Commit Graph

82 Commits

Author SHA1 Message Date
Adrian Conlon
177dbbcd33 Tidy 6502 PLP implementation a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-12 20:39:15 +00:00
Adrian Conlon
ac95670cfc Add support for 6502 pin 38 (SO: set overflow)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-12 20:13:35 +00:00
Adrian Conlon
0a2873c40d Add AllSuiteA test suite (works fine)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-09 20:18:03 +00:00
Adrian Conlon
ffb945a46d Add some documentation (!) for undocumented 6502 instructions.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-07 23:48:27 +00:00
Adrian Conlon
847e07be86 Add undocumented 6502 instruction RRA. nestest.nes now runs to completion: Hurrah!
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-07 23:42:26 +00:00
Adrian Conlon
4d9c0b490a Add undocumented 6502 instruction: SRE
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-07 23:16:24 +00:00
Adrian Conlon
65b856611e Undocumented 6502 instruction RLA added.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-07 22:50:14 +00:00
Adrian Conlon
31524929c3 Correct Windows path style to platform neutral. 2018-01-06 23:26:34 +00:00
Adrian Conlon
5b62a6b70b Sort out M6502 precompiled headers.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 23:19:29 +00:00
Adrian Conlon
47919fe5af 6502 linux compatibility in Makefile
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 23:19:07 +00:00
Adrian Conlon
809973acb3 Couple more linux changes for the 6502...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 22:35:17 +00:00
Adrian Conlon
08d742e336 Linux compatibility changes.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 22:18:02 +00:00
Adrian Conlon
2482a7b742 Moved the 6502 test directory to something a little more standard.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 22:10:02 +00:00
Adrian Conlon
2311ea98c6 Add preliminary Linux support for 6502 builds.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 21:37:03 +00:00
Adrian Conlon
0d3fee5daf Strictly not required, but makes life easier: add the 6502 test binary.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-06 21:31:25 +00:00
Adrian Conlon
28f11b15bb Whoops: forgot that load data direct needs to be disabled when loading from binary.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-05 20:52:36 +00:00
Adrian Conlon
6ddb57fadb Updated to latest version of the Klaus Dormann 6502 tests.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-05 19:42:34 +00:00
Adrian Conlon
5c3568aebd Undocumented instruction: SLO added
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-04 22:46:44 +00:00
Adrian Conlon
cb89eb8c82 Add undocumented 6502 instruction: ISB
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-04 21:47:50 +00:00
Adrian Conlon
12565966de Remove some assertions from the 6502 implementation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-02 23:24:52 +00:00
Adrian Conlon
4d5afb67a3 Refactor the 6502 code a little. No functional changes and tests still seem to work.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-02 21:20:47 +00:00
Adrian Conlon
345ab2e2c6 Undocumented instruction: DCP added
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-01 21:05:42 +00:00
Adrian Conlon
5f54f61514 Undocumented variant of SBC added.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-01 12:55:47 +00:00
Adrian Conlon
1beee9782f Undocumented instruction: SAX added
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-01-01 12:46:21 +00:00
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