Adrian Conlon
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97272d650d
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Simplify processor bus access a little by further allowing register16_t address access.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-29 13:52:25 +01:00 |
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Adrian Conlon
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dfc4c49454
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Correct 5-bit sign extension on the 6809 processor. Allows CLR 5-bit offset indexed disassembly to work correctly.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 12:57:44 +01:00 |
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Adrian Conlon
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a8cc289149
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Whoops: The "Bus" class *really* isn't allowed to know the "endianness" of the attached processor!
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 11:27:33 +01:00 |
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Adrian Conlon
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c03d8488b5
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Allow memory peek as a const operation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 13:06:05 +01:00 |
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Adrian Conlon
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8823bb6610
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Refactor the *EndianProcessor classes, such that their implementation is no longer in header files.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 22:51:56 +01:00 |
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Adrian Conlon
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1212e8d4f0
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Tidy some processor virtual specifications.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 13:35:53 +01:00 |
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Adrian Conlon
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c105ee37bf
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Have a stab at sorting out processor pin handling.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 12:09:26 +01:00 |
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Adrian Conlon
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6d4223c368
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Start moving towards reset being just another style of interrupt.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 01:34:30 +01:00 |
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Adrian Conlon
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2a3b0a5291
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Add JMP and JSR instructions to the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-21 18:10:38 +01:00 |
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Adrian Conlon
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15e1258f40
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Rearrange the 6809 code such that I can fire memory events.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-19 00:55:59 +01:00 |
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Adrian Conlon
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ab1d84703b
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Add a skeletal 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-19 00:18:08 +01:00 |
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Adrian Conlon
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51e6adc5f4
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Whoops: remove Rom.h
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-19 00:09:00 +01:00 |
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Adrian Conlon
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cc64e114a9
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Start refactoring the processor classes to allow big/little endian processors to be specified.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-17 21:53:49 +01:00 |
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Adrian Conlon
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ed76038bfa
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More memptr adjustments
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-17 13:59:59 +01:00 |
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Adrian Conlon
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1abe3ae456
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Adding a couple of const member accessors allows some event handlers to be marked const
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-12 17:08:03 +01:00 |
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Adrian Conlon
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70c70af969
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Sort out some exception and member initialisation rules.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-11 21:19:19 +01:00 |
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Adrian Conlon
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b640da1910
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Add some noexcept specifications. Just to experiment.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-07 23:06:15 +01:00 |
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Adrian Conlon
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e40240694f
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More removal of duplicated code.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-06-24 22:33:02 +01:00 |
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Adrian Conlon
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cac871cf2b
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Remove duplicated code (from const definitions) the performance benefit isn't worth the amount of duplicated code.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-06-24 20:58:20 +01:00 |
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Adrian Conlon
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67487b5b6e
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Simplify the usage of the register16_t union.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-06-16 00:55:32 +01:00 |
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Adrian Conlon
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fbf098ae00
|
Simplify memory event handlers and ROM recognition a little (bit of speed difference)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-06-10 22:00:52 +01:00 |
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Adrian Conlon
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3e854c7c49
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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>
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2018-06-10 00:40:56 +01:00 |
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Adrian Conlon
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116f9961c4
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Add a higher/lower nibble mask
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-05-25 22:36:10 +01:00 |
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Adrian Conlon
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3e87f8a191
|
Whoops: correct parity definition
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-05-02 03:31:05 +01:00 |
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Adrian Conlon
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0b2c1fa084
|
Gameboy, some random tidy ups.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-05-02 02:47:47 +01:00 |
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Adrian Conlon
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9de0f597f6
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Remove some "tricksy" code from the Z80 emulator chain.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-04-14 09:39:06 +01:00 |
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Adrian Conlon
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d818095815
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MEMPTR is really only a concept of Intel style processors.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-03-18 22:40:23 +00:00 |
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Adrian Conlon
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45dc274167
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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>
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2018-03-10 01:53:57 +00:00 |
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Adrian Conlon
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adf506a41e
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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>
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2018-02-25 19:48:01 +00:00 |
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Adrian Conlon
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7f501ff29c
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Temporarily perhaps, reintroduce post-read and pre-write bus events (for the NES)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-02-07 23:00:38 +00:00 |
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Adrian Conlon
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9524cf4c6b
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Adjust memory loaders, to allow easier usage (default arguments)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-01-25 22:24:08 +00:00 |
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Adrian Conlon
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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 |
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Adrian Conlon
|
29edc46966
|
Simplify some MEMPTR usage in Intel processors.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-01-10 23:08:14 +00:00 |
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Adrian Conlon
|
108f66632e
|
Performance: watch out for unnecessary virtualised methods.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-01-06 17:13:02 +00:00 |
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Adrian Conlon
|
d4782a66db
|
Some small changes for NES support: hopefully not broken anything!
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-26 22:46:16 +00:00 |
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Adrian Conlon
|
637c0c68fa
|
Correct a couple of merge issues.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-12 23:12:45 +00:00 |
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Adrian Conlon
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c8dd6e7267
|
Merge branch 'master' of https://github.com/MoleskiCoder/EightBit
# Conflicts:
# inc/EightBitCompilerDefinitions.h
|
2017-12-12 23:08:34 +00:00 |
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Adrian Conlon
|
c5b7b06e59
|
Whoops: correct macro expansion.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-12 23:05:54 +00:00 |
|
Adrian Conlon
|
697bfb636d
|
A more succinct definition of the LR35902 interrupt mechanism.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-12 22:29:37 +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 |
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Adrian Conlon
|
4f5e231dc4
|
Merge branch 'master' of https://github.com/MoleskiCoder/EightBit
|
2017-12-02 23:55:44 +00:00 |
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Adrian Conlon
|
7e3957d4db
|
Rewrite i8080 interrupts to be more closely related to the hardware.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-02 23:50:59 +00:00 |
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Adrian Conlon
|
def14493cb
|
Allow fallback for where intrinsics aren't available.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-12-02 19:01:07 +00:00 |
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Adrian Conlon
|
d70f6b375b
|
Ensure each header file has a newline on its own at the end of each file.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-11-30 23:19:17 +00:00 |
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Adrian Conlon
|
12385dcc6f
|
More clang warnings corrected.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-11-30 23:15:40 +00:00 |
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Adrian Conlon
|
4b2d84dba3
|
Whoops: missed clang warning.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-11-30 16:55:10 +00:00 |
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Adrian Conlon
|
a0f7d584b6
|
Correct a few warnings reported by "clang"
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-11-30 14:37:18 +00:00 |
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Adrian Conlon
|
f50c83ad36
|
Whoops: missed GCC problem.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2017-11-20 20:54:17 +00:00 |
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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 |
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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 |
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