ref: c3867623ae93eca77ba6e4f3d851240442f02caf
dir: /sys/src/boot/alphapc/mem.h/
/* * Memory and machine-specific definitions. Used in C and assembler. */ #define BI2BY 8 /* bits per byte */ #define BI2WD 32 /* bits per word */ #define BY2WD 4 /* bytes per word */ #define BY2V 8 /* bytes per vlong */ #define KZERO 0x80000000 #define PTEVALID 0xff01 #define PTEKVALID 0x1101 #define PTEASM 0x0010 #define PTEGH(s) ((s)<<5)