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[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [testfloat/] [random.c] - Rev 588
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/* =============================================================================== This C source file is part of TestFloat, Release 2a, a package of programs for testing the correctness of floating-point arithmetic complying to the IEC/IEEE Standard for Floating-Point. Written by John R. Hauser. More information is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'. THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. Derivative works are acceptable, even for commercial purposes, so long as (1) they include prominent notice that the work is derivative, and (2) they include prominent notice akin to these four paragraphs for those parts of this code that are retained. Modified for use with or1ksim's testsuite. Contributor Julius Baxter <julius.baxter@orsoc.se> =============================================================================== */ /* #include <stdlib.h> */ #include "support.h" // OR1k support C library #include "milieu.h" #include "random.h" uint8 randomUint8( void ) { return (bits8) ( rand()>>4 ); } uint16 randomUint16( void ) { return ( ( rand() & 0x0FF0 )<<4 ) | ( ( rand()>>4 ) & 0xFF ); } uint32 randomUint32( void ) { return ( ( (uint32) ( rand() & 0x0FF0 ) )<<20 ) | ( ( (uint32) ( rand() & 0x0FF0 ) )<<12 ) | ( ( rand() & 0x0FF0 )<<4 ) | ( ( rand()>>4 ) & 0xFF ); } #ifdef BITS64 uint64 randomUint64( void ) { return ( ( (uint64) randomUint32() )<<32 ) | randomUint32(); } #endif
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