man(1) Manual page archive

     XPAL(10.1)                                             XPAL(10.1)

          xpal - data preparation program for PAL's and PLA's

          cda/xpal [-option] [type[filename]]

          Xpal reads data from the standard input or filename in the
          form of minterm(10.6) and writes on the standard output in a
          form suitable for any of the pal/prom burners.

          The options are:

          -m manufacturer
               Specifies a manufacturer that will be output as a com-

          -t type
               Specifies a PAL type if not given by a .x line

          -l library
               Tells xpal where to look for library definitions.
               Defaults to /usr/ucds/lib/library.paddle.

          -v   Produce slightly verbose output (not harmful)

          -d   Produce debugging output

          -i   echoes the input

          -z   produces a zero checksum for SPRINT programmers

          -p   demands parsing; used in conjunction with -t, this can
               be used to debug new pal definitions.

          The output is JEDEC suitable for any number of JEDEC compat-
          ible programmers.  Xpal's principal advantage over pal is
          that the tables are now read in.  The type flag on the com-
          mand line or as given by the .x line in the lde file is used
          to address the correct tables.

          The numeric symbol of a term that corresponds to the output
          enable of a pin is 100 + pin_number by convention.  Just to
          be strange, the convention for the 22V10 is: 200 +
          pin_number for polarity, 300 + pin_number for architecture
          fuses and pins 25 and 26 are asynchronous reset and syn-
          chronous preset respectively.  Each programmable device has
          its own mapping as defined by the pal definition.

          The pals with X in their name use an additional convention.

     XPAL(10.1)                                             XPAL(10.1)

          Since quine can only handle and-or logic, and the X pals
          have two different sets of and-or logic driving the two
          inputs of an xor gate, those two terms are number 20 + out-
          put pin number and 70 + ditto.

          minterm(10.6), paddle(10.6)


          The pin naming convention is peculiar at best.