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It's finished!!!!! Speccy is not dead, he is alive and continues to live!!!!!!
In this article there is proof of the truth of this statement and we
For the first time we provide you with HARDWAR modification to improve
capabilities of your ZX-compatible computer. It's hardware
so-called popularly "MULTICOLOR", which without loss
CPU time allows you to show on the entire screen
(2Sbx192) attributes of size (1x8) i.e. for each byte of the screen
corresponds to the attribute byte. You won't spend anything on this
time and no money, because all you need is 3-5 wires + a button and
only 10-20 minutes to solder these wires to the microcircuits. On
At the moment we can offer improvements for the following
computers: PROFI v5.00-04, PROFI v3.00-02 and of course PENTAGON
128. Research is currently underway in this area to connect
to other computers so wait. On softwareour level
There are also successes - ART STUDIO v1.5 under MULTICOLOR. In the original
it was intended for 48k machines, but due to the large
Due to the size of the attribute buffer, it had to be converted to 128k ONLY.
Main features:
- full compatibility with ZX
- ease of connection
- ease of software modification
- transition from standard mode to "MULTICOLOR" mode with one
by pressing a button, switching back is the same
- a more rational solution compared to other modifications
- address of attributes 2457b (#b000), their construction structure
similar to the arrangement of bytes on the screen
- complete freedom for programmers
Let me explain with an example: the address on the screen is 1b384 (#4000) or any
the other is in the HL register pair, we need to find the address in
attributes at the address on the screen, for this just
set 5 bits of the HL register pair and that’s it.
LD HL,1b384 (#4000) or LD HL,1b384 (#4000)
SET 5,H LD A,H
ADD A,32 (#20)
LD H,A
Disadvantages:
- the full screen will occupy not 912, but 12288 bytes
- graphics output speed will decrease by at least two timesP.S.
In the near future we are going to release descriptions of the improvements
computers. And for anyone who can't wait, call or write to
the address indicated at the beginning of the publication.
- graphics output speed will decrease by at least two times
P.S.
In the near future we are going to release descriptions of the improvements
computers. And for anyone who can't wait, call or write to
the address indicated at the beginning of the publication.
All this is carried out not for the benefit of the inventors but for prosperity
SPECCY and is not intended for any commercial gain. (C) D-Soft
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