142 lines
3.6 KiB
Markdown
142 lines
3.6 KiB
Markdown
# Linux
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* [Structure](#structure)
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* [What works](#what-works)
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* [Executables](#executables)
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* [applen](#applen)
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* [qapple](#qapple)
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* [Build](#build)
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* [Checkout](#checkout)
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* [Fedora](#fedora)
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* [Raspbian](#raspbian)
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* [Speed](#build)
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* [Fedora](#fedora-1)
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* [Raspbian](#raspbian-1)
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## Structure
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There are 3 projects
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* libapple: the core emulator files
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* applen: a frontend based on ncurses
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* qapple: Qt frontend
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The libapple interface is a *link time* interface: some functions are not defined and must be provided in order to properly link
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the application. These functions are listed in [interface.h](source/linux/interface.h).
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The main goal is to reuse the AppleWin source files without changes: only where really necessary the AppleWin source files have
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been modified, mostly for
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* header files issues
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* const char *
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* exclude some Windows heavy blocks (source/MouseInterface.cpp)
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## What works
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Some key files have been completely reimplemented or discarded:
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* AppleWin.cpp
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* Frame.cpp
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* Video.cpp (partially)
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* Audio (including Mockingboard but excluding speech in QApple)
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Some features totally ignored:
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* ethernet
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* serial port
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* debugger
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* speech (currently it hangs the emulator)
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The rest is in a very usable state.
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## Executables
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### applen
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Frontend based on ncurses, with a ASCII art graphic mode.
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Keyboard shortcuts
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* F2: terminate emulator
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* F12: Load Snapshot
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* ALT-RIGHT: wider hi res graphis
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* ALT-LEFT: narrower hi res graphics
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* ALT-UP: vertical hi res (smaller)
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* ALT-DOWN: vertical hires (bigger)
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In order to properly appreciate the wider hi res graphics, open a big terminal window and choose a small font size.
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The joystick uses evdev (currently the device name is hardcoded).
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### qapple
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This is based on Qt, currently tested with 5.10
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* keyboard shortcuts are listed in the menu entries
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* graphics: runs the native NTSC code
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* joystick: it uses QtGamepad (correct names will only be displayed with 5.11)
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* emulator runs in the main UI thread
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* Qt timers are very coarse: the emulator needs to dynamically adapt the cycles to execute
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* the app runs at 60FPS with correction for uneven timer deltas.
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* full speed when disk spins execute up to 5 ms real wall clock of emulator code (then returns to Qt)
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* (standard) audio is supported and there are a few configuration options to tune the latency (default very conservative 200ms)
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* plain mockingboard is supported as well (not speech, which hang the emulator)
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* Open Apple and Closed Apple can be emulated using AltGr and Menu (unfortunately, Alt does not work well)
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## Build
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The project can be built using cmake from the top level directory.
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qapple can be managed from Qt Creator as well and the 2 have coexisted so far, but YMMV.
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### Checkout
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```
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git clone https://github.com/audetto/AppleWin.git --recursive
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cd AppleWin
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mkdir build
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cd build
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cmake ..
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make
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```
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Use `cmake -DCMAKE_BUILD_TYPE=RELEASE` to get a *release* build.
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### Fedora
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On Fedora 31, from a fresh installation, install all packages from [fedora.list.txt](source/linux/fedora.list.txt).
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### Raspbian
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On Raspbian 10, from a fresh installation, install all packages from [raspbian.list.txt](source/linux/raspbian.list.txt).
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Audio does not work and CPU utilisation is very high.
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## Speed
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### Fedora
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Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
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Full update = 582 MHz
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| Video Stype | Video update |
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| :--- | ---: |
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| RGB Monitor | 39 |
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| NTSC Monitor | 27 |
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| Color TV | 25 |
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| B&W TV | 27 |
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| Amber Monitor | 31 |
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### Raspbian
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Pi 3B+
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Full update = 54 MHz
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| Video Stype | Video update |
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| :--- | ---: |
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| RGB Monitor | 5.3 |
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| NTSC Monitor | 3.6 |
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| Color TV | 2.6 |
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| B&W TV | 2.9 |
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| Amber Monitor | 4.5 |
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