def visit_SystemTask(self, node):
cmd = node.cmd
if (self.for_verilator and (cmd == 'dumpfile' or cmd == 'dumpvars')):
return vast.SystemCall('write', (vast.StringConst(''),))
if (self.for_verilator and self.in_initial and cmd == 'finish'):
return vast.SystemCall('write', (vast.StringConst(''),))
args = tuple([self.visit(a) for a in node.args])
return vast.SystemCall(cmd, args)
def visit_Forever(self, node):
if self.for_verilator:
return vast.SingleStatement(
vast.SystemCall('write', (vast.StringConst(''), )))
statement = self._optimize_block(
vast.Block(tuple([self.visit(s) for s in node.statement])))
return vast.ForeverStatement(statement)
def visit_SystemTask(self, node):
cmd = node.cmd
args = tuple([self.visit(a) for a in node.args])
return vast.SystemCall(cmd, args)
def visit_Delay(self, node):
if self.for_verilator:
return vast.SingleStatement(vast.SystemCall('write', (vast.StringConst(''),)))
delay = self.visit(node.value)
return vast.SingleStatement(vast.DelayStatement(delay))