Adrian Conlon
|
fbf098ae00
|
Simplify memory event handlers and ROM recognition a little (bit of speed difference)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-06-10 22:00:52 +01:00 |
|
Adrian Conlon
|
3e854c7c49
|
Const some more bus/processor usage, and ensure the data bus is a member, not a reference to memory.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-06-10 00:40:56 +01:00 |
|
Adrian Conlon
|
7531f8a24a
|
Remove extra stdafx include (Signal.h)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-05-25 22:38:12 +01:00 |
|
Adrian Conlon
|
4b4f6b1a49
|
Some *small* consistency changes. Perhaps some performance gains.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-04-11 23:53:26 +01:00 |
|
Adrian Conlon
|
d818095815
|
MEMPTR is really only a concept of Intel style processors.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-03-18 22:40:23 +00:00 |
|
Adrian Conlon
|
dac58b121a
|
More small tidyups in the core emulator set.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-03-12 01:22:28 +00:00 |
|
Adrian Conlon
|
45dc274167
|
Get rid of wrappers for bus access: i.e. make it clearer where the bus is being read/written.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-03-10 01:53:57 +00:00 |
|
Adrian Conlon
|
c6eb68ba13
|
Further return by value, rather than reference.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-02-26 19:47:35 +00:00 |
|
Adrian Conlon
|
adf506a41e
|
Optimisation: Prefer return by value to return by reference. ~10% speed-up!
Just watch a video by Chandler Carruth from 2015, where he talked about C++ optimisers...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-02-25 19:48:01 +00:00 |
|
Adrian Conlon
|
d34b161255
|
Simplify some build options.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-02-19 23:18:21 +00:00 |
|
Adrian Conlon
|
1bf2a9bdfb
|
6502, Disassembly: Some dump methods can be static
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-27 10:13:17 +00:00 |
|
Adrian Conlon
|
9124f10008
|
6502: Implement some more undocumented instructions (for the Blargg nes cpu tests)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-21 10:45:25 +00:00 |
|
Adrian Conlon
|
b5fee5b5d9
|
Make explicit the notion of page based loads in M6502.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-18 21:17:45 +00:00 |
|
Adrian Conlon
|
21bd8a06e6
|
Power on conditions are chip specific and *not* directly related to construction/destruction.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-18 17:50:15 +00:00 |
|
Adrian Conlon
|
19aea5244b
|
The vector of instructions was good, but a switch is fastest and probably easiest to read/modify. (Running at 101Mz, 32M instructions per second)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-17 22:17:08 +00:00 |
|
Adrian Conlon
|
d57cb8c9be
|
6502: I might regret this, but move to a vector of instructions, rather than decoding them one at a time
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-16 23:54:43 +00:00 |
|
Adrian Conlon
|
43573ac699
|
6502: Rotate and shift by value, not reference.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-14 21:03:29 +00:00 |
|
Adrian Conlon
|
4bd1a1eab1
|
M6502: Couple of small C++ usage changes: shouldn't be any functional effects.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-12 23:32:06 +00:00 |
|
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 |
|
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 |
|