Update to bsnes v025r03? release.

New WIP up, and this one is _not_ for playing games on.

 I replaced the memory mapper entirely with a new system that should
be infinitely easier to remap dynamically. This is a necessary step
for BS-X MMIO register emulation. It should also speed up S-DD1
emulation by eliminating the need for a special address conversion
routine to simulate its memory mapper.

 However, the new bus memory mapper is anything but complete. Right
now, it only loads really, really basic LoROM games. Stick to Super
Mario World and Zelda 3.

 Some good news is that it's ~1-2% faster with MinGW4, but the bad
news is that it's ~10% slower with Visual C++, and MS' compiler is
stupidly storing my 128kb array directly into the EXE, making the file
size bigger. And yet the ZIP of the whole thing is smaller! >_<

 Bah. I think I can fine tune most of the performance lost back out of
Visual C++ with some forced inlining, and I'll make that WRAM array
allocate at runtime.

 Surprised I was able to get any games playable in less than three
hours, replacing the entire memory mapping system like that. Lucky me.







> -O8 -mtune=prescott -ffloat-store -fforce-addr -finline-functions
> -fexpensive-optimizations -funroll-all-loops -ffast-math -fomit-
> frame-pointer




 I didn't realize you could go above -O3 ... interesting. If you want,
try building with profile guided optimizations for another ~15% speed
boost. It's pretty unstable like that, though. Maybe you'll have
better luck than me.

               The warning message is in src/cart/cart_file.cpp at the
top.

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byuu

2007-10-17 04:51:00 +00:00

parent c58e3af1b5

commit 42d3f2a37f

Update to bsnes v025r03? release.

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