Software_System_Functions
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Software_System_Functions 
This page lists functions used by Linux games that are provided by the "sys" headers in "sys/". These may make some games more difficult to build in the bare-metal environment, because they may not be supported in the corresponding C Standard Library implementation used.
Games
3DPong
gettimeofday
Agendaroids
gettimeofday
CBzone
flock
gettimeofday
select
wait
Note: inc. high scores.
ICBM3D
gettimeofday
MAME
AdvanceMAME Version 3.9
Built with options:
--disable-asm --disable-zlib --disable-expat --disable-svgalib --disable-fb --disable-vc --disable-alsa --disable-oss --disable-pthread --disable-slang --disable-ncurses --disable-freetype --disable-sdl2 --disable-sdl --disable-svgawin --disable-mrawinput --disable-mcpn --disable-kraw --disable-jraw --disable-mraw --disable-mevent --disable-kevent --disable-jevent
Assuming that all graphics, sound, controller inputs, are implemented directly by modifying MAME itself to use the vectrexInterface library (controller inputs could be via the svgalib-vectrex translation library though).
advmame - The AdvanceMAME emulator.
connect
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
mprotect
select
shutdown
socket
uname
waitpid
__xstat64
advmess - The AdvanceMESS emulator.
connect
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
mprotect
select
shutdown
socket
uname
waitpid
__xstat64
advmenu - The AdvanceMENU frontend.
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
uname
utimes
waitpid
__xstat64
advm - The mouse tester.
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
uname
waitpid
advk - The keyboard tester.
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
uname
waitpid
advs - The sound tester.
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
uname
waitpid
advj - The joystick tester.
fchmod
__fxstat64
gettimeofday
ioctl
iopl
__lxstat64
mkdir
uname
waitpid
Rebel Defender
gettimeofday
ioctl
Note: inc. sound.
Rocks
gettimeofday
setitimer
Xasteroids
none
Xhyperoid
ioctl
setitimer
wait
Note: inc. sound.
Xinvaders3D
gettimeofday
Xlander
none
xsc
gettimeofday
Xspacewars
none
Zblast
ioctl
mmap
munmap
wait
Note: inc. sound and high scores.
Support
These are the functions that we know are supported in bare-metal environments:
Circle-Stdlib
Using Circle's port of Newlib. See "doc/stdlib-support.txt" in Circle.
gettimeofday
Function is in: libgloss/circle/gettod.cpp
Uses Circle's own kernel timer + interrupt system. See "include/circle/timer.h" and "lib/timer.cpp" in Circle.
Might need to find/write a more independent alternative to Circle's timing system.
wait
Stub function, returns error: libgloss/circle/wait.c
mkdir
Function is in: libgloss/circle/mkdir.cpp
Uses the FatFS library.
flock, ioctl, iopl, mmap, munmap, select, setitimer, are not found in libgloss/circle/*