def _modulehead(self, terms): modulehead = '' modulehead += '`default_nettype none\n' modulehead += 'module ' + self.modulename + '(' modulehead += '\n' + (' ' * self.num_indent) modulehead += self.clock_name + ', ' modulehead += self.reset_name + ', ' modulehead += self.enable_name + ', ' modulehead += '\n' + (' ' * self.num_indent) for tk, tv in terms.items(): scope = util.getScope(tk) if util.isTopmodule(scope): termtype = self.getTermtype(tk) if signaltype.isInput(termtype) and tk == util.toTermname( (self.topmodule, self.reset_name)): continue if signaltype.isInput(termtype) and tk == util.toTermname( (self.topmodule, self.clock_name)): continue if signaltype.isInput(termtype): modulehead += util.toFlatname(tk) + ', ' elif signaltype.isInout(termtype): modulehead += util.toFlatname(tk) + ', ' elif signaltype.isOutput(termtype): modulehead += util.toFlatname(tk) + ', ' modulehead = modulehead[:-2] + ');\n\n' return modulehead
def _modulehead(self, terms): modulehead = '' modulehead += '`default_nettype none\n' modulehead += 'module ' + self.modulename + '(' modulehead += '\n' + (' ' * self.num_indent) modulehead += self.clock_name + ', ' modulehead += self.reset_name + ', ' modulehead += self.enable_name + ', ' modulehead += '\n' + (' ' * self.num_indent) for tk, tv in terms.items(): scope = util.getScope(tk) if util.isTopmodule(scope): termtype = self.getTermtype(tk) if signaltype.isInput(termtype) and tk == util.toTermname((self.topmodule, self.reset_name)): continue if signaltype.isInput(termtype) and tk == util.toTermname((self.topmodule, self.clock_name)): continue if signaltype.isInput(termtype): modulehead += util.toFlatname(tk) + ', ' elif signaltype.isInout(termtype): modulehead += util.toFlatname(tk) + ', ' elif signaltype.isOutput(termtype): modulehead += util.toFlatname(tk) + ', ' modulehead = modulehead[:-2] + ');\n\n' return modulehead
def walkTree(self, tree, visited=set([]), step=0, delay=False, msb=None, lsb=None, ptr=None): if tree is None: return DFUndefined(32) if isinstance(tree, DFUndefined): return tree if isinstance(tree, DFHighImpedance): return tree if isinstance(tree, DFConstant): return tree if isinstance(tree, DFEvalValue): return tree if isinstance(tree, DFTerminal): scope = util.getScope(tree.name) termname = tree.name if termname in visited: return tree termtype = self.getTermtype(termname) if util.isTopmodule(scope) and signaltype.isInput(termtype): return tree nptr = None if signaltype.isRegArray(termtype) or signaltype.isWireArray( termtype): if ptr is None: raise verror.FormatError( 'Array variable requires an pointer.') if msb is not None and lsb is not None: return tree nptr = ptr nextstep = step if signaltype.isReg(termtype) or signaltype.isRegArray(termtype): if (not self.isCombination(termname) and not signaltype.isRename(termtype) and nextstep == 0): return tree if (not self.isCombination(termname) and not signaltype.isRename(termtype)): nextstep -= 1 return self.walkTree(self.getTree(termname, nptr), visited | set([ termname, ]), nextstep, delay) if isinstance(tree, DFBranch): condnode = self.walkTree(tree.condnode, visited, step, delay) truenode = self.walkTree(tree.truenode, visited, step, delay) falsenode = self.walkTree(tree.falsenode, visited, step, delay) return DFBranch(condnode, truenode, falsenode) if isinstance(tree, DFOperator): nextnodes = [] for n in tree.nextnodes: nextnodes.append(self.walkTree(n, visited, step, delay)) return DFOperator(tuple(nextnodes), tree.operator) if isinstance(tree, DFPartselect): msb = self.walkTree(tree.msb, visited, step, delay) lsb = self.walkTree(tree.lsb, visited, step, delay) var = self.walkTree(tree.var, visited, step, delay, msb=msb, lsb=lsb) return DFPartselect(var, msb, lsb) if isinstance(tree, DFPointer): ptr = self.walkTree(tree.ptr, visited, step, delay) var = self.walkTree(tree.var, visited, step, delay, ptr=ptr) if isinstance(tree.var, DFTerminal): termtype = self.getTermtype(tree.var.name) if ((signaltype.isRegArray(termtype) or signaltype.isWireArray(termtype)) and not (isinstance(var, DFTerminal) and var.name == tree.var.name)): return var return DFPointer(var, ptr) if isinstance(tree, DFConcat): nextnodes = [] for n in tree.nextnodes: nextnodes.append(self.walkTree(n, visited, step, delay)) return DFConcat(tuple(nextnodes)) raise verror.DefinitionError('Undefined Node Type: %s : %s' % (str(type(tree)), str(tree)))
def walkTree(self, tree, visited=set([]), step=0, delay=False, msb=None, lsb=None, ptr=None): if tree is None: return DFUndefined(32) if isinstance(tree, DFUndefined): return tree if isinstance(tree, DFHighImpedance): return tree if isinstance(tree, DFConstant): return tree if isinstance(tree, DFEvalValue): return tree if isinstance(tree, DFTerminal): scope = util.getScope(tree.name) termname = tree.name if termname in visited: return tree termtype = self.getTermtype(termname) if util.isTopmodule(scope) and signaltype.isInput(termtype): return tree nptr = None if signaltype.isRegArray(termtype) or signaltype.isWireArray(termtype): if ptr is None: raise verror.FormatError("Array variable requires an pointer.") if msb is not None and lsb is not None: return tree nptr = ptr nextstep = step if signaltype.isReg(termtype) or signaltype.isRegArray(termtype): if not self.isCombination(termname) and not signaltype.isRename(termtype) and nextstep == 0: return tree if not self.isCombination(termname) and not signaltype.isRename(termtype): nextstep -= 1 return self.walkTree(self.getTree(termname, nptr), visited | set([termname]), nextstep, delay) if isinstance(tree, DFBranch): condnode = self.walkTree(tree.condnode, visited, step, delay) truenode = self.walkTree(tree.truenode, visited, step, delay) falsenode = self.walkTree(tree.falsenode, visited, step, delay) return DFBranch(condnode, truenode, falsenode) if isinstance(tree, DFOperator): nextnodes = [] for n in tree.nextnodes: nextnodes.append(self.walkTree(n, visited, step, delay)) return DFOperator(tuple(nextnodes), tree.operator) if isinstance(tree, DFPartselect): msb = self.walkTree(tree.msb, visited, step, delay) lsb = self.walkTree(tree.lsb, visited, step, delay) var = self.walkTree(tree.var, visited, step, delay, msb=msb, lsb=lsb) if isinstance(var, DFPartselect): child_lsb = self.getTerm(str(tree.var)).lsb.eval() return DFPartselect( var.var, DFIntConst(str(msb.eval() + var.lsb.eval() - child_lsb)), DFIntConst(str(lsb.eval() + var.lsb.eval() - child_lsb)), ) return DFPartselect(var, msb, lsb) if isinstance(tree, DFPointer): ptr = self.walkTree(tree.ptr, visited, step, delay) var = self.walkTree(tree.var, visited, step, delay, ptr=ptr) if isinstance(tree.var, DFTerminal): termtype = self.getTermtype(tree.var.name) if (signaltype.isRegArray(termtype) or signaltype.isWireArray(termtype)) and not ( isinstance(var, DFTerminal) and var.name == tree.var.name ): return var return DFPointer(var, ptr) if isinstance(tree, DFConcat): nextnodes = [] for n in tree.nextnodes: nextnodes.append(self.walkTree(n, visited, step, delay)) return DFConcat(tuple(nextnodes)) raise verror.DefinitionError("Undefined Node Type: %s : %s" % (str(type(tree)), str(tree)))