#include #define __STDC_LIMIT_MACROS #include #include #define ALIGN_BITS ( sizeof(void*) >> __UINT64_C( 1 ) ) #define BIT_BITS __UINT64_C( 3 ) #define BYTE_BITS __UINT64_C( 14 ) #define SLOT_BITS ( sizeof( void*) * 8 ) - ( ALIGN_BITS + BIT_BITS + BYTE_BITS ) #define BYTES_PER_SLOT __UINT64_C( 1 ) << BYTE_BITS #define TRACKING_SLOTS 8192 // max. 8192 for 4GB/32-bit machine int check_new( uintptr_t p ) { ptrdiff_t slot = ( p >> (BYTE_BITS + BIT_BITS + ALIGN_BITS) ); ptrdiff_t byte = ( p >> (ALIGN_BITS + BIT_BITS)) & __UINT64_C( 0x00003fff ) ptrdiff_t bit = ( p >> ALIGN_BITS) & __UINT64_C( 0x00000007 ); ptrdiff_t nop = p & __UINT64_C( 0x3 ); printf( "address: %p slot: %p byte: %4x bit: %4x nop:%x\n", p, slot, byte, bit, nop ); return 1; } void main( void ) { uintptr_t p; for( p = __UINT64_C( 123456 ); p < ( __UINT64_C( 1 ) << 34 ); p += ( __UINT64_C( 1 ) << 29 ) ) { check_new( p ); } }