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| author | Nebuleon Fumika | 2012-12-21 03:50:10 -0500 |
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| committer | Nebuleon Fumika | 2012-12-21 03:50:10 -0500 |
| commit | a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0 (patch) | |
| tree | 6bc433422db602b974a01dffbfc5ce5d84afc578 /source/c4.h | |
| parent | 3972512b2a5c25236ea3ba586621dba6e5b56361 (diff) | |
| download | snesemu-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.tar.gz snesemu-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.tar.bz2 snesemu-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.zip | |
Eliminate the latency of button press recognition, which was bad enough to lose keys entirely sometimes, and could otherwise delay a button press or release by 200 ms.
This was the entire reason I created the fork, and I finally did it! It syncs the controls every scanline of a frame, which costs about 60,000 MIPS instructions per frame to deal with. Luckily, the processor runs at 396 MHz, which means the cost of checking the controls is 1% of the CPU's power.
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