1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
# -*- coding: utf-8 -*-
#
# AWL simulator - Dummy hardware interface
#
# Copyright 2013-2017 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.exceptions import *
#from awlsimhw_dummy.main cimport * #@cy
from awlsim.core.hardware_params import *
from awlsim.core.hardware import * #+cimport
from awlsim.core.operators import * #+cimport
from awlsim.core.offset import * #+cimport
from awlsim.core.cpu import * #+cimport
class HardwareInterface_Dummy(AbstractHardwareInterface): #+cdef
name = "dummy"
description = "Dummy hardware module that does nothing."
def __init__(self, sim, parameters={}):
AbstractHardwareInterface.__init__(self,
sim = sim,
parameters = parameters)
def doStartup(self):
pass # Do nothing
def doShutdown(self):
pass # Do nothing
def readInputs(self): #+cdef
pass # Do nothing
def writeOutputs(self): #+cdef
pass # Do nothing
def directReadInput(self, accessWidth, accessOffset): #@nocy
#@cy cdef bytearray directReadInput(self, uint32_t accessWidth, uint32_t accessOffset):
if accessOffset < self.inputAddressBase:
return bytearray()
# Just read the current value from the CPU and return it.
try:
return self.sim.cpu.fetchInputRange(accessOffset, accessWidth // 8)
except AwlSimError as e:
# We may be out of process image range. Just return 0.
return bytearray( (0,) * (accessWidth // 8) )
def directWriteOutput(self, accessWidth, accessOffset, data): #@nocy
#@cy cdef ExBool_t directWriteOutput(self, uint32_t accessWidth, uint32_t accessOffset, bytearray data) except ExBool_val:
if accessOffset < self.outputAddressBase:
return False
# Just pretend we wrote it somewhere.
return True
# Module entry point
HardwareInterface = HardwareInterface_Dummy
|
