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• c3d2ef51d9 Cycle accuracy for a couple of the indexed write (store) instructions. Adrian Conlon 2019-01-06 20:39:37 +00:00
• 4d3be9e756 Use correct boundary crossing conditional for Read/Modify/Write Absolute,X addressing mode. Adrian Conlon 2019-01-06 12:58:13 +00:00
• baf32cef89 Get the memory access more correct for more of boundary crossing indexed addressing modes. Adrian Conlon 2019-01-06 12:17:43 +00:00
• a13ad5042a Correct constructions of register16_t: the structure is "#ifdef"ed for different endian arrangements. Adrian Conlon 2019-01-06 11:27:43 +00:00
• 3749585398 Cycle accuracy changes for BRK/RTI instructions. Adrian Conlon 2019-01-06 11:13:49 +00:00
• 5b9c348ff1 Remove nodiscard instance where we're using the method for cycle/memory accuracy. Adrian Conlon 2019-01-06 11:10:05 +00:00
• 3337f57747 More cycle accuracy changes, concentrating on stack operations. Adrian Conlon 2019-01-05 23:21:43 +00:00
• f5125b2a35 Add some documentation regarding instruction cycle timings. Adrian Conlon 2019-01-05 23:21:12 +00:00
• 143e9a9e68 More cycle accuracy changes: 1) implied instruction, pointless fetch 2) branch pointless fetch when condition is met Adrian Conlon 2019-01-05 17:23:50 +00:00
• 3b7cec9c69 Spot a couple more addCycle patterns. Adrian Conlon 2019-01-04 09:17:59 +00:00
• d2e853f101 Explicitly note implied addressing mode instructions. Adrian Conlon 2019-01-04 08:20:23 +00:00
• 556e06426e Further work on the slow migration to a cycle accurate 6502 Adrian Conlon 2019-01-03 01:04:12 +00:00
• 6c582f6349 Add a working(ish) 6502 ATX implementation. Adrian Conlon 2018-12-30 17:12:45 +00:00
• 5ade05a689 Add a bunch of undocumented 6502 instructions. Abandoned ATX implementation. Too poorly documented. Adrian Conlon 2018-12-30 12:01:23 +00:00
• 815c99710a Add enough undocumented 6502 instructions to get through "nestest". Adrian Conlon 2018-12-29 22:22:31 +00:00
• c136b306ab Use the new busRead/Write processor methods to simplify the 6502 cycle counting. Adrian Conlon 2018-12-29 22:18:01 +00:00
• adb60a6e90 Port the 6502 to the new bus architecture. Adrian Conlon 2018-12-29 19:40:02 +00:00
• f38d326ca7 Improve the flexibility of the BUS mapping/read/write architecture. Adrian Conlon 2018-12-29 19:17:36 +00:00
• 722888ae66 Correct ROM loading issue discovered while resurrecting NES support. Adrian Conlon 2018-12-29 19:06:24 +00:00
• 2a223a5acd More M6532 documentation added/adjusted Adrian Conlon 2018-12-03 23:39:22 +00:00
• fe1aaf56c7 Add work in progress of M6532 Riot chip. Nowhere near working yet, but includes lots of documentation. Adrian Conlon 2018-12-03 22:54:57 +00:00
• d6ebf00ccc Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2018-12-01 16:46:06 +00:00
• 679275e930 Correct Linux build errors. Adrian Conlon 2018-12-01 16:41:39 +00:00
• dc477cd050 Use explicit enumeration types (improves type safety) where appropriate. Adrian Conlon 2018-12-01 15:24:29 +00:00
• cf0828c595 Tidy the Z80 BIT implementation for better code resuse. No functional change Adrian Conlon 2018-12-01 13:01:33 +00:00
• 802ad6041d Update project README.md Adrian Conlon 2018-11-29 01:37:53 +00:00
• e80a5bfcd4 Whoops: the bit instruction *can* have its return value discarded... Adrian Conlon 2018-11-29 00:14:44 +00:00
• 9960ad6012 Tidy return parameter usage a little within the EightBit library. Adrian Conlon 2018-11-29 00:09:40 +00:00
• deb9a6d43c Correct more analysis problems. No functional changes. Adrian Conlon 2018-11-28 21:27:14 +00:00
• a940a29283 Unify build settings across all the EightBit libraries. Adrian Conlon 2018-11-28 21:24:51 +00:00
• a673a64c3f Lots of various changes suggested by the code analysis tools. Adrian Conlon 2018-11-27 22:36:54 +00:00
• 555423d10a Tidy the Z80 test classes, based on code analysis. Adrian Conlon 2018-11-27 22:28:09 +00:00
• 0313037d6f Tidy the 8080 test configuration class a little. Adrian Conlon 2018-11-27 22:19:15 +00:00
• 9dcaaadf80 Simplify a couple of the MC6809 test projects. Adrian Conlon 2018-11-25 19:05:14 +00:00
• e156b1ff1a Correct some more compilation warnings (across the whole EightBit project). Adrian Conlon 2018-11-25 19:02:11 +00:00
• 21a16a3c97 Ensure newly added C++ implementations are in the VisualStudio project files. Adrian Conlon 2018-11-25 11:05:41 +00:00
• 64ed8e01ec Add some more MC6809 documentation (and Searle BASIC derivative). Adrian Conlon 2018-11-25 10:45:06 +00:00
• 887b89308a Ensure virtual methods are no longer defined inline. Adrian Conlon 2018-11-25 10:43:51 +00:00
• 85bc2aab12 Reverse "UNLIKELY" conditions that also contain an else. Helps compilers that have no LIKELY/UNLIKELY macros. Adrian Conlon 2018-11-25 10:38:30 +00:00
• 000b254d2a Tidy some white space issues a little. Adrian Conlon 2018-11-24 10:56:36 +00:00
• 5ff883305e Modernise the signal handling and construction sequence of the Z80 test board. Adrian Conlon 2018-11-24 10:56:00 +00:00
• cec760767a Fix some problems in the MC6809 instruction decoder. Found by going through the switch line by line... BASIC interpreter now seems to run! Adrian Conlon 2018-11-20 08:51:17 +00:00
• c54c2a681b Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2018-11-18 22:16:16 +00:00
• 859804d179 Refactor MC6809 core to use lambdas in preference to std::bind methods. Adrian Conlon 2018-11-18 22:15:49 +00:00
• 2de467dde8 Refactor the MOS6502 core: Adrian Conlon 2018-11-18 13:52:43 +00:00
• e2e7fd0e00 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit Adrian Conlon 2018-11-16 23:50:04 +00:00
• 5530522f11 Correct a couple of small issues Adrian Conlon 2018-11-16 23:49:52 +00:00
• 68b352d1df Wire the GameBoy board like a piece of powered hardware. Adrian Conlon 2018-11-12 00:38:03 +00:00
• e326490cd9 Correct typographical mistake in MC6850 documentation. Adrian Conlon 2018-11-11 16:49:21 +00:00
• fdbb28828f Apply the concept of powered components to the "board" Adrian Conlon 2018-11-11 16:48:44 +00:00
• f29c571226 Add tests for BHI BLE on the 6809 Adrian Conlon 2018-11-10 20:48:43 +00:00
• b926f4b7f1 Simplify 6809 conditionals a little. Adrian Conlon 2018-11-10 20:31:14 +00:00
• b82ca402bf Add 6809 BGT tests. Adrian Conlon 2018-11-10 20:30:38 +00:00
• 8b12ed23e8 Add (currently disabled) disassembler to the 6809 unit test runner. Adrian Conlon 2018-11-10 20:29:27 +00:00
• e688411cb9 Refactor memory related code a little to make the hierarchy of classes a little easier to understand. Adrian Conlon 2018-11-04 16:38:57 +00:00
• 003cea0d64 Make 6502 symbols code a little more like normal C++ Adrian Conlon 2018-11-04 13:27:43 +00:00
• 95968cb000 Whoops: missed boost update for LR35902 Adrian Conlon 2018-11-04 13:26:12 +00:00
• 8ef5d97366 Update boost from 1.65 -> 1.68 Adrian Conlon 2018-11-04 12:58:01 +00:00
• 9132f2028f Add an "UnusedMemory" class to better allow "gaps" in the memory map. Adrian Conlon 2018-11-03 23:11:48 +00:00
• 984626a331 Introduce the concept of a MemoryInterface to the EightBit library. Adrian Conlon 2018-11-03 22:15:17 +00:00
• 68a785ceec Add an address masking to the memory mapping structure. Adrian Conlon 2018-11-01 23:43:29 +00:00
• 7af81018c9 Modify rotate and shift instructions to be a little more understandable (6502/6809) Adrian Conlon 2018-11-01 19:47:21 +00:00
• 4dc0becb74 Refactor the 6502 implementation to be a lot more like the MC6809. Hopefully show bugs in the latter a little more easily. Adrian Conlon 2018-10-31 23:29:13 +00:00
• b1af0710ba Tidy the Z80 instruction scheduler a little Adrian Conlon 2018-10-28 19:29:14 +00:00
• edbc2784d9 Sort out why cycle counting wasn't working as I thought it should on the MC6809 Adrian Conlon 2018-10-28 13:34:34 +00:00
• fc7b6e49ca Slightly nicer refactoring of the MEMPTR post increment saga Adrian Conlon 2018-10-28 13:33:36 +00:00
• b3faae34ae Correct a couple of problematic changes picked up by fuse test Adrian Conlon 2018-10-28 09:42:04 +00:00
• 99692ce6c7 Refactor MC6850 for C++14/17 updates Adrian Conlon 2018-10-27 21:58:23 +01:00
• 1a317c7907 C++14/17 refactoring for MC6809 Adrian Conlon 2018-10-27 21:55:54 +01:00
• 015071fcfb Tidy up GameBoy processor (LR35902) with respect to C++14/17 Adrian Conlon 2018-10-27 19:23:02 +01:00
• b9ca27feb3 Refactor the Intel 8080 core for C++17/14 Adrian Conlon 2018-10-27 18:51:30 +01:00
• fac2da9ac4 Start refactoring CPU cores to use C++17/14 features. (This commit covers the 6502 and Z80) Adrian Conlon 2018-10-27 18:41:55 +01:00
• 62f3cd717b First set of C++17/14 changes to the core library Adrian Conlon 2018-10-27 17:30:23 +01:00
• 8dbb3eafec Switch to C++17 standard in all EightBit projects. Adrian Conlon 2018-10-27 14:28:14 +01:00
• b50d21965d Addr support for the RTS/CTS and IRQ pins to the MC6850 chip emulation Adrian Conlon 2018-10-23 00:01:33 +01:00
• 4bfb264380 Simplify chip pin level matching a little. Adrian Conlon 2018-10-21 19:42:20 +01:00
• 3aa5b4bb91 Tidy the MC6850 transmit/receive sequence to be a little easier to read. Adrian Conlon 2018-10-21 18:09:23 +01:00
• 4840c238d6 Set configuration default to *not* exit early. Adrian Conlon 2018-10-21 18:07:42 +01:00
• 806251bf6f Whoops: Remove extra blank line. Adrian Conlon 2018-10-21 18:07:08 +01:00
• 54e0dcfe36 Move board termination and cycle count etc. into the configuration class. Adrian Conlon 2018-10-21 10:28:33 +01:00
• 4d09da1541 Reuse standard 6809/6850 chip/bus wiring Adrian Conlon 2018-10-20 22:54:10 +01:00
• 1b2ddd8843 Don't expose the bus via the CPU any more: if a component needs the bus, it should be prepared to hold a reference to it. Adrian Conlon 2018-10-20 20:52:41 +01:00
• 9b0cc4542f Tidy MC6809 test board/device access. Adrian Conlon 2018-10-20 16:57:32 +01:00
• dbc3e192d7 More sharing of common implementation on the MC6809. Adrian Conlon 2018-10-18 22:50:54 +01:00
• 83497b0b9e Share some implementation details on the MC6809, where possible. Somewhat closer to how I imagine the hardware is implemented... Adrian Conlon 2018-10-18 22:25:52 +01:00
• 966a07b018 Reuse pul/psh definition to simplify entire register set save/restore code. Adrian Conlon 2018-10-17 20:42:03 +01:00
• 4b2f8e3599 Correct "LE" definition to at least match the MC6809 documentation. Adrian Conlon 2018-10-17 20:39:58 +01:00
• 8c8438f819 Tidy the test code formatting a little Adrian Conlon 2018-10-14 23:39:37 +01:00
• 4e48f4a5a0 Slightly simplify half-carry evaluation. Adrian Conlon 2018-10-14 23:18:13 +01:00
• 140e87485c Whoops: Correct dodgy CMP test. That explains why I never understood why it was failing! Adrian Conlon 2018-10-14 21:26:33 +01:00
• 9d71c78338 DEC/INC don't adjust carry flags Adrian Conlon 2018-10-14 21:19:37 +01:00
• 0c07d39250 Share (hopefully!) correct overflow implementations Adrian Conlon 2018-10-14 21:19:03 +01:00
• 707a742899 Not complete, but this gets large chunks of the MC6809 addition and subtraction parts of the emulator working correctly Adrian Conlon 2018-10-14 20:40:20 +01:00
• 337e35ca1b Use the newly added CPU pokeWord method. Adrian Conlon 2018-10-14 20:39:09 +01:00
• 769c65394b The extra _getch isn't required as I fix the MC6809 CPU emulation. Adrian Conlon 2018-10-14 20:38:07 +01:00
• 12dc90c064 Add lots of tests, mainly covering addition and subtraction. Shows quite a few problems... Adrian Conlon 2018-10-14 10:06:47 +01:00
• 7e527ff093 Add Processor::pokeWord to define an endian specific 16-bit word write. Adrian Conlon 2018-10-14 10:05:43 +01:00
• 9445e7d1c4 Add test for CLRA implied Adrian Conlon 2018-10-07 11:04:22 +01:00
• 9296eaf954 Add test for BITA immediate. Adrian Conlon 2018-10-07 10:55:30 +01:00
• cf32f37fc3 Add test for ASRA inherent. And fix resulting bugs exposed! Adrian Conlon 2018-10-07 10:48:27 +01:00