Extended the "port" command with the option "renumber", which
forces all ports in a cell to be reordered in alphabetical order, which ensures that the output of "extract" is always the same (apart from coupling capacitance, which still ends up in randomized order due to the use of hashing based on memory address followed by iterating through the hash table).
This commit is contained in:
Tim Edwards
parent
13ab2c3e59
commit
807c33139d
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@ -1196,6 +1196,28 @@ portFindLabel(editDef, port, unique, nonEdit)
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return lab;
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}
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/*
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* ----------------------------------------------------------------------------
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*
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* complabel() --
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*
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* qsort() callback routine used by CmdPort when renumbering ports.
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* Simply do a string comparison on the two labels. There is no special
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* meaning to the lexigraphic ordering; it is meant only to enforce a
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* consistent and repeatable port order.
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*
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* ----------------------------------------------------------------------------
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*/
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int
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complabel(const void *one, const void *two)
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{
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Label *l1 = *((Label **)one);
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Label *l2 = *((Label **)two);
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return strcmp(l1->lab_text, l2->lab_text);
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}
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/*
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* ----------------------------------------------------------------------------
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*
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@ -1207,7 +1229,9 @@ portFindLabel(editDef, port, unique, nonEdit)
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* usage, below).
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*
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* Usage:
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* port make|makeall [num] [connect_direction(s)]
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* port make [num] [connect_direction(s)]
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* or
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* port makeall|renumber [connect_direction(s)]
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* or
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* port [name|num] class|use|shape|index [value]
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*
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@ -1248,7 +1272,8 @@ portFindLabel(editDef, port, unique, nonEdit)
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#define PORT_MAKEALL 9
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#define PORT_NAME 10
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#define PORT_REMOVE 11
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#define PORT_HELP 12
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#define PORT_RENUMBER 12
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#define PORT_HELP 13
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void
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CmdPort(w, cmd)
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@ -1279,6 +1304,7 @@ CmdPort(w, cmd)
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"makeall [index] [dir] turn all labels into ports",
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"name report the port name",
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"remove turn a port back into a label",
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"renumber renumber all ports",
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"help print this help information",
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NULL
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};
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@ -1437,7 +1463,8 @@ CmdPort(w, cmd)
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}
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}
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if ((option != PORT_LAST) && (option != PORT_MAKEALL) && (lab == NULL))
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if ((option != PORT_LAST) && (option != PORT_MAKEALL)
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&& (option != PORT_RENUMBER) && (lab == NULL))
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{
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/* Let "port remove" fail without complaining. */
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if (option != PORT_REMOVE)
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@ -1452,7 +1479,8 @@ CmdPort(w, cmd)
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/* Check for options that require label to be a port */
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if ((option != PORT_MAKE) && (option != PORT_MAKEALL)
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&& (option != PORT_EXISTS) && (option != PORT_LAST))
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&& (option != PORT_EXISTS) && (option != PORT_RENUMBER)
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&& (option != PORT_LAST))
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{
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/* label "lab" must already be a port */
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if (!(lab->lab_flags & PORT_DIR_MASK))
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@ -1466,8 +1494,9 @@ CmdPort(w, cmd)
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/* Check for options that cannot operate on a non-edit cell label */
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if (nonEdit)
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{
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if ((option == PORT_MAKE) || (option == PORT_MAKEALL) ||
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(option == PORT_REMOVE) || (argc == 3))
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if ((option == PORT_MAKE) || (option == PORT_MAKEALL)
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|| (option == PORT_REMOVE) || (option == PORT_RENUMBER)
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|| (argc == 3))
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{
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TxError("Cannot modify a port in an non-edit cell.\n");
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return;
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@ -1732,6 +1761,55 @@ CmdPort(w, cmd)
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editDef->cd_flags |= (CDMODIFIED | CDGETNEWSTAMP);
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break;
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case PORT_RENUMBER:
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/* Renumber ports in canonical order (by alphabetical
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* order of the label text).
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*/
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{
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int numlabels, n, p;
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Label **slablist, *tlab, *lastlab;
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extern int complabel();
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/* Create a sortable list of labels */
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numlabels = 0;
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for (lab = editDef->cd_labels; lab; lab = lab->lab_next)
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numlabels++;
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slablist = (Label **)mallocMagic(numlabels * sizeof(Label *));
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numlabels = 0;
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for (lab = editDef->cd_labels; lab; lab = lab->lab_next)
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{
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*(slablist + numlabels) = lab;
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numlabels++;
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}
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/* Sort the list */
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qsort(slablist, numlabels, sizeof(Label *), complabel);
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/* Number the ports by sorted order */
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p = 0;
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lastlab = NULL;
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for (n = 0; n < numlabels; n++)
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{
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tlab = *(slablist + n);
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if (tlab->lab_flags & PORT_DIR_MASK)
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{
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if (lastlab)
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if (!strcmp(lastlab->lab_text, tlab->lab_text))
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p--;
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tlab->lab_flags &= ~PORT_NUM_MASK;
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tlab->lab_flags |= p;
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lastlab = tlab;
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p++;
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}
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}
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/* Clean up */
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freeMagic((char *)slablist);
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}
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break;
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case PORT_MAKEALL:
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lab = editDef->cd_labels;
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// Fall through. . .
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