bitfield.hh (10400:0655a3d869ad) bitfield.hh (10537:47fe87b0cf97)
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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87 return mbits((uint64_t)-1LL, first, last);
88}
89
90/**
91 * Sign-extend an N-bit value to 64 bits.
92 */
93template <int N>
94inline
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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87 return mbits((uint64_t)-1LL, first, last);
88}
89
90/**
91 * Sign-extend an N-bit value to 64 bits.
92 */
93template <int N>
94inline
95int64_t
95uint64_t
96sext(uint64_t val)
97{
98 int sign_bit = bits(val, N-1, N-1);
99 return sign_bit ? (val | ~mask(N)) : val;
100}
101
102/**
103 * Return val with bits first to last set to bit_val

--- 111 unchanged lines hidden --- 		96sext(uint64_t val)
97{
98 int sign_bit = bits(val, N-1, N-1);
99 return sign_bit ? (val | ~mask(N)) : val;
100}
101
102/**
103 * Return val with bits first to last set to bit_val

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