diff options
Diffstat (limited to 'src/base/bigint.hh')
| -rw-r--r-- | src/base/bigint.hh | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/base/bigint.hh b/src/base/bigint.hh new file mode 100644 index 000000000..aa60eeb04 --- /dev/null +++ b/src/base/bigint.hh @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2006 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Ali Saidi + */ + +#ifndef __BASE_BIGINT_HH__ +#define __BASE_BIGINT_HH__ +// Create a couple of large int types for atomic reads +struct m5_twin64_t { + uint64_t a; + uint64_t b; + inline m5_twin64_t& operator=(const uint64_t x) + { + a = x; + b = x; + return *this; + } +}; + +// This is for twin loads (two 64 bit values), not 1 128 bit value (as far as +// endian conversion is concerned! +typedef m5_twin64_t Twin64_t; + + +#endif // __BASE_BIGINT_HH__ + |