Commit Graph

612 Commits

Author SHA1 Message Date
Adrian Conlon
5530522f11 Correct a couple of small issues
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-16 23:49:52 +00:00
Adrian Conlon
e688411cb9 Refactor memory related code a little to make the hierarchy of classes a little easier to understand.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-04 16:38:57 +00:00
Adrian Conlon
003cea0d64 Make 6502 symbols code a little more like normal C++
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-04 13:27:43 +00:00
Adrian Conlon
95968cb000 Whoops: missed boost update for LR35902
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-04 13:26:12 +00:00
Adrian Conlon
8ef5d97366 Update boost from 1.65 -> 1.68
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-04 12:58:01 +00:00
Adrian Conlon
9132f2028f Add an "UnusedMemory" class to better allow "gaps" in the memory map.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-03 23:11:48 +00:00
Adrian Conlon
984626a331 Introduce the concept of a MemoryInterface to the EightBit library.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-03 22:15:17 +00:00
Adrian Conlon
68a785ceec Add an address masking to the memory mapping structure.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-01 23:43:29 +00:00
Adrian Conlon
7af81018c9 Modify rotate and shift instructions to be a little more understandable (6502/6809)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-11-01 19:47:21 +00:00
Adrian Conlon
4dc0becb74 Refactor the 6502 implementation to be a lot more like the MC6809. Hopefully show bugs in the latter a little more easily.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-31 23:29:13 +00:00
Adrian Conlon
b1af0710ba Tidy the Z80 instruction scheduler a little
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-28 19:29:14 +00:00
Adrian Conlon
edbc2784d9 Sort out why cycle counting wasn't working as I thought it should on the MC6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-28 13:34:34 +00:00
Adrian Conlon
fc7b6e49ca Slightly nicer refactoring of the MEMPTR post increment saga
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-28 13:33:36 +00:00
Adrian Conlon
b3faae34ae Correct a couple of problematic changes picked up by fuse test
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-28 09:42:04 +00:00
Adrian Conlon
99692ce6c7 Refactor MC6850 for C++14/17 updates
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 21:58:23 +01:00
Adrian Conlon
1a317c7907 C++14/17 refactoring for MC6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 21:55:54 +01:00
Adrian Conlon
015071fcfb Tidy up GameBoy processor (LR35902) with respect to C++14/17
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 19:23:02 +01:00
Adrian Conlon
b9ca27feb3 Refactor the Intel 8080 core for C++17/14
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 18:51:30 +01:00
Adrian Conlon
fac2da9ac4 Start refactoring CPU cores to use C++17/14 features. (This commit covers the 6502 and Z80)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 18:41:55 +01:00
Adrian Conlon
62f3cd717b First set of C++17/14 changes to the core library
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 17:30:23 +01:00
Adrian Conlon
8dbb3eafec Switch to C++17 standard in all EightBit projects.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-27 14:28:14 +01:00
Adrian Conlon
b50d21965d Addr support for the RTS/CTS and IRQ pins to the MC6850 chip emulation
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-23 00:01:33 +01:00
Adrian Conlon
4bfb264380 Simplify chip pin level matching a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-21 19:42:20 +01:00
Adrian Conlon
3aa5b4bb91 Tidy the MC6850 transmit/receive sequence to be a little easier to read.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-21 18:09:23 +01:00
Adrian Conlon
4840c238d6 Set configuration default to *not* exit early.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-21 18:07:42 +01:00
Adrian Conlon
806251bf6f Whoops: Remove extra blank line.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-21 18:07:08 +01:00
Adrian Conlon
54e0dcfe36 Move board termination and cycle count etc. into the configuration class.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-21 10:28:33 +01:00
Adrian Conlon
4d09da1541 Reuse standard 6809/6850 chip/bus wiring
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-20 22:54:10 +01:00
Adrian Conlon
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.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-20 20:52:41 +01:00
Adrian Conlon
9b0cc4542f Tidy MC6809 test board/device access.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-20 16:57:32 +01:00
Adrian Conlon
dbc3e192d7 More sharing of common implementation on the MC6809.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-18 22:50:54 +01:00
Adrian Conlon
83497b0b9e Share some implementation details on the MC6809, where possible. Somewhat closer to how I imagine the hardware is implemented...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-18 22:25:52 +01:00
Adrian Conlon
966a07b018 Reuse pul/psh definition to simplify entire register set save/restore code.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-17 20:42:03 +01:00
Adrian Conlon
4b2f8e3599 Correct "LE" definition to at least match the MC6809 documentation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-17 20:39:58 +01:00
Adrian Conlon
8c8438f819 Tidy the test code formatting a little
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 23:39:37 +01:00
Adrian Conlon
4e48f4a5a0 Slightly simplify half-carry evaluation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 23:18:13 +01:00
Adrian Conlon
140e87485c Whoops: Correct dodgy CMP test. That explains why I never understood why it was failing!
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 21:26:33 +01:00
Adrian Conlon
9d71c78338 DEC/INC don't adjust carry flags
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 21:19:37 +01:00
Adrian Conlon
0c07d39250 Share (hopefully!) correct overflow implementations
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 21:19:03 +01:00
Adrian Conlon
707a742899 Not complete, but this gets large chunks of the MC6809 addition and subtraction parts of the emulator working correctly
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 20:40:20 +01:00
Adrian Conlon
337e35ca1b Use the newly added CPU pokeWord method.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 20:39:09 +01:00
Adrian Conlon
769c65394b The extra _getch isn't required as I fix the MC6809 CPU emulation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 20:38:07 +01:00
Adrian Conlon
12dc90c064 Add lots of tests, mainly covering addition and subtraction. Shows quite a few problems...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 10:06:47 +01:00
Adrian Conlon
7e527ff093 Add Processor::pokeWord to define an endian specific 16-bit word write.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-14 10:05:43 +01:00
Adrian Conlon
9445e7d1c4 Add test for CLRA implied
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 11:04:22 +01:00
Adrian Conlon
9296eaf954 Add test for BITA immediate.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 10:55:30 +01:00
Adrian Conlon
cf32f37fc3 Add test for ASRA inherent. And fix resulting bugs exposed!
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 10:48:27 +01:00
Adrian Conlon
f2b9ab0814 Add test for ASLA inherent.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 10:32:26 +01:00
Adrian Conlon
7719c8e875 Add test for ANDA immediate
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 10:08:12 +01:00
Adrian Conlon
1f4a84b803 Add test for ADDA immediate. Seems to be working.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-10-07 09:47:10 +01:00