How did you prototype this as you try some ideas by design ?

I want build many years a simple video fx mixer with TTL / CMOS / RAM / Roms but never get

Something "cool" stuff out of it.

Could you be so nice and tell me some literature to learn more about this techniques ?

I start at the moment with Altera MAX7000 CPLDs technology because Im lazy to solder all those Counters and latches all the time during testing

On veroboard.

Modern circuits (above 10MHz) can't be prototyped with breadboard (veroboard), or wire wrap. You have to build a pc board. And if you have to make a change, you cut traces and run new wire on the pc board (or build a new pc board).

But recently there have been a number of inexpensive PCB houses that receive your computer files over the internet and send you boards. Since less is done manually, the boards can cost less. ($100's instead of $1000's). There are some specials under $100 (Advanced Circuits).

Cadsoft Eagle is a popular PCB layout editor. It has a free version.

Some PCB houses (Advanced Circuits, for example) have a free layout editor that automatically sends the right information to them to build the board. The disadvantage is you a locked into a single PCB house.

Instead of wiring individual TTL chips together, modern designs use ASIC's or FPGA's. ASIC's cost millions to design and are out of range for many designers. FPGA's are programmable and very usable by professionals and hobbyist's alike. They can be programmed with logic and counters or even CPU's. Some have built-in CPU's or RAM.

Altera and Xilinx are the top FPGA companies in the world.
They have all their documentation, including tutorials on their websites. They both have free versions of their software. The easiest way to start writing FPGA code is to buy a development board. This is a board the manufacturer makes so engineers can try out their parts before building their own boards. Some have video inputs and outputs so you could play with video effects. Many are expensive, because they are not made in volume, but some are inexpensive or have a student discount.

Digilent makes a number of dev boards.
comp.arch.fpga is another great FPGA resource.

CPLD's are like simpler FPGA's (a subset). They can do logic and counters and maybe simple math, but you can't implement a CPU in a CPLD. On the board you mentioned, the video processing was done in ASIC's that were designed for another project. The CPLD's just connected the chips together (aka glue logic).

I would suggest you buy an FPGA development board with the peripherals you need (video I/O, TTL level I/O or just a connection to a computer). Then you could program it to do something neat.