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#ifndef BITPACK_H_
#define BITPACK_H_
#include <stdint.h>
#include "assert_helpers.h"
/**
* Routines for marshalling 2-bit values into and out of 8-bit or
* 32-bit hosts
*/
static inline void pack_2b_in_8b(const int two, uint8_t& eight, const int off) {
assert_lt(two, 4);
assert_lt(off, 4);
eight |= (two << (off*2));
}
static inline int unpack_2b_from_8b(const uint8_t eight, const int off) {
assert_lt(off, 4);
return ((eight >> (off*2)) & 0x3);
}
static inline void pack_2b_in_32b(const int two, uint32_t& thirty2, const int off) {
assert_lt(two, 4);
assert_lt(off, 16);
thirty2 |= (two << (off*2));
}
static inline int unpack_2b_from_32b(const uint32_t thirty2, const int off) {
assert_lt(off, 16);
return ((thirty2 >> (off*2)) & 0x3);
}
#endif /*BITPACK_H_*/
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