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bitmap.h
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bitmap.h
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/* bitmap.h - bit manipulation macros */
/* SimpleScalar(TM) Tool Suite
* Copyright (C) 1994-2003 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
* All Rights Reserved.
*
* THIS IS A LEGAL DOCUMENT, BY USING SIMPLESCALAR,
* YOU ARE AGREEING TO THESE TERMS AND CONDITIONS.
*
* No portion of this work may be used by any commercial entity, or for any
* commercial purpose, without the prior, written permission of SimpleScalar,
* LLC ([email protected]). Nonprofit and noncommercial use is permitted
* as described below.
*
* 1. SimpleScalar is provided AS IS, with no warranty of any kind, express
* or implied. The user of the program accepts full responsibility for the
* application of the program and the use of any results.
*
* 2. Nonprofit and noncommercial use is encouraged. SimpleScalar may be
* downloaded, compiled, executed, copied, and modified solely for nonprofit,
* educational, noncommercial research, and noncommercial scholarship
* purposes provided that this notice in its entirety accompanies all copies.
* Copies of the modified software can be delivered to persons who use it
* solely for nonprofit, educational, noncommercial research, and
* noncommercial scholarship purposes provided that this notice in its
* entirety accompanies all copies.
*
* 3. ALL COMMERCIAL USE, AND ALL USE BY FOR PROFIT ENTITIES, IS EXPRESSLY
* PROHIBITED WITHOUT A LICENSE FROM SIMPLESCALAR, LLC ([email protected]).
*
* 4. No nonprofit user may place any restrictions on the use of this software,
* including as modified by the user, by any other authorized user.
*
* 5. Noncommercial and nonprofit users may distribute copies of SimpleScalar
* in compiled or executable form as set forth in Section 2, provided that
* either: (A) it is accompanied by the corresponding machine-readable source
* code, or (B) it is accompanied by a written offer, with no time limit, to
* give anyone a machine-readable copy of the corresponding source code in
* return for reimbursement of the cost of distribution. This written offer
* must permit verbatim duplication by anyone, or (C) it is distributed by
* someone who received only the executable form, and is accompanied by a
* copy of the written offer of source code.
*
* 6. SimpleScalar was developed by Todd M. Austin, Ph.D. The tool suite is
* currently maintained by SimpleScalar LLC ([email protected]). US Mail:
* 2395 Timbercrest Court, Ann Arbor, MI 48105.
*
* Copyright (C) 1994-2003 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
*/
#ifndef BITMAP_H
#define BITMAP_H
/* BITMAPs:
BMAP: int * to an array of ints
SZ: number of ints in the bitmap
*/
/* declare a bitmap type */
#define BITMAP_SIZE(BITS) (((BITS)+31)/32)
#define BITMAP_TYPE(BITS, NAME) unsigned int (NAME)[BITMAP_SIZE(BITS)]
typedef unsigned int BITMAP_ENT_TYPE;
typedef unsigned int *BITMAP_PTR_TYPE;
/* set entire bitmap */
#define BITMAP_SET_MAP(BMAP, SZ) \
{ int i; for (i=0; i<(SZ); i++) (BMAP)[i] = 0xffffffff; }
/* clear entire bitmap */
#define BITMAP_CLEAR_MAP(BMAP, SZ) \
{ int i; for (i=0; i<(SZ); i++) (BMAP)[i] = 0; }
/* set bit BIT in bitmap BMAP, returns BMAP */
#define BITMAP_SET(BMAP, SZ, BIT) \
(((BMAP)[(BIT)/32] |= (1 << ((BIT) % 32))), (BMAP))
/* clear bit BIT in bitmap BMAP, returns BMAP */
#define BITMAP_CLEAR(BMAP, SZ, BIT) \
(((BMAP)[(BIT)/32] &= ~(1 << ((BIT) % 32))), (BMAP))
/* copy bitmap SRC to DEST */
#define BITMAP_COPY(DESTMAP, SRCMAP, SZ) \
{ int i; for (i=0; i<(SZ); i++) (DESTMAP)[i] = (SRCMAP)[i]; }
/* store bitmap B2 OP B3 into B1 */
#define __BITMAP_OP(B1, B2, B3, SZ, OP) \
{ int i; for (i=0; i<(SZ); i++) (B1)[i] = (B2)[i] OP (B3)[i]; }
/* store bitmap B2 | B3 into B1 */
#define BITMAP_IOR(B1, B2, B3, SZ) \
__BITMAP_OP(B1, B2, B3, SZ, |)
/* store bitmap B2 ^ B3 into B1 */
#define BITMAP_XOR(B1, B2, B3, SZ) \
__BITMAP_OP(B1, B2, B3, SZ, ^)
/* store bitmap B2 & B3 into B1 */
#define BITMAP_AND(B1, B2, B3, SZ) \
__BITMAP_OP(B1, B2, B3, SZ, &)
/* store ~B2 into B1 */
#define BITMAP_NOT(B1, B2, SZ) \
{ int i; for (i=0; i<(SZ); i++) (B1)[i] = ~((B2)[i]); }
/* return non-zero if bitmap is empty */
#define BITMAP_EMPTY_P(BMAP, SZ) \
({ int i, res=0; for (i=0; i<(SZ); i++) res |= (BMAP)[i]; !res; })
/* return non-zero if the intersection of bitmaps B1 and B2 is non-empty */
#define BITMAP_DISJOINT_P(B1, B2, SZ) \
({ int i, res=0; for (i=0; i<(SZ); i++) res |= (B1)[i] & (B2)[i]; !res; })
/* return non-zero if bit BIT is set in bitmap BMAP */
#define BITMAP_SET_P(BMAP, SZ, BIT) \
(((BMAP)[(BIT)/32] & (1 << ((BIT) % 32))) != 0)
/* return non-zero if bit BIT is clear in bitmap BMAP */
#define BITMAP_CLEAR_P(BMAP, SZ, BIT) \
(!BMAP_SET_P((BMAP), (SZ), (BIT)))
/* count the number of bits set in BMAP */
#define BITMAP_COUNT_ONES(BMAP, SZ) \
({ \
int i, j, n = 0; \
for (i = 0; i < (SZ) ; i++) \
{ \
unsigned int word = (BMAP)[i]; \
for (j=0; j < (sizeof(unsigned int)*8); j++) \
{ \
unsigned int new_val, old_val = word; \
word >>= 1; \
new_val = word << 1; \
if (old_val != new_val) \
n++; \
} \
} \
n; \
})
#endif /* BITMAP_H */