libsimplegba

A library containing utilities for the Game Boy Advance.

Purpose

libsimplegba is a collection of functions and constants that can be used to interface with the GBA hardware hiding some of the complexity and low-level details.

The library focuses on ease of use without sacrificing efficiency: most of the functions are implemented as inline functions, meaning that under most circumstances they are just as efficient as writing to the hardware registers directly.

Modules

libsimplegba is composed of various modules, each specializing in a specific hardware component or task.

Here is the list of modules available (and their corresponding headers):

Misc
    Base                <base.h>
    Math                <math.h>
    Random              <random.h>
    Memory              <memory.h>

GBA Hardware
    Display             <gba/display.h>
    Background          <gba/background.h>
    Sprite              <gba/sprite.h>
    Window              <gba/window.h>
    Sound               <gba/sound.h>
    Backup              <gba/backup.h>
    Timer               <gba/timer.h>
    DMA                 <gba/dma.h>
    Input               <gba/input.h>
    Interrupt           <gba/interrupt.h>

Debug
    Profiler            <debug/profiler.h>
    mGBA                <debug/mgba.h>

Most modules are accompanied by a manual: see the doc directory. An overview of the library and a brief description of each module can be found in the libsimplegba manual.

Building

To build the library, run make. This will generate the static library file bin/libsimplegba.a.

Using libsimplegba

CPPFLAGS

To gain access to the library's header files, add the include directory to the include search path (-I<lib-path>/include).

LDFLAGS and LDLIBS

To statically link against bin/libsimplegba.a, add the bin directory to the library search path (-L<lib-path>/bin) and the libsimplegba.a file to the list of libraries (-lsimplegba).

To use the linker script provided by this library, add these linker flags: -nostartfiles and -T<lib-path>/lnkscript.

Example

Assuming the library is located at lib/libsimplegba:

# linker script
LDFLAGS += -nostartfiles -Tlib/libsimplegba/lnkscript

# libsimplegba
CPPFLAGS += -Ilib/libsimplegba/include
LDFLAGS  += -Llib/libsimplegba/bin
LDLIBS   += -lsimplegba

License

libsimplegba is released under the GNU General Public License, either version 3 of the License or any later version. Any work that uses this library must be released under a GPL-Compatible Free Software license.