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• feb5e7ad60 Simplifications carried over from the Z80 implementation. Adrian Conlon 2018-06-23 16:43:05 +01:00
• 53461e712f Corrected for use with the latest EightBit library. Adrian Conlon 2018-06-17 21:08:01 +01:00
• 757d8f3c32 Reduce code density a little. Adrian Conlon 2018-06-16 10:09:28 +01:00
• 7d25962f3c Remove commented block. Adrian Conlon 2018-06-16 09:56:16 +01:00
• d27b490d4c (Hopefully) fix compilation issue on g++ Adrian Conlon 2018-06-16 09:53:44 +01:00
• 67487b5b6e Simplify the usage of the register16_t union. Adrian Conlon 2018-06-16 00:55:32 +01:00
• 89632774a7 Bring closer to the Z80 implementation again. Adrian Conlon 2018-06-11 23:02:27 +01:00
• 7cb5e137f4 Some small simplifications of the 16-bit arithmetic operators. Adrian Conlon 2018-06-11 23:01:48 +01:00
• 2d8c3d4b12 Simplify AF usage. Keeps speed roughly as before Adrian Conlon 2018-06-11 00:50:46 +01:00
• fbf098ae00 Simplify memory event handlers and ROM recognition a little (bit of speed difference) Adrian Conlon 2018-06-10 22:00:52 +01:00
• 3e854c7c49 Const some more bus/processor usage, and ensure the data bus is a member, not a reference to memory. Adrian Conlon 2018-06-10 00:40:56 +01:00
• 7531f8a24a Remove extra stdafx include (Signal.h) Adrian Conlon 2018-05-25 22:38:12 +01:00
• 116f9961c4 Add a higher/lower nibble mask Adrian Conlon 2018-05-25 22:36:10 +01:00
• ae177b9b92 Remove unnecessary member variable initialisation. Adrian Conlon 2018-05-04 04:12:25 +01:00
• 05fd9cf5bb Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2018-05-04 03:39:35 +01:00
• 740cf01085 Slightly better use of vector/array for pixel display. Adrian Conlon 2018-05-04 03:38:39 +01:00
• 3e87f8a191 Whoops: correct parity definition Adrian Conlon 2018-05-02 03:31:05 +01:00
• 0b2c1fa084 Gameboy, some random tidy ups. Adrian Conlon 2018-05-02 02:47:47 +01:00
• 9de0f597f6 Remove some "tricksy" code from the Z80 emulator chain. Adrian Conlon 2018-04-14 09:39:06 +01:00
• 4b4f6b1a49 Some *small* consistency changes. Perhaps some performance gains. Adrian Conlon 2018-04-11 23:53:26 +01:00
• d818095815 MEMPTR is really only a concept of Intel style processors. Adrian Conlon 2018-03-18 22:40:23 +00:00
• 97a121b8d4 Unneeded UNREACHABLEs can cause gcc to produce problematic code. TBC Adrian Conlon 2018-03-17 23:34:27 +00:00
• dac58b121a More small tidyups in the core emulator set. Adrian Conlon 2018-03-12 01:22:28 +00:00
• bebc68539b Correct sneaky reference passing in heavily used method. (~205Mhz emulated speed) Adrian Conlon 2018-03-10 10:53:11 +00:00
• 45dc274167 Get rid of wrappers for bus access: i.e. make it clearer where the bus is being read/written. Adrian Conlon 2018-03-10 01:53:57 +00:00
• c6eb68ba13 Further return by value, rather than reference. Adrian Conlon 2018-02-26 19:47:35 +00:00
• 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... Adrian Conlon 2018-02-25 19:48:01 +00:00
• d34b161255 Simplify some build options. Adrian Conlon 2018-02-19 23:18:21 +00:00
• 7f501ff29c Temporarily perhaps, reintroduce post-read and pre-write bus events (for the NES) Adrian Conlon 2018-02-07 23:00:38 +00:00
• 1bf2a9bdfb 6502, Disassembly: Some dump methods can be static Adrian Conlon 2018-01-27 10:13:17 +00:00
• 9524cf4c6b Adjust memory loaders, to allow easier usage (default arguments) Adrian Conlon 2018-01-25 22:24:08 +00:00
• 9124f10008 6502: Implement some more undocumented instructions (for the Blargg nes cpu tests) Adrian Conlon 2018-01-21 10:45:25 +00:00
• b5fee5b5d9 Make explicit the notion of page based loads in M6502. Adrian Conlon 2018-01-18 21:17:45 +00:00
• 21bd8a06e6 Power on conditions are chip specific and *not* directly related to construction/destruction. Adrian Conlon 2018-01-18 17:50:15 +00:00
• 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) Adrian Conlon 2018-01-17 22:17:08 +00:00
• d57cb8c9be 6502: I might regret this, but move to a vector of instructions, rather than decoding them one at a time Adrian Conlon 2018-01-16 23:54:43 +00:00
• 43573ac699 6502: Rotate and shift by value, not reference. Adrian Conlon 2018-01-14 21:03:29 +00:00
• 4bd1a1eab1 M6502: Couple of small C++ usage changes: shouldn't be any functional effects. Adrian Conlon 2018-01-12 23:32:06 +00:00
• 177dbbcd33 Tidy 6502 PLP implementation a little. Adrian Conlon 2018-01-12 20:39:15 +00:00
• ac95670cfc Add support for 6502 pin 38 (SO: set overflow) Adrian Conlon 2018-01-12 20:13:35 +00:00
• 290ab7a4dc More 8080 simplifications. No need to have it act like a Z80 under the hood. Adrian Conlon 2018-01-11 00:02:44 +00:00
• 29edc46966 Simplify some MEMPTR usage in Intel processors. Adrian Conlon 2018-01-10 23:08:14 +00:00
• 3bd01e211e Try to avoid so many virtual calls in the Z80 by hanging onto AF a little longer. Adrian Conlon 2018-01-09 23:30:51 +00:00
• 0a2873c40d Add AllSuiteA test suite (works fine) Adrian Conlon 2018-01-09 20:18:03 +00:00
• ffb945a46d Add some documentation (!) for undocumented 6502 instructions. Adrian Conlon 2018-01-07 23:48:27 +00:00
• 847e07be86 Add undocumented 6502 instruction RRA. nestest.nes now runs to completion: Hurrah! Adrian Conlon 2018-01-07 23:42:26 +00:00
• 4d9c0b490a Add undocumented 6502 instruction: SRE Adrian Conlon 2018-01-07 23:16:24 +00:00
• 65b856611e Undocumented 6502 instruction RLA added. Adrian Conlon 2018-01-07 22:50:14 +00:00
• 31524929c3 Correct Windows path style to platform neutral. Adrian Conlon 2018-01-06 23:26:34 +00:00
• 5b62a6b70b Sort out M6502 precompiled headers. Adrian Conlon 2018-01-06 23:19:29 +00:00
• 47919fe5af 6502 linux compatibility in Makefile Adrian Conlon 2018-01-06 23:19:07 +00:00
• 809973acb3 Couple more linux changes for the 6502... Adrian Conlon 2018-01-06 22:35:17 +00:00
• 08d742e336 Linux compatibility changes. Adrian Conlon 2018-01-06 22:18:02 +00:00
• 2482a7b742 Moved the 6502 test directory to something a little more standard. Adrian Conlon 2018-01-06 22:10:02 +00:00
• c239bc2346 Whoops: Missed top-level support for 6502. Adrian Conlon 2018-01-06 21:40:04 +00:00
• 2311ea98c6 Add preliminary Linux support for 6502 builds. Adrian Conlon 2018-01-06 21:37:03 +00:00
• 0d3fee5daf Strictly not required, but makes life easier: add the 6502 test binary. Adrian Conlon 2018-01-06 21:31:25 +00:00
• 108f66632e Performance: watch out for unnecessary virtualised methods. Adrian Conlon 2018-01-06 17:13:02 +00:00
• 28f11b15bb Whoops: forgot that load data direct needs to be disabled when loading from binary. Adrian Conlon 2018-01-05 20:52:36 +00:00
• 6ddb57fadb Updated to latest version of the Klaus Dormann 6502 tests. Adrian Conlon 2018-01-05 19:42:34 +00:00
• 5c3568aebd Undocumented instruction: SLO added Adrian Conlon 2018-01-04 22:46:44 +00:00
• cb89eb8c82 Add undocumented 6502 instruction: ISB Adrian Conlon 2018-01-04 21:47:50 +00:00
• 12565966de Remove some assertions from the 6502 implementation. Adrian Conlon 2018-01-02 23:24:52 +00:00
• 4d5afb67a3 Refactor the 6502 code a little. No functional changes and tests still seem to work. Adrian Conlon 2018-01-02 21:20:47 +00:00
• 345ab2e2c6 Undocumented instruction: DCP added Adrian Conlon 2018-01-01 21:05:42 +00:00
• 5f54f61514 Undocumented variant of SBC added. Adrian Conlon 2018-01-01 12:55:47 +00:00
• 1beee9782f Undocumented instruction: SAX added Adrian Conlon 2018-01-01 12:46:21 +00:00
• 75aece30e3 Undocumented instruction: LAX added. Adrian Conlon 2018-01-01 12:28:00 +00:00
• d4c08b2a25 Use portability macros in the 6502 disassembler. Adrian Conlon 2018-01-01 01:16:22 +00:00
• eb40c0865e Started added undocumented instructions: first the NOPS (single, double and triple byte variants, including cycle variations). Adrian Conlon 2017-12-31 14:41:00 +00:00
• 82fe35891d Linux compatibility changes Adrian Conlon 2017-12-30 15:22:27 +00:00
• 2683999e2c Mild refactoring, no functional change... Adrian Conlon 2017-12-30 14:33:48 +00:00
• 8e4030a5aa Add some performance hints to conditionals. Adrian Conlon 2017-12-29 14:56:26 +00:00
• 412a44fafd Correct some page crossing conditions affecting 6502 cycle counts. Adrian Conlon 2017-12-29 14:49:53 +00:00
• 0604d5cf22 Actually, all 6502 getWord usage has an invariant high page indicator. Adrian Conlon 2017-12-29 11:50:24 +00:00
• 7432e602f8 Correct a 6502 bug in absolute indirect addressing mode (unchanging page on address resolution). Adrian Conlon 2017-12-28 16:15:22 +00:00
• 1946b7ef39 Correct a couple of flag anomalies in the 6502 processor highlighted by NESTEST Adrian Conlon 2017-12-28 15:53:30 +00:00
• dcf99bf65d Zero page indirection should completely ignore the high byte of the address line. Adrian Conlon 2017-12-28 15:16:21 +00:00
• bfa1c07ea4 Change a couple of small formatting quirks in the disassembler to better match "nestest". Adrian Conlon 2017-12-28 14:18:17 +00:00
• d4782a66db Some small changes for NES support: hopefully not broken anything! Adrian Conlon 2017-12-26 22:46:16 +00:00
• df1f47fb36 Simplify Linux build configurations. Adrian Conlon 2017-12-25 23:45:55 +00:00
• c05a236f1d Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2017-12-25 23:35:08 +00:00
• 81ed53ce11 First stab at a Ricoh 2A03: A 6502 minus decimal mode support. Adrian Conlon 2017-12-25 23:34:56 +00:00
• 870d7528ce Include full symbols in all linux builds. Adrian Conlon 2017-12-23 23:25:37 +00:00
• 637c0c68fa Correct a couple of merge issues. Adrian Conlon 2017-12-12 23:12:45 +00:00
• c8dd6e7267 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2017-12-12 23:08:34 +00:00
• c5b7b06e59 Whoops: correct macro expansion. Adrian Conlon 2017-12-12 23:05:54 +00:00
• 697bfb636d A more succinct definition of the LR35902 interrupt mechanism. Adrian Conlon 2017-12-12 22:29:37 +00:00
• a1c753d63e Couple of small tidy ups on the LR35902 implementation. Adrian Conlon 2017-12-10 21:57:32 +00:00
• 1edabd79f3 More pinout oriented method of executing instructions (especially interrupts) Adrian Conlon 2017-12-10 21:41:48 +00:00
• 384484d228 Add i8080 builds to the top level makefile. Adrian Conlon 2017-12-05 21:56:33 +00:00
• fb305268b1 (Hopefully) Get the i8080 test suite up and running on Linux. Adrian Conlon 2017-12-05 21:53:54 +00:00
• 3d88a8f6d1 Couple of small changes in LIKELY/UNLIKELY usage. Adrian Conlon 2017-12-05 21:40:23 +00:00
• 6a47f710b9 More consistency updates between i8080 and Z80. Adrian Conlon 2017-12-04 23:41:49 +00:00
• 1bf797490b Tidy the i8080 interrupt handling to be more like the Z80 implementation Adrian Conlon 2017-12-04 23:20:55 +00:00
• f1b3fc1932 Correct at least some of the problems with the Z80 interrupt rewrite Adrian Conlon 2017-12-04 21:59:38 +00:00
• 23f7a88480 Further 8080/Z80 interrupt rewrite Adrian Conlon 2017-12-03 00:57:47 +00:00
• 4f5e231dc4 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2017-12-02 23:55:44 +00:00
• 7e3957d4db Rewrite i8080 interrupts to be more closely related to the hardware. Adrian Conlon 2017-12-02 23:50:59 +00:00
• def14493cb Allow fallback for where intrinsics aren't available. Adrian Conlon 2017-12-02 19:01:07 +00:00