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symon
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283 Commits 6 Branches 12 Tags 2.9 MiB
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283 Commits

Author SHA1 Message Date
Seth J. Morabito 7766e76362 BCD is finally working. I thought that would never happen. 
All Immediate Mode and Implied Mode opcodes have been implemented.  Next up, zero page!
 2008-12-27 01:43:07 -08:00
Seth J. Morabito 06ed74e89c Fixed the BRK instruction. Added SBC and ADC in Binary Coded Decimal 
mode.  More unit tests.
 2008-12-26 02:13:11 -08:00
Seth J. Morabito b46c4e1bec Finished implementing all implied mode instructions, with tests. 2008-12-23 16:36:09 -08:00
Seth J. Morabito f012ba7775 More implied mode instructions implemented, with tests. 2008-12-23 16:06:09 -08:00
Seth J. Morabito 473b47e832 At long last, implemented BRK. Lots more unit tests for stack processing, as well. 2008-12-23 02:21:27 -08:00
Seth J. Morabito 46a5943736 Implemented set/clear flag instructions. More tests, but SBC is still BROKEN. 2008-12-20 02:00:45 -08:00
Seth J. Morabito 088b0823e1 More unit tests. SBC partially working, but I need to figure out what's going wrong. 2008-12-15 02:26:13 -08:00
Seth J. Morabito 1bd59b048b Some API changes, lots of test changes. 2008-12-14 23:43:04 -08:00
Seth J. Morabito 6443cacdb9 Implemented ADC 2008-12-14 01:54:53 -08:00
sethm 1c6c5fdaeb Implemented boolean immediate mode instructions. 2008-12-14 01:09:23 -08:00
Seth Morabito 3f74489757 Renamed project to "Symon". 2008-12-13 14:59:22 -08:00
Seth Morabito 9a6a256073 1. CPU now correctly sets Zero and Negative flags for LDA, LDX, and LDY 
immediate mode instructions.

2. Added unit tests for LDA, LDX, LDY immediate mode instructions.
 2008-12-13 01:53:15 -08:00
sethm 59e5572039 Process Status Register bits have been added. 2008-12-13 00:50:14 -08:00
Seth Morabito 7e36444193 Added stack functions. 2008-12-12 01:02:31 -08:00
Seth Morabito 6915331cca Added LDX, LDY immediate. 2008-12-12 00:45:55 -08:00
sethm fb3db6b65f Our first test program is running! 2008-12-12 00:37:54 -08:00
sethm 7ccde7dc1b Reformatting 2008-12-11 21:47:41 -08:00
Seth Morabito d18c1c7f82 Instruction Table interface. 2008-12-11 19:33:44 -08:00
Seth Morabito 8df561d292 Changed the CPU and Device interface a bit. 2008-12-11 17:22:39 -08:00
Seth J. Morabito a54dbc323d Profiling. Made a new directory for exceptions. 2008-12-11 16:38:39 -08:00
Seth Morabito 6f678af3df Renamed AddressDecoder to Bus 2008-12-11 11:41:05 -08:00
Seth J. Morabito 0e212e71e5 Tests for AddressDecoder. Fixed a bug in isComplete(). 2008-12-10 19:57:38 -08:00
Seth Morabito af7743b385 Much saner implementation of 'overlaps' method. 2008-12-08 22:12:28 -08:00
Seth J. Morabito 5bbd72d44e Unit testing. MemoryRange work. 2008-12-08 20:40:27 -08:00
Seth J. Morabito 541e7c609c Fixed configuration for Cobertura. Requires Cobertura 2.2 so the location of the instrumentation file can be found under the 'target' directory 2008-12-08 14:57:00 -08:00
Seth J. Morabito 929c7df9b0 Added Cobertura (formerly jcoverage) plugin to pom.xml 2008-12-08 14:45:22 -08:00
Seth J. Morabito 061eeba85c There is already an existing project (albeit defunct) named j6502. Name changed to lm6502. 2008-12-08 14:28:44 -08:00
Seth J. Morabito 316d0feac6 Standardized tabs, indent, and whitespace. Finally! 2008-12-08 14:03:23 -08:00
Seth Morabito e3300d3166 Lots of whitespace changes after importing the project into Eclipse 2008-12-06 14:39:54 -08:00
Seth Morabito a6abc2cd23 Fleshing out some of the interface for the CPU, Simulator, and Devices. 2008-12-05 20:00:48 -08:00
Seth J. Morabito 0163ae47b4 Nicer prompt 2008-12-05 18:09:32 -08:00
Seth J. Morabito a74322459a Command Parser. 2008-12-05 18:03:00 -08:00
Seth J. Morabito 7f31c4c950 Initial project creation 2008-12-05 16:44:33 -08:00