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74 lines
2.0 KiB
Plaintext
74 lines
2.0 KiB
Plaintext
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====================================================================
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SYMON - A 6502 System Simulator
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====================================================================
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NOTE: THIS IS PRE-RELEASE SOFTWARE UNDER ACTIVE DEVELOPMENT. IT IS
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NOT YET FUNCTIONAL! IT IS NOT INTENDED TO BE USED BY ANYONE BUT
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DEVELOPERS IMPLEMENTING CORE FUNCTIONALITY. When the software is
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deemed ready for testing, it will be given a version number of "0.1".
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====================================================================
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Version: PRERELEASE
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Last Updated: 27 December, 2008
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Copyright (c) 2008,2009 Seth J. Morabito <sethm@loomcom.com>
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See the file COPYING for license.
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1.0 About
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---------
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Symon is a general purpose simulator for systems based on the NMOS
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Mostek 6502 microprocessor and compatibles. Symon is implemented in
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Java. It's core goals are accuracy, ease of development, clear
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documentation, and extensive test suites for validating correctness.
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The initial goal is to simulate a system with an NMOS 6502 or CMOS
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65C02 central processor; one or more 6522 VIAs; and one or more 6551
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ACIAs. More functionality may be considered as time goes on.
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2.0 Usage
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---------
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2.1 Requirements
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- Java 1.5 or higher
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- Maven 2.0.x or higher (for building from source)
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- JUnit 3.0 or higher (for testing)
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(More to come!)
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3.0 To Do
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---------
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- Finish core functionality.
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- Implement remaining addressing modes.
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COMPLETED ADDRESSING MODES:
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o Implied
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o Immediate
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o Zero Page
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o Accumulator
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INCOMPLETE ADDRESSING MODES:
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o Zero Page, X-indexed
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o Zero Page, Y-indexed
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o Relative
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o Absolute
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o Absolute, X-indexed
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o Absolute, Y-indexed
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o Indirect
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o Indexed Indirect [ (Indirect ,X) ]
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o Indirect Indexed [ (Indirect),Y ]
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- Clean up JavaDoc.
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- Implement CMOS 65C02 instructions and NMOS / CMOS mode flag.
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4.0 Licensing
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-------------
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Symon is free software. It is distributed under the MIT License.
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Please see the file 'COPYING' for full details of the license. |