EFtypes.h: new header file to provide types for extraction subsystem
This is needed to allow K&R to be removed and struct prototypes to exist that have fully declared (argument) types. It maybe necessary (in the future) to have public types and module internal type in separate header files, but it is unclear if such a clear split exists. Copyright plate taken from extflat.h
This commit is contained in:
Darryl L. Miles
parent
f031d16f50
commit
05876c63d2
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@ -0,0 +1,316 @@
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/*
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* EFtypes.h --
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*
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* Internal definitions for the procedures to flatten hierarchical
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* (.ext) circuit extraction files.
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*
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* *********************************************************************
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* * Copyright (C) 1985, 1990 Regents of the University of California. *
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* * Permission to use, copy, modify, and distribute this *
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* * software and its documentation for any purpose and without *
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* * fee is hereby granted, provided that the above copyright *
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* * notice appear in all copies. The University of California *
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* * makes no representations about the suitability of this *
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* * software for any purpose. It is provided "as is" without *
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* * express or implied warranty. Export of this software outside *
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* * of the United States of America may require an export license. *
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* *********************************************************************
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*
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*/
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#ifndef _MAGIC__EXTFLAT__EFTYPES_H
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#define _MAGIC__EXTFLAT__EFTYPES_H
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typedef unsigned char U_char;
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/*
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* Arguments to EFFlatBuild().
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*/
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#define EF_FLATNODES 0x01 /* Flatten nodes */
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#define EF_FLATCAPS 0x02 /* Flatten capacitors */
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#define EF_FLATRESISTS 0x04 /* Flatten resistors */
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#define EF_FLATDISTS 0x08 /* Flatten distances */
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#define EF_NOFLATSUBCKT 0x10 /* Don't flatten standard cells */
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#define EF_NONAMEMERGE 0x20 /* Don't merge unconnected nets */
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/* with the same name. */
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#define EF_WARNABSTRACT 0x40 /* Warn if subcell is abstract */
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/* Flags to control output of node names. Stored in EFOutputFlags */
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#define EF_TRIM_MASK 0x1f /* Mask for handling name trimming */
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#define EF_TRIMGLOB 0x01 /* Delete trailing '!' from names */
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#define EF_TRIMLOCAL 0x02 /* Delete trailing '#' from names */
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#define EF_CONVERTCOMMA 0x04 /* Change ',' to '|' in names, else remove */
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#define EF_CONVERTEQUAL 0x08 /* Change '=' to ':' in names, else remove */
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#define EF_CONVERTBRACKETS 0x10 /* Change '[' and ']' to '_' in names */
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#define EF_SHORT_MASK 0x60 /* Mask for handling port shorts */
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#define EF_SHORT_NONE 0x00 /* Shorted ports are merged */
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#define EF_SHORT_R 0x20 /* Shorted ports separated with 0 ohm resistor */
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#define EF_SHORT_V 0x40 /* Shorted ports separated with 0 volt source */
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/*
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* capacitance type now set to float
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*/
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typedef float EFCapValue;
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/* ------------------------ Hierarchical names ------------------------ */
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/*
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* One of the biggest consumers of memory space when flattening a circuit
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* are the full hierarchical names of all nodes. Most of this space is
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* wasted since it's redundant. Also, a lot of time is spent comparing
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* long names whose initial components are identical.
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*
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* The following structure allows hierarchical names to be represented
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* with sharing. Names are represented as a sequence of components,
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* from the lowest level of the hierarchy pointing back toward the root.
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* Hence, comparisons are likely to detect differences between names
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* early on. Second, many children can share the same parent, so
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* storage space should be comparable to that needed for an unflattened
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* hierarchy (with arrays flattened, however).
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*/
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typedef struct hiername
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{
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struct hiername *hn_parent; /* Back-pointer toward root */
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int hn_hash; /* For speed in hashing */
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char hn_name[4]; /* String is allocated here */
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} HierName;
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/*
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* Size of a HierName big enough to hold a string containing
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* n bytes (not including the NULL byte).
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*/
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#define HIERNAMESIZE(n) ((n) + sizeof (HierName) - 3)
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/* Indicates where the HierName was allocated: passed to EFHNFree() */
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#define HN_ALLOC 0 /* Normal name (FromStr) */
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#define HN_CONCAT 1 /* Concatenation of two HierNames */
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#define HN_GLOBAL 2 /* Global name */
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#define HN_FROMUSE 3 /* From a cell use */
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/* ----------------------- Node attribute lists ----------------------- */
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typedef struct efattr
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{
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struct efattr *efa_next; /* Next in list */
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Rect efa_loc; /* Location of attr label */
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int efa_type; /* Tile type attr attached to */
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char efa_text[4]; /* String is allocated here */
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} EFAttr;
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/*
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* Size of an EFAttr big enough to hold a string containing
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* n bytes (not including the NULL byte).
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*/
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#define ATTRSIZE(n) ((n) + sizeof (EFAttr) - 3)
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/* ------------------- Hierarchical and flat nodes -------------------- */
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/*
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* Each entry in the a nodename hash table points to a EFNodeName.
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* Several EFNodeNames may point to the same EFNode. Such EFNodeNames
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* are linked into a NULL-terminated list by the name_next pointers.
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* The first name in this list, pointed to by the efnode_name field of
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* the EFNode they all point to, is the canonical name for this node.
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*
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* The name_hier field points to the HierName for this node, which
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* will have only a single component for EFNodes within a Def, but
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* multiple components for hierarchical node names.
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*/
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typedef struct efnn
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{
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struct efnode *efnn_node; /* Corresponding node */
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struct efnn *efnn_next; /* Next name for this node */
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HierName *efnn_hier; /* HierName for this node */
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int efnn_port; /* Port number for this node */
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unsigned short efnn_refc; /* #times referenced in hash */
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} EFNodeName;
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/*
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* Both hierarchical and flat nodes use the same structure. Hierarchical
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* nodes appear along with each cell def. Flat nodes are pointed to by
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* the global hash table.
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*
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* Hierarchical nodes are linked in a doubly-linked list with all
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* other nodes in the same cell, and flat nodes are similarly linked
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* with all other flat nodes in the circuit. The list is doubly
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* linked to allow nodes to be deleted easily when it is necessary
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* to merge two nodes into a single node.
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*
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* There is a third way in which a node can exist if only its name is
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* of interest, namely as an EFNodeHdr. The first part of an EFNode
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* is an EFNodeHdr.
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*/
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/* Represents perimeter and area for a resistance class */
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typedef struct
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{
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int pa_area;
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int pa_perim;
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} EFPerimArea;
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typedef struct efnhdr
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{
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int efnhdr_flags; /* See below */
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EFNodeName *efnhdr_name; /* Canonical name for this node, this is a ptr
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* to the first element in a null-terminated
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* list of all the EFNodeNames for this node.
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*/
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struct efnhdr *efnhdr_next; /* Next node in list */
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struct efnhdr *efnhdr_prev; /* Previous node in list */
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} EFNodeHdr;
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/* Node flags */
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/*
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* If set, this node was killed and neither it nor anything connected
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* to it should be output. There should have been a new, identical
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* structure in the input that was connected to the new node.
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*/
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#define EF_KILLED 0x01
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/*
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* If set, this node was allocated as a substrate terminal for a
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* dev, and so should be automatically merged with nodes of the
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* same name after all nodes have been flattened, rather than
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* complaining about it being unconnected.
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*/
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#define EF_DEVTERM 0x02
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/*
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* This can be used as a general-purpose flag. It is used by
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* the LEF module to indicate that a node is a "special" net.
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*/
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#define EF_SPECIAL 0x04
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/*
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* If set, this node is a subcircuit port and should be treated
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* accordingly when writing netlist output. The port number is
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* encoded in the efNodeName structure, since there may be
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* multiple ports per node (for example, a thru route).
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*/
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#define EF_PORT 0x08
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/*
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* Flag ports of a top-level cell in addition to setting EF_PORT
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*/
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#define EF_TOP_PORT 0x10
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/*
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* This is used when a node is a substrate node with a local
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* node name, making it an implicitly-defined port. It differs
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* from EF_DEVTERM in that EF_DEVTERM includes global substrate
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* nodes, which are not declared ports.
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*/
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#define EF_SUBS_PORT 0x20
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/*
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* EF_SUBS_NODE is defined for substrate nodes defined in the
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* .ext file.
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*/
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#define EF_SUBS_NODE 0x40
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/*
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* EF_GLOB_SUBS_NODE is set for the node declared on the "substrate"
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* line of the .ext file as the global default substrate node.
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*/
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#define EF_GLOB_SUBS_NODE 0x80
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extern int efNumResistClasses; /* Number of resistance classes in efResists */
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typedef struct efnode
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{
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EFNodeHdr efnode_hdr; /* See above */
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#define efnode_name efnode_hdr.efnhdr_name
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#define efnode_next efnode_hdr.efnhdr_next
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#define efnode_prev efnode_hdr.efnhdr_prev
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#define efnode_flags efnode_hdr.efnhdr_flags
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EFCapValue efnode_cap; /* Total capacitance to ground for this node */
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int efnode_type; /* Index into type table for node */
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int efnode_num; /* Number of items in efnode_hdr list */
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Rect efnode_loc; /* Location of a 1x1 rect contained in this
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* node. This information is provided in the
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* .ext file so it will be easy to map between
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* node names and locations.
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*/
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LinkedRect *efnode_disjoint; /* List of disjoint node locations, created
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* if EFSaveLocs is TRUE.
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*/
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EFAttr *efnode_attrs; /* Node attribute list */
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ClientData efnode_client; /* For hire */
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EFPerimArea efnode_pa[1]; /* Dummy; each node actually has
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* efNumResistClasses array elements
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* allocated to it.
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*/
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} EFNode;
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/* -------------------------- Devices ----------------------------- */
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/*
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* Each device can contain several terminals.
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* Each terminal is described by the following structure.
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* We use a EFNode pointer for the terminal to which a device connects;
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* this assumes that devices appear after all the nodes for a cell.
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*/
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typedef struct devterm
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{
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EFNode *dterm_node; /* Node to which we're connected */
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char *dterm_attrs; /* Attribute list */
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int dterm_length; /* Length of terminal connection to gate */
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} DevTerm;
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/*
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* Device itself.
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* The dev_substrate and dev_type pointers are actually pointer into shared
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* tables of names, rather than being individually allocated for each
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* transistor.
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*/
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typedef struct parm
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{
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char parm_type[2];
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char *parm_name;
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double parm_scale;
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int parm_offset;
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struct parm *parm_next;
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} DevParam;
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typedef struct dev
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{
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struct dev *dev_next; /* Next device in def */
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U_char dev_class; /* Device class (see extract/extract.h) */
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U_char dev_type; /* Index into device type table */
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U_char dev_nterm; /* Number of terminals in device */
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EFNode *dev_subsnode; /* Substrate node */
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Rect dev_rect; /* 1x1 rectangle inside device */
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/* Most device types use only one or two of these, but subcircuits */
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/* may keep all values to pass along as parameters. */
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float dev_cap; /* Capacitance for class "cap" or subckt */
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float dev_res; /* Resistance for class "res" or subckt */
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int dev_area;
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int dev_perim;
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int dev_length;
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int dev_width;
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DevParam *dev_params; /* List of subcircuit parameters to output */
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DevTerm dev_terms[1]; /* Terminals. The actual number will depend
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* on dev_nterm above, so the size of this
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* structure will vary.
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*/
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} Dev;
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/* Size of a Dev structure for 'n' terminals (including the "gate") */
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#define DevSize(n) (sizeof (Dev) + ((n)-1)*sizeof (DevTerm))
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/* -------------------------------------------------------------------- */
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/*
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* A big number, used for thresholds for capacitance and resistance
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* when no processing is desired (NOTE: Probably should be using
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* C99 "INFINITY" here instead).
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*/
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#define INFINITE_THRESHOLD (((unsigned int) (~0)) >> 1)
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#define INFINITE_THRESHOLD_F ((EFCapValue)(1.0E38))
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#define IS_FINITE_F(a) (((EFCapValue)(a)) != INFINITE_THRESHOLD_F)
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/* Max filename length */
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#define FNSIZE 1024
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#endif /* _MAGIC__EXTFLAT__EFTYPES_H */
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@ -24,295 +24,7 @@
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#include "utils/magic.h"
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typedef unsigned char U_char;
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/*
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* Arguments to EFFlatBuild().
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*/
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#define EF_FLATNODES 0x01 /* Flatten nodes */
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#define EF_FLATCAPS 0x02 /* Flatten capacitors */
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#define EF_FLATRESISTS 0x04 /* Flatten resistors */
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#define EF_FLATDISTS 0x08 /* Flatten distances */
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#define EF_NOFLATSUBCKT 0x10 /* Don't flatten standard cells */
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#define EF_NONAMEMERGE 0x20 /* Don't merge unconnected nets */
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/* with the same name. */
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#define EF_WARNABSTRACT 0x40 /* Warn if subcell is abstract */
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/* Flags to control output of node names. Stored in EFOutputFlags */
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#define EF_TRIM_MASK 0x1f /* Mask for handling name trimming */
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#define EF_TRIMGLOB 0x01 /* Delete trailing '!' from names */
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#define EF_TRIMLOCAL 0x02 /* Delete trailing '#' from names */
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#define EF_CONVERTCOMMA 0x04 /* Change ',' to '|' in names, else remove */
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#define EF_CONVERTEQUAL 0x08 /* Change '=' to ':' in names, else remove */
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#define EF_CONVERTBRACKETS 0x10 /* Change '[' and ']' to '_' in names */
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#define EF_SHORT_MASK 0x60 /* Mask for handling port shorts */
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#define EF_SHORT_NONE 0x00 /* Shorted ports are merged */
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#define EF_SHORT_R 0x20 /* Shorted ports separated with 0 ohm resistor */
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#define EF_SHORT_V 0x40 /* Shorted ports separated with 0 volt source */
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/*
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* capacitance type now set to float
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*/
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typedef float EFCapValue;
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/* ------------------------ Hierarchical names ------------------------ */
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/*
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* One of the biggest consumers of memory space when flattening a circuit
|
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* are the full hierarchical names of all nodes. Most of this space is
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* wasted since it's redundant. Also, a lot of time is spent comparing
|
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* long names whose initial components are identical.
|
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*
|
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* The following structure allows hierarchical names to be represented
|
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* with sharing. Names are represented as a sequence of components,
|
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* from the lowest level of the hierarchy pointing back toward the root.
|
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* Hence, comparisons are likely to detect differences between names
|
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* early on. Second, many children can share the same parent, so
|
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* storage space should be comparable to that needed for an unflattened
|
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* hierarchy (with arrays flattened, however).
|
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*/
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typedef struct hiername
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{
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struct hiername *hn_parent; /* Back-pointer toward root */
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int hn_hash; /* For speed in hashing */
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char hn_name[4]; /* String is allocated here */
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} HierName;
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/*
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* Size of a HierName big enough to hold a string containing
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* n bytes (not including the NULL byte).
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*/
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#define HIERNAMESIZE(n) ((n) + sizeof (HierName) - 3)
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/* Indicates where the HierName was allocated: passed to EFHNFree() */
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#define HN_ALLOC 0 /* Normal name (FromStr) */
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#define HN_CONCAT 1 /* Concatenation of two HierNames */
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#define HN_GLOBAL 2 /* Global name */
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#define HN_FROMUSE 3 /* From a cell use */
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/* ----------------------- Node attribute lists ----------------------- */
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typedef struct efattr
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{
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struct efattr *efa_next; /* Next in list */
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Rect efa_loc; /* Location of attr label */
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int efa_type; /* Tile type attr attached to */
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char efa_text[4]; /* String is allocated here */
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} EFAttr;
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/*
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* Size of an EFAttr big enough to hold a string containing
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* n bytes (not including the NULL byte).
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*/
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#define ATTRSIZE(n) ((n) + sizeof (EFAttr) - 3)
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/* ------------------- Hierarchical and flat nodes -------------------- */
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/*
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* Each entry in the a nodename hash table points to a EFNodeName.
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* Several EFNodeNames may point to the same EFNode. Such EFNodeNames
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* are linked into a NULL-terminated list by the name_next pointers.
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* The first name in this list, pointed to by the efnode_name field of
|
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* the EFNode they all point to, is the canonical name for this node.
|
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*
|
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* The name_hier field points to the HierName for this node, which
|
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* will have only a single component for EFNodes within a Def, but
|
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* multiple components for hierarchical node names.
|
||||
*/
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typedef struct efnn
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{
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struct efnode *efnn_node; /* Corresponding node */
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struct efnn *efnn_next; /* Next name for this node */
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HierName *efnn_hier; /* HierName for this node */
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int efnn_port; /* Port number for this node */
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unsigned short efnn_refc; /* #times referenced in hash */
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} EFNodeName;
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|
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/*
|
||||
* Both hierarchical and flat nodes use the same structure. Hierarchical
|
||||
* nodes appear along with each cell def. Flat nodes are pointed to by
|
||||
* the global hash table.
|
||||
*
|
||||
* Hierarchical nodes are linked in a doubly-linked list with all
|
||||
* other nodes in the same cell, and flat nodes are similarly linked
|
||||
* with all other flat nodes in the circuit. The list is doubly
|
||||
* linked to allow nodes to be deleted easily when it is necessary
|
||||
* to merge two nodes into a single node.
|
||||
*
|
||||
* There is a third way in which a node can exist if only its name is
|
||||
* of interest, namely as an EFNodeHdr. The first part of an EFNode
|
||||
* is an EFNodeHdr.
|
||||
*/
|
||||
|
||||
/* Represents perimeter and area for a resistance class */
|
||||
typedef struct
|
||||
{
|
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int pa_area;
|
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int pa_perim;
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} EFPerimArea;
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|
||||
typedef struct efnhdr
|
||||
{
|
||||
int efnhdr_flags; /* See below */
|
||||
EFNodeName *efnhdr_name; /* Canonical name for this node, this is a ptr
|
||||
* to the first element in a null-terminated
|
||||
* list of all the EFNodeNames for this node.
|
||||
*/
|
||||
struct efnhdr *efnhdr_next; /* Next node in list */
|
||||
struct efnhdr *efnhdr_prev; /* Previous node in list */
|
||||
} EFNodeHdr;
|
||||
|
||||
/* Node flags */
|
||||
/*
|
||||
* If set, this node was killed and neither it nor anything connected
|
||||
* to it should be output. There should have been a new, identical
|
||||
* structure in the input that was connected to the new node.
|
||||
*/
|
||||
#define EF_KILLED 0x01
|
||||
|
||||
/*
|
||||
* If set, this node was allocated as a substrate terminal for a
|
||||
* dev, and so should be automatically merged with nodes of the
|
||||
* same name after all nodes have been flattened, rather than
|
||||
* complaining about it being unconnected.
|
||||
*/
|
||||
#define EF_DEVTERM 0x02
|
||||
|
||||
/*
|
||||
* This can be used as a general-purpose flag. It is used by
|
||||
* the LEF module to indicate that a node is a "special" net.
|
||||
*/
|
||||
#define EF_SPECIAL 0x04
|
||||
/*
|
||||
* If set, this node is a subcircuit port and should be treated
|
||||
* accordingly when writing netlist output. The port number is
|
||||
* encoded in the efNodeName structure, since there may be
|
||||
* multiple ports per node (for example, a thru route).
|
||||
*/
|
||||
#define EF_PORT 0x08
|
||||
/*
|
||||
* Flag ports of a top-level cell in addition to setting EF_PORT
|
||||
*/
|
||||
#define EF_TOP_PORT 0x10
|
||||
/*
|
||||
* This is used when a node is a substrate node with a local
|
||||
* node name, making it an implicitly-defined port. It differs
|
||||
* from EF_DEVTERM in that EF_DEVTERM includes global substrate
|
||||
* nodes, which are not declared ports.
|
||||
*/
|
||||
#define EF_SUBS_PORT 0x20
|
||||
/*
|
||||
* EF_SUBS_NODE is defined for substrate nodes defined in the
|
||||
* .ext file.
|
||||
*/
|
||||
#define EF_SUBS_NODE 0x40
|
||||
/*
|
||||
* EF_GLOB_SUBS_NODE is set for the node declared on the "substrate"
|
||||
* line of the .ext file as the global default substrate node.
|
||||
*/
|
||||
#define EF_GLOB_SUBS_NODE 0x80
|
||||
|
||||
extern int efNumResistClasses; /* Number of resistance classes in efResists */
|
||||
|
||||
typedef struct efnode
|
||||
{
|
||||
EFNodeHdr efnode_hdr; /* See above */
|
||||
#define efnode_name efnode_hdr.efnhdr_name
|
||||
#define efnode_next efnode_hdr.efnhdr_next
|
||||
#define efnode_prev efnode_hdr.efnhdr_prev
|
||||
#define efnode_flags efnode_hdr.efnhdr_flags
|
||||
|
||||
EFCapValue efnode_cap; /* Total capacitance to ground for this node */
|
||||
int efnode_type; /* Index into type table for node */
|
||||
int efnode_num; /* Number of items in efnode_hdr list */
|
||||
Rect efnode_loc; /* Location of a 1x1 rect contained in this
|
||||
* node. This information is provided in the
|
||||
* .ext file so it will be easy to map between
|
||||
* node names and locations.
|
||||
*/
|
||||
LinkedRect *efnode_disjoint; /* List of disjoint node locations, created
|
||||
* if EFSaveLocs is TRUE.
|
||||
*/
|
||||
EFAttr *efnode_attrs; /* Node attribute list */
|
||||
ClientData efnode_client; /* For hire */
|
||||
EFPerimArea efnode_pa[1]; /* Dummy; each node actually has
|
||||
* efNumResistClasses array elements
|
||||
* allocated to it.
|
||||
*/
|
||||
} EFNode;
|
||||
|
||||
/* -------------------------- Devices ----------------------------- */
|
||||
|
||||
/*
|
||||
* Each device can contain several terminals.
|
||||
* Each terminal is described by the following structure.
|
||||
* We use a EFNode pointer for the terminal to which a device connects;
|
||||
* this assumes that devices appear after all the nodes for a cell.
|
||||
*/
|
||||
typedef struct devterm
|
||||
{
|
||||
EFNode *dterm_node; /* Node to which we're connected */
|
||||
char *dterm_attrs; /* Attribute list */
|
||||
int dterm_length; /* Length of terminal connection to gate */
|
||||
} DevTerm;
|
||||
|
||||
/*
|
||||
* Device itself.
|
||||
* The dev_substrate and dev_type pointers are actually pointer into shared
|
||||
* tables of names, rather than being individually allocated for each
|
||||
* transistor.
|
||||
*/
|
||||
|
||||
typedef struct parm
|
||||
{
|
||||
char parm_type[2];
|
||||
char *parm_name;
|
||||
double parm_scale;
|
||||
int parm_offset;
|
||||
struct parm *parm_next;
|
||||
} DevParam;
|
||||
|
||||
typedef struct dev
|
||||
{
|
||||
struct dev *dev_next; /* Next device in def */
|
||||
U_char dev_class; /* Device class (see extract/extract.h) */
|
||||
U_char dev_type; /* Index into device type table */
|
||||
U_char dev_nterm; /* Number of terminals in device */
|
||||
EFNode *dev_subsnode; /* Substrate node */
|
||||
Rect dev_rect; /* 1x1 rectangle inside device */
|
||||
|
||||
/* Most device types use only one or two of these, but subcircuits */
|
||||
/* may keep all values to pass along as parameters. */
|
||||
float dev_cap; /* Capacitance for class "cap" or subckt */
|
||||
float dev_res; /* Resistance for class "res" or subckt */
|
||||
int dev_area;
|
||||
int dev_perim;
|
||||
int dev_length;
|
||||
int dev_width;
|
||||
DevParam *dev_params; /* List of subcircuit parameters to output */
|
||||
DevTerm dev_terms[1]; /* Terminals. The actual number will depend
|
||||
* on dev_nterm above, so the size of this
|
||||
* structure will vary.
|
||||
*/
|
||||
} Dev;
|
||||
|
||||
/* Size of a Dev structure for 'n' terminals (including the "gate") */
|
||||
#define DevSize(n) (sizeof (Dev) + ((n)-1)*sizeof (DevTerm))
|
||||
|
||||
/* -------------------------------------------------------------------- */
|
||||
|
||||
/*
|
||||
* A big number, used for thresholds for capacitance and resistance
|
||||
* when no processing is desired (NOTE: Probably should be using
|
||||
* C99 "INFINITY" here instead).
|
||||
*/
|
||||
#define INFINITE_THRESHOLD (((unsigned int) (~0)) >> 1)
|
||||
#define INFINITE_THRESHOLD_F ((EFCapValue)(1.0E38))
|
||||
#define IS_FINITE_F(a) (((EFCapValue)(a)) != INFINITE_THRESHOLD_F)
|
||||
|
||||
/* Max filename length */
|
||||
#define FNSIZE 1024
|
||||
#include "extflat/EFtypes.h" /* EFCapValue, HierName, EFPerimArea, EFNode */
|
||||
|
||||
|
||||
extern float EFScale; /* Scale factor to multiply all coords by */
|
||||
|
|
|
|||
Loading…
Reference in New Issue