mirror of
https://github.com/netwide-assembler/nasm.git
synced 2024-12-03 08:41:02 +08:00
9e6747ccac
Add copyright headers to the *.c/*.h files in the main directory. For files where I'm sure enough that we have all the approvals, I have given them the 2-BSD license, the others have been given the "LGPL for now" license header. Most of them can probably be changed after auditing. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
90 lines
3.3 KiB
C
90 lines
3.3 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"
|
|
|
|
/*
|
|
* Routines to manage a dynamic random access array of int64_ts which
|
|
* may grow in size to be more than the largest single malloc'able
|
|
* chunk.
|
|
*/
|
|
|
|
#define RAA_BLKSHIFT 15 /* 2**this many longs allocated at once */
|
|
#define RAA_BLKSIZE (1 << RAA_BLKSHIFT)
|
|
#define RAA_LAYERSHIFT 15 /* 2**this many _pointers_ allocated */
|
|
#define RAA_LAYERSIZE (1 << RAA_LAYERSHIFT)
|
|
|
|
typedef struct RAA RAA;
|
|
typedef union RAA_UNION RAA_UNION;
|
|
typedef struct RAA_LEAF RAA_LEAF;
|
|
typedef struct RAA_BRANCH RAA_BRANCH;
|
|
|
|
struct RAA {
|
|
/*
|
|
* Number of layers below this one to get to the real data. 0
|
|
* means this structure is a leaf, holding RAA_BLKSIZE real
|
|
* data items; 1 and above mean it's a branch, holding
|
|
* RAA_LAYERSIZE pointers to the next level branch or leaf
|
|
* structures.
|
|
*/
|
|
int layers;
|
|
|
|
/*
|
|
* Number of real data items spanned by one position in the
|
|
* `data' array at this level. This number is 0 trivially, for
|
|
* a leaf (level 0): for a level 1 branch it should be
|
|
* RAA_BLKSHIFT, and for a level 2 branch it's
|
|
* RAA_LAYERSHIFT+RAA_BLKSHIFT.
|
|
*/
|
|
int shift;
|
|
|
|
union RAA_UNION {
|
|
struct RAA_LEAF {
|
|
int64_t data[RAA_BLKSIZE];
|
|
} l;
|
|
struct RAA_BRANCH {
|
|
struct RAA *data[RAA_LAYERSIZE];
|
|
} b;
|
|
} u;
|
|
};
|
|
|
|
struct RAA *raa_init(void);
|
|
void raa_free(struct RAA *);
|
|
int64_t raa_read(struct RAA *, int32_t);
|
|
struct RAA *raa_write(struct RAA *r, int32_t posn, int64_t value);
|
|
|
|
#endif /* NASM_RAA_H */
|