mirror of
https://github.com/RevCurtisP/C02.git
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f713118fe6
Script bin/py65m contains stub class FileSystem to allow file system access functionality
911 lines
30 KiB
Python
911 lines
30 KiB
Python
#!/usr/bin/env python -u
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"""py65mon -- interact with a simulated 6502-based system
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Usage: %s [options]
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Options:
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-h, --help : Show this message
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-m, --mpu <device> : Choose which MPU device (default is 6502)
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-l, --load <file> : Load a file at address 0
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-r, --rom <file> : Load a rom at the top of address space and reset into it
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-g, --goto <address> : Perform a goto command after loading any files
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-i, --input <address> : define location of getc (default $f004)
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-o, --output <address> : define location of putc (default $f001)
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"""
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import cmd
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import getopt
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import os
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import re
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import shlex
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import sys
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from asyncore import compact_traceback
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from py65.devices.mpu6502 import MPU as NMOS6502
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from py65.devices.mpu65c02 import MPU as CMOS65C02
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from py65.devices.mpu65org16 import MPU as V65Org16
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from py65.disassembler import Disassembler
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from py65.assembler import Assembler
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from py65.utils.addressing import AddressParser
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from py65.utils import console
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from py65.utils.conversions import itoa
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from py65.memory import ObservableMemory
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try:
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from urllib2 import urlopen
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except ImportError: # Python 3
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from urllib.request import urlopen
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class FileSystem():
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def __init__(self):
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self.registers = 8
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self.register = {}
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def write_mem(self, address, value):
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self.register[address] = value;
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def read_mem(self, address):
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return self.register[address]
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class Monitor(cmd.Cmd):
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Microprocessors = {'6502': NMOS6502, '65C02': CMOS65C02,
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'65Org16': V65Org16}
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def __init__(self, mpu_type=NMOS6502, completekey='tab', stdin=None,
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stdout=None, argv=None):
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self.mpu_type = mpu_type
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self.putc_addr = 0xF001
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self.getc_addr = 0xF004
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self.fsio_addr = 0xF100
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if argv is None:
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argv = sys.argv
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self._breakpoints = []
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self._width = 78
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self.prompt = "."
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self._add_shortcuts()
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cmd.Cmd.__init__(self, completekey, stdin, stdout)
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self._parse_args(argv)
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self._reset(self.mpu_type,self.getc_addr,self.putc_addr,self.fsio_addr)
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def _parse_args(self, argv):
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try:
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shortopts = 'hf:i:o:m:l:r:g:'
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longopts = ['help', 'mpu=', 'fileio=', 'input=', 'output=', 'load=', 'rom=', 'goto=']
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options, args = getopt.getopt(argv[1:], shortopts, longopts)
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except getopt.GetoptError as exc:
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self._output(exc.args[0])
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self._usage()
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self._exit(1)
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load = None
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rom = None
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goto = None
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mpu = None
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for opt, value in options:
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if opt in ('-i', '--input'):
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self.getc_addr = int(value, 16)
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if opt in ('-o', '--output'):
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self.putc_addr = int(value, 16)
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if opt in ('-f', '--fileio'):
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self.fsio_addr = int(value, 16)
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if opt in ('-l', '--load'):
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load = value
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if opt in ('-r', '--rom'):
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rom = value
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if opt in ('-g', '--goto'):
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goto = value
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if opt in ('-m', '--mpu'):
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mpu = value
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elif opt in ("-h", "--help"):
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self._usage()
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self._exit(0)
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if (mpu is not None) or (rom is not None):
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if mpu is None:
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mpu = "6502"
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if self._get_mpu(mpu) is None:
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mpus = list(self.Microprocessors.keys())
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mpus.sort()
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msg = "Fatal: no such MPU. Available MPUs: %s"
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self._output(msg % ', '.join(mpus))
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sys.exit(1)
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cmd = "mpu %s" % mpu
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self.onecmd(cmd)
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if load is not None:
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cmd = "load %s" % load
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self.onecmd(cmd)
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if goto is not None:
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cmd = "goto %s" % goto
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self.onecmd(cmd)
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if rom is not None:
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# load a ROM and run from the reset vector
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cmd = "load '%s' top" % rom
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self.onecmd(cmd)
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physMask = self._mpu.memory.physMask
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reset = self._mpu.RESET & physMask
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dest = self._mpu.memory[reset] + \
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(self._mpu.memory[reset + 1] << self.byteWidth)
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cmd = "goto %08x" % dest
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self.onecmd(cmd)
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def _usage(self):
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usage = __doc__ % sys.argv[0]
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self._output(usage)
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def onecmd(self, line):
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line = self._preprocess_line(line)
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result = None
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try:
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result = cmd.Cmd.onecmd(self, line)
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except KeyboardInterrupt:
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self._output("Interrupt")
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except Exception:
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(file, fun, line), t, v, tbinfo = compact_traceback()
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error = 'Error: %s, %s: file: %s line: %s' % (t, v, file, line)
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self._output(error)
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if not line.startswith("quit"):
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self._output_mpu_status()
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return result
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def _reset(self, mpu_type,getc_addr=0xF004,putc_addr=0xF001,fsio_addr=0xF100):
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self._mpu = mpu_type()
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self.addrWidth = self._mpu.ADDR_WIDTH
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self.byteWidth = self._mpu.BYTE_WIDTH
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self.addrFmt = self._mpu.ADDR_FORMAT
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self.byteFmt = self._mpu.BYTE_FORMAT
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self.addrMask = self._mpu.addrMask
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self.byteMask = self._mpu.byteMask
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self._install_mpu_observers(getc_addr,putc_addr,fsio_addr)
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self._address_parser = AddressParser()
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self._disassembler = Disassembler(self._mpu, self._address_parser)
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self._assembler = Assembler(self._mpu, self._address_parser)
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def _add_shortcuts(self):
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self._shortcuts = {'EOF': 'quit',
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'~': 'tilde',
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'a': 'assemble',
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'ab': 'add_breakpoint',
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'al': 'add_label',
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'd': 'disassemble',
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'db': 'delete_breakpoint',
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'dl': 'delete_label',
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'exit': 'quit',
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'f': 'fill',
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'>': 'fill',
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'g': 'goto',
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'h': 'help',
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'?': 'help',
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'l': 'load',
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'm': 'mem',
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'q': 'quit',
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'r': 'registers',
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'ret': 'return',
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'rad': 'radix',
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's': 'save',
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'shb': 'show_breakpoints',
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'shl': 'show_labels',
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'x': 'quit',
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'z': 'step'}
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def _preprocess_line(self, line):
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# line comments
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quoted = False
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for pos, char in enumerate(line):
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if char in ('"', "'"):
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quoted = not quoted
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if (not quoted) and (char == ';'):
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line = line[:pos]
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break
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# whitespace & leading dots
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line = line.strip(' \t').lstrip('.')
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# special case for vice compatibility
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if line.startswith('~'):
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line = self._shortcuts['~'] + ' ' + line[1:]
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# command shortcuts
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for shortcut, command in self._shortcuts.items():
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if line == shortcut:
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line = command
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break
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pattern = '^%s\s+' % re.escape(shortcut)
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matches = re.match(pattern, line)
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if matches:
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start, end = matches.span()
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line = "%s %s" % (command, line[end:])
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break
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return line
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def _get_mpu(self, name):
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requested = name.lower()
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mpu = None
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for key, klass in self.Microprocessors.items():
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if key.lower() == requested:
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mpu = klass
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break
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return mpu
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def _install_mpu_observers(self,getc_addr,putc_addr,fsio_addr):
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def putc(address, value):
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try:
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self.stdout.write(chr(value))
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except UnicodeEncodeError: # Python 3
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self.stdout.write("?")
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self.stdout.flush()
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def getc(address):
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char = console.getch_noblock(self.stdin)
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if char:
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byte = ord(char)
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else:
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byte = 0
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return byte
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m = ObservableMemory(addrWidth=self.addrWidth)
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m.subscribe_to_write([self.putc_addr], putc)
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m.subscribe_to_read([self.getc_addr], getc)
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fs = FileSystem()
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fsio_range = range(fsio_addr, fsio_addr+fs.registers)
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m.subscribe_to_write(fsio_range, fs.write_mem)
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m.subscribe_to_read(fsio_range, fs.read_mem)
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self._mpu.memory = m
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def _output_mpu_status(self):
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self._output("\n" + repr(self._mpu))
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def _output(self, stuff):
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self.stdout.write("%s\n" % stuff)
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def _exit(self, exitcode=0):
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sys.exit(exitcode)
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def do_help(self, args):
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args = self._shortcuts.get(args.strip(), args)
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return cmd.Cmd.do_help(self, args)
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def help_version(self):
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self._output("version\t\tDisplay Py65 version information.")
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def do_version(self, args):
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self._output("\nPy65 Monitor")
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def help_help(self):
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self._output("help\t\tPrint a list of available actions.")
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self._output("help <action>\tPrint help for <action>.")
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def help_reset(self):
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self._output("reset\t\tReset the microprocessor")
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def do_reset(self, args):
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klass = self._mpu.__class__
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self._reset(mpu_type=klass)
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def do_mpu(self, args):
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def available_mpus():
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mpus = list(self.Microprocessors.keys())
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mpus.sort()
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self._output("Available MPUs: %s" % ', '.join(mpus))
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if args == '':
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self._output("Current MPU is %s" % self._mpu.name)
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available_mpus()
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else:
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new_mpu = self._get_mpu(args)
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if new_mpu is None:
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self._output("Unknown MPU: %s" % args)
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available_mpus()
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else:
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self._reset(new_mpu,self.getc_addr,self.putc_addr,self.fsio_addr)
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self._output("Reset with new MPU %s" % self._mpu.name)
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def help_mpu(self):
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self._output("mpu\t\tPrint available microprocessors.")
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self._output("mpu <type>\tSelect a new microprocessor.")
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def do_quit(self, args):
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self._output('')
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return 1
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def help_quit(self):
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self._output("To quit, type ^D or use the quit command.")
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def do_assemble(self, args):
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splitted = args.split(None, 1)
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if len(splitted) != 2:
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return self._interactive_assemble(args)
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statement = splitted[1]
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try:
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start = self._address_parser.number(splitted[0])
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bytes = self._assembler.assemble(statement, start)
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end = start + len(bytes)
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self._mpu.memory[start:end] = bytes
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self.do_disassemble(self.addrFmt % start)
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except KeyError as exc:
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self._output(exc.args[0]) # "Label not found: foo"
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except OverflowError:
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self._output("Overflow error: %s" % args)
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except SyntaxError:
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self._output("Syntax error: %s" % statement)
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def help_assemble(self):
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self._output("assemble\t\t\t"
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"Start interactive assembly at the program counter.")
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self._output("assemble <address>\t\t"
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"Start interactive assembly at the address.")
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self._output("assemble <address> <statement>\t"
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"Assemble a statement at the address.")
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def _interactive_assemble(self, args):
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if args == '':
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start = self._mpu.pc
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else:
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try:
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start = self._address_parser.number(args)
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except KeyError as exc:
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self._output(exc.args[0]) # "Label not found: foo"
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return
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while True:
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prompt = "\r$" + (self.addrFmt % start) + " " + \
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(" " * int(1 + self.byteWidth / 4) * 3)
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line = console.line_input(prompt,
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stdin=self.stdin, stdout=self.stdout)
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if not line.strip():
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self.stdout.write("\n")
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return
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# assemble into memory
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try:
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bytes = self._assembler.assemble(line, pc=start)
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numbytes = len(bytes)
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end = start + numbytes
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self._mpu.memory[start:end] = bytes
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# print disassembly
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_, disasm = self._disassembler.instruction_at(start)
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fdisasm = self._format_disassembly(start, numbytes, disasm)
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indent = ' ' * (len(prompt + line) + 5)
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self.stdout.write("\r" + indent + "\r")
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self.stdout.write(fdisasm + "\n")
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# advance to next address
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start += numbytes
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if start >= (2 ** self._mpu.ADDR_WIDTH):
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start = 0
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except KeyError:
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addr = self.addrFmt % start
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self.stdout.write("\r$%s ?Label\n" % addr)
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except OverflowError:
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addr = self.addrFmt % start
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self.stdout.write("\r$%s ?Overflow\n" % addr)
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except SyntaxError:
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addr = self.addrFmt % start
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self.stdout.write("\r$%s ?Syntax\n" % addr)
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def do_disassemble(self, args):
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splitted = shlex.split(args)
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if len(splitted) != 1:
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return self.help_disassemble()
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address_parts = splitted[0].split(":")
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start = self._address_parser.number(address_parts[0])
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if len(address_parts) > 1:
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end = self._address_parser.number(address_parts[1])
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else:
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end = start
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max_address = (2 ** self._mpu.ADDR_WIDTH) - 1
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cur_address = start
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needs_wrap = start > end
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while needs_wrap or cur_address <= end:
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length, disasm = self._disassembler.instruction_at(cur_address)
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self._output(self._format_disassembly(cur_address, length, disasm))
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remaining = length
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while remaining:
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remaining -= 1
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cur_address += 1
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if start > end and cur_address > max_address:
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needs_wrap = False
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cur_address = 0
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def _format_disassembly(self, address, length, disasm):
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cur_address = address
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max_address = (2 ** self._mpu.ADDR_WIDTH) - 1
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bytes_remaining = length
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dump = ''
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while bytes_remaining:
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if cur_address > max_address:
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cur_address = 0
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dump += self.byteFmt % self._mpu.memory[cur_address] + " "
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cur_address += 1
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bytes_remaining -= 1
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fieldwidth = 1 + int(1 + self.byteWidth / 4) * 3
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fieldfmt = "%%-%ds" % fieldwidth
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return "$" + self.addrFmt % address + " " + fieldfmt % dump + disasm
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def help_disassemble(self):
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self._output("disassemble <address_range>")
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self._output("Disassemble instructions in the address range.")
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self._output('Range is specified like "<start>:<end>".')
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def help_step(self):
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self._output("step")
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self._output("Single-step through instructions.")
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def do_step(self, args):
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self._mpu.step()
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self.do_disassemble(self.addrFmt % self._mpu.pc)
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def help_return(self):
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self._output("return")
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self._output("Continues execution and returns to the monitor just")
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self._output("before the next RTS or RTI is executed.")
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def do_return(self, args):
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returns = [0x60, 0x40] # RTS, RTI
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self._run(stopcodes=returns)
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def help_goto(self):
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self._output("goto <address>")
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self._output("Change the PC to address and continue execution.")
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def do_goto(self, args):
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if args == '':
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return self.help_goto()
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self._mpu.pc = self._address_parser.number(args)
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brks = [0x00] # BRK
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self._run(stopcodes=brks)
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def _run(self, stopcodes):
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stopcodes = set(stopcodes)
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breakpoints = set(self._breakpoints)
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mpu = self._mpu
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mem = self._mpu.memory
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if not breakpoints:
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while True:
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mpu.step()
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if mem[mpu.pc] in stopcodes:
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break
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else:
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while True:
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mpu.step()
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pc = mpu.pc
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if mem[pc] in stopcodes:
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break
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if pc in breakpoints:
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msg = "Breakpoint %d reached."
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self._output(msg % self._breakpoints.index(pc))
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break
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def help_radix(self):
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self._output("radix [H|D|O|B]")
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self._output("Set default radix to hex, decimal, octal, or binary.")
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self._output("With no argument, the current radix is printed.")
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def help_cycles(self):
|
|
self._output("Display the total number of cycles executed.")
|
|
|
|
def do_cycles(self, args):
|
|
self._output(str(self._mpu.processorCycles))
|
|
|
|
def do_radix(self, args):
|
|
radixes = {'Hexadecimal': 16, 'Decimal': 10, 'Octal': 8, 'Binary': 2}
|
|
|
|
if args != '':
|
|
new = args[0].lower()
|
|
changed = False
|
|
for name, radix in radixes.items():
|
|
if name[0].lower() == new:
|
|
self._address_parser.radix = radix
|
|
changed = True
|
|
if not changed:
|
|
self._output("Illegal radix: %s" % args)
|
|
|
|
for name, radix in radixes.items():
|
|
if self._address_parser.radix == radix:
|
|
self._output("Default radix is %s" % name)
|
|
|
|
def help_tilde(self):
|
|
self._output("~ <number>")
|
|
self._output("Display a number in decimal, hex, octal, and binary.")
|
|
|
|
def do_tilde(self, args):
|
|
if args == '':
|
|
return self.help_tilde()
|
|
|
|
try:
|
|
num = self._address_parser.number(args)
|
|
self._output("+%u" % num)
|
|
self._output("$" + self.byteFmt % num)
|
|
self._output("%04o" % num)
|
|
self._output(itoa(num, 2).zfill(8))
|
|
except KeyError:
|
|
self._output("Bad label: %s" % args)
|
|
except OverflowError:
|
|
self._output("Overflow error: %s" % args)
|
|
|
|
def help_registers(self):
|
|
self._output("registers[<name>=<value> [, <name>=<value>]*]")
|
|
self._output("Assign respective registers. With no parameters,")
|
|
self._output("display register values.")
|
|
|
|
def do_registers(self, args):
|
|
if args == '':
|
|
return
|
|
|
|
pairs = re.findall('([^=,\s]*)=([^=,\s]*)', args)
|
|
if pairs == []:
|
|
return self._output("Syntax error: %s" % args)
|
|
|
|
for register, value in pairs:
|
|
if register not in ('pc', 'sp', 'a', 'x', 'y', 'p'):
|
|
self._output("Invalid register: %s" % register)
|
|
else:
|
|
try:
|
|
intval = self._address_parser.number(value)
|
|
except KeyError as exc: # label not found
|
|
self._output(exc.args[0])
|
|
continue
|
|
except OverflowError as exc: # wider than address space
|
|
msg = "Overflow: %r too wide for register %r"
|
|
self._output(msg % (value, register))
|
|
continue
|
|
|
|
if register != 'pc':
|
|
if intval != (intval & self.byteMask):
|
|
msg = "Overflow: %r too wide for register %r"
|
|
self._output(msg % (value, register))
|
|
continue
|
|
|
|
setattr(self._mpu, register, intval)
|
|
|
|
def help_cd(self):
|
|
self._output("cd <directory>")
|
|
self._output("Change the working directory.")
|
|
|
|
def do_cd(self, args):
|
|
if args == '':
|
|
return self.help_cd()
|
|
|
|
try:
|
|
os.chdir(args)
|
|
except OSError as exc:
|
|
msg = "Cannot change directory: [%d] %s" % (exc.errno,
|
|
exc.strerror)
|
|
self._output(msg)
|
|
self.do_pwd()
|
|
|
|
def help_pwd(self):
|
|
self._output("Show the current working directory.")
|
|
|
|
def do_pwd(self, args=None):
|
|
cwd = os.getcwd()
|
|
self._output(cwd)
|
|
|
|
def help_load(self):
|
|
self._output("load <filename|url> <address|top>")
|
|
self._output("Load a file into memory at the specified address.")
|
|
self._output('An address of "top" loads into the top of memory.')
|
|
self._output("Commodore-style load address bytes are ignored.")
|
|
|
|
def do_load(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) not in (1, 2):
|
|
self._output("Syntax error: %s" % args)
|
|
return
|
|
|
|
filename = split[0]
|
|
|
|
if "://" in filename:
|
|
try:
|
|
f = urlopen(filename)
|
|
bytes = f.read()
|
|
f.close()
|
|
except Exception as exc:
|
|
msg = "Cannot fetch remote file: %s" % str(exc)
|
|
self._output(msg)
|
|
return
|
|
else:
|
|
try:
|
|
f = open(filename, 'rb')
|
|
bytes = f.read()
|
|
f.close()
|
|
except (OSError, IOError) as exc:
|
|
msg = "Cannot load file: [%d] %s" % (exc.errno, exc.strerror)
|
|
self._output(msg)
|
|
return
|
|
|
|
if len(split) == 2:
|
|
if split[1] == "top":
|
|
# load a ROM to top of memory
|
|
top_address = self.addrMask
|
|
program_size = len(bytes) // (self.byteWidth // 8)
|
|
start = top_address - program_size + 1
|
|
else:
|
|
start = self._address_parser.number(split[1])
|
|
else:
|
|
start = self._mpu.pc
|
|
|
|
if self.byteWidth == 8:
|
|
if isinstance(bytes, str):
|
|
bytes = map(ord, bytes)
|
|
else: # Python 3
|
|
bytes = [ b for b in bytes ]
|
|
|
|
elif self.byteWidth == 16:
|
|
def format(msb, lsb):
|
|
if isinstance(bytes, str):
|
|
return (ord(msb) << 8) + ord(lsb)
|
|
else: # Python 3
|
|
return (msb << 8) + lsb
|
|
bytes = list(map(format, bytes[0::2], bytes[1::2]))
|
|
|
|
self._fill(start, start, bytes)
|
|
|
|
def help_save(self):
|
|
self._output("save \"filename\" <start> <end>")
|
|
self._output("Save the specified memory range as a binary file.")
|
|
self._output("Commodore-style load address bytes are not written.")
|
|
|
|
def do_save(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) != 3:
|
|
self._output("Syntax error: %s" % args)
|
|
return
|
|
|
|
filename = split[0]
|
|
start = self._address_parser.number(split[1])
|
|
end = self._address_parser.number(split[2])
|
|
|
|
mem = self._mpu.memory[start:end + 1]
|
|
try:
|
|
f = open(filename, 'wb')
|
|
for m in mem:
|
|
# output each octect from msb first
|
|
for shift in range(self.byteWidth - 8, -1, -8):
|
|
f.write(bytearray([(m >> shift) & 0xff]))
|
|
f.close()
|
|
except (OSError, IOError) as exc:
|
|
msg = "Cannot save file: [%d] %s" % (exc.errno, exc.strerror)
|
|
self._output(msg)
|
|
return
|
|
|
|
self._output("Saved +%d bytes to %s" % (len(mem), filename))
|
|
|
|
def help_fill(self):
|
|
self._output("fill <address_range> <data_list>")
|
|
self._output("Fill memory in the address range with the data in")
|
|
self._output("<data_list>. If the size of the address range is")
|
|
self._output("greater than the size of the data_list, the data_list ")
|
|
self._output("is repeated.")
|
|
|
|
def do_fill(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) < 2:
|
|
return self.help_fill()
|
|
|
|
try:
|
|
start, end = self._address_parser.range(split[0])
|
|
filler = list(map(self._address_parser.number, split[1:]))
|
|
except KeyError as exc:
|
|
self._output(exc.args[0]) # "Label not found: foo"
|
|
else:
|
|
self._fill(start, end, filler)
|
|
|
|
def _fill(self, start, end, filler):
|
|
address = start
|
|
length, index = len(filler), 0
|
|
|
|
if start == end:
|
|
end = start + length - 1
|
|
if (end > self.addrMask):
|
|
end = self.addrMask
|
|
|
|
while address <= end:
|
|
address &= self.addrMask
|
|
self._mpu.memory[address] = (filler[index] & self.byteMask)
|
|
index += 1
|
|
if index == length:
|
|
index = 0
|
|
address += 1
|
|
|
|
fmt = (end - start + 1, start, end)
|
|
starttoend = "$" + self.addrFmt + " to $" + self.addrFmt
|
|
self._output(("Wrote +%d bytes from " + starttoend) % fmt)
|
|
|
|
def help_mem(self):
|
|
self._output("mem <address_range>")
|
|
self._output("Display the contents of memory.")
|
|
self._output('Range is specified like "<start:end>".')
|
|
|
|
def do_mem(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) != 1:
|
|
return self.help_mem()
|
|
|
|
start, end = self._address_parser.range(split[0])
|
|
|
|
line = self.addrFmt % start + ":"
|
|
for address in range(start, end + 1):
|
|
byte = self._mpu.memory[address]
|
|
more = " " + self.byteFmt % byte
|
|
|
|
exceeded = len(line) + len(more) > self._width
|
|
if exceeded:
|
|
self._output(line)
|
|
line = self.addrFmt % address + ":"
|
|
line += more
|
|
self._output(line)
|
|
|
|
def help_add_label(self):
|
|
self._output("add_label <address> <label>")
|
|
self._output("Map a given address to a label.")
|
|
|
|
def do_add_label(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) != 2:
|
|
self._output("Syntax error: %s" % args)
|
|
return self.help_add_label()
|
|
|
|
try:
|
|
address = self._address_parser.number(split[0])
|
|
except KeyError as exc:
|
|
self._output(exc.args[0]) # "Label not found: foo"
|
|
except OverflowError:
|
|
self._output("Overflow error: %s" % args)
|
|
else:
|
|
label = split[1]
|
|
self._address_parser.labels[label] = address
|
|
|
|
def help_show_labels(self):
|
|
self._output("show_labels")
|
|
self._output("Display current label mappings.")
|
|
|
|
def do_show_labels(self, args):
|
|
values = list(self._address_parser.labels.values())
|
|
keys = list(self._address_parser.labels.keys())
|
|
|
|
byaddress = list(zip(values, keys))
|
|
byaddress.sort()
|
|
for address, label in byaddress:
|
|
self._output(self.addrFmt % address + ": " + label)
|
|
|
|
def help_delete_label(self):
|
|
self._output("delete_label <label>")
|
|
self._output("Remove the specified label from the label tables.")
|
|
|
|
def do_delete_label(self, args):
|
|
if args == '':
|
|
return self.help_delete_label()
|
|
|
|
if args in self._address_parser.labels:
|
|
del self._address_parser.labels[args]
|
|
|
|
def do_width(self, args):
|
|
if args != '':
|
|
try:
|
|
new_width = int(args)
|
|
if new_width >= 10:
|
|
self._width = new_width
|
|
else:
|
|
self._output("Minimum terminal width is 10")
|
|
except ValueError:
|
|
self._output("Illegal width: %s" % args)
|
|
|
|
self._output("Terminal width is %d" % self._width)
|
|
|
|
def help_width(self):
|
|
self._output("width <columns>")
|
|
self._output("Set the width used by some commands to wrap output.")
|
|
self._output("With no argument, the current width is printed.")
|
|
|
|
def do_add_breakpoint(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) != 1:
|
|
self._output("Syntax error: %s" % args)
|
|
return self.help_add_breakpoint()
|
|
|
|
address = self._address_parser.number(split[0])
|
|
|
|
if address in self._breakpoints:
|
|
self._output("Breakpoint already present at $%04X" % address)
|
|
else:
|
|
self._breakpoints.append(address)
|
|
msg = "Breakpoint %d added at $%04X"
|
|
self._output(msg % (len(self._breakpoints) - 1, address))
|
|
|
|
def help_add_breakpoint(self):
|
|
self._output("add_breakpoint <address|label>")
|
|
self._output("Add a breakpoint on execution at the given address or label")
|
|
|
|
def do_delete_breakpoint(self, args):
|
|
split = shlex.split(args)
|
|
if len(split) != 1:
|
|
self._output("Syntax error: %s" % args)
|
|
return self.help_delete_breakpoint()
|
|
|
|
number = None
|
|
try:
|
|
number = int(split[0])
|
|
if number < 0 or number > len(self._breakpoints):
|
|
self._output("Invalid breakpoint number %d", number)
|
|
return
|
|
except ValueError:
|
|
self._output("Illegal number: %s" % args)
|
|
return
|
|
|
|
if self._breakpoints[number] is not None:
|
|
self._breakpoints[number] = None
|
|
self._output("Breakpoint %d removed" % number)
|
|
else:
|
|
self._output("Breakpoint %d already removed" % number)
|
|
|
|
def help_delete_breakpoint(self):
|
|
self._output("delete_breakpoint <number>")
|
|
self._output("Delete the breakpoint on execution marked by the given number")
|
|
|
|
def do_show_breakpoints(self, args):
|
|
for i, address in enumerate(self._breakpoints):
|
|
if address is not None:
|
|
bpinfo = "Breakpoint %d: $%04X" % (i, address)
|
|
label = self._address_parser.label_for(address)
|
|
if label is not None:
|
|
bpinfo += " " + label
|
|
self._output(bpinfo)
|
|
|
|
def help_show_breakpoints(self):
|
|
self._output("show_breakpoints")
|
|
self._output("Lists the currently assigned breakpoints")
|
|
|
|
def main(args=None):
|
|
c = Monitor()
|
|
|
|
try:
|
|
import readline
|
|
readline = readline # pyflakes
|
|
except ImportError:
|
|
pass
|
|
|
|
try:
|
|
c.onecmd('version')
|
|
c.cmdloop()
|
|
except KeyboardInterrupt:
|
|
c._output('')
|
|
|
|
if __name__ == "__main__":
|
|
main()
|