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There is an article on the use of Pascal's Generic procedure in the latest
(April) issue of MacTutor.  It explains in detail how to set up the parameters
to the routine and gives as an example a routine which changes the modem port
communication parameters.

According to the article, Generic is in effect pre-declared as follows:
  procedure Generic (InstructionWord:integer; VAR Registers:RegRcd);

RegRcd is a structure with 13 32-bit values:

var
  Registers:record
    A0,A1,A2,A3,A4:^char;
    D0,D1,D2,D3,D4,D5,D6,D7:longint
  end;

The register values are loaded into the 68K registers before the one-word 
instruction is executed.  The Register structure is updated with the values
from the 68K registers before Generic returns to your program.

For further information, consult the article.  MacTutor is obtainable from:
	MacTutor
	P. O. Box 846
	Placentia, CA  92670
	($24/year, in the U.S.)
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