) 761-2641 (Orders and Information) + Software, disks, and joysticks. C64 roms C64 roms. 1985 version (final upgrade), high part. (Full article text is primarily available beginning with Issue 20. Hier noch mal alle Diskettenlaufwerke im Größenvergleich: <<< zurück | weiter >>>. The Monthly Journal for Commodore Computer Users. Type should be 28C128 - someone correct me if I am wrong. SuperFORTH 64 I/O Utility. This is an exact drop in replacement and does NOT require an adapter socket. Address lines A14 and A13 are used to decode the 32K memory space into 4 8K sections - 0 through 3. It allows me to switch between the classic ROM or a JiffyDOS enabled one. Mar 01, 2020 · It turned out later that it was a silly and blind shot. Turbo Assembler 128 Das EPROM ist nun einsatzbereit und kann auf den U36-Sockel im C128 gesteckt werden. Compatible with GEOS, BASIC, and most 64 or 128 software. I did the same as if it were for a Jiffydos EPROM replacement. COMMODORE 64 - KERNAL TABLE (901227 KERNAL ROM REPLACEMENT ADAPTER) Hello, This is a tested and working circuit board. Replacements have often been made to EPROM chips, but I found that EEPROM works better for me. If its a breadbin then you have a couple of options. 95 plus 10% shipping (15% USA) Taxes are extra for. They operated by trapping an electrical charge on the gate of a field-effect transistor in order to change a 1 to a 0 in memory. Es ist ein Patch für JiffyDOS (JD). To make it more permanent, I burned another JiffyDOS EPROM with a patch at the beginning of the standard kernal UNTLK. Το μόνο που χρειάζεται είναι ένας adapter που βασίζεται στο 74HC74 (ή LS) chip και μια eprom 27C256 στην οποία θα εγγράψουμε το JiffyDOS και το normal kernal του Commodore 64 (ή ότι άλλο θέλουμε ). The Auto Load function automatically executes the LOAD" ",8,1 and RUN commands when you turn on the computer, reset it with a reset switch, or enter a SYS64738 command. See full list on go4retro. bin - please check the supplied txt; Final Cartridge Internal 2764 Eprom. The problem is the 2364 is not compatible with any EPROM pinout unlike the C64c so this adapter is necessary. Instructions are provided if you want to try to build a socket adapter. Die Schritte sollten (zumindest zum größten Teil) eigentlich auch mit anderen Brennern funktionieren. > > Ray Well that is no good :-( I take it you have tried contacting Mark Fellows? If no luck there perhaps he would be more willing to answer questions or provide the information (assuming it's still around) through a licenced distributor of CMD products (like JiffyDOS)? Just a thought. Dolphin DOS ist ein bekannter Schnelllader, den es in verschiedenen Versionen für den C64 und C128 gibt. This adapter is a take on such an adapter and is based on the 28C64 / 28C256 EEPROM in PLCC form factor. Insert the EPROM in the right orientation into the programmer. Das bedeutet, dass wir einen Adapter-Sockel brauchen. Tested on VICE 2. On some shops you may even get close to 2 PROMs for the price of one EPROM. The Jason-Ranheim Company (San Jose / Auburn) was a company which made specialized boards for the Commodore and advertised in all the Commodore magazines of the 1980's and 1990's. Unfortunately, 8 bit sampled sounds are unsuitable for smaller computers, such as the 64, since they are more accurate than can be played on an unmodified 64. More of Brain's gadgets can be seen at his store Retro Innovations. Power up the C-128 again while holding down the Commodore key. Here's my list of systems: Atari 7800 Colecovision NES Super Nintendo Sega Genesis. JiffyDOS is a Disk Operating System (DOS) enhancement which gives your VIC-20, C-16, PLUS/4, C-64, or C-128 the disk access speed it has always needed. First I need to replace the kernal of the C64 and the 1541 part. ajattelin sitten aloittaa toisen uutis kanavan tälle uudelle C64 BBS purkille jonka pistin tuossa viimeviikolla pystyyn vaikka se vielä onkin Beta vaiheessa niin oikeastaan tämä on toisintoa G-Pointin pystyttämiselle. bin+901227-03. Le eprom 27Cxxx sono compatibili con le rom originali Commodore, mentre le 28Cxxx differiscono proprio per questi 2 pin: il pin 1 va ponticellato nella posizione del 27. Instructions are provided if you want to try to build a socket adapter. The EPROM must be supplied by yourself along with your payment. I have also soldered the SD2IEC inside. This information will be used shortly. This is an exact drop in replacement and does NOT require an adapter socket. Bekomme ich da irgendwie einen Schalter dran? Das JiffyDOS-ROM enthält normalerweise ja auch das normale Kernal-ROM und man kann zwischen beiden…. (Full article text is primarily available beginning with Issue 20. 01 - Cartridge Case Commodore 64/128 - white - HDMI2VGA Mini - HDMI VGA Converter , Items 91 - 105. The same method I have used previously to make a dual boot jiffydos eprom for my c64's, totally different implementation obviously. The capacity was a whopping 20 MBytes, which could be extended up to 4 GBytes (remember, we’re still talking the early 90’s here!). Wanting to burn an EPROM to hold the driver code for the Atom MMC interface was the necessity that was the mother of this frightful invention. Got it working great. 9 PPC/68060 128M. Wenn man nun zum Beispiel einen Floppy Speeder, wie zum Beispiel JiffyDOS einbauen möchte, so reicht es in den meisten Fällen, nur eines der beiden ROM Bausteinen auszutauschen. ) Got JiffyDos (hat tip to Jim Brain!) got the BASIC (thx Bo Zimmerman, although one could just take the dump from the 251913 and overwrite it with JiffyDos with a 0x2000 offset) fired up the TL866, and got the dreaded Overcurrent Protection message. with it was a box of parts,motherboards keyboards and a 3. 5″disk drive. This should be 8KB in size. de: willkommen bei cvl-restore. Insert the EPROM in the right orientation into the programmer. Built in JiffyDos and RD DOS. 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. Like before, press the middle button and then press F2 to get to the setup menu. I've used my MINIPRO TL866 EPROMMER. To fit both the original kernel and the JiffyDOS kernel on obviously we need a ROM twice the size. s$$$$$s All_About_Your_64-Online Help V0. The 1541LPTJ version needs a 32 KB EPROM or equivalent. I'll talk more about both of these in later post. JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 or C-128 the disk access speed it has always needed. How to dump the ROM chips of your C64 with an Eprom Reader you can read on serval websites. There is also the very first 1541 JiffyDOS chip and there is an EPROM programmer, that Mark designed and built, used to create the very first JiffyDOS chip with back in 1985. rom but that didn't work. This should be 16KB in size, if its 8KB then that's from the older breadbin C64. 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. The C-128 image consists of both the JiffyDOS 128 code and the original Commodore 128 Kernal ROM (P/N 318020-05). This is the position to insert it. 01 ist, läuft es ohne dieses gar…. - Création de deux adaptateurs 2364 -> 2764, programmation de deux EPROM 2674 (ROM 325302. Jak dorobisz, kompilujesz i bina wciskasz w eprom. floppy serie 1541 (2005) c64 dtv 3 nasce il commodore 64 dentro a un joystick con 30 games incorporati. Remember JiffyDOS is still copyrighted software. Jiffydos, Speeddos, 64er Dos V3. This is an exact drop in replacement and does NOT require an adapter socket. I'll be asking a lot of questions on the next one, putting 4 - 16k games on a 27512 - 64k eprom. It is connected via cartridge to the expansion port. Fitting the Jiffydos kernel will only speed up disk drives with it's own Jiffydos rom installed. All the disk images I have tried work a treat and I didn't expect otherwise as it has Cloanto logos on the box so assume the emulation is based around the Amiga/C64 Forever Cloanto emulators which I have always found to be very good packages. I know the eprom is good because the first games starts witch is actually on the upper side of the eprom. Funktionsfähig. This ROM is pin compatible with standard 27(c)128 EPROMs. bin 2007-06-13 32768 Commodore 128 BASIC V7 ROM, a slightly newer 1985 version from a. They operated by trapping an electrical charge on the gate of a field-effect transistor in order to change a 1 to a 0 in memory. I even upgraded the EPROM to JiffyDOS and PwrLoader! Step-by-Step on how the installation was done. Built in JiffyDos and RD DOS. Sidstnævnte kan ændres hvis man har 2 cartridges samtidigt, det er dog ikke alle den kan spille sammen med. Saved from an EPROM. ro Dos romset. Jiffydos, Speeddos, 64er Dos V3. Hab hier einen C64 mit JiffyDOS. 05 du 1541) et remplacement des ROM d'origine par les EPROM. PiffyDOS-patcher patches your original JiffyDOS and saves the PiffyDOS to disk for later being burned into a EPROM. I clearly got lucky with this one. PiffyDOS-patcher patches your original JiffyDOS and saves the PiffyDOS to disk for later being burned into a EPROM. JiffyDos har de gjort om lite kan man säga, så diskaccessen går mycket snabbare än original. He put the original ROM back in and it works fine. UV-erase EPROM The original erasable non-volatile memories were EPROMs: These could be readily identified by the distinctive quartz window in the centre of the chip package. CMD 512K RAMDRIVE: Portable 512 K RAM Disk for the C64/C128 line of computers. SuperFORTH 64 I/O Utility. When I opened the package szubaark sent, I found 3 EPROM chips, a BASIC ROM chip and a Kickman cart. Versand mit Hermes Päckchen. 5 pcs 2364 or 2332 ROM replacement adapter - bare PCBs only Many classic computers use 2364 or 2332 mask ROMs. When installing JiffyDOS on a Commodore 16 or Plus/4, you might want to retain the ability of switching to the original KERNAL ROM. I intend to ask about x1541 cables and similar devices in the next survey. Ein Modul erstellen), möchte ich zumindest in einen C64 + 1541 JiffyDOS einbauen. The first eprom we fill with the following roms: original basic, original kernal, original basic and jiffydos kernal. IDE64 Case Installation: Here is an idea for how to package the IDE64 card so that the circuit board is protected. 3304936 >>3304759 >baka gajin Western computers Look like OP forgot to remove that shit. Get your copy of JiffyDOS for the C64. Hab diesen selber erst Anfang des Jahres neu,C64 Maxi inkl 2 Joysticks in Hagen - Hagen. $75 in non-working condition. The problem is the 2364 is not compatible with any EPROM pinout unlike the C64c so this adapter is necessary. So no programming was needed. Going to replace it with a JiffyDOS SX-64 ROM. This ROM is pin compatible with standard 27(c)128 EPROMs. s-jiffydos. Please keep in mind that there is a difference between PAL and NTSC kernal roms. So for an SD2IEC this is fine. ** The shipping charge applies worldwide. Got it working great. Remember JiffyDOS is still copyrighted software. * The EPROM programming fee DOES NOT include the EPROM itself. Either build a simple eprom adapter or I do believe I have a modern day solution for ya but will cost a tenner (will also need to test first but am positive it will work). To use this feature, you need to program your own EPROM with the new contents. Hierzu braucht man eine Löschlampe mit passendem UV-Licht. prg - 80 column Quick Texteditor. These Motorola chip are 100% compatible with the original MOS KERNAL ROM. It has 64 games built in being a mixture of C64 and Vic20 games. >edef 78 f7 00 ea >edf3 20 8e ee 09 >edf7 08 00 dd And now Super-C works too. The Jason-Ranheim Company (San Jose / Auburn) was a company which made specialized boards for the Commodore and advertised in all the Commodore magazines of the 1980's and 1990's. If it is a 16KB rom then it may be one for a 1541-II or 1541-II, where both hi and lo roms have been added to one 16KB rom. I even upgraded the EPROM to JiffyDOS and PwrLoader! Step-by-Step on how the installation was done. Sett fra prosessoren og operativsystemet (Basic) sin side så er ROM alltid plassert på adressene fra $0000 til $1FFF - jumperne på modulen lar deg avgjøre hvilket 8K vindu innenfor EPROM-modulen. Niemals direkt in dieses Licht schauen !. C64 - 1541 - JiffyDOS - CRT Pi16 (Emulation C64 et autres 8 bits dans un boîtier de Commodore 16) Aminitel (Emulation Amiga dans un Minitel portable) CPC 6128 - 3. Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/tomse. Hier noch mal alle Diskettenlaufwerke im Größenvergleich: <<< zurück | weiter >>>. Adressering Var i utgangspunktet litt usikker på hvor denne skulle plasseres innenfor minnet, se RC2014 Memory Map, ettersom modulen har jumpere for konfigurering innenfor et 64K adresser-rom. Commodore's low-level Operatin System was named the Kernal. With JiffyDOS, it's easier to do a perfect. Breadbin or 64c? if its 64c then its a doddle and can supply it for nowt. It is connected via cartridge to the expansion port. You can load up your binary BASIC code inside MiniPro and burn it onto the EPROM. Eprom Motorola MCM68766C replaces the C64/VIC-20 Rom August 16th, 2013 xAD / nIGHTFALL Leave a comment Go to comments If you are the lucky owners of these eprom: Motorola MCM 68766C you can do something really cute, hardware permitting. The motherboard provides A[13:0], but I need to generate the 27512's A14 and A15 signals somehow. 5" externe - CTM644 ATARI 520 STF "stock" TO7/70 - Ext 16Ko Emulation sur PC, PS1, PS2, PS3, PSP, Gamecube, Wii. JiffyDOS does require removing two ROM chips and replacing them with EPROMs, so it is not a solution for everyone. 9 PPC/68060 + CyberVisio 64/3D + HD 20g + DVD - 4000D in Tower OS 3. Eprom Motorola MCM68766C replaces the C64/VIC-20 Rom August 16th, 2013 xAD / nIGHTFALL Leave a comment Go to comments If you are the lucky owners of these eprom: Motorola MCM 68766C you can do something really cute, hardware permitting. The 1541-II uses a single 16k 23128 type ROM. 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. As described by Individual Computers, this '…gives some extra space for a second Kernal ROM and a second character set'. PLA substitute for Commodore 64 made with ST OTP EPROM fully compatible 8mA PLA substitute for: $11. Tak więc przepisujesz te 8KB kodu i kompilujesz, a potem patrzysz gdzie jest wolne miejsce, czy co wywalić, z czego zrezygnować i dorabiasz sobie polecenia, jakie zaplanowałeś. This is number 901226-01. Posted on May 23, 2009 March 14, 2012 Categories Software Development Tags JiffyDOS, Software Development. Get a 27C256 eprom; Get a copy of the original C64c kernel. JiffyDOS is a Disk Operating System (DOS) enhancement which gives your VIC-20, C-16, PLUS/4, C-64, or C-128 the disk access speed it has always needed. 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. The basic Fast Loader was the Epyx cartridge. de] $$$S S$$ $$$$$l. Dos romset - cheresteabistrita. On some shops you may even get close to 2 PROMs for the price of one EPROM. First, grab the ROM images: JiffyDOS 128 & C128 Kernal JiffyDOS 64 & 64 BASIC/Kernal These two binary files have been created for use with a 27C256 or 27256 EPROM. The remote load function can catch a wide range of different file names and versions. In addition, JiffyDOS-equipped disk drives can be used with stock C64 and C128 computers, if necessary. First I need to replace the kernal of the C64 and the 1541 part. The 1541LPTJ version needs a 32 KB EPROM or equivalent. 5 floppy disk drive for C64, manufactured by UK company TIB PLC in 1991. Standard Kernal+JiffyDOS. ajattelin sitten aloittaa toisen uutis kanavan tälle uudelle C64 BBS purkille jonka pistin tuossa viimeviikolla pystyyn vaikka se vielä onkin Beta vaiheessa niin oikeastaan tämä on toisintoa G-Pointin pystyttämiselle. Thanks for the add. Hallo, hat jemand das Pi1541 schon mal zusammen mit dem Turbo Chameleon 64 V2 verwendet? Mit JiffyDos Rom (im Pi1541 und im TC), wenn ich ein Dir aufliste (mit F1), wird die Ausgabe mit zusätzlichen Zeichen "verschönert", bzw. - In welchen Speicherbereichen müssen die ROMs (C64-Kernel-ROM, JiffyDOS-ROM) - Brennen mit dem universal Programmiergerät TL866 - Lieferumfang des Universal Programmer TL866 / EPROM-Brenner. Dolphin dos for the Commodore 64 Drive alignment software Assembler 64 One of the first datasettes for the Commodore 64, different logo Test harness for the Commodore 64 Some new books Another SSI Gold box and for the …. Har tidigare lött in ett större EPROM i datorn, med tillhörande switch, så jag kan välja mellan några olika Kernels. The EPROM burning was carried out on my TOP853 Universal Programmer that I got cheap on Ebay from China. Built in JiffyDos and RD DOS. He bought another JiffyDOS ROM, installed it in 2 nd machine and gets a garbage screen. Dieser enthielt die Platine sowie Laufwerksmechanik des ebenfalls nie zur Serienreife gebrachten 3½-Zoll-Diskettenlaufwerks VC1563 mit eigenem, bereits für die spätere VC1581 programmierten Diskettenbetriebssystem auf einem provisorischen EPROM-Chip, eine stark modifizierte Hauptplatine, mehrere improvisierte Zusatzplatinen, ein. This should be 8KB in size. Reset Heroes & Cowards - Reset Reloaded - Caren and the Tangled Tentacles Fergus McNeill - #08 - Daffy Duck D42 Adventure System Reset #08 The magazine for the. Firstly a SD2IEC storage device and secondly a JiffyDOS eprom. The drive had an internal 6502A CPU, 64 KBytes of RAM and an EPROM containing the bootsystem for the drive. de] $$$S S$$ $$$$$l. Finally, the user could install a CBM-DOS replacement like JiffyDOS in their 1541 and their C64 for speed transfers up to fifteen times faster than the stock ROMs. Auch beschriebene Eproms lassen sich löschen und neu beschreiben. nei miei commodore ho messo le eprom Jiffydos e sono abituato a velocita almeno 10 volte superiori, con 64HDD Free sembra essere tornati ai vecchi tempi, 202 blocchi in 2 minuti!!!. These Motorola chip are 100% compatible with the original MOS KERNAL ROM. Posted on May 23, 2009 March 14, 2012 Categories Software Development Tags JiffyDOS , Software Development. 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. See full list on go4retro. You can use this socket for EPROMs limited by capacity 32kB, of course, if you use switcher, there han be e. Adoreware proudly introduces the newly developed Auto Load Kernal ROM for the Commodore 64/SX64. SuperFORTH 64 I/O Utility. Lo bueno -si no me equivoco- es que se le puede meter jiffydos y ya tenemos cartucho acelerador de SD2IEC barato (No se puede). JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 or C-128 the disk access speed it has always needed. Up for sale is one (1) Commodore 64 custom KERNAL ROM burned on a MCM68766C35 EPROM. The ROM's in the C64 and the original 1541 models are 24 pin and are not directly pin compatible with burnable 2732 or 2764 EPROMS. Ready availability of cheap EPROM programmers. 19 KB: Website: Downloads: 331. Wir benötigen dazu einen 28poligen und einen 24poligen Sockel. This is the position to insert it. Posted on May 23, 2009 March 14, 2012 Categories Software Development Tags JiffyDOS, Software Development. The C-128 Kernal provided is the last release for the 128 Flat model. The first eprom we fill with the following roms: original basic, original kernal, original basic and jiffydos kernal. Description. It has 64 games built in being a mixture of C64 and Vic20 games. es sind mitten im Text…. A great example of this is the new Super Mario Bros that was released a few weeks back. First I gently removed the original ROM IC from the board and placed the chip in the programmer. Example: use this EPROM like a ROM for some Devices and Computers Commodore without using an adapter ;-D. Jul 15, · SD2IEC Compared to a Disk Drive Getting Started with the SD2IEC (Unofficial SD2IEC Manual) When you receive your SD2IEC you’ll notice it only comes with a single sheet of paper with some very basic instructions, rather than a full SD2IEC manual as you might expect of a. JIFFYDOS 6. The PLCC form factor allows the EEPROM to be socke. D1, D2, D3 diode Any EPROM prgrammer should do it, as far as it is capable to read 28C64 The main difference between the 2364 and the ROMs used in the 9845 is that the 21 Feb 2016 -TI TMS-2564 EPROM (Was previously incorrectly listed with the 2364 family) - 1702 EPROM Family: (1601, 1602, 1702, 1702A) -2704 EPROM 5 Aug 2016 2364 to 27C256 adapter w/switchless solution for the C64 with. The diagnostic cart I had bought also arrived that same week luckily. I have covered this EPROM with a custom printed label. I'm using a C64 Kernal for now. I found a dump of the original KERNAL (901227-03) that was installed in the breadbin and the latest JiffyDos on the internet. My JiffyDOS chip for the 1571D (internal drive of the 128D-CR) also came without a chip, on a 27(c)256 EPROM, so there is only one set of firmware on the chip. Some supposedly just shipped with the exact Commodore code for a while, until Commodore threatened to sue them, so they obfuscated their use of the copyrighted material. The socket adapter re-wires the 2764 EPROM to that required by the 24-pin socket. Questions about Central Point Deluxe Option board (Sat Jun 29 2002 - 11:09:46 BST) Alex White. The advertisement says something that this chip is auto-switching, but I'm sure now this is some sort of marketing bla-bla, in reality there is only JiffyDOS inside, and you lose the CBM DOS. Publisher's Remarks; Selecting and Developing Small Business Systems — Potential & Pitfalls. First thing I did was take my JiffyDos 1541-II binary and copy it to the ROOT of my SDcard and put it back in the 1541U-II cartridge. Does it work better without JiffyDOS ? Added later: No, it's not related with JiffyDOS. 9 68060 ram 32m + ram scheda 2+16M + HD 20g + zip 100 ide + DVD + V-lab + Seriale veloce + Scheda video EGS- 3000T OS 3. Er wurde von Jan Bubela und Gunther Jilg entwickelt und in Deutschland im Eigenvertrieb unter dem Firmennamen Dolphin DOS-Vertrieb und einigen Zwischenhändlern wie z. The remote load function can catch a wide range of different file names and versions. Niemals direkt in dieses Licht schauen !. I'm using a 27c256 32k eprom, the binary file is 32768 in size. Man kan programmere 8-256kB EPROM moduler, med 8/16kB. Use 251913-01 ROM or combine basic and kernal yourself: REM ** CBM C64E ROM ** copy /b 901226-01. Standard engelsk ROM, svensk ROM, och “JiffyDos”. I have an adapter similar to the one described above in one of my 1541 floppy drives, with a 27128 and a 2-position switch. WinVICE Commodore 64 emulator. Created Date: 9/28/2007 12:32:46 PM. DD-001 is a rare 3. Buy Vintage Computers & Mainframes and get the best deals at the lowest prices on eBay! Great Savings & Free Delivery / Collection on many items. 0, 1530 Cassette Unit, TAPuino, Amstrad CPC6128 - M4 - 512KB RAM - Gotek USB Floppy. To minimize manual manufacturing processes inherent in the current EPROM-based JiffyDOS offerings, my goal is to utilize the ROM-el EEPROM/FLASH solution for JiffyDOS hardware offerings. You can use this socket for EPROMs limited by capacity 32kB, of course, if you use switcher, there han be e. built by Jens Schönfeld, so that he could read out the PLA with an EPROM programming device. bin 2007-06-13 32768 Commodore 128 BASIC V7 ROM, a slightly newer 1985 version from a. For anyone wishing to modify their Turbo Master EPROM using my suggested patch, it is laid out as follows: 0000 - 1fff 8 kilobytes of BASIC. It is connected via cartridge to the expansion port. 23C64A to EPROM adapter. they were pencil numbered #36 and#37. $75 in non-working condition. I've used my MINIPRO TL866 EPROMMER. Ultimamente ha catturato la mia attenzione la modifica del KERNAL del C64. One last thing I noticed that some of these RL's would not always show up with the JiffyDOS opening screen when the computer was. Wir benötigen dazu einen 28poligen und einen 24poligen Sockel. prg - 80 column Quick Texteditor. Das ist ein 27256 oder 27C256 in der CMOS-Version. Ready availability of cheap EPROM programmers. The original ROM chips used in the C64 and 1541 (not the C64C, 1541C, 1541-II or 1571) have a non-standard 24-layout pin and the 2764 EPROM will not fit into its socket as it is a 28 pin device. Step-by-Step on how the installation was done. On some shops you may even get close to 2 PROMs for the price of one EPROM. The timing is exactly the same as the original ROM and is guaranteed to work in your Commodore 64. 22 also, with JiffyDOS Kernal and JiffyDOS C1541 ROM. Plenty av touchy-feely stuff der, så måtte legge til en seksjon for de hardere tingene i livet. Little is left to show of those times, the 8-bit “retro” years when a young. ajattelin sitten aloittaa toisen uutis kanavan tälle uudelle C64 BBS purkille jonka pistin tuossa viimeviikolla pystyyn vaikka se vielä onkin Beta vaiheessa niin oikeastaan tämä on toisintoa G-Pointin pystyttämiselle. Turn the C-128 OFF, and then place the selector switch in its other position. de shop powered by prestashop. For anyone wishing to modify their Turbo Master EPROM using my suggested patch, it is laid out as follows: 0000 - 1fff 8 kilobytes of BASIC. I had to use the EPROM programmer Promenade C1 for Commodore 64 to burn these eprom because all my programmers don't support these type of eprom. Put JiffyDOS to DIL28 socket and solder Reset (red wire) and Restore (white wire) to R3 pin and +. C64 roms C64 roms. The PLCC form factor allows the EEPROM to be. Og så en ROM sokkel. Wir benötigen ein EPROM, genauer gesagt ein 2764 mit einer Kapazität von 8Kb auf den der Kernal gespeichert wird. The 1541 was the standard floppy disk drive for the Commodore 64, with nearly all disk-based software programs released for the computer being distributed in the 1541 compatible floppy disk format. Noen tegn til idealisme, pessimisme og filosofering rundt livet må du nesten regne med. It's just poor software quality, faulty, the developers never assured all works. Software drive swap between drive 8 and 9, defaults to 16. Does it work better without JiffyDOS ? Added later: No, it's not related with JiffyDOS. 25″disk drive. This is an exact drop in replacement and does NOT require an adapter socket. So, it does seem that his second C128 machine does not play nice with JiffyDOS. But it's not problem to save source code and compile, then use in C128 mode. Back in the eighties, an EPROM burner was a valuable device. 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. Power up the C-128 again while holding down the Commodore key. C64 eller C128 game mode. (Taxaid Software Inc. 22 also, with JiffyDOS Kernal and JiffyDOS C1541 ROM. These Motorola chip are 100% compatible with the original MOS KERNAL ROM. The EPROM must be supplied by yourself along with your payment. I even upgraded the EPROM to JiffyDOS and PwrLoader! Step-by-Step on how the installation was done. Jul 15, · SD2IEC Compared to a Disk Drive Getting Started with the SD2IEC (Unofficial SD2IEC Manual) When you receive your SD2IEC you’ll notice it only comes with a single sheet of paper with some very basic instructions, rather than a full SD2IEC manual as you might expect of a. It is connected via cartridge to the expansion port. 5" externe - CTM644 ATARI 520 STF "stock" TO7/70 - Ext 16Ko Emulation sur PC, PS1, PS2, PS3, PSP, Gamecube, Wii. Get a 27C256 eprom; Get a copy of the original C64c kernel. File Formats. restore-store. Jak dorobisz, kompilujesz i bina wciskasz w eprom. prg - Create automatically starting versions of BASIC programs. Does it work better without JiffyDOS ? Added later: No, it's not related with JiffyDOS. Adoreware proudly introduces the newly developed Auto Load Kernal ROM for the Commodore 64/SX64. 9 PPC/68060 Ram 128M + ram scheda 2+16M + zip 100M + Ide HD 40G + usb Deneb + V-Lab + Toccata + Mediator con: Woodoo 3 + Scheda rete + Impact Vision 24 - 4000D OS 3. Questions about Central Point Deluxe Option board (Sat Jun 29 2002 - 11:09:46 BST) Alex White. Leider sind diese nicht Pinkompatibel. I set internal or external ROM in VICE and at start in VIC screen was all working correctly. Does it work better without JiffyDOS ? Added later: No, it's not related with JiffyDOS. This is an exact drop in replacement and does NOT require an adapter socket. An alternative would be a 6502-based microcontroller, to get more I/O lines without using external chips. sfx - A patched version of the Commodore RAMDOS BASIC loader that avoids a bug - with JiffyDOS when used on the Commodore 128. It allows me to switch between the classic ROM or a JiffyDOS enabled one. On this page I will describe some exeriments with dumping the kernal ROMs of a Commodore 64, and making some small modifications. It first appeared as an electronics project in 64'er Magazine, special issue 84. Download Gerbers. MS-DOS file reader/writer - for the C128 and 1571/81/FD drives. :) The method is the same, just add additional pull-up resistors and switches. I’ve bought all the needed files from guys running Retro Innovations and was ready to burn. - Création de deux adaptateurs 2364 -> 2764, programmation de deux EPROM 2674 (ROM 325302. This is the position to insert it. This should be 8KB in size. Eprom Motorola MCM68766C replaces the C64/VIC-20 Rom August 16th, 2013 xAD / nIGHTFALL Leave a comment Go to comments If you are the lucky owners of these eprom: Motorola MCM 68766C you can do something really cute, hardware permitting. Newest Files. + Jim Scabery + 2142 SE 158th + Portland, OR 97233 + (503) 761-2641 (Orders and Information) + Software, disks, and joysticks. JR sold a variety of eprom related products for the VIC-20 circa 1983, and produced the Promenade C1 EPROM programmer. I even upgraded the EPROM to JiffyDOS and PwrLoader! Step-by-Step on how the installation was done. basic-8000. The I'TM-I Hank-Switching Cartridge can manage up to 25(iK of programs and data. I'd rather sell JiffyDOS copies than fake SIDs. The Monthly Journal for Commodore Computer Users. Back in the eighties, an EPROM burner was a valuable device. C64 cia replacement. built by Jens Schönfeld, so that he could read out the PLA with an EPROM programming device. 01 - Cartridge Case Commodore 64/128 - white - HDMI2VGA Mini - HDMI VGA Converter , Items 91 - 105. To minimize manual manufacturing processes inherent in the current EPROM-based JiffyDOS offerings, my goal is to utilize the ROM-el EEPROM/FLASH solution for JiffyDOS hardware offerings. I mean, it doesn't take much to realize they are toast and have the buyer after you asking for a refund. The drive had an internal 6502A CPU, 64 KBytes of RAM and an EPROM containing the bootsystem for the drive. Günther finally figured out that when reading a complete data track during a single revolution of the disk in the disk drive a tremendous speed up could be gained. 00 now on eBay and any fool can use the Windows point-and-drool interface to burn the DSR to EPROM. The kernel of the 1541 is also 8K, so the approach is the same.