Re: emulators/fbneo: fix building on aarch64 netbsd

[adr <adr%sdf.org@localhost>]

On Mon, 10 Feb 2025, adr wrote:
> P.S. There is a problem with audio latency, something that happens
> with most (all?, only sdl?) applications. With mpv I have to
> configure a negative delay of 300ms with rpi4 vc audio, or 500ms
> with usb audio. This shouldn't happen, but that's another story
> for another day...

I built retroarch and libretro-fbneo. The audio with audioio is
ok. If I set the audio driver to sdl2, I get the same latency that
I have with other aplications using sdl. There is some problem with
netbsd audio support in sdl.

By the way, libretro-fbneo's Makefile has

.elif ${MACHINE_ARCH} == "aarch64"
MAKE_FLAGS+=    ENDIANNESS_DEFINES=-DLSB_FIRST aarch64

but the patch of burn_endian.h should include

---------------------
-// Xbox 360 has byteswap 64-bit intrinsic
-#ifndef _XBOX
+// Xbox 360 and NetBSD have byteswap 64-bit intrinsic
+#if !definded(_XBOX) && !defined(__NetBSD__)
---------------------

if you want to support this port with big endian platforms, although
I think the TWO_PIX_32 macro mess will cause problems...

Emulators/fbneo has better performance, specially at full screen, but
this version doesn't support joystick configuration:

https://github.com/finalburnneo/FBNeo/issues/1462

If I find time I'll make a port with the nightly builds on wip:

https://github.com/finalburnneo/FBNeo/releases/tag/latest

or ask for a new release.

Regards.
adr