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|
# ScummVM - Graphic Adventure Engine
#
# ScummVM is the legal property of its developers, whose names
# are too numerous to list here. Please refer to the COPYRIGHT
# file distributed with this source distribution.
#
# 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.
#
import re
import lex
class Unsupported(Exception):
pass
class var:
def __init__(self, size, offset):
self.size = size
self.offset = offset
class const:
def __init__(self, value):
self.value = value
class reg:
def __init__(self, name):
self.name = name
def size(self):
return 2 if self.name[1] == 'x' else 1
def __str__(self):
return "<register %s>" %self.name
class unref:
def __init__(self, exp):
self.exp = exp
def __str__(self):
return "<unref %s>" %self.exp
class ref:
def __init__(self, name):
self.name = name
def __str__(self):
return "<ref %s>" %self.name
class glob:
def __init__(self, name):
self.name = name
def __str__(self):
return "<global %s>" %self.name
class segment:
def __init__(self, name):
self.name = name
def __str__(self):
return "<segment %s>" %self.name
class baseop(object):
def parse_arg(self, arg):
return arg
def split(self, text):
a, b = lex.parse_args(text)
return self.parse_arg(a), self.parse_arg(b)
def __str__(self):
return str(self.__class__)
class basejmp(baseop):
pass
class _call(baseop):
def __init__(self, arg):
self.name = arg
def visit(self, visitor):
visitor._call(self.name)
def __str__(self):
return "call(%s)" %self.name
class _rep(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._rep()
class _mov(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._mov(self.dst, self.src)
def __str__(self):
return "mov(%s, %s)" %(self.dst, self.src)
class _mov2(baseop):
def __init__(self, dst, src):
self.dst, self.src = dst, src
def visit(self, visitor):
visitor._mov(self.dst, self.src)
class _shr(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._shr(self.dst, self.src)
class _shl(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._shl(self.dst, self.src)
class _ror(baseop):
def __init__(self, arg):
pass
class _rol(baseop):
def __init__(self, arg):
pass
class _sar(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._sar(self.dst, self.src)
class _sal(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._sal(self.dst, self.src)
class _rcl(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._rcl(self.dst, self.src)
class _rcr(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._rcr(self.dst, self.src)
class _neg(baseop):
def __init__(self, arg):
self.arg = arg
def visit(self, visitor):
visitor._neg(self.arg)
class _dec(baseop):
def __init__(self, arg):
self.dst = arg
def visit(self, visitor):
visitor._dec(self.dst)
class _inc(baseop):
def __init__(self, arg):
self.dst = arg
def visit(self, visitor):
visitor._inc(self.dst)
class _add(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._add(self.dst, self.src)
class _sub(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._sub(self.dst, self.src)
class _mul(baseop):
def __init__(self, arg):
self.arg = self.parse_arg(arg)
def visit(self, visitor):
visitor._mul(self.arg)
class _div(baseop):
def __init__(self, arg):
self.arg = self.parse_arg(arg)
def visit(self, visitor):
visitor._div(self.arg)
class _and(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._and(self.dst, self.src)
class _xor(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._xor(self.dst, self.src)
class _or(baseop):
def __init__(self, arg):
self.dst, self.src = self.split(arg)
def visit(self, visitor):
visitor._or(self.dst, self.src)
class _cmp(baseop):
def __init__(self, arg):
self.a, self.b = self.split(arg)
def visit(self, visitor):
visitor._cmp(self.a, self.b)
class _test(baseop):
def __init__(self, arg):
self.a, self.b = self.split(arg)
def visit(self, visitor):
visitor._test(self.a, self.b)
class _xchg(baseop):
def __init__(self, arg):
self.a, self.b = self.split(arg)
def visit(self, visitor):
visitor._xchg(self.a, self.b)
class _jnz(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jnz(self.label)
class _jz(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jz(self.label)
class _jc(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jc(self.label)
class _jnc(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jnc(self.label)
class _js(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._js(self.label)
class _jns(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jns(self.label)
class _jl(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jl(self.label)
class _jg(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jg(self.label)
class _jle(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jle(self.label)
class _jge(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jge(self.label)
class _jmp(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._jmp(self.label)
class _loop(basejmp):
def __init__(self, label):
self.label = label
def visit(self, visitor):
visitor._loop(self.label)
class _push(baseop):
def __init__(self, arg):
self.regs = []
for r in arg.split():
self.regs.append(self.parse_arg(r))
def visit(self, visitor):
visitor._push(self.regs)
class _pop(baseop):
def __init__(self, arg):
self.regs = []
for r in arg.split():
self.regs.append(self.parse_arg(r))
def visit(self, visitor):
visitor._pop(self.regs)
class _ret(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._ret()
class _lodsb(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._lodsb()
class _lodsw(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._lodsw()
class _stosw(baseop):
def __init__(self, arg):
self.repeat = 1
self.clear_cx = False
def visit(self, visitor):
visitor._stosw(self.repeat, self.clear_cx)
class _stosb(baseop):
def __init__(self, arg):
self.repeat = 1
self.clear_cx = False
def visit(self, visitor):
visitor._stosb(self.repeat, self.clear_cx)
class _movsw(baseop):
def __init__(self, arg):
self.repeat = 1
self.clear_cx = False
def visit(self, visitor):
visitor._movsw(self.repeat, self.clear_cx)
class _movsb(baseop):
def __init__(self, arg):
self.repeat = 1
self.clear_cx = False
def visit(self, visitor):
visitor._movsb(self.repeat, self.clear_cx)
class _in(baseop):
def __init__(self, arg):
self.arg = arg
def visit(self, visitor):
raise Unsupported("input from port: %s" %self.arg)
class _out(baseop):
def __init__(self, arg):
self.arg = arg
def visit(self, visitor):
raise Unsupported("out to port: %s" %self.arg)
class _cli(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
raise Unsupported("cli")
class _sti(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
raise Unsupported("sli")
class _int(baseop):
def __init__(self, arg):
self.arg = arg
def visit(self, visitor):
raise Unsupported("interrupt: %s" %self.arg)
class _iret(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
raise Unsupported("interrupt return")
class _cbw(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._cbw()
class _nop(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
pass
class _stc(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._stc()
class _clc(baseop):
def __init__(self, arg):
pass
def visit(self, visitor):
visitor._clc()
class label(baseop):
def __init__(self, name):
self.name = name
def visit(self, visitor):
visitor._label(self.name)
|
