Category:Kernal ROM: Difference between revisions
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''KERNAL'' ('''K'''eyboard '''E'''ntry '''R'''ead, '''N'''etwork, '''A'''nd '''L'''ink) is the name of the ROM chip containing the base system code for the C64 (and most other Commodore 8-bit computers). On the C64 the Kernal is mapped from $E000 - $FFFF and contains all kind of I/O-routines for keyboard, printers, RS-232, screen, tape and drives. There have been several versions of the kernal ROM for the C64 which usually contained smaller bug fixes. For details regarding the kernals' internal routines please check the weblinks. | [[File:Datel_4way_Kernal_Board_Advert.jpg|right]] ''KERNAL'' ('''K'''eyboard '''E'''ntry '''R'''ead, '''N'''etwork, '''A'''nd '''L'''ink) is the name of the ROM chip containing the base system code for the C64 (and most other Commodore 8-bit computers). On the C64 the Kernal is mapped from $E000 - $FFFF and contains all kind of I/O-routines for keyboard, printers, RS-232, screen, tape and drives. There have been several versions of the kernal ROM for the C64 which usually contained smaller bug fixes. For details regarding the kernals' internal routines please check the weblinks. | ||
What makes the kernal for us a thing of major interest is the availability of replacements usually removing tape support and adding fast load, monitor or changed reset routines next to a few other features. Replacing the Kernal can be done by either adding a Kernal switch board to the C64 which allows toggling between several Kernals or by inserting a cartridge which replaces the Kernal. Of course when using the cartridge solution it might pose difficult to run e.g. a ''Freezer'' cartridge in parallel. | What makes the kernal for us a thing of major interest is the availability of replacements usually removing tape support and adding fast load, monitor or changed reset routines next to a few other features. Replacing the Kernal can be done by either adding a Kernal switch board to the C64 which allows toggling between several Kernals or by inserting a cartridge which replaces the Kernal. Of course when using the cartridge solution it might pose difficult to run e.g. a ''Freezer'' cartridge in parallel. | ||
Kernal replacements such as [[Speed DOS]], [[ | Kernal replacements such as [[Speed DOS]], [[JiffyDOS]] or [[Exos]] usually work quite well together with a multifunction cartridge on the expansion port but of course there can be incompatibilities (which we love to document here whenever we are getting aware of them). | ||
Some of the Kernal replacements will require a new ROM on the disk drive, a parallel cable or even an add-on board to speed up the disk drive but usually should operate at normal speed whenever the drive contains the standard ROM. The related articles as well as [[:Category:Related Hardware|Related Hardware]] should resolve any remaining questions. | Some of the Kernal replacements will require a new ROM on the disk drive, a parallel cable or even an add-on board to speed up the disk drive but usually should operate at normal speed whenever the drive contains the standard ROM. The related articles as well as [[:Category:Related Hardware|Related Hardware]] should resolve any remaining questions. | ||
| Line 9: | Line 9: | ||
Mostly done are: | Mostly done are: | ||
* [[Cockroach Turbo ROM]] | * [[Cockroach_Turbo-ROM|Cockroach Turbo-ROM]] | ||
* [[ | * [[Exos]] | ||
* [[Turbo ROM II]] | * [[Turbo ROM II]] | ||
* [[Dolphin DOS]] | * [[Dolphin DOS]] | ||
| Line 16: | Line 16: | ||
In the works: | In the works: | ||
* [[ | * [[JiffyDOS]] | ||
* [[Prologic DOS]] | * [[Prologic DOS]] | ||
* [[Speed DOS]] | * [[Speed DOS]] | ||
* [[TurboAccess]] | * [[TurboAccess]] includes ''TurboTrans'' | ||
* [[:Category:Professional DOS|Professional DOS]] is somewhat external. | * [[:Category:Professional DOS|Professional DOS]] (including ''RapiDOS'' and DiskDemon/DemonDOS) is somewhat external. | ||
Latest revision as of 16:39, 9 May 2013
KERNAL (Keyboard Entry Read, Network, And Link) is the name of the ROM chip containing the base system code for the C64 (and most other Commodore 8-bit computers). On the C64 the Kernal is mapped from $E000 - $FFFF and contains all kind of I/O-routines for keyboard, printers, RS-232, screen, tape and drives. There have been several versions of the kernal ROM for the C64 which usually contained smaller bug fixes. For details regarding the kernals' internal routines please check the weblinks.
What makes the kernal for us a thing of major interest is the availability of replacements usually removing tape support and adding fast load, monitor or changed reset routines next to a few other features. Replacing the Kernal can be done by either adding a Kernal switch board to the C64 which allows toggling between several Kernals or by inserting a cartridge which replaces the Kernal. Of course when using the cartridge solution it might pose difficult to run e.g. a Freezer cartridge in parallel.
Kernal replacements such as Speed DOS, JiffyDOS or Exos usually work quite well together with a multifunction cartridge on the expansion port but of course there can be incompatibilities (which we love to document here whenever we are getting aware of them).
Some of the Kernal replacements will require a new ROM on the disk drive, a parallel cable or even an add-on board to speed up the disk drive but usually should operate at normal speed whenever the drive contains the standard ROM. The related articles as well as Related Hardware should resolve any remaining questions.
Mostly done are:
In the works:
- JiffyDOS
- Prologic DOS
- Speed DOS
- TurboAccess includes TurboTrans
- Professional DOS (including RapiDOS and DiskDemon/DemonDOS) is somewhat external.
Weblinks
- AAY64 contains a documented and linked up KERNAL ROM listing
- zimmers.net has most standard KERNAL ROM versions
- Commodore KERNAL at english Wikipedia
- Commodore KERNAL at english c64-wiki
- Commodore KERNAL at german c64-wiki
Subcategories
This category has the following 9 subcategories, out of 9 total.
Pages in category "Kernal ROM"
The following 2 pages are in this category, out of 2 total.
Media in category "Kernal ROM"
The following 4 files are in this category, out of 4 total.
Datel 4way Kernal Board Advert.jpg 232 × 375; 43 KB
Kernal ROM all rr.c64.org 2021-02.rar ; 54.33 MB
Kernal-Cartridge Howto.pdf 0 × 0; 630 KB
Rockus Eprom loeschen.jpg 1,063 × 385; 265 KB
