Commodore plus 4 memory map software

The random access memory ram, readonly memory rom, and interface hardware chips in your commodore 128 are like postal stations with hundreds of thousands of mailboxes, each of which can hold a single character, or byte of information. The plus4 was incompatible with the commodore 64s software and some of its hardware. The commodore plus4 was a home computer released by commodore international in 1984. The result of all this turmoil was the commodore plus4 a high spec machine. View and download commodore plus4 user manual online. The commodore plus4 was a home computer released in 1984 the plus4 name refers to the fourapplication rom resident office suite word processor, spreadsheet, database, and graphing. Of course, that sacrified the larger memory amount of the commodore plus4, that could offer better games than the commodore 16. Builtin acia 6551 but without real rs232 driver chips commodore did a lot. With multipaint, you can draw pictures with the color limitations of some typical 8bit computer platforms. Commodore plus4 screen memory map display ram the wp. This weekend i picked up my first ever home computer once again. With these you will be able to dial into old school c64128 bbs that have been converted to telnet from dialup. We are open and shipping daily but expect delivery delays.

Dec 14, 2015 the keyboard on the commodore plus4 is connected via an unusual flat flex cable with thin wires in. The original commodore business machines plus4 docs. Svs improved his memory map for the commodore c16, c116 and the plus 4. Of course, we understand the busy lifestyle of todays average plus 4 enthusiast and were here to help. Additional details on our covid19 information page. This section contains releases for the commodore c16 and plus 4 range of computers. Commodore plus4 screen memory map display ram the wp guru.

It wasnt a difference in memory map that solely accounted for the big difference in basic memory between the 64 and the plus 4. I have made it possible to convert the unreliable 8501 processor fitted to the commodore 16 and plus 4 to the more reliable, cheaper and widely available 6510, as fitted to the commodore 64. The key area were emphasizing in software for the commodore 264 is. This book is a map of all of those memory locations, but its more than just a list of addresses. The commodore plus 4 was introduced as a business computer. This computer was essentially the same as a commodore 16 inside also with 16k of memory, but in a smaller case similar to that of the plus4 and with chickletstyle rubber keys. The plus 4 was similar to the c16 and c116, and it belonged to the commodore 264 series, which were all software compatible. View online or download commodore plus 4 service manual. Its been in my folks attic for a few decades but still works just fine. The plus 4 name refers to the fourapplication rom resident office suite word processor, spreadsheet, database, and graphing.

Comparing elite on commodore 64 plus 4 n elite 128 for c128 in c64 mode. It had some success in eastern europe, but was less popular in western europe. Commodore produced about 827,000 units worldwide, with about 286,500 sold in germany. Programs are of course upward compatible from previous commodore basic releases but both the user and the programmer can enjoy new features of 4. The plus 4 has buildin software wordprocessor, spreadsheet, database and a graphical program, a userport and has more memory than the c16 or c116. Please note that a 64k memory expansion unit is required for these games to run on a c16 system. Here youll find new and used hardware, software and accessories, games, educational programs, joysticks, power supplies, cables, books, graphics, public domain and shareware programs and and all sorts of other items which you probably thought werent available anymore. Has been in climate controlled storage for a few years.

Commodore c16 c116 plus 4 emulators zophars domain. Although the hardware for the ntsc and pal versions of this computer are nearly the same, there is a substantial library of software for this computer which only runs properly on one or the other variant. The built in software was rubbish but i had a word processor cartridge that was pretty good and i wrote a book on it. Commodore 64 games and software and commodore 128 and 64. The memory map of the 264 series is similar to the c64 but somewhat more. The commodore plus4 is a home computer released by commodore international in 1984. I had both a commodore 16 and a plus4 back when they came out.

Also, yapesdl was moved to codeplex the open source project hosting site and from now on announcements about the sdl port will be made there. Newest memorylayout questions retrocomputing stack. These dont tend to last well, they are folded over from the keyboard and press against parts on the back of the keyboard and the mainboard below. Instead of just giving memory locations it gives you a detailed description of each location, explaining what its for, how it is used by the computer, and, more importantly, how it can be used by the programmer. It was able to run all commodore 16 software, and plus4 software if memory was expanded to 64k. Commodore c16 c116 plus 4 emulators on windows and other platforms, free commodore c16 c116 plus 4 emulator downloads, as well as savestates, hacks, cheats, utilities, and more. Commodore plus 4 repair i was sent this plus4 recently with what i thought sounded like a rom fault. At the time, i loved my plus 4 and the 1551 drive that came with it. The plus4 was a commodore home computer sold from 1984 to 1986.

The major difference is that the plus 4 basic used bank switching to access the ram under the rom. I had both a commodore 16 and a plus 4 back when they came out. The screen formats supported are commodore 64 high resolution, commodore 64 multicolor, commodore plus 4 hires, commodore plus 4 multicolor, zx spectrum, msx 1 and amstrad cpc0. Jun 25, 20 comparing elite on commodore 64 plus 4 n elite 128 for c128 in c64 mode. Commodore 64 whole memory guide is much more than a memory map. The plus4s memory map, which used bank switching far more extensively than the c64, gave it a 56% larger amount of. As many of you will already know, the plus4 is the most unreliable machine commodore ever made. It featured a compact plastic casing and a fullyfledged keyboard. Using the same technique, the 64 basic could have made another 12k available. At the time, i loved my plus4 and the 1551 drive that came with it. Problems with the commodore 116, commodore 16, and commodore plus 4. The commodore plus4 like his other brothers has memory areas in which screen characters and colour values are stored independently. Memory map commodore plus 4 the commodore plus 4 is a home computer from the 1980s and typical with other computers of that era comes with a builtin keyboard and was designed to connect to a. The plus 4 was a commodore home computer sold from 1984 to 1986.

Comparing elite on commodore 64 plus 4 n elite 128. The cursor keys and function keys were made of rubber. The commodore plus4 like his other brothers has memory areas in which screen characters and colour values are stored independently from each other. Commodore software commodore 64 whole memory guide. The plus4 was similar to the c16 and c116, and it belonged to the commodore 264 series, which were all software compatible. I have no cable currently, so it has not been tested. Sep 19, 2016 still, as the commodore plus4 and commodore 16 were the same machine, software developers didnt bother to write games for both, and they just programmed 16k games that would run on both machines. Plus4, 64k memory 60 k available for basic, 50k with graphics enabled, the. Sep 02, 2014 the commodore plus4 like his other brothers has memory areas in which screen characters and colour values are stored independently from each other. Commodore plus 4 plus 4 was working last time i used it.

In these catagory you see a listing of all hardware articles about the c64 and other homecomputers of the 80s. Commodore plus 4 and commodore 16 the silicon underground. Commodore plus4 usb keyboard kit tynemouth software. Commodore plus4, 16, 264, 364 ted series the beginning of. Computer is in good condition, several minor external scuffs. Commodore plus4 with games my first computer youtube.