QSE_map.xx-x86-gcc.h File Reference

QSE_map, X86 and GCC platform specific implementation. More...

Functions
static __inline int	QSE_mapScanf (QSE_map map)
	Finds the first set bit (LSB = bit 0) in the specified map.
static __inline int	QSE_mapScanr (QSE_map map)
	Finds the first set bit (LSB = bit 0) in the specified map.
static __inline int	QSE_mapScanF (QSE_map map)
	Finds the first set bit (MSB = bit 0) in the specified map.
static __inline int	QSE_mapScanR (QSE_map map)
	Finds the first set bit (MSB = bit 0) in the specified map.

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Detailed Description

QSE_map, X86 and GCC platform specific implementation.

Author:

JJRussell - russell@slac.stanford.edu

   CVS $Id: QSE_map.xx-x86-gcc.h,v 1.5 2006/02/22 01:24:42 russell Exp $

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Function Documentation

int QSE_mapScanF

(

QSE_map

map

)

[static]

Finds the first set bit (MSB = bit 0) in the specified map.

Returns:

Returns the bit number of the first set bit

Overview

This routine scans a 32 bit longword from right (LSB) to left (MSB) looking for the first bit set. If it finds a bit it returns a value in the range 0-31. The routine is not protected against 0 as an input and the result is undefined.

X86 Implementation

The Intel implementation is an 'bsf' instruction.

int QSE_mapScanf

(

QSE_map

map

)

[static]

Finds the first set bit (LSB = bit 0) in the specified map.

Returns:

Returns the bit number of the first set bit

Overview

This routine scans a 32 bit longword from right (LSB) to left (MSB) looking for the first bit set. If it finds a bit it returns a value in the range 0-31. The routine is not protected against 0 as an input and the result is undefined.

X86 Implementation

The Intel implementation is an 'bsf' instruction.

Referenced by QSE_calPrint(), QSE_ecalPrintTowers(), QSE_ecalTwrPrintFull(), and QSE_tkrPrint().

int QSE_mapScanR

(

QSE_map

map

)

[static]

Finds the first set bit (MSB = bit 0) in the specified map.

Returns:

Returns the bit number of the first set bit

Overview

This routine scans a 32 bit longword from left (MSB) to righ (MSB) looking for the first bit set. If it finds a bit it returns a value in the range 0-31. The routine is not protected against 0 as an input and the result is undefined.

X86 Implementation

The Intel implementation is an 'bsr' instruction.

Referenced by classify(), and getDisplayChar().

int QSE_mapScanr

(

QSE_map

map

)

[static]

Finds the first set bit (LSB = bit 0) in the specified map.

Returns:

Returns the bit number of the first set bit

Overview

This routine scans a 32 bit longword from left (MSB) to righ (MSB) looking for the first bit set. If it finds a bit it returns a value in the range 0-31. The routine is not protected against 0 as an input and the result is undefined.

X86 Implementation

The Intel implementation is an 'bsr' instruction.

Referenced by printTower().