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# -*- coding: utf-8 -*-
#
# AWL simulator - instructions
#
# Copyright 2012-2019 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.exceptions import *
from awlsim.core.instructions.main import * #+cimport
from awlsim.core.operatortypes import * #+cimport
from awlsim.core.operators import * #+cimport
class AwlInsn_AbstractCall(AwlInsn): #+cdef
__slots__ = ()
def staticSanityChecks(self):
#@cy cdef AwlParamAssign param
if self.opCount == 1:
# "CALL FC/SFC" or
# "CALL #MULTIINSTANCE" or
# "UC/CC FC/SFC/FB/SFB"
blockOper = self.op0
if blockOper.operType == AwlOperatorTypes.BLKREF_FC:
codeBlock = self.cpu.getFC(blockOper.offset.byteOffset)
if not codeBlock:
raise AwlSimError("Called FC not found",
rawInsn=self.getRawInsn())
elif blockOper.operType == AwlOperatorTypes.BLKREF_SFC:
codeBlock = self.cpu.getSFC(blockOper.offset.byteOffset)
if not codeBlock:
raise AwlSimError("SFC %d not implemented, yet" %\
blockOper.offset.byteOffset,
rawInsn=self.getRawInsn())
elif blockOper.operType == AwlOperatorTypes.BLKREF_FB:
if self.insnType == AwlInsn.TYPE_CALL:
raise AwlSimError("Missing DB in function "
"block call",
rawInsn=self.getRawInsn())
codeBlock = self.cpu.getFB(blockOper.offset.byteOffset)
if not codeBlock:
raise AwlSimError("Called FB not found",
rawInsn=self.getRawInsn())
elif blockOper.operType == AwlOperatorTypes.BLKREF_SFB:
if self.insnType == AwlInsn.TYPE_CALL:
raise AwlSimError("Missing DB in system function "
"block call",
rawInsn=self.getRawInsn())
codeBlock = self.cpu.getSFB(blockOper.offset.byteOffset)
if not codeBlock:
raise AwlSimError("SFB %d not implemented, yet" %\
blockOper.offset.byteOffset,
rawInsn=self.getRawInsn())
elif blockOper.operType == AwlOperatorTypes.INDIRECT:
# Indirect call. (like UC FC[MW 0])
codeBlock = None
elif blockOper.operType in (AwlOperatorTypes.MULTI_FB, AwlOperatorTypes.MULTI_SFB):
# Multi instance call (like CALL #FOO)
if blockOper.operType == AwlOperatorTypes.MULTI_FB:
codeBlock = self.cpu.getFB(blockOper.offset.fbNumber)
if not codeBlock:
pass#TODO
else:
codeBlock = self.cpu.getSFB(blockOper.offset.fbNumber)
if not codeBlock:
pass#TODO
else:
raise AwlSimError("Invalid CALL operand",
rawInsn=self.getRawInsn())
if self.insnType == AwlInsn.TYPE_CALL and\
codeBlock and\
codeBlock.isFC and\
codeBlock.interface.interfaceFieldCount != len(self.params):
raise AwlSimError("Call interface mismatch. "
"Passed %d parameters, but expected %d.\n"
"==== The block interface is:\n%s\n====" %\
(len(self.params), codeBlock.interface.interfaceFieldCount,
str(codeBlock.interface)),
rawInsn=self.getRawInsn())
elif self.opCount == 2:
# "CALL FB/SFB"
blockOper = self.op0
dbOper = self.op1
if dbOper.operType != AwlOperatorTypes.BLKREF_DB:
raise AwlSimError("Second CALL operand is "
"not a DB operand.",
rawInsn=self.getRawInsn())
db = self.cpu.getDB(dbOper.offset.byteOffset)
if not db:
raise AwlSimError("DB used in FB call not found",
rawInsn=self.getRawInsn())
if not db.isInstanceDB():
raise AwlSimError("DB %d is not an instance DB" %\
dbOper.offset.byteOffset,
rawInsn=self.getRawInsn())
if blockOper.operType == AwlOperatorTypes.BLKREF_FB:
fb = self.cpu.getFB(blockOper.offset.byteOffset)
if not fb:
raise AwlSimError("Called FB not found",
rawInsn=self.getRawInsn())
# TODO check if this is an FB-DB
pass#TODO
elif blockOper.operType == AwlOperatorTypes.BLKREF_SFB:
fb = self.cpu.getSFB(blockOper.offset.byteOffset)
if not fb:
raise AwlSimError("SFB %d not implemented, yet" %\
blockOper.offset.byteOffset,
rawInsn=self.getRawInsn())
# TODO check if this is an SFB-DB
pass#TODO
elif blockOper.operType == AwlOperatorTypes.BLKREF_FC or\
blockOper.operType == AwlOperatorTypes.BLKREF_SFC:
raise AwlSimError("Calling function, but "
"a DB was specified.",
rawInsn=self.getRawInsn())
else:
raise AwlSimError("Invalid CALL operand",
rawInsn=self.getRawInsn())
if db.codeBlock.index != fb.index:
raise AwlSimError("DB %d is not an instance DB for FB %d" %\
(dbOper.offset.byteOffset,
blockOper.offset.byteOffset),
rawInsn=self.getRawInsn())
else:
assert(0)
# Check parameter assignments
for param in self.params:
if param.isOutbound:
if ((blockOper.operType == AwlOperatorTypes.BLKREF_FB or\
blockOper.operType == AwlOperatorTypes.BLKREF_SFB) and\
param.rvalueOp.isImmediate()) or\
((blockOper.operType == AwlOperatorTypes.BLKREF_FC or\
blockOper.operType == AwlOperatorTypes.BLKREF_SFC) and\
param.rvalueOp.isImmediate() and\
param.rvalueOp.operType != AwlOperatorTypes.IMM_PTR):
raise AwlSimError("Immediate value assignment '%s' "
"to OUTPUT or IN_OUT parameter '%s' is "
"not allowed." %\
(str(param.rvalueOp),
param.lvalueName),
rawInsn=self.getRawInsn())
class AwlInsn_CALL(AwlInsn_AbstractCall): #+cdef
__slots__ = ()
def __init__(self, cpu, rawInsn=None, **kwargs):
AwlInsn_AbstractCall.__init__(self, cpu, AwlInsn.TYPE_CALL, rawInsn, **kwargs)
self.assertOpCount((1, 2))
def run(self): #+cdef
#@cy cdef S7StatusWord s
if self.opCount == 1:
self.cpu.run_CALL(self.op0, None, self.params, False)
else:
self.cpu.run_CALL(self.op0, self.op1, self.params, False)
s = self.cpu.statusWord
s.OS, s.OR, s.STA, s.NER = 0, 0, 1, 0
class AwlInsn_CC(AwlInsn_AbstractCall): #+cdef
__slots__ = ()
def __init__(self, cpu, rawInsn=None, **kwargs):
AwlInsn_AbstractCall.__init__(self, cpu, AwlInsn.TYPE_CC, rawInsn, **kwargs)
self.assertOpCount(1)
def staticSanityChecks(self):
self._warnDeprecated("Please use CALL instead.")
def run(self): #+cdef
#@cy cdef S7StatusWord s
s = self.cpu.statusWord
if s.VKE:
self.cpu.run_CALL(self.op0, None, (), True)
s.OS, s.OR, s.STA, s.VKE, s.NER = 0, 0, 1, 1, 0
class AwlInsn_UC(AwlInsn_AbstractCall): #+cdef
__slots__ = ()
def __init__(self, cpu, rawInsn=None, **kwargs):
AwlInsn_AbstractCall.__init__(self, cpu, AwlInsn.TYPE_UC, rawInsn, **kwargs)
self.assertOpCount(1)
def staticSanityChecks(self):
self._warnDeprecated("Please use CALL instead.")
def run(self): #+cdef
#@cy cdef S7StatusWord s
self.cpu.run_CALL(self.op0, None, (), True)
s = self.cpu.statusWord
s.OS, s.OR, s.STA, s.NER = 0, 0, 1, 0
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