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238ee30b3c
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172 Commits

Author SHA1 Message Date
Adrian Conlon
238ee30b3c Correct a couple of small Z80 power on issues. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-02 17:30:03 +00:00
Adrian Conlon
b95614c65d Correct a couple of small issues in the Z80 disassembler. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-02 17:29:21 +00:00
Adrian Conlon
411fc5fe6a Update to latest version of boost (1.71.0) 2019-10-12 23:15:28 +01:00
Adrian Conlon
1ba238bfc7 Add support for RD and WR lines to the Z80 emulator. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-15 01:35:57 +01:00
Adrian Conlon
6d6c95f695 Fix up INT and NMI pin (M1 and IORQ) response a little (still working on ZX81 emulator!) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-14 23:38:47 +01:00
Adrian Conlon
4be4a0603e Refactor the Z80 implementation to: 
a) Simplify M1 handling
b) Reuse subtract/add implementations
c) Simplify conditional code blocks.

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-14 15:04:46 +01:00
Adrian Conlon
74f70af758 Correct more Z80 disassembler problems (the ZX81 seems to use every instruction available!) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-08 21:27:35 +01:00
Adrian Conlon
3e12ba6200 Sigh: Another Z80 interrupt related bug fix. Avoid a loop when an INT occurs, but interrupts are disabled. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-08 16:28:19 +01:00
Adrian Conlon
0e8813cdf3 Show more state information for debugging output. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-07 23:57:17 +01:00
Adrian Conlon
254cfbe342 Tidied up pin management to be synchronised with the .Net code. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-09-06 23:55:57 +01:00
Adrian Conlon
e1f22f6903 Make it slightly easier to call individual opcodes from external control. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-31 08:45:04 +01:00
Adrian Conlon
4f47f3fc4d Simplifying the Z80 halt implementation looks better. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-29 08:51:15 +01:00
Adrian Conlon
2efd53d33a Correct problematic continuation from "halt" on Z80. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-28 23:06:56 +01:00
Adrian Conlon
4b0cf426b9 Add a couple of missing instructions to the disassembler (used by the ZX Spectrum ROM) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-18 17:40:18 +01:00
Adrian Conlon
6940a54355 Update all EightBit projects to VS2019 (Latest SDK, C++17) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-17 11:04:29 +01:00
Adrian Conlon
5ed01b61d1 Backport fixes from .Net EightBit library to C++ 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-16 21:56:48 +01:00
Adrian Conlon
5e9014997a Upgraded to VS2019, default SDK. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-08-06 13:16:38 +01:00
Adrian Conlon
def1c58e9d Tidy project settings across the EightBit library to be more consistent. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-07-06 22:45:16 +01:00
Adrian Conlon
1a0d3ad77a Go through all projects for configuration consistency. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-05-05 10:25:44 +01:00
Adrian Conlon
934a1f7025 Use the virtual methods, busRead and busWrite for all processor bus actions. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-03-02 21:58:34 +00:00
Adrian Conlon
f0376fa81e Use macros to define our device pins. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-01-14 23:17:54 +00:00
Adrian Conlon
92d23d82d6 Start big refactor of device/CPU pin usage (to allow pin events throughout). 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-01-14 02:10:17 +00:00
Adrian Conlon
68030610d8 Move to an event driven clock tick event for all CPUs 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-01-09 23:24:33 +00:00
Adrian Conlon
a13ad5042a Correct constructions of register16_t: the structure is "#ifdef"ed for different endian arrangements. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-01-06 11:27:43 +00:00
Adrian Conlon
f38d326ca7 Improve the flexibility of the BUS mapping/read/write architecture. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-12-29 19:17:36 +00:00
Adrian Conlon
d6ebf00ccc Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2018-12-01 16:46:06 +00:00
Adrian Conlon
679275e930 Correct Linux build errors. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2018-12-01 16:41:39 +00:00
Adrian Conlon
dc477cd050 Use explicit enumeration types (improves type safety) where appropriate. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-12-01 15:24:29 +00:00
Adrian Conlon
cf0828c595 Tidy the Z80 BIT implementation for better code resuse. No functional change 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-12-01 13:01:33 +00:00
Adrian Conlon
e80a5bfcd4 Whoops: the bit instruction *can* have its return value discarded... 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-29 00:14:44 +00:00
Adrian Conlon
9960ad6012 Tidy return parameter usage a little within the EightBit library. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-29 00:09:40 +00:00
Adrian Conlon
deb9a6d43c Correct more analysis problems. No functional changes. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-28 21:27:14 +00:00
Adrian Conlon
a940a29283 Unify build settings across all the EightBit libraries. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-28 21:24:51 +00:00
Adrian Conlon
a673a64c3f Lots of various changes suggested by the code analysis tools. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-27 22:36:54 +00:00
Adrian Conlon
555423d10a Tidy the Z80 test classes, based on code analysis. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-27 22:28:09 +00:00
Adrian Conlon
e156b1ff1a Correct some more compilation warnings (across the whole EightBit project). 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-25 19:02:11 +00:00
Adrian Conlon
85bc2aab12 Reverse "UNLIKELY" conditions that also contain an else. Helps compilers that have no LIKELY/UNLIKELY macros. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-25 10:38:30 +00:00
Adrian Conlon
5ff883305e Modernise the signal handling and construction sequence of the Z80 test board. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-24 10:56:00 +00:00
Adrian Conlon
fdbb28828f Apply the concept of powered components to the "board" 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-11-11 16:48:44 +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
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
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
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
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
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
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
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
8d3551e681 Refactor bit set/get routines from processor class to lower level chip class. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-09-29 14:08:44 +01:00
Adrian Conlon
7adefd380a Sort a bunch of missing argument const specifications. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-09-21 00:16:00 +01:00