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# -*- coding: utf-8 -*-
#
# AWL simulator - CPU core feature specification
#
# Copyright 2012-2018 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
#from awlsim.common.cython_support cimport * #@cy
from awlsim.common.compat import *
from awlsim.common.util import *
from awlsim.common.enumeration import *
from awlsim.common.exceptions import *
__all__ = [
"S7CPUSpecs",
]
class S7CPUSpecs(object): #+cdef
"""STEP 7 CPU core specifications"""
DEFAULT_NR_ACCUS = 2
DEFAULT_NR_TIMERS = 256
DEFAULT_NR_COUNTERS = 256
DEFAULT_NR_FLAGS = 2048
DEFAULT_NR_INPUTS = 128
DEFAULT_NR_OUTPUTS = 128
DEFAULT_NR_LOCALBYTES = 1024
DEFAULT_PARENSTACK_SIZE = 7
DEFAULT_CALLSTACK_SIZE = 256
__slots__ = (
"cpu",
"nrAccus",
"nrTimers",
"nrCounters",
"nrFlags",
"nrInputs",
"nrOutputs",
"nrLocalbytes",
"parenStackSize",
"callStackSize",
)
def __init__(self, cpu=None):
self.cpu = None
self.setNrAccus(self.DEFAULT_NR_ACCUS)
self.setNrTimers(self.DEFAULT_NR_TIMERS)
self.setNrCounters(self.DEFAULT_NR_COUNTERS)
self.setNrFlags(self.DEFAULT_NR_FLAGS)
self.setNrInputs(self.DEFAULT_NR_INPUTS)
self.setNrOutputs(self.DEFAULT_NR_OUTPUTS)
self.setNrLocalbytes(self.DEFAULT_NR_LOCALBYTES)
self.setParenStackSize(self.DEFAULT_PARENSTACK_SIZE)
self.setCallStackSize(self.DEFAULT_CALLSTACK_SIZE)
self.cpu = cpu
def assignFrom(self, otherCpuSpecs):
self.setNrAccus(otherCpuSpecs.nrAccus)
self.setNrTimers(otherCpuSpecs.nrTimers)
self.setNrCounters(otherCpuSpecs.nrCounters)
self.setNrFlags(otherCpuSpecs.nrFlags)
self.setNrInputs(otherCpuSpecs.nrInputs)
self.setNrOutputs(otherCpuSpecs.nrOutputs)
self.setNrLocalbytes(otherCpuSpecs.nrLocalbytes)
self.setParenStackSize(otherCpuSpecs.parenStackSize)
self.setCallStackSize(otherCpuSpecs.callStackSize)
def __copy__(self):
new = self.__class__()
new.assignFrom(self)
new.cpu = self.cpu
return new
def __deepcopy__(self, memo):
raise NotImplementedError
def setNrAccus(self, count):
if count not in (2, 4):
raise AwlSimError("Invalid number of accus") #@nocov
self.nrAccus = count
if self.cpu:
self.cpu.reallocate()
def setNrTimers(self, count):
self.nrTimers = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setNrCounters(self, count):
self.nrCounters = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setNrFlags(self, count):
self.nrFlags = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setNrInputs(self, count):
self.nrInputs = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setNrOutputs(self, count):
self.nrOutputs = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setNrLocalbytes(self, count):
self.nrLocalbytes = clamp(count, 0, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
def setParenStackSize(self, count):
self.parenStackSize = clamp(count, 0, 0x7FFF)
if self.cpu:
self.cpu.reallocate()
def setCallStackSize(self, count):
self.callStackSize = clamp(count, 1, 0x7FFFFFFF)
if self.cpu:
self.cpu.reallocate()
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