c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Copyright (C) 2000 The XFree86 Project, Inc. All Rights Reserved.
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c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/* Macros which handle a coordinate in a single register */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Most compilers will convert divisions by 65536 into shifts, if signed
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * shifts exist. If your machine does arithmetic shifts and your compiler
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * can't get it right, add to this line.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * mips compiler - what a joke - it CSEs the 65536 constant into a reg
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * forcing as to use div instead of shift. Let's be explicit.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#if defined(mips) || \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk defined(__i386__) || defined(__i386) || defined(__ia64__) || \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk defined(__amd64__) || defined(amd64) || defined(__amd64)
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define intToCoord(i,x,y) (((x) = GetHighWord(i)), ((y) = (int) ((short) (i))))
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define coordToInt(x,y) (((x) << 16) | ((y) & 0xffff))
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define intToCoord(i,x,y) (((x) = (int) ((short) (i))), ((y) = GetHighWord(i)))
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define coordToInt(x,y) (((y) << 16) | ((x) & 0xffff))
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#endif /* _MICOORD_H_ */