CDF_acd_maps.h File Reference

Contains pre-canned maps for the ACD packing. More...

Defines
#define	_CDF_ACD_PAT_MAP(_n, _p)   (((_p) << 4) | _n)
	Composes a 16 bit value of a 12 bit pattern and 4 bit length This is used to compress the ACD.
#define	_CDF_ACD_PAT_MAP_N(_m)   ((_m) & 0xf)
	Extracts the length field from the map.
#define	_CDF_ACD_PAT_MAP_P(_m)   (((_m) >> 4) & 0xfff)
	Extracts the right justified pattern from the map.
#define	_CDF_ACD_PAT_MAP_STD
	Defines the ACD standard encoding map.

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Detailed Description

Contains pre-canned maps for the ACD packing.

Author:

JJRussell - russell@slac.stanford.edu

   CVS $Id: CDF_acd_maps.h,v 1.2 2006/11/19 15:42:19 russell Exp $

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Define Documentation

#define _CDF_ACD_PAT_MAP	(	_n,
		_p		)	(((_p) << 4) | _n)

Composes a 16 bit value of a 12 bit pattern and 4 bit length This is used to compress the ACD.

Returns:

The composed value

Parameters:

	_n	The length of the pattern in bits, must bit < 12
	_p	The pattern. The number of significant bits must < 12.

#define _CDF_ACD_PAT_MAP_N

(

_m

)

((_m) & 0xf)

Extracts the length field from the map.

Returns:

The extracted length field

Parameters:

_m

The map value

Referenced by acd_std_pack_pat32().

#define _CDF_ACD_PAT_MAP_P

(

_m

)

(((_m) >> 4) & 0xfff)

Extracts the right justified pattern from the map.

Returns:

The right justified pattern

Parameters:

_m

The map value

Referenced by acd_std_pack_pat32().