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Emul8or

A Chip-8 emulator written in Vala and SDL

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What is Emul8or?

Emul8or is, as the title suggests, a Chip-8 emulator written in the Vala programming language, utilising the SDL library for graphics. It is designed to emulate the Chip-8 and play Chip-8 ROMs.

What is the 'Chip-8'

From Wikipedia:

CHIP-8 is an interpreted programming language, developed by Joseph Weisbecker. It was initially used on the COSMAC VIP and Telmac 1800 8-bit microcomputers in the mid-1970s. CHIP-8 programs are run on a CHIP-8 virtual machine. It was made to allow video games to be more easily programmed for said computers.

Roughly twenty years after CHIP-8 was introduced, derived interpreters appeared for some models of graphing calculators (from the late 1980s onward, these handheld devices in many ways have more computing power than most mid-1970s microcomputers for hobbyists).

Compiling and running the program

Compilation is easy:

make build

Then to execute, simply run:

./emul8or

Warning

You may need to modify your /usr/include/SDL/SDL_keysym.h file for this to compile. For this reason, I have included in this repository a copy of that file. It has a seperate license to the rest of this repository.

Usage

There are 16 keys. These are mapped to the number keys (0-9) and the letters (A-F).

For more information, once compiled run:

./emul8or --help

Installation

To install Emul8or after compilation, run:

sudo make install

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emul8or's Issues

Error build 

~/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a$ make build
Building...
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c: In function ‘emul8or_renderer_run’:
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:388:10: error: ‘SDLK_ZERO’ undeclared (first use in this function); did you mean ‘SDLK_EURO’?
     case SDLK_ZERO:
          ^~~~~~~~~
          SDLK_EURO
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:388:10: note: each undeclared identifier is reported only once for each function it appears in
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:401:10: error: ‘SDLK_ONE’ undeclared (first use in this function); did you mean ‘SDLK_MODE’?
     case SDLK_ONE:
          ^~~~~~~~
          SDLK_MODE
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:414:10: error: ‘SDLK_TWO’ undeclared (first use in this function); did you mean ‘SDLK_TAB’?
     case SDLK_TWO:
          ^~~~~~~~
          SDLK_TAB
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:427:10: error: ‘SDLK_THREE’ undeclared (first use in this function); did you mean ‘SDLK_HOME’?
     case SDLK_THREE:
          ^~~~~~~~~~
          SDLK_HOME
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:440:10: error: ‘SDLK_FOUR’ undeclared (first use in this function); did you mean ‘SDLK_ONE’?
     case SDLK_FOUR:
          ^~~~~~~~~
          SDLK_ONE
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:453:10: error: ‘SDLK_FIVE’ undeclared (first use in this function); did you mean ‘SDLK_FOUR’?
     case SDLK_FIVE:
          ^~~~~~~~~
          SDLK_FOUR
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:466:10: error: ‘SDLK_SIX’ undeclared (first use in this function); did you mean ‘SDLK_FIVE’?
     case SDLK_SIX:
          ^~~~~~~~
          SDLK_FIVE
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:479:10: error: ‘SDLK_SEVEN’ undeclared (first use in this function); did you mean ‘SDLK_FIVE’?
     case SDLK_SEVEN:
          ^~~~~~~~~~
          SDLK_FIVE
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:492:10: error: ‘SDLK_EIGHT’ undeclared (first use in this function); did you mean ‘SDLK_RIGHT’?
     case SDLK_EIGHT:
          ^~~~~~~~~~
          SDLK_RIGHT
/home/gavr/Development/Builds/emul8or-8243afe38d0fc9ed05731542dfb5fb425948310a/src/renderer.vala.c:505:10: error: ‘SDLK_NINE’ undeclared (first use in this function); did you mean ‘SDLK_FIVE’?
     case SDLK_NINE:
          ^~~~~~~~~
          SDLK_FIVE
error: cc exited with status 256
Compilation failed: 1 error(s), 0 warning(s)
makefile:22: recipe for target 'build' failed
make: *** [build] Error 1

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