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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
contants for Apoo
Copyright (C) 1998-2003 Rogério Reis & Nelma Moreira {rvr,nam}@ncc.up.pt
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., 675 Mass Ave, Cambridge, MA 02139, USA.
@author: Rogério Reis & Nelma Moreira {rvr,nam}@ncc.up.pt
"""
import exceptions
__version = "$Id: constants.py,v 1.27 2006-04-15 22:10:24 rvr Exp $"
False = 0
True = 1
class vpuError(Exception):
pass
class EndOfProgram(vpuError):
def __init__(self):
self.message = 'End Of Program'
self.colour = 'green'
class OutOfMemory(vpuError):
def __init__(self,add):
self.message = 'Out of Memory'
self.add = add
self.colour = 'red'
class OutOfProgram(vpuError):
def __init__(self):
self.message = 'Out of Program'
self.colour = 'red'
class LabelError(vpuError):
def __init__(self,line = 0):
self.message = 'Label Error'
self.line = line
self.colour = 'red'
class LabelNameError(vpuError):
def __init__(self,line = 0):
self.message = 'Label Name Error'
self.line = line
self.colour = 'red'
class TooManySteps(vpuError):
def __init__(self, num):
self.message = 'Probably an infinite loop'
self.num = num
self.colour = 'red'
class vpuLoadError(vpuError):
def __init__(self, line):
self.line = line
class BadArgs(vpuLoadError):
def __init__(self,line):
self.message = 'Wrong number of arguments'
vpuLoadError.__init__(self,line)
class WrongArg(vpuLoadError):
def __init__(self,line):
self.message = 'Wrong argument'
vpuLoadError.__init__(self,line)
class NotInt(vpuLoadError):
def __init__(self,line):
self.message = 'Integer expected'
vpuLoadError.__init__(self,line)
class IllInst(vpuLoadError):
def __init__(self,line):
self.message = 'Illegal Instruction'
vpuLoadError.__init__(self,line)
class IllOperand(vpuLoadError):
def __init__(self,line):
self.message = 'Illegal Operand'
vpuLoadError.__init__(self,line)
class IllReg(vpuLoadError):
def __init__(self,line):
self.message = 'Illegal Register'
vpuLoadError.__init__(self,line)
class FileError(vpuError):
def __init__(self,line=0):
self.message = 'File Error'
# zero arg, nonreg, reg, reg reg, nonreg reg, reg nonreg, specials
inst = (['rtn','halt','nop'], # zero arg
['jsr','jump'], # nonreg
['inc','dec','zero','not','jumpi','push','pop'], #reg
['storei','loadi','storer','add','sub','mul','div','mod',
'and','or','xor'], # reg reg
['load','loadn'], # nonreg reg
['store','jzero','jnzero','jpos','jneg'], # reg nonreg
['mem','const','string','equ']) #specials
|
