rom-4page?

Hello, All!
Continuing to tinker with my Speccy, I added CMOS-Gluk
and accordingly became interested in the add-on. firmware
such as gluk52i and MadRom.
From the brief descriptions of them it is clear that they should be
sewn into the remaining empty space 27512 (4th bit).
However, it is not clear how they are connected - what port/bit?
Otherwise instead of 128 bass it somehow turns out incorrectly.
Please explain who knows.

--
Kirill Petrenko (xk...@mail.ru)

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Before you buy.

03 Nov 99 17:39, Kirill Petrenko wrote to All:

KP> such as gluk52i and MadRom.
KP> According to the brief descriptions for them, it is clear that they should be sewn into the remaining
KP> empty space 27512 (4th slice). However, it is not clear how they are connected -
KP> which port/bit?

After the reset, control should go not to 128 BASIC, but to this firmware.

Kirill Frolov. [ZX]

Kirill Petrenko (xk...@mail.ru)

Sent via Deja.com http://www.deja.com/
Before you buy.

KP> Well, this is understandable, but how can you get back?

Back only through RAM. When the percentage in RAM goes back to ROM
128 BASIC turns on - this is how TR-DOS is designed.

Kirill Frolov. [ZX]

KP> Let's say that during a reset, a certain trigger will connect the 4th segment instead of the 128 ROM.
KP> The firmware starts and displays the menu item
KP> "output in 128 BASIC". I click - and what next is unclear!

the subroutine servicing this menu item throws a certain treasured byte into a certain port
. On this treasured port there is another trigger, which is responsible for switching ROM slices. in accordance with the treasured byte, he
will connect the Basik-128 slice, and at the same time register the CPU.
this is all fundamental, and when applied to the madrom - h.z.

With best wishes, [ZX] ar...@mail.ru
Artur. wall...@mail.ru

3 Nov 1999 you wrote here:

k> and accordingly you became interested in additional. firmware
k> such as gluk52i and MadRom.
k> From the brief descriptions of them it is clear that they should
k> be sewn into the remaining empty space 27512 (4th segment).
k> However, it is not clear how they are connected - what port/bit?

A button is made so that when you press it, a “RESET” will occur and
at the same time DOS was turned on ("1" on the first leg of the ROM).
Well, like in the 48th, DOS starts after a reset, but with port #7FFD reset.

Good luck.
Best regards Roman.

KF> Return only through RAM. When the percentage in RAM goes back to ROM
KF> 128 BASIC is turned on - this is how TR-DOS is designed.
Will writing the value to the port not work? ;)

Yuri

Friday November 05 1999 23:51, Artur Ishmurzin wrote to Kirill Petrenko:

KP>> BASIC". I click - and what next is unclear!
AI> the subroutine servicing this menu item throws a certain treasured byte into a certain
AI> treasured port. on this treasured port there is
AI> another trigger that switches ROM slices in
AI> in accordance with the treasured byte, it will connect the Basik-128 slice, and
AI> at the same time will register the CPU, this is all fundamental, but when applied to
AI> madrom - hz.
Everything is simpler - no “cherished ports” are needed. ;)
We use the good old 7ffd

Yuri

KF>> back 128 BASIC is turned on - this is how TR-DOS is designed.
YV> But writing a value to the port will not work? ;)

OUT (7FFDh),0 in ROM tr-dos ?
It should work.

Kirill Frolov. [ZX]

AI>> in accordance with the treasured byte, it will connect the Basik-128 slice,
AI>> and at the same time register the CPU. this is all fundamental, but when applied to
AI>> madrom - x.z.
YV> Everything is simpler - no “cherished ports” are needed ;)
YV> We use the good old 7ffd

Only the transition is completely to the left address. :-(

Kirill Frolov. [ZX]

C нилучшими пожелями, [ZX] ar...@mail.ru
Artur. wall...@mail.ru