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1.1 root 1: .TH QUINE 10.1 UCDS
2: .SH NAME
3: quine, cover, hazard \- logic programs
4: .SH SYNOPSIS
5: .B quine
6: .br
7: .B cover
8: [
9: .B -s
10: ]
11: .br
12: .B hazard
13: [
14: .BI - n
15: ] ...
16: .SH DESCRIPTION
17: .IR Quine , cover ,
18: and
19: .I hazard
20: are programs that read the standard input and write the standard
21: output, both in the format of
22: .IR minterm (10.5).
23: .PP
24: .I Quine
25: produces a Quine-McCluskey reduction of the input data.
26: .I Cover
27: does the covering problem, which is exponentially hard
28: and may not finish in reasonable time.
29: .B Cover -s
30: does not do the complete problem and goes faster.
31: .I Hazard
32: adds terms to eliminate internal hazards that can occur
33: in PAL's and PLA's. The hazard can occur when the form of the
34: equations is
35: .RI ( a & x )
36: |
37: .RI ( b &
38: .RI ! x ).
39: When
40: .I a
41: and
42: .I b
43: are both true
44: a glitch may appear on the output when
45: .I x
46: is changed.
47: .I Hazard
48: eliminates it by
49: adding another term
50: .RI ( a & b ).
51: If there are any
52: .BI - n
53: option flags for
54: .IR hazard ,
55: only those outputs whose symbols are in the set of
56: .IR n 's
57: will be modified by hazard, otherwise all outputs are
58: (possibly) modified.
59: .SH SEE ALSO
60: .IR lde (10.1),
61: .IR minterm (10.5),
62: .IR pal (10.1)
63: .SH FILES
64: .BI qtmp n
65: and
66: .BI bsort n
67: in the working directory for temporaries.
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