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Util/GMMP_Util.cpp@0:32c20cfb2b30, 2015-07-23 (annotated)

Committer:
lesmin
Date:
Thu Jul 23 00:55:15 2015 +0000
Revision:
0:32c20cfb2b30
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lesmin 0:32c20cfb2b30 1 /*
lesmin 0:32c20cfb2b30 2 * GMMP_Util.c
lesmin 0:32c20cfb2b30 3 *
lesmin 0:32c20cfb2b30 4 * Created on: 2013. 11. 27.
lesmin 0:32c20cfb2b30 5 * Author: root
lesmin 0:32c20cfb2b30 6 */
lesmin 0:32c20cfb2b30 7
lesmin 0:32c20cfb2b30 8 #include "GMMP_Util.h"
lesmin 0:32c20cfb2b30 9
lesmin 0:32c20cfb2b30 10 short ltobs(const short nShort)
lesmin 0:32c20cfb2b30 11 {
lesmin 0:32c20cfb2b30 12 return _btols(nShort);
lesmin 0:32c20cfb2b30 13 }
lesmin 0:32c20cfb2b30 14
lesmin 0:32c20cfb2b30 15 short btols(const short nShort)
lesmin 0:32c20cfb2b30 16 {
lesmin 0:32c20cfb2b30 17 return _btols(nShort);
lesmin 0:32c20cfb2b30 18 }
lesmin 0:32c20cfb2b30 19
lesmin 0:32c20cfb2b30 20 short _btols(const short nShort)
lesmin 0:32c20cfb2b30 21 {
lesmin 0:32c20cfb2b30 22 short nValue = 0;
lesmin 0:32c20cfb2b30 23
lesmin 0:32c20cfb2b30 24 nValue = (unsigned short)nShort >> 8;
lesmin 0:32c20cfb2b30 25 nValue |=(unsigned short) nShort << 8;
lesmin 0:32c20cfb2b30 26
lesmin 0:32c20cfb2b30 27 return nValue;
lesmin 0:32c20cfb2b30 28 }
lesmin 0:32c20cfb2b30 29
lesmin 0:32c20cfb2b30 30 long ltobi(const long nInt)
lesmin 0:32c20cfb2b30 31 {
lesmin 0:32c20cfb2b30 32 return _ltobi(nInt);
lesmin 0:32c20cfb2b30 33 }
lesmin 0:32c20cfb2b30 34
lesmin 0:32c20cfb2b30 35 long btoli(const long nInt)
lesmin 0:32c20cfb2b30 36 {
lesmin 0:32c20cfb2b30 37 return _ltobi(nInt);
lesmin 0:32c20cfb2b30 38 }
lesmin 0:32c20cfb2b30 39
lesmin 0:32c20cfb2b30 40 long _ltobi(const long nInt)
lesmin 0:32c20cfb2b30 41 {
lesmin 0:32c20cfb2b30 42 long nVal0, nVal1, nVal2, nVal3;
lesmin 0:32c20cfb2b30 43
lesmin 0:32c20cfb2b30 44 nVal0 = (unsigned long)nInt >> 24;
lesmin 0:32c20cfb2b30 45 nVal1 = (unsigned long)(nInt & 0x00FF0000) >> 8;
lesmin 0:32c20cfb2b30 46 nVal2 = (unsigned long)(nInt & 0x0000FF00) << 8;
lesmin 0:32c20cfb2b30 47 nVal3 = (unsigned long)nInt << 24;
lesmin 0:32c20cfb2b30 48
lesmin 0:32c20cfb2b30 49 return (nVal0 | nVal1 | nVal2 | nVal3);
lesmin 0:32c20cfb2b30 50 }
lesmin 0:32c20cfb2b30 51
lesmin 0:32c20cfb2b30 52 int freeRam () {
lesmin 0:32c20cfb2b30 53 // __brkval is the address of the top of the heap
lesmin 0:32c20cfb2b30 54 // if memory has been allocated.
lesmin 0:32c20cfb2b30 55 // If __brkval is zero then it means malloc has not used any memory yet, so
lesmin 0:32c20cfb2b30 56 // we look at the address of __heap_start.
lesmin 0:32c20cfb2b30 57
lesmin 0:32c20cfb2b30 58 return 0;
lesmin 0:32c20cfb2b30 59 }