Py65

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- Added ez_setup.py to bootstrap setuptools installation.

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- Added shortcuts for monitor commands such as "m" for "memory". These
are mostly the same as the VICE monitor shortcuts.

- The terminal width can now be changed in the monitor using the new
"width" command. Some commands, like "mem", will wrap to this width.

- Fixed a bug where BRK would increment PC by 3 instead of 2. Thanks
to Oscar Lindberg.

- Added a new 65C02 MPU simulation started by Oscar Lindberg. It is
now mostly complete.

- Added a new "mpu" command to the monitor. It will switch between the
NMOS 6502 and CMOS 65C02 simulations.

- A new "devices" module has been added to organize device simulations.

- The mpu6502 and mpu65c02 devices have been reorganized internally to
use Python decorators to build their lookup tables based on an
idea by Oscar Lindberg.

- A new "utils" module has been added with various utility functions.

- The ObservableMemory interface has been changed for clarity.

- Python 2.4 or later is now required.

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- Added a new "disassemble" command to the monitor. It can disassemble
any range of memory ("disassemble c000:c010"). If labels have been
defined, the disassembly will show them in the operands.

- Added a new "assemble" command to the monitor. It can assemble a
single instruction at an address ("assemble c000 jsr $ffd2").
Labels in the operands are also supported ("assemble c000 jsr charout").

- Moved the character I/O area from $E000 to $F000 for compatibility with
the EhBASIC binary saved from Michal Kowalski's Windows-based simulator.
In a future version of Py65, the I/O area will be configurable.

- When running a program in the monitor, a read to $F004 will now do a
non-blocking read from STDIN. If no character is available, a null
byte ($00) will be returned.

- Fixed a bug where a CMP instruction could crash the simulator due to
an undefined variable.

- EhBASIC 2.09 now runs in the simulator!

- Documented all remaining monitor commands. In the monitor, use the
command "help command" for help on any command.

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- First release.