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XABEL 5.0, SYMGEN 5.0: pins are absent from symbol with istype 'reg,invert'


Record #371

Problem Title:
XABEL 5.0, SYMGEN 5.0: pins are absent from symbol with istype
'reg,invert'



Problem Description:



Solution 1:




In XABEL 5.0, if a signal is declared as a pin with istype 'reg,buffer' or
'reg,invert', the XABEL-generated XSF file will not have a pin listed for that
signal.  This means that SymGen will generate a symbol that is missing that
pin.

There are two workarounds:

  1. Change the istype to 'reg'.  Modify the equation for the signal to have
     inversion explicitly if the istype was 'reg,invert'. (reg_buffer is the
     same as reg)

  2. Add the pin manually to the symbol.  The underlying netlist is still
     valid; the signal in question just needs to be brought out.

This will be fixed in versions of XABEL beyond 5.00.




End of Record #371