vrq: Parse Tree Nodes

List of all parse tree nodes

ERROR

error node

VCONSTANT

vector constant

Arg<CVector*>(0): Pointer to vector

RCONSTANT

real constant

Arg<char*>(0): Pointer to string

COMMENT

comment

Arg<const char*>(0): Pointer to string

VRQ

vrq comment

Arg<const char*>(0): Pointer to string

PRAGMA

program pragma

Arg<const char*>(0): Pointer to string

ELIST

expression list

Arg<CNode*>(0): expression1
Arg<CNode*>(1): expression2

WIDTH

expression width change

Arg<CNode*>(0): width expression
Arg<CNode*>(1): expression

NOP

no operation

SUB

subtract

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

MUL

multiply

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

DIV

divide

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

POW

exponent

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

ADD

addition

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LSH

logical left shift

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

RSH

logical right shift

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LSHA

arithmetic left shift

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

RSHA

arithmetic right shift

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

MOD

modulus

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

OR

bitwise or

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

AND

bitwise and

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

ANDANDAND

triple and

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

XOR

bitwise xor

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

XNOR

bitwise xnor

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

INSTANCE_REF

instance reference

Arg<CInstance*>(0): Pointer to a instance

GATE_REF

gate instance

Arg<CGate*>(0): Pointer to a gate

TASK_ENABLE

call to a task

Arg<CSymbol*>(0): Pointer to symbol for task to call
Arg<CNode*>(1): Argument expression list

SYSTASK_CALL

call to enable a systask

Arg<CSymbol*>(0): Pointer to symbol for systask to call
Arg<CNode*>(1): Argument expression list

TIMING_CALL

call to a timing task

Arg<CSymbol*>(0): Pointer to symbol of timing task
Arg<CNode*>(1): Argument expression list

FUNCTION_CALL

call to a function

Arg<CSymbol*>(0): Pointer to symbol of the function
Arg<CNode*>(1): Argument expression list
Arg<CScope*>(2): Scope containing expression

ARRAY

dimensioned reference (array/bit select)

Arg<CNode*>(0): Reference to variable
Arg<CNode*>(1): List of index expressions

NET_REF

reference to net

Arg<CNet*>(0): Pointer to net

VAR_REF

reference to variable

Arg<CVar*>(0): Pointer to variable

PARAM_REF

reference to parameter

Arg<CParam*>(0): Pointer to parameter

PORT_REF

reference to port

Arg<CPortDir*>(0): Pointer to port

FWD_REF

reference to a forward declared variable

Arg<CFref*>(0): Pointer to forward declared variable

GENVAR_REF

reference to a genvar

Arg<CGenvar*>(0): Pointer to a genvar

ENUM_REF

reference to a enum

Arg<CEnum*>(0): Pointer to a enum

TYPE_REF

reference to a type

Arg<CTypedef*>(0): Pointer to a typedef

NET_DECL

net declaration

Arg<CNet*>(0): Pointer to a net
Arg<CNode*>(1): continous assignment (optional)

VAR_DECL

variable declaration

Arg<CVar*>(0): Pointer to a variable
Arg<CNode*>(1): procedural assignment (optional)

PARAM_DECL

parameter declaration

Arg<CParam*>(0): Pointer to a parameter

SPECPARAM_DECL

specify parameter declaration

Arg<CParam*>(0): Pointer to a specify parameter

PORT_DECL

port declaration

Arg<CPortDir*>(0): Pointer to a port

GENVAR_DECL

genvar declaration

Arg<CGenvar*>(0): Pointer to a genvar

TYPEDEF_DECL

type declaration

Arg<CTypedef*>(0): Pointer to a typedef

LIST

list of nodes

Arg<CNode*>(0): node 1
Arg<CNode*>(1): node 2

RANGE

vector decl range specification

Arg<CNode*>(0): msb expression, if lsb is null range is msb-1:0
Arg<CNode*>(1): lsb expression, if NULL range is msb-1:0

SLICE

vector subrange

Arg<CNode*>(0): msb expression
Arg<CNode*>(1): lsb expression

PSLICE

vector subrange with ascending index select

Arg<CNode*>(0): index expression
Arg<CNode*>(1): width expression

MSLICE

vector subrange with descending index select

Arg<CNode*>(0): index expression
Arg<CNode*>(1): width expression

CVRI

convert real to integer

Arg<CNode*>(0): expression

CVIR

convert integer to real

Arg<CNode*>(0): expression

REP

replication operator

Arg<CNode*>(0): replication expression
Arg<CNode*>(1): expression to replicate

CAT

concatenation operator

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

UCAT

unary concat

Arg<CNode*>(0): expression

COM

bitwise complement

Arg<CNode*>(0): expression

NEG

negation

Arg<CNode*>(0): expression

PLUS

unary plus

Arg<CNode*>(0): expression

NOT

logical complement

Arg<CNode*>(0): expression

GT

greater than

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

GE

greater than or equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LT

less than

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LE

less than or equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LAND

logical and

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

LOR

logical or

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

CEQ

case equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

CNE

case not equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

EQ

equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

NE

not equal

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

RAND

reduction and

Arg<CNode*>(0): expression

RNAND

reduction nand

Arg<CNode*>(0): expression

ROR

reduction or

Arg<CNode*>(0): expression

RNOR

reduction nor

Arg<CNode*>(0): expression

RXOR

reduction xor

Arg<CNode*>(0): expression

RXNOR

reduction xnor

Arg<CNode*>(0): expression

HOOK

condition expression operator

Arg<CNode*>(0): condition expression
Arg<CNode*>(1): true expression
Arg<CNode*>(2): false expression

INIT

initial block

Arg<CNode*>(0):

ALWAYS

always block

Arg<CNode*>(0):

ALWAYS_LATCH

always latch block

Arg<CNode*>(0):

ALWAYS_FF

always flip-flop block

Arg<CNode*>(0):

ALWAYS_COMB

always combinational logic block

Arg<CNode*>(0):

EVENT

event statement

Arg<CNode*>(0): event expression (NULL for @*)
Arg<CNode*>(1): statement

BLOCK_REF

statement block

Arg<CBlock*>(0): pointer to block
Arg<CNode*>(1): list of statements

SPECIFY_REF

specify block

Arg<CSpecify*>(0): pointer to specify structure
Arg<CNode*>(1): list of statements

ASSIGN

procedural assignment

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

ADD_ASSIGN

procedural assignment with add

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

SUB_ASSIGN

procedural assignment with subtract

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

MUL_ASSIGN

procedural assignment with mul

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

DIV_ASSIGN

procedural assignment with div

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

MOD_ASSIGN

procedural assignment with mod

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

AND_ASSIGN

procedural assignment with bitwise and

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

OR_ASSIGN

procedural assignment with bitwise or

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

XOR_ASSIGN

procedural assignment with bitwise xor

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

LSH_ASSIGN

procedural assignment with left shift

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

RSH_ASSIGN

procedural assignment with right shift

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

LSHA_ASSIGN

procedural assignment with left arithmetic shift

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

RSHA_ASSIGN

procedural assignment with right arithmetic shift

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

FORCE

force statement

Arg<CNode*>(0): lval
Arg<CNode*>(1): expression

RELEASE

release statement

Arg<CNode*>(0): lval

NBASSIGN

nonblocking assignment

Arg<CNode*>(0): event expression
Arg<CNode*>(1): lval
Arg<CNode*>(2): rval

POSEDGE

positive event qualifier

Arg<CNode*>(0): expression

NEGEDGE

negative event qualifier

Arg<CNode*>(0): expression

EDGE

edge qualifier

Arg<CNode*>(0):
Arg<Edge_t>(1): edge specification

EVOR

event or

Arg<CNode*>(0): expression 1
Arg<CNode*>(1): expression 2

DELAY

delay statement

Arg<CNode*>(0): delay expression
Arg<CNode*>(1): statements

MTM

min/typ/max expression

Arg<CNode*>(0): minimum expression
Arg<CNode*>(1): typical expression
Arg<CNode*>(2): maximum expression

IF

if statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): true statements
Arg<CNode*>(2): false statements

FOREVER

forever statement

Arg<CNode*>(0): statements

REPEAT

repeat statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): statements

WHILE

while statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): statements

WAIT

wait statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): statements

FOR

for statement

Arg<CNode*>(0): initial statement
Arg<CNode*>(1): condition
Arg<CNode*>(2): assignment statement
Arg<CNode*>(3): statements

CASE

case statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): list of case items

CASEX

casex statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): list of case items

CASEZ

casez statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): list of case items

CASEITEM

case item

Arg<CNode*>(0): list of expressions (NULL for default)
Arg<CNode*>(1): statement

CASSIGN

continious assignment

Arg<StrengthPair_t*>(0): assignment strength
Arg<CNode*>(1): delay expression
Arg<CNode*>(2): lval
Arg<CNode*>(3): rval expression

ARG

port connection

Arg<CSymbol*>(0): port name
Arg<CNode*>(1): port expression

FUNCTION_DEF

function definition

Arg<CFunction*>(0):

MODULE_DEF

module definition

Arg<CModule*>(0):

REPEAT_CONTROL

repeat control

Arg<CNode*>(0): expression
Arg<CNode*>(1): event control

DELAY_CONTROL

delay control

Arg<CNode*>(0): expression

EVENT_CONTROL

event control

Arg<CNode*>(0): event expression (NULL for @*)

EXTERNAL_REF

external reference

Arg<CSymbol*>(0): pointer to symbol

PORT_DEF

port definition

Arg<CPort*>(0): pointer to port

DEFPARAM

defparam statement

Arg<CNode*>(0): external reference
Arg<CNode*>(1): expression

PATH

path statement

Arg<int>(0):
Arg<CNode*>(1): edge int[-1,0,1]
Arg<int>(2): Input list
Arg<int>(3): Left polarity int[-1,0,1]
Arg<CNode*>(4): Operation type int [0 = *>, 1 = =>]
Arg<int>(5): Output list
Arg<CNode*>(6): Right polarity int[-1,0,1]

PATH_ASSIGN

path assignment statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): path
Arg<CNode*>(2): expression

IFNONE_PATH_ASSIGN

ifnone path assignment statement

Arg<CNode*>(0): path
Arg<CNode*>(1): expression

TRIGGER

event trigger

Arg<CNode*>(0): event reference

PASSIGN

procedural assignment

Arg<CNode*>(0): lval
Arg<CNode*>(1): expression

DEASSIGN

deassign statement

Arg<CNode*>(0): lval

DISABLE

disable statement

Arg<CSymbol*>(0): pointer to symbol

ATTRIBUTE

attribute specification

Arg<CAttr*>(0): pointer to attribute

GIF

structural if statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): true statement
Arg<CNode*>(2): false statement

GFOR

structural for statement

Arg<CNode*>(0): initial statement
Arg<CNode*>(1): condition
Arg<CNode*>(2): assignment statement
Arg<CNode*>(3): statement

GCASE

structural case statement

Arg<CNode*>(0): condition
Arg<CNode*>(1): list of case items

TABLE

udp table

Arg<CNode*>(0): list of table entries

TABLE_ENTRY

udp table entry

Arg<CNode*>(0): list of table symbols

TABLE_SYMBOL

udp table symbol

Arg<char*>(0): string of udp characters

PORTLIST_END

sentinal at end of port list

MACRO_EXPR

expression represented by a macro

Arg<const char*>(0): alternate expression, may be NULL
Arg<CNode*>(1):

ENUM_SPEC

enum specification

Arg<CSymbol*>(0): Pointer to enum base symbol
Arg<CNode*>(1): range expression
Arg<CNode*>(2): starting expression value

MEMBER

member reference (structure, class or external

Arg<CNode*>(0): Reference to variable
Arg<CSymbol*>(1): member symbol

RETURN

return

Arg<CNode*>(0):

PREINC

preincrement

Arg<CNode*>(0): expression

POSTINC

postincrement

Arg<CNode*>(0): expression

PREDEC

predecrement

Arg<CNode*>(0): expression

POSTDEC

postdecrement

Arg<CNode*>(0): expression

CAST

data type change

Arg<CNode*>(0): type reference or width expression
Arg<CNode*>(1): expression