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Author SHA1 Message Date
Adrian Conlon
f8757b3014 MC6809: Correct a couple of disassembler byte dumps. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 17:16:56 +01:00
Adrian Conlon
93122aaf1d MC6850: Tie chip stepping to external clock. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 15:21:40 +01:00
Adrian Conlon
662c457dd5 Make the MC6809 disassembler hex output lower case, for compatibility with unmanaged code. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 15:20:52 +01:00
Adrian Conlon
99a4cfaa88 Correct small warning in the EightBit library. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 15:19:55 +01:00
Adrian Conlon
48c2ffa99f Correct the MC6809 test code to properly initialise the MC6850 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 15:19:18 +01:00
Adrian Conlon
d2893e73ac MC6809: Fix flag updates during interrupt conditions 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 12:45:53 +01:00
Adrian Conlon
fc9263fb3a M6502: Avoid allocating "Tuples" when processing crossed page boundary conditions. (~20% speedup) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-04 12:44:53 +01:00
Adrian Conlon
87be068e5a Whoops: The configuration debug flag must be able to be modified. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-01 22:50:06 +01:00
Adrian Conlon
956a4a1504 Whoops: Disassembler output condition was *exactly* reversed. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-01 22:49:28 +01:00
Adrian Conlon
a81b5173d8 Whoops: correct state output problem when Register16 objects are used. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-01 22:48:47 +01:00
Adrian Conlon
81cfadfe32 Correct byte array load issue: Ensure maximum number of bytes to read is set correctly. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-01 22:47:40 +01:00
Adrian Conlon
835703080d Correct Intel hex file loader issue: Incorrect use of "List<>" 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-01 22:46:37 +01:00
Adrian Conlon
23ba6d457e Add emulation of Grant Searle MC6809 SBC as a test container (untested!) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-04-28 21:00:30 +01:00
Adrian Conlon
32731dc706 Add MC6809 disassembler (untested!) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-04-28 20:59:31 +01:00
Adrian Conlon
ea93418289 Correct small bug in 16-bit register exchange. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-24 16:17:19 +01:00
Adrian Conlon
bc06975796 Tidy up some enumeration names in MC6850 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-24 16:16:47 +01:00
Adrian Conlon
15551adb68 Correct a bunch of MC6809/MC6850 style issues. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-04-24 00:57:53 +01:00
Adrian Conlon
1d976e811d Introduce a little consistency with regards to pin naming and usage. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-23 00:58:33 +01:00
Adrian Conlon
77a3171037 Add an MC6850 ACIA implementation (not tested, direct port of the C++ code) 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-23 00:47:27 +01:00
Adrian Conlon
6e781ced44 Some minor MC6809 tidying up 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 19:54:26 +01:00
Adrian Conlon
2a4a067fe4 Add an (untested) implementation of an Intel hex file parser to the EightBit project. Ported directly from the C++ implementation. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 16:53:55 +01:00
Adrian Conlon
0d73b588c3 Whoops: Forgot to commit the addition of the MC6809 unit test project to the EightBitNet solution. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 16:52:48 +01:00
Adrian Conlon
53a203b4a1 Correct a layout issue in the MC6809 implementation. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 16:51:53 +01:00
Adrian Conlon
4977df7330 Correct a couple of missed "readonly" specifications in the MC6809 unit tests. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 16:51:08 +01:00
Adrian Conlon
0ab5da10ef add unit tests (not complete) for 6809 processor. Fix matters arising. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-21 04:47:36 +01:00
Adrian Conlon
294c71c228 Get the MC6809 processor compiling. Still untested. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-10 23:15:26 +01:00
Adrian Conlon
6b33d2b5a5 Add a initial port of the MC6809 processor to the .Net collection 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2019-04-10 19:51:39 +01:00
Adrian Conlon
8b67a827dd Simplify the Intel 8080 disassembler a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-17 21:07:56 +00:00
Adrian Conlon
4a0d466171 Merge branch 'master' of https://github.com/MoleskiCoder/EightBitNet 2019-03-10 11:34:40 +00:00
Adrian Conlon
00fe5eb0b2 Overloaded MemoryMapping constructor, to make life a little easier... 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-10 11:34:29 +00:00
Adrian Conlon
5b9a92c76c Correct a couple of small style issues. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-07 01:21:23 +00:00
Adrian Conlon
e80963260d Try to avoid copying around Register16 references, if possible. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-07 01:21:00 +00:00
Adrian Conlon
56f46a8236 Speed up Z80 block operations by using values rather than reference objects, if possible. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-07 00:28:39 +00:00
Adrian Conlon
2652463106 Remove default debugging from the Intel8080 test. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-03 10:45:19 +00:00
Adrian Conlon
3d2b861b56 Tidy the processor object a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-03 10:44:52 +00:00
Adrian Conlon
22cb8b142b Tidy the path to nuget packages, such that they can be used as git submodules. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-03 10:35:18 +00:00
Adrian Conlon
4799e097de Update stylecop (plus add stylecop packages to the Intel 8080 set). 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-02 08:59:20 +00:00
Adrian Conlon
9a1d5cc762 First commit of the Intel8080 processor core. Passes diagnostics. Runs at ~50% speed of unmanaged code. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-28 00:06:35 +00:00
Adrian Conlon
12969dbef6 Use intermediate values for HL2, if possible. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-23 10:38:29 +00:00
Adrian Conlon
03caba99dc Follow most of the guideline suggestions from VS2019 preview. Pretty good suggestions! 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-22 22:33:51 +00:00
Adrian Conlon
28b7a88f0f Use the correct virtual methods: BusRead and BusWrite to control bus access for Z80 a la M6502 implementation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-22 19:59:42 +00:00
Adrian Conlon
726c3fe4cc More work on minimising the effect of creating garbage collected objects. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 22:52:46 +00:00
Adrian Conlon
968b1c6545 Correct Z80 disassembler format issue. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 22:51:42 +00:00
Adrian Conlon
27e1c5c9f8 Make Register16 a class, rather than struct. Tricky, but a bit faster than before. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 19:58:49 +00:00
Adrian Conlon
b7fbb80018 Add an extra couple of blank lines to separate the information messages in the test harness. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 01:11:07 +00:00
Adrian Conlon
c0aa7c5ff5 Correct a few small mistakes in the Z80 emulation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 01:10:17 +00:00
Adrian Conlon
c7feb58815 Correct a Z80 compare mistake: the result of the implied subtraction shouldn't be applied to the flags register! 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 00:02:31 +00:00
Adrian Conlon
900ac02869 Tidy up a stylecop suggestion. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-21 00:01:36 +00:00
Adrian Conlon
42d7095dab Make the Z80 disassembly more compatible with the unmanaged disassembler. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-20 23:52:59 +00:00
Adrian Conlon
53cdc614a2 Mask the Z80 refresh register correctly 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-02-20 23:51:50 +00:00