Another case of vaporware ! In the end of 1990, Commodore decided to create a successor for the famous C64.They worked on a prototype called C64 DX then C65.
The C65 had new great features : a very special version of the 7510 with lot of new opcodes, great graphic modes (better than the Atari ST or the Amiga !) and a great new processor : the DMA / Blitter. This chip can be programmed with a list of instructions to copy or set blocks of memory.
The machine was meant to be fully compatible with the C64, but wasn't. A special key was added on the keyboard to switch between the two modes (C64 / C65).
The development of this machine was stopped (apparently because of problems with the VIC III controller and because of the cost of this computer), and because of the success of the Amiga (Notice that the C65 case looks like the Amiga one !).
Commodore produced about 50 C65's, the first ones display C64DX at boot, the latest display C65.
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.
Where shoud that special key 64/65 mode switch should be? There is no key, just enter "GO64" or Press down C$ key on startup like C128.
Second false information is a 7510 IC. I don''t know what this should be? Please correct me but: A C65 has a VICTOR 4510 CPU, an BILL (VIC-III) 4567 graphics chip and 2 SID Soundchips as well as DMAgic (except Rev 1.1).
There are probably 200-250 units made. Currently and today I know of about 50 units in collectors hand.
128 KB (DRAM), externally expandable from additional 512K bytes to 4MB
128 KB (including C64 Kernel and BASIC 2.2, C65 Kernel, Editor, BASIC 10.0, ML Monitor (like C128), DOS v10)
40 x 25 (C64 Mode), 80 x 25 (with blink, bold and underline attributes)
All C64 modes (320 x 200 bitmap mode) + 320 / 640 / 1280 x 200 / 400 in 2, 4 or 8 planes, interlaces and non-interlaced
Programmable 256-color RAM palette, with 16 intensity levels per primary color (yielding 4096 colors)
Dual 8580r5 SID Sound chips. 6 voices, 3 per channel
RF video output jack, Analog video RGB port (DB-9), Composite video/audio port, Joystick (2), Cardridge slot, Tape, Serial bus port, User Port (RS232 compatible), RAM Expansion port, External floppy drive port, 2 x controller ports, Stereo audio output