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README.SDL
This is the README for the SDL port of Yape/SDL (Yet Another Plus/4 Emulator)
Current version is 0.59.1
LEGAL
=====
Yape for SDL is
(C) 2000,2001,2004,2007,2008,2015 Attila Grรณsz (gyros@freemail.hu)
http://yape.plus4.net
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA
The ROM file headers in the package are
Copyright (C) by Commodore Business Machines.
COMPILE
=======
To be able to compile on Linux, you must have the latest SDL
package from http://libsdl.org. The recent stable release as of time of
this writing is 2.0.3. You will need the development libraries.
The provided makefile is written for the GNU C++ compiler but can also
be easily adjusted for other compilers.
It is very likely that if SDL is supported on your system, than Yape can
be compiled and run. Hence, an Android port is also possible, and Yape has
been succesfully compiled on Windows and 64 bit Linux systems as well.
Once the libraries and header files are installed, you should
extract the source tarball to a directory, and simply type:
make
If the compilation finished with no error, you can type:
./yapesdl [PRG/TAP filename]
to start the emulator, where filename is optional.
USAGE
=====
The user interface isn't yet ready, so you MUST memorise a couple
of keyboard shortcuts:
F12 or ESCAPE : exits the emulator
F11 : soft reset
LCTRL + F11 : forced reset (memory remains intact)
SHIFT + F11 : hard reset (clear memory, reloads ROMs, rewinds tape)
F5 : press PLAY on tape
F6 : press STOP on tape
F7 : save screenshot to BMP file
F8 : enter the user interface, press F8 again or ESC to quit.
You can move around in the menus with the arrow keys, press ENTER for selection.
F9 : quick debugger
F10 : save current settings to user's home directory
LALT + 1-3: set window size
LALT + E : switch among emulators (C+4 cycle based; C+4 line based; C64 cycle based)
LALT + I : switch emulated jostick port
LALT + M : enter console based external monitor and disassembler
LALT + S : display frame rate on/off
LALT + P : toggle CRT emulation
LALT + W : toggle between unlimited speed and 50 Hz frame rate (original speed)
LALT + ENTER : toggle full screen mode
Internal disk LOAD/SAVE operations are supported to the current
file system directory in C+4 modes, which is usually '/home/<username>/yape'.
Any PRG files you may wish to load, should go there, although you can browse the directory tree
from the user interface, too.
This means that an exact filename match will load
the requested program, similarly can you save a file.
Full ROM banking is supported, currently only via the yape.ini configuration
file. You must fill in the path for the relevant ROM image you intend to use.
However, Yape supports some internal ROMs already. These are:
- 'BASIC' - the ROM image containing the BASIC interpreter
- 'KERNAL' - the system kernal ROM image
- '3PLUS1LOW' - the low bank ROM image of the built-in plus/4 software
- '3PLUS1HIGH' - the high bank ROM image of the built-in plus/4 software
KEYBOARD MAPPINGS
=================
For the keys at different positions, the emulator relies on SDL, so your
mileage may vary.
There are several keys that need to be mapped to the emulator keyboard
differently. These are:
Commodore emulator
------------------------
Pound = END
Clr/Home = HOME
FEATURES
========
Yape features:
- full, cycle exact MOS 7501 CPU emulation
- almost full TED 7360 chip emulation
- real 1541 drive emulation
- full ROM banking
- almost full tape emulation
- joystick emulation via cursor keys
- color palette based on original Commodore specs
- PRG and TAP file format support
- SID card emulation
- partial CRT emulation
- fake disk LOAD/SAVE to the file system
LINKS
=====
http://yape.plus4.net : Yape homepage
http://plus4world.powweb.com : Commodore +4 World (games, tape images, scans etc.)
http://c64.rulez.org : Commodore plus/4 mail list and FTP archive