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byte_order_generic_x86.h
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/* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1307 USA */ /* Optimized function-like macros for the x86 architecture (_WIN32 included). */ #define sint2korr(A) (*((const int16 *) (A))) #define sint3korr(A) ((int32) ((((uchar) (A)[2]) & 128) ? \ (((uint32) 255L << 24) | \ (((uint32) (uchar) (A)[2]) << 16) |\ (((uint32) (uchar) (A)[1]) << 8) | \ ((uint32) (uchar) (A)[0])) : \ (((uint32) (uchar) (A)[2]) << 16) |\ (((uint32) (uchar) (A)[1]) << 8) | \ ((uint32) (uchar) (A)[0]))) #define sint4korr(A) (*((const long *) (A))) #define uint2korr(A) (*((const uint16 *) (A))) #define uint3korr(A) (uint32) (((uint32) ((uchar) (A)[0])) +\ (((uint32) ((uchar) (A)[1])) << 8) +\ (((uint32) ((uchar) (A)[2])) << 16)) #define uint4korr(A) (*((const uint32 *) (A))) #define uint5korr(A) ((ulonglong)(((uint32) ((uchar) (A)[0])) +\ (((uint32) ((uchar) (A)[1])) << 8) +\ (((uint32) ((uchar) (A)[2])) << 16) +\ (((uint32) ((uchar) (A)[3])) << 24)) +\ (((ulonglong) ((uchar) (A)[4])) << 32)) #define uint6korr(A) ((ulonglong)(((uint32) ((uchar) (A)[0])) + \ (((uint32) ((uchar) (A)[1])) << 8) + \ (((uint32) ((uchar) (A)[2])) << 16) + \ (((uint32) ((uchar) (A)[3])) << 24)) + \ (((ulonglong) ((uchar) (A)[4])) << 32) + \ (((ulonglong) ((uchar) (A)[5])) << 40)) #define uint8korr(A) (*((const ulonglong *) (A))) #define sint8korr(A) (*((const longlong *) (A))) #define int2store(T,A) *((uint16*) (T))= (uint16) (A) #define int3store(T,A) do { *(T)= (uchar) ((A));\ *(T+1)=(uchar) (((uint) (A) >> 8));\ *(T+2)=(uchar) (((A) >> 16));\ } while (0) #define int4store(T,A) *((long *) (T))= (long) (A) #define int5store(T,A) do { *(T)= (uchar)((A));\ *((T)+1)=(uchar) (((A) >> 8));\ *((T)+2)=(uchar) (((A) >> 16));\ *((T)+3)=(uchar) (((A) >> 24));\ *((T)+4)=(uchar) (((A) >> 32));\ } while(0) #define int6store(T,A) do { *(T)= (uchar)((A)); \ *((T)+1)=(uchar) (((A) >> 8)); \ *((T)+2)=(uchar) (((A) >> 16)); \ *((T)+3)=(uchar) (((A) >> 24)); \ *((T)+4)=(uchar) (((A) >> 32)); \ *((T)+5)=(uchar) (((A) >> 40)); \ } while(0) #define int8store(T,A) *((ulonglong *) (T))= (ulonglong) (A) typedef union { double v; long m[2]; } doubleget_union; #define doubleget(V,M) \ do { doubleget_union _tmp; \ _tmp.m[0] = *((const long*)(M)); \ _tmp.m[1] = *(((const long*) (M))+1); \ (V) = _tmp.v; } while(0) #define doublestore(T,V) \ do { *((long *) T) = ((const doubleget_union *)&V)->m[0]; \ *(((long *) T)+1) = ((const doubleget_union *)&V)->m[1]; \ } while (0) #define float4get(V,M) \ do { *((float *) &(V)) = *((const float*) (M)); } while(0) #define float8get(V,M) doubleget((V),(M)) #define float4store(V,M) memcpy((uchar*)(V), (uchar*)(&M), sizeof(float)) #define floatstore(T,V) memcpy((uchar*)(T), (uchar*)(&V), sizeof(float)) #define floatget(V,M) memcpy((uchar*)(&V),(uchar*) (M), sizeof(float)) #define float8store(V,M) doublestore((V),(M))