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Re: TMS-09xx/1xxx thread (was New Dumps) hydef 10/17/19 09:29 PM
I honestly don't know about it but if you think it's alright that's good )

I'm starting to add some case artwork views as requested.. I'm only going to add the top of the cases with the logos on. So far there's Donkey Kong, Oil Panic and Mickey & Donald
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Non-Windows MAME Support Jump to new posts
Re: MAME on ODROID-N2 (Linux) Steve Bourg 10/17/19 08:13 PM
Originally Posted by belegdol

Yes, these are the droids I am looking for. You could try passing ARCHOPTS=-march=native to make (need to do REGENIE=1 for the change to take effect). Make sure the flag actually does anything by running
$ gcc -march=native -E -v - </dev/null 2>&1 | grep cc1

Don't hold your breath, but if a couple percent speed bump is all you need this might just do the trick.

In the majority of my tests, mame binaries compiled on this odroid-n2 with ARCHOPTS=-march=native win by a sliver. It's such a tiny margin (typically 0.1% - .25%), and there are cases where the reverse is true. I couldn't fault someone for suspecting statistical noise. Same outcome whether compiled with gcc7 or gcc8. Worth a shot.

# gcc -march=native -E -v - </dev/null 2>&1 | grep cc1
 /usr/lib/gcc/aarch64-linux-gnu/8/cc1 -E -quiet -v -imultiarch aarch64-linux-gnu - -mlittle-endian -mabi=lp64 -march=armv8-a+crypto+crc -fstack-protector-strong -Wformat -Wformat-security

# gcc -E -v - </dev/null 2>&1 | grep cc1
 /usr/lib/gcc/aarch64-linux-gnu/8/cc1 -E -quiet -v -imultiarch aarch64-linux-gnu - -mlittle-endian -mabi=lp64 -fstack-protector-strong -Wformat -Wformat-security

I'll also note here that I have best testing mame's maciici emulation performance, compiled with gcc7 vs. gcc8, and gcc7 is winning by a margin of nearly 2%. No net improvement for me, as I have been using gcc7 from the start.
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