1ffd? The truth is out there somewhere!
ZXNet echo conference «code.zx»
I'm glad to welcome you, All!
Hey coders, who has the subject, respond, please explain the layout
8 bits of subject, i.e. their purpose at the present time and distinguished. whether
they are in kai and scorpion. Needed for business!!!
Best regards, Niko. ATM-turbo rulez!!!
e-mail: sprutmail@newmail.ru si yo leter, All....
Hello Nik!
04 Oct 01 21:52, Nik Aleksandrovich -> All:
NA> Hey coders, who has the subject, respond, please explain the layout
NA> 8 bits of subject, i.e. their purpose at the present time and distinguished. whether
NA> they are in kai and scorpion. For business it is necessary!!!
On Skoppa:
bit0 - In page 0 (#000-#3FFF) ROM or RAM
bit1 - ROM page 0-1 or 3
bit2 - if not glitchy, then this is activation of direct access to TR-DOS ports
bit3 - RS232
bit4 - select RAM 0-7 or 8-15
bit5 - STROBE for printer
bit6 is sometimes used to expand memory up to 1024
bit7/
Bits 2/6/7 may be missing ;)
I don’t know about KAYA.
Alexand
Hello Nik!
Thursday 04 October 2001 21:52:14 Nik Aleksandrovich -> All:
NA> Hey coders, who has a subject, respond, Explain plz
NA> layout
NA> 8 bits of subject, i.e. their purpose at the present time and different.
NA> whether
NA> they are in kai and scorpion. For business it is necessary!!!
I don’t know about kai, but in scorp it’s like this:
#1FFD: 76543210 bits
xxcerorb
││││││
│││││└── (blk) "1" - ROM lock
││││└─── (rom) "1" - select ROM Expansion
│││└──── (open)"1" - direct access to tr-dos ports
││└───── (rs232) - output via RS-232
│└────── (extended) - extended RAM (pages 8..15)
└─────── (centronics) - gating for CENTRONICS
bit number 2 appears in GMX or in homemade modifications.
Nikolaj.
[REAL ZX]
Hello Nikolaj!
October 10, 2001 (it was 21:46 then)
Nikolaj Amosov in his letter to Nik Aleksandrovich wrote:
NA>> Hey coders, who has a subject, respond, Explain plz
NA>> layout
NA>> 8 bits of subject, i.e. their purpose at the present time and different.
NA>> whether
NA>> they are in kai and scorpion. For business it is necessary!!!
NA> I don’t know about kai, but in scorpion it’s like this:
NA> #1FFD: 76543210 bits
NA> xxcerorb
NA> ││││││
NA> │││││└── (blk) "1" - ROM lock
NA> ││││└─── (rom) "1" - select ROM Expansion
NA> │││└──── (open)"1" - direct access to tr-dos ports
NA> ││└───── (rs232) - output via RS-232
NA> │└────── (extended) - extended RAM (pages 8..15)
NA> └─────── (centronics) - gating for CENTRONICS
NA> bit number 2 appears in GMX or in homemade modifications.
Moreover, it is dangerous: when installed, the ROM is located at the address #0000-#3FFF
TR-DOS. Accordingly, all subprograms that use the ROM go into trouble. That's whyAfter reading from the TR-DOS port, it must be reset immediately. Or better yet not at all
touch :)
NA> Nikolaj.
Vega / ex-Style Group. October 11, 2001
├┼e││0, Nik, how do you do...
┴┴─┴┴──────────────── - - -
∙∙∙ Thursday ∙∙∙ October 04, 2001 ∙∙∙ 21:52:14 ∙∙∙
Some Nik Aleksandrovich poked at the keyboard on the topic 1ffd? The truth is somewhere nearby!.
Everyone was the first to know about this...
[...]
NA> layout
NA> 8 bits of subject, i.e. their purpose at the present time and different.
NA> whether
NA> they are in kai and scorpion. For business it is necessary!!!
bit 0 - ROM lock; when this bit is set, it is possible
using bank zero RAM as ROM (in
addresses 0-16383)
bit 1 - shadow ROM selection
bit 2 - not used
bit 3 - used when outputting to RS-232C
bit 4 - connecting 8-15 cans instead of 0-7 cans
bit 5 - used for output to CENTRONICS
bit 6 - not used
bit 7 - not used
All this feces is standard for a Scorpio. I don't know about Kai...
NA> Best regards, Niko. ATM-turbo rulez !!!
┌──>> Konstantin Lebedev/ElectroN/NightMare_Crew/SPb/Russia<<──┐
├>POST BBS...(812) 259-50-59...00:00-24:00...Vicomm compatible<┘
└──── ─ ─ ─ Thursday, October 11, 2001 08:03:23...
Ave, Nik, morituri te salutant!
Somehow Thursday October 4, 2001 at 21:52:14 soaped
Nik Aleksandrovich to All on the topic 1ffd? The truth is out there somewhere!
NA> Hey coders, who has the subject, respond, Explain plz
NA> layout of 8 bits of the subject, i.e. their purpose in the current
NA> time and diff. whether they are in kai and scorpion. For business it is necessary!!!
On Kaya:
D0 - ROM/RAM in sector 0
D1 - Q8/ pin 25 XS1
D2 - SLCTIN 0 - turbo / 1 - normal
D3 - ROMS
D4 - RAM bank
D5 - STROBE pin1 XS1
D6 - 06/ pin23 XS1
D7 - a 18
SAYO:NARA, DO:ZO O-GENKI-DE, Evgeny Poddubny.
@ZXNet 500:4232/1.777 | Fidonet 2:5045/78.777
Hello Nik!
Monday October 15, 2001 22:03:30 Nik Aleksandrovich -> Nikolaj Amosov:
[skip]
NA>> bit number 2 appears in GMX or in homemade modifications.
NA> Yeah, I see! What kind of clone is GMX?
This is a scarf that is placed in place of the processor and has
your RAM (2MB), ROM (512Kb flash) and processor, as well as m/s
Altera. The scarf can emulate several types in hardware
computers, including PENTAGON. There is also an extended
color screen 640*208 with hardware scrolling.
Nikolaj.
[REAL ZX]
Hello Yuri!
Saturday October 20, 2001 00:29:08 Yuri Teslenko -> Nikolaj Amosov:
NA>> computers, including PENTAGON. There is also an extended
NA>> color screen 640*200 with hardware scrolling.
YT> What is the standard for the screen?
What kind of standard is that?
Here is a clipping from the instructions for GMX:
5. Graphic screen 640*200
The number of colors is the same as in the regular ZX SPECTRUM, but unlike
In this case, each byte of graphics corresponds to an attribute byte.
Graphic screen addressing starts from #C000, with
completely linear, i.e. the first 80 bye - the first line of the screen,
the next 80 bytes are the second line, etc. The graphic screen itself
located in bank #39 (SCR=0) or #3A (SCR=1). Whole screen
has 200 lines and takes up 16,000 bytes of memory for graphics and
the same amount for attributes. Attributes are stored in banks #79 and #7A
accordingly. Attribute addressing is the same as for graphics.
The attribute byte structure is standard.
Nikolaj.
[REAL ZX]
Hello Nikolaj!
30 Oct 01 21:54, Nikolaj Amosov -> Nik Aleksandrovich:
NA>> How can you get one?
NA> You can get it, but it’s difficult - by pre-ordering from the company
NA> Scorpio. Try here:
NA> sczs@infopro.spb.su
IMHO ^^^^^^^^^^^^^^^^^^^ already dead. There is info@scorpion.ru.
NA> WWW.SCORPION.RU
NA> 2:5030/529.16 who knows (apparently Zonov)
It is most likely useless to write here. The Zones themselves spread
does not deal with spectrum components. There is a specially trained person for this
man.
NA> 199048 St. Petersburg, PO Box 083, Zonovy Sergei
NA> It costs $38 without memory. You buy the memory yourself (2 simm 30pin), so
NA> as in Scorpa it will cost $6.
As far as I remember, there is not a single working gmx now. Everything is needed
configure/check, but in fact there is no one/no time to do this.
The easiest way to find out all the questions is to call Scorpio:
+7(812)320-7-160. Ask Sergei Zerov.
Sergey