Changes in DSNAP$ 1R2D

 - Allow registers to be dumped as words, including ASCII & Fieldata.
 - Fix bug: 2nd and only repeated dump line could be flagged as having skipped.

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 Changes in DSNAP$ 1R2C

 - Add 'S' option to print SNAPID only, without level, address, time, etc.

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 Patched DSNAP$ 1R2B - 2012/08/13

 - D$SNAP proc would not always generate correctly in ASCII mode.

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 Patched DSNAP$ 1R2B - 2010/03/29

 - Fix bug that would dump wrong number of words per line with 'OFQJB' options.

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 Changes in DSNAP$ 1R2B

 - Add ability to specify SNAPID ACW with register, just as with snap area.
 - Add '$' option to D$SNAP call, to enable attaching a label to the DSNAP$
   packet, thus allowing the user to modify the snap area or SNAPID.

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 Changes in DSNAP$ 1R2A

 - Add BDI to call address in snap header.
 - Fix bug that could cause IGDM if snap ID is longer than 18 characters.

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 Changes in DSNAP$ 1R2

 - Allow snap ID to be up to 132 characters.
 - Add '0' option to start the numbering of dumped memory from 0.

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 Changes in DSNAP$ 1R1C

 - Add ability to combine M option with X, A, or R to limit output.
 - Add W option to pause DSNAP$ output in demand.

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 Changes in DSNAP$ 1R1B

 - Fix bug that could generate D or C MASM errors on D$SNAP calls.

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 Changes in DSNAP$ 1R1A

 - Add ability to specify ACW register (word count, address) on D$SNAP call.
 - Show DSNAP$ level on snap header line.