作者conpo (狮子たちの旗)
看板Emulator
标题Re: [新闻] (WIP) Kale's Mame Wip: Bloqueador de ondas sonoras
时间Thu Nov 26 21:13:47 2015
2015.11.25
"Bloqueador de ondas sonoras"
While fixing some sound related issues in WEC Le Mans 24/Hot Chase HW, I’ve
got across a code snippet that was stealing a lot of cycles in Hot Chase.
Turned out that Master CPU was checking for an hand-shake bit from sound CPU
after sending a sound command data and an irq request line, and looping to a
pretty fat chunk of time until eventually timing out if the default state is
‘1’ (which was default behaviour so far). Fixing that, and gameplay speed
finally normalized for good.
https://www.youtube.com/watch?v=Rr9sU8aNhNU&feature=player_embedded
来源
http://mamedev.emulab.it/kale/
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http://perry0517a.blogspot.tw/
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