Here is a list of all files with brief descriptions:

audio.cpp
audio.h
border.cpp
border.h
button.cpp
button.h
canvas.cpp
canvas.h
canvasgl.cpp
canvasgl.h
canvasstd.cpp
canvasstd.h
clock.h
cmdtable.cpp
cmdtable.h
cmdtabledef.cpp
cmdtabledef.h
color.cpp
color.h
colours.cpp
colours.h
compspec.h
config.h
cpc.cpp
cpc.h
cpckeys.h
crtc.cpp
crtc.h
def.h
directory.cpp
directory.h
drive.cpp
drive.h
events.h
exception.cpp
exception.h
fdc.cpp
fdc.h
fdcconst.h
fileinfo.cpp
fileinfo.h
filelist.cpp
filelist.h
filelistitem.cpp
filelistitem.h
filename.cpp
filename.h
gatearray.cpp
gatearray.h
glfunclist.h
glfuncs.cpp
glfuncs.h
gui.cpp
gui.h
icon.h
image.cpp
image.h
imagefont.cpp
imagefont.h
keyboard.cpp
keyboard.h
keytrans.cpp
keytrans.h
label.cpp
label.h
list.cpp
list.h
listitem.cpp
listitem.h
macros.h
memman.cpp
memman.h
mmx_memcpy.h
pixel.h
point.h
ppi.cpp
ppi.h
prefs.cpp
prefs.h
psg.cpp
psg.h
raze.h
raze.inc
rect.h
register.h
roland.cpp
sdlpixel.h
sector.cpp
sector.h
size.h
sound.cpp
sound.h
track.cpp
track.h
types.h
vdu.cpp
vdu.h
video.cpp
video.h
videogl.cpp
videogl.h
videostd.cpp
videostd.h
widget.cpp
widget.h
windirent.h
z80.cpp
z80.h