Es que las gafas de madera no valen ....
Píllate unas "Aflelú" ....
Bueno, fuera de coñas, espero que te sirvan.
Un saludo.
Moderador: Fundadores
Es que las gafas de madera no valen ....
merlinkv escribió: ↑09 Oct 2018, 23:21 Hola.
No, no venía con manual, aunque he ido recogiendo algo de información de los foros rusos.
La ROM del Pentagon va en un W27C512 y la ROM de test va en un КР573РФ5 (AT28C16).
Creo que hay un jumper (interruptor) para iniciar la ROM de test.
En cuanto pueda te busco la info más detallada.
¡Animo! Seguro que te queda de PM.stratotrasto escribió: ↑09 Oct 2018, 23:29Algo así he creído entender en el foro ruso. Mi versión de placa, hay que modificarla para que la ROM de test se inicie. Tengo ambos esquemas, la versión original y la version de 2014, con estos cambios ya hechos. Miraré a ver si es factible la modificación sin demasiados cambios, que ya llevo muchas horas con este proyecto y parece que nunca termine... En parte culpa mía por ir queriendo meterle más cosicas y dejarlo 'full equip".
Un saludo.
Código: Seleccionar todo
11.2 The Magic button
The Magic button is situated at the rear of the Disk Interface
(see Diagram 1). The purpose of the Magic button is to save
cassette based programs and run on disk without any conversion.
There are many programs which have been written in such a manner
that it is either difficult or impossible to convert and run on
disk. These may be those programs with sophisticated protection or
those which SAVE and LOAD data files for the main program to use.
Because the sunstitution of TRDOS commands in not possible a
different approach is required.
For the latter the program is loaded and data file(s) created.
Instead of using the programs own SAVE instructions the Magic
button is used to dump the whole programs and files to disk.
Subsequent reloading means loading the complete package instead of
just a data file.
The minor inconvenience of having an individual tailor made
version of the complete package for each type of data file is
offset by the speed abd flexibility of TRDOS disk working.
A formatted blank disk should be set aside purely for this purpose
and when used MUST be in drive A. Assuming these are in order, the
following sequences show you the detailed operations (assuming you
are in TRDOS):
(1) Return to BASIC, by typing
RETURN <ENTER>
(2) Pull the System switch to the off position.
(3) Clear the Spectrum by typing
PRINT USR 0 <ENTER>
(4) Load and run program from cassette tape as normal.
(5) After the program has been loaded and is running, press the
Magic button and release it promptly.
The computer memory is then dumped to the disk. The memory is
stored as file(s) on the disk.
SPECTRUM & PLUS : only one file will be created. This file
contains the image of the whole 48K of RAM. A
CAT of the disk will reveal that the title is
"@" abd the file type is CODE.
SPECTRUM 128 : up to seven files may be saved depending on
whether the pages on the upper 64k RAM are being
used. An example of the disk catalogue after a
Magic button dump is:
Title: test
7 File(s)
0 Del. File
A:@ <C>192:@7 <C> 64
A:@6 <C> 64:@4 <C> 64
A:@3 <C> 64:@1 <C> 64
A:@8 <C> 1
The "family" name if these files is "@".
To reload the file (for all Spectrum computers) the syntax changes
from the normal LOAD or RUN. Instead the SOS keyword of GOTO
[letter G] is used, eg:
GOTO "@"CODE
The program can be renamed ir copied to another disk under its own
title and run by the GOTO command, eg:
NEW "game1", "@"CODE
COPY "B:game1", "A:@"CODE
When running "game1" and assuming the disk is in drive A the
syntax is:
GOTO "game1"CODE
SPECTRUM 128 : it is possible to rename or copy all the files (one
by one) using the NEW and the COPY commands.
Hovewer, for your convenience, a Utility program,
MAGIC is supplied on the Utility disk. See the
Appendix for details. This Utility program may also
be used to erase a 'family" of files saved by the
Magic button.
Before you use the Magic button to save a program, you must ensure
that the disk does not contain any file with the name "@" or "@1"
etc.
Some programs use a non-standart key scan routine. For these
programs it will be necessary to make the first character of the
disk title a "$", eg:
GOTO "$game1"CODE
If the program is being checked before copied with a title to
another disk then the file title would require the prefix "$" if
the key scan problem occours, eg:
NEW "$game2", "@"CODE
GOTO "$game2"CODE
During the loading ot these files the screen display will contain
some random elements, often a number of pixel lines which look
something like a visual Morse transmission. When it clears the
program will run from where it was stopped.