Commit Graph

108 Commits

Author SHA1 Message Date
Adrian Conlon
75aece30e3 Undocumented instruction: LAX added.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-01 12:28:00 +00:00
Adrian Conlon
d4c08b2a25 Use portability macros in the 6502 disassembler.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-01 01:16:22 +00:00
Adrian Conlon
eb40c0865e Started added undocumented instructions: first the NOPS (single, double and triple byte variants, including cycle variations).
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-31 14:41:00 +00:00
Adrian Conlon
82fe35891d Linux compatibility changes
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-30 15:22:27 +00:00
Adrian Conlon
2683999e2c Mild refactoring, no functional change...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-30 14:33:48 +00:00
Adrian Conlon
8e4030a5aa Add some performance hints to conditionals.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-29 14:56:26 +00:00
Adrian Conlon
412a44fafd Correct some page crossing conditions affecting 6502 cycle counts.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-29 14:49:53 +00:00
Adrian Conlon
0604d5cf22 Actually, all 6502 getWord usage has an invariant high page indicator.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-29 11:50:24 +00:00
Adrian Conlon
7432e602f8 Correct a 6502 bug in absolute indirect addressing mode (unchanging page on address resolution).
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-28 16:15:22 +00:00
Adrian Conlon
1946b7ef39 Correct a couple of flag anomalies in the 6502 processor highlighted by NESTEST
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-28 15:53:30 +00:00
Adrian Conlon
dcf99bf65d Zero page indirection should completely ignore the high byte of the address line.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-28 15:16:21 +00:00
Adrian Conlon
bfa1c07ea4 Change a couple of small formatting quirks in the disassembler to better match "nestest".
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-28 14:18:17 +00:00
Adrian Conlon
81ed53ce11 First stab at a Ricoh 2A03: A 6502 minus decimal mode support.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-25 23:34:56 +00:00
Adrian Conlon
1edabd79f3 More pinout oriented method of executing instructions (especially interrupts)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-10 21:41:48 +00:00
Adrian Conlon
23f7a88480 Further 8080/Z80 interrupt rewrite
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-03 00:57:47 +00:00
Adrian Conlon
c513f0cab1 GSL was too problematic when used with GCC. Removed.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-20 19:17:49 +00:00
Adrian Conlon
67c27d4a3e GSL + CPP core guidelines changes.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-18 14:29:30 +00:00
Adrian Conlon
dea1847280 Unify more VS2017 build configurations
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-12 10:38:05 +00:00
Adrian Conlon
0b6ef3d4dd VS2017 and CPP core guidelines updates
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-11 15:13:26 +00:00
Adrian Conlon
d4f1614ffa Updated for VS2017
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-10 23:01:10 +00:00
Adrian Conlon
c292fb552e A whole bunch of consistency changes. No functional changes.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-11-03 22:05:01 +00:00
Adrian Conlon
0d3776d3ec Get the 6502 tests running again.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-10-28 13:06:56 +01:00
Adrian.Conlon
a77e57e5fc Add pre/post read/write memory events.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-09-13 23:12:47 +01:00
Adrian.Conlon
2c92e4d389 Updated for appveyor library location compatibility.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-09-12 13:30:56 +01:00
Adrian.Conlon
c472d70c5c Ensure the MOS6502 unit tests run successfully to completion.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-09-07 00:58:56 +01:00
Adrian.Conlon
9b43b74c28 Rationalise some of the reset/initialise logic across pProcessor implementations.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-09-01 16:01:40 +01:00
Adrian.Conlon
20c126adfc Correct a couple of cycle counting issues.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-31 01:19:51 +01:00
Adrian.Conlon
e70686c5de Some more rationalisation of processor execution/stepping strategies.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-30 23:17:34 +01:00
Adrian.Conlon
d710a28526 More consolidation of instruction implementations.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-28 21:18:08 +01:00
Adrian.Conlon
329fd269ed Share some more code from the 6502 processor implementation.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-28 18:52:48 +01:00
Adrian.Conlon
59e9adf57c Share more of push/pop implementation across processors.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-28 13:19:17 +01:00
Adrian.Conlon
2c7e32aa78 First stab at implementing MBC1 support for LR35902. Not complete, but all old tests still work.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-23 23:17:45 +01:00
Adrian.Conlon
12c9125e9b Correct warning in 6502 implementation.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-23 22:30:58 +01:00
Adrian.Conlon
99c2e2a719 Tidy up the 10 addressing mode write set to make it clearer when memory writes occur.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-07 21:25:21 +01:00
Adrian.Conlon
aa720c4c12 Pass all Klaus Dormann tests again: correct AM_10 write algorithm.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-07 21:02:31 +01:00
Adrian.Conlon
016b3bca59 Switch to a memory read/write event driven model. All tests passing.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-08-06 17:06:48 +01:00
Adrian.Conlon
b6dd48ca63 Some more small clarifications of shared processor implementation.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-25 18:56:43 +01:00
Adrian.Conlon
017b2a6442 Tidy up memory event handling to make it a bit easier to verify read/write events.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-17 21:00:05 +01:00
Adrian.Conlon
13725b7a3c Tidy method casing a little.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-17 15:35:24 +01:00
Adrian.Conlon
4f491f110e Make the 6502 a little more compatible with other processor implementations.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-17 13:46:06 +01:00
Adrian.Conlon
867b0d5260 Add more flexible configuration class for 6502
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-17 10:16:15 +01:00
Adrian.Conlon
71d213faec Ensure that memory read/write events are triggered.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-16 10:40:38 +01:00
Adrian.Conlon
d522b694bd Make the flag adjustment a little more consistent with the rest of my emulators.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-16 10:05:49 +01:00
Adrian.Conlon
d1bb49143d Reinstate operation timings (TBC)
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-15 23:19:46 +01:00
Adrian.Conlon
3084d2341c New improved disassembler for 6502: much smaller than before.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-14 17:22:28 +01:00
Adrian.Conlon
7ff7ee040f Experimental decoding 6502 interpreter. Runs Klaus Dormann tests to completion.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-13 12:02:44 +01:00
Adrian.Conlon
8c81a27224 "Modernise" the 6502 emulator a little. Not complete, but does successfully complete Klaus Dormann tests.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-11 21:34:01 +01:00
Adrian.Conlon
d3c0494fb3 Switch back to use standard bit encoded fields.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-10 15:51:33 +01:00
Adrian.Conlon
8256d97b60 Modified to work with my builds of the Klaus Dormann 6502 test suite.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-08 01:04:20 +01:00
Adrian.Conlon
3146867101 Correct a couple of exception throws.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-07 19:40:15 +01:00
Adrian.Conlon
7cd0f324de Better register definitions for the 6502
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-07 09:24:58 +01:00
Adrian.Conlon
f970c45005 Get the loop exit conditions worked out.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-06 21:32:52 +01:00
Adrian.Conlon
04fd979e56 6502: Better wrapping for the executing/executed events to avoid "fetchByte" issue.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-06 12:02:41 +01:00
Adrian.Conlon
4cd2dc68e1 Correct some (but not all!) project configuration anomalies.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-05 19:36:25 +01:00
Adrian.Conlon
7910ada7fa First stab at a running M6502 test suite. Running Klaus Dormann tests
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-05 17:46:02 +01:00
Adrian.Conlon
8f84d57fe1 A few small tidy ups.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-02 22:23:20 +01:00
Adrian.Conlon
88d3e4fd47 Initial stab at getting MOS6502 imported to the EightBit library.
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-07-02 22:03:33 +01:00
Adrian.Conlon
105032f08a Dump of all my C++ emulators, only Intel8080 integrated so far...
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
2017-06-04 21:38:34 +01:00