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3dsspec
Nintendo 3DS Spectrum emulator.
Copyright (C) 2021 Ian Cowburn <ianc@noddybox.co.uk>
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 3
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, see <http://www.gnu.org/licenses/>
================================================================================
1. General Operation
--------------------
You will be presented with the emulated spectrum screen in the upper display
and a keyboard on the touch display. Press the keys to interact with the
emulation. Click on the MENU banner to display the main menu.
2. The Main Menu
----------------
The main menu shows the following options. To interact with the menu either
use the touchscreen or up/down on the pad and A to select:
Reset Spectrum - Reset the spectrum.
Load TAP File - Load a TAP file from the SD card. To load the
TAP file enter LOAD "" in the emulator.
Configure - Configures the emulator. See the following
section.
Map Joypad to Keys - Allows you to define what keys on the keyboard
the joypad and buttons will press.
Save Memory Snapshot - Save a snapshot of the running state.
Load Memory Snapshot - Load a previously saved memory snapshot.
Save Joypad/Key State - Saves the current joypad to keys mapping.
Load Joypad/Key State - Loads a saved joypad/key state.
Debug - Displays a debug menu. See a later section
for details.
Exit 3DSSPEC - Exits the emulator.
Cancel - Cancel the menu and go back to the emulation.
3. Configuration
----------------
The configuration screen gives you the following options.
Sticky Shift - Whether the two shift keys are 'sticky'.
Sticky means that when pressed the key stays
pressed until they are pressed again.
Load Default Snapshot - Whether the emulator attempts to load a
memory snapshot called AUTO when it starts.
Sound - Whether to play sound.
4. Debug Menu
-------------
The debug menu gives you access to various debug options. The menu has the
following options:
Enable Debug Output - Enables debug output. When selected it
prompts for a host and port number and
connects to that host and port to send debug
messages.
Disable Debug Output - Disables the debug output.
Disassembler - Displays a disassembly of the spectrum's
memory. Press the joypad up/down to decrement
and increment the displayed address. Press
the shoulder buttons to move in pages. Press
the B button to enter an address. Press the
START button to exit.
Memory Viewer - Displays a hex dump of the spectrum's memory.
Press the joypad up/down to decrement and
increment the displayed address. Press the
shoulder buttons to move in pages. Press the
B button to enter an address. Press the START
button to exit.
CPU Info - Displays a screen with the Z80's registers.
Press the shoulder buttons to cycle which
register pointer is dumped to the screen.
Press the B button to execute the next
instruction. Hold the X button to execute
quickly. Press the START button to exit.
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