ref: 600bbfe4aaa9ad0f73d8d73eef1b7670e5f7d3a3
dir: /os/pc/audio.h/
enum { Bufsize = 1024, /* 5.8 ms each, must be power of two */ Nbuf = 128, /* .74 seconds total */ Dma = 6, IrqAUDIO = 7, SBswab = 0, }; #define seteisadma(a, b) dmainit(a, Bufsize); #define CACHELINESZ 8 #define UNCACHED(type, v) (type*)((uintptr)(v)) #define Int0vec #define setvec(v, f, a) intrenable(v, f, a, BUSUNKNOWN, "audio")