#!/bin/python3

jedec_file = "sac.jed"

# map index to pin number

# PAL16L8 map - no pin 19 or 12
pin_map = [ 2, 1, 3, 18, 4, 17, 5, 16, 6, 15, 7, 14, 8, 13, 9, 11 ] 

# On this project, everything after "wait" is an output
pin_name_str = "xxx addr* iowr* iord* a9 a8 a7 a3 a2 a1 ggg wait iordy enp-161 clr-161 cable(10)-2E0 u2io cable(9)-read cable(22)-write u1io"

# only relevant for output pins.  Do we invert the logic?
flip = [ False, False, False, False, False, False, False, False, False, False,
        False, False, False, False, False, False, False, False, False, False ]

pin_names = pin_name_str.split()

# Called once per output pin with an array of 8 lines
def process ( out, group ) :

    xout = 20 - out
    oname = pin_names[xout]

    #alines = []
    olist = []

    for l in group:
        if l == "11111111111111111111111111111111" :
            continue
        if l == "00000000000000000000000000000000" :
            continue

        alist = []
        #print ( l )

        #print ( "o-", nout, ' ',  sep='', end='' )
        #print ( name, ' = ',  sep='', end='' )
        #rv = name + " = "

        # process a single line
        xin = 0
        inv = False
        for cc in l :
            if cc == '0' :
                #print ( "new cc" )
                pin = pin_map[xin]
                name = pin_names[pin]
                #print ( 'I', pin,  sep='', end='' )
                #print ( name,  sep='', end='' )
                if inv :
                    #print ( '*', end='' )
                    alist.append ( name + '*' )
                else :
                    alist.append ( name )

                #print ( " ", end='' )

            if not inv :
                inv = True
            else :
                inv = False
                xin += 1


        #aline = ' + '.join ( alist )
        #olist.append ( aline )
        olist.append ( alist )

    if len(olist) == 1 :
        print ( oname + " = " + ' + '.join ( olist[0] ) )
        return

    oolist = []
    for o in olist :
        if len(o) == 1 :
            oolist.append ( o[0] )
        else :
            aa = ' + '.join ( o )
            oolist.append ( '( ' + aa + ' )' )

    print ( oname + " = " + ' | '.join ( oolist ) )

    #for a in alines:
    #    print ( a );

# ----------

f = open ( jedec_file, 'r')
lines = f.readlines()
f.close ()

skip = True
count = 0
group = []
out = 0

for line in lines:
    l = line.strip()
    if l[-1] == "*" :
        l = l[:-1]
    if skip and l == "L0000" :
        skip = False
        continue
    if skip :
        continue
    if l == "L2048" :
        break
    group.append ( l )
    count += 1
    if count == 8 :
        out += 1
        process ( out, group )
        group = []
        count = 0