903ea54857
Make the RAA infrastructure a bit cleaner, make it support 64-bit indicies, and reduce the memory overhead of a sparse or small RAA -- the old code would allocate a *minimum* of 256K for each RAA. The new code reduces that to 16K, and will not mandatorily allocate an entry in the zero position. The new shift, 11, was chosen so that a 32-bit RAA value will need 3 layers and a 64-bit value 6 layers, without excessive waste. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
/* ----------------------------------------------------------------------- *
|
|
*
|
|
* Copyright 1996-2009 The NASM Authors - All Rights Reserved
|
|
* See the file AUTHORS included with the NASM distribution for
|
|
* the specific copyright holders.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
#ifndef NASM_RAA_H
|
|
#define NASM_RAA_H 1
|
|
|
|
#include "compiler.h"
|
|
|
|
struct RAA;
|
|
typedef uint64_t raaindex;
|
|
|
|
#define raa_init() NULL
|
|
void raa_free(struct RAA *);
|
|
int64_t raa_read(struct RAA *, raaindex);
|
|
void *raa_read_ptr(struct RAA *, raaindex);
|
|
struct RAA * never_null raa_write(struct RAA *r, raaindex posn, int64_t value);
|
|
struct RAA * never_null raa_write_ptr(struct RAA *r, raaindex posn, void *value);
|
|
|
|
#endif /* NASM_RAA_H */
|