Rear Admiral (Additional Information)
on 10 Aug 2011
The All-New Rear Admiral HyperDrive™ Systemby:  MyTec Electronics"The Ultimate Hard Disc Solution for Commodore 64 (and 128) Personal Computers"(AKA: The Lt. Kernal - II)Complete Rear Admiral HyperDrive™ SystemEVERYTHING YOU NEED IS INCLUDED:160MB HyperDrive™ Hard Disc Unit,  Host Adaptor, RA DOS v7.3 Installation Disk,  Owner's Manual (PDF), All Connection Cables, and Ready-To-Go...Plus Exclusive "System Enhancements" are now available from MyTec Electronics - See Below for Available OptionsThis System is 100% Compliant with the Xetec Lt. Kernal Hard Drive System and Surpasses the original design specifications. Completely Redesigned Host Adaptor, Internal Logic, and DOS are More Powerful, Feature Packed, and Easy to [read more]
Rear Admiral (Lt. Kernal Clone)
on 10 Aug 2011
The Rear Admiralby Jeff J., Designer/Author of the Rear Admiral HyperDrive System released in 2010[The Rear Admiral] not a "cartridge" - It's a complete SCSI System Host Adaptor & Hard Drive with an incredibly powerful operating system. It's also the only product for 64/128 computers that provides simultaneous multiplexing of all data on the hard drive between multiple computers. The DOS provides so many features and operates in less time that in takes to blink your eyes. It also supports "real" Relative (and all other) format files and can run nearly anything in the very same way that any [read more]
How to get a fast 2x2-FLI routine
on 20 Jul 2011
How to get a fast 2x2-FLI routine by Wolfram Sang (Ninja/The Dreams - ====================================================== Shortly before X2004, Oswald/Resource asked me if I could do a 2x2-FLI routine, which is fast enough to have some extra cycles for the main routine while displaying the FLI. That was an interesting problem, so maybe the things I came up with may be inspiring for you, too. To see the routine in action, have a look for the demo "REAL" by Resource and The Dreams. If it wasn't for such a routine, no one would probably have dared to do a tunnel and the julia-effect in such a resolution, because it would have [read more]
C64 Memory Map
on 13 Jul 2011
C64 Memory Map
Commodore 64 memory map Commodore 64 memory map Address(hex, dec)Description $0000-$00FF, 0-256Zero page $00000 Processor port data direction register. Bits: Bit #x: 0 = Bit #x in processor port can only be read; 1 = Bit #x in processor port can be read and written. Default: $2F, %00101111. $00011 Processor port. Bits: Bits #0-#2: Configuration for memory areas $A000-$BFFF, $D000-$DFFF and $E000-$FFFF. Values: %x00: RAM visible in all three areas. %x01: RAM visible at $A000-$BFFF and $E000-$FFFF. %x10: RAM visible at $A000-$BFFF; KERNAL ROM visible at $E000-$FFFF. %x11: BASIC ROM visible at $A000-$BFFF; KERNAL ROM visible at $E000-$FFFF. %0xx: Character ROM visible at $D000-$DFFF. (Except for the value %000, see above.) %1xx: I/O area visible [read more]
SID File Format Information
on 13 Jul 2011
This document describes the SID file format used for SID tunes in the HVSC
(High Voltage SID Collec[...]
=========================== SID FILE FORMAT DESCRIPTION =========================== AUTHORS: Michael Schwendt (PSID v1 and v2) Simon White (PSID v2NG, RSID) Dag Lem (PSID v2NG) LaLa (This document) INTRODUCTION ============ This document [read more]
Starting to Program in 6502 Assembly Code by M.J. Malone
on 27 Oct 2010
Nice introduction to 6502 programming
==================================================================== DR 6502 AER 201S Engineering Design 6502 Execution Simulator ==================================================================== Supplementary Notes By: M.J.Malone Starting to Program in 6502 Assembly Code ========================================= [read more]
uIEC/SD Geos / DNP
on 20 Oct 2010
Instructions on how to use a DNP image with the uIEC/SD to run GEOS / Wheels
Put the fakerom in the root of the DNP and issue this command every time before you run Geos / Wheels: @"XR:FAKEHD.BIN" [read more]
Memory expansions for the Commodore 64
on 15 Oct 2010 print the content item create pdf file of the content item
Commodore 64 becomes remarkably more efficient by adding memory to it. Then the worst slow-down, inc[...]
Attached is a PDF on how to add memory to the Commodore 64.In 1986, when the original article was written, there were no commercial memory extensions for sale in Finland.1Of course there were some in the USA, but they were quite useless, as they had only 64 kB of memory, and theprice was high as well. When built by oneself, the following memory expansion should have costed 300–400 Finnishmarks. [read more]
Null Modem Cable (for TCPSER)
on 13 Oct 2010
Pinouts for Null modem cable
The magic pinouts to get the PC program TCPser to work with a Swiftlink / Turbo 232. [read more]
C64 Assembler Tutorial
on 27 Sep 2010
This tutorial is intented for newbies who wanna code c64 assembler for the first time, aswell as oldies who want to get it freshened up after years of lameness... I will try to write it as softcore/easy as possible, so everyone should have a chance to try out the magical world of C64 machine code/assembler. If you get hooked and want to learn more I can recommend the chapter "Basic to Machine Language" from the good old C64 Programmers Reference Guide, which can be found online right here on C64.CH First of all, to give the newbies an idea of what [read more]