S,
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ALLOT room and store the Forth string into data space as a packed string,
 leaving data space aligned; and leave the length and new body address. It
 is assumed that len is unsigned. An error is thrown if len is larger than
 the system parameter MAX_SCOUNT. "s-comma"
 
NOTE: MAX_SCOUNT is returned by    S" /SCOPY" ENVIRONMENT?
Perhaps this restriction should be removed in favor of the normal data space overflow error.
  
NOTE: S, is the same as STRING, in Wil Baden's Tool Belt, except it stores a packed string instead of a counted string.
 | 
  dstrings   ordinary primitive