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6,341 Commits 8 Branches 121 Tags 496 MiB
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40 Commits

Author SHA1 Message Date
Thomas Harte
11d936331d Attempts to preserve scheduled_program_counter_. 2020-05-13 23:58:04 -04:00
Thomas Harte
7c9d9ee048 Adds basic Z80 state. 2020-05-13 20:15:22 -04:00
Thomas Harte
25996ce180 Further doubles down on construction syntax for type conversions. 2020-05-09 23:00:39 -04:00
Thomas Harte
b971e2a42c Adds get_is_resetting to the Z80, eliminating the CPC's custom version. 2020-02-29 19:58:25 -05:00
Thomas Harte
01faffd5bf Corrects memptr behaviour of OTIR/OTDR and INIR/INDR. 
This seemingly perfects memptr.
 2020-02-27 20:55:43 -05:00
Thomas Harte
26de5be07c Corrects memptr behaviour of LDIR/LDDR and CPIR/CPDR. 2020-02-27 20:44:53 -05:00
Thomas Harte
87474d5916 Corrects memptr behaviour of OUT (C), 0. 2020-02-27 20:38:27 -05:00
Thomas Harte
06163165d9 Corrects memptr effect of LD rr, (nn). 2020-02-26 22:22:54 -05:00
Thomas Harte
ec82c075be Fixes memptr for IN C, (C). 2020-02-26 22:19:37 -05:00
Thomas Harte
3b0df172a7 Corrects memptr behaviour of JP nn. 2020-02-26 22:02:15 -05:00
Thomas Harte
7058dbc3cc Corrects memptr for LD HL, (nn). 2020-02-26 21:54:49 -05:00
Thomas Harte
b64de89d2d Corrects JR memptrs. 2020-02-26 21:47:34 -05:00
Thomas Harte
8878396339 Corrects DJNZ memptr behaviour. 2020-02-26 21:42:31 -05:00
Thomas Harte
3097c4ccae Improves MEMPTR testing and some results. 2020-02-24 23:32:18 -05:00
Thomas Harte
7959d243f6 Adds single-stepping. Of a kind. 2020-02-24 23:31:42 -05:00
Thomas Harte
3f3229851b Implements MEMPTR for IN. 2020-02-23 00:32:33 -05:00
Thomas Harte
1c154131f9 Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate. 2019-10-29 22:36:29 -04:00
Thomas Harte
4aeb9a7c56 Genericises RegisterPair. 2019-03-09 21:16:11 -05:00
Thomas Harte
0b14850467 Corrects some comments. 2018-06-24 23:02:36 -04:00
Thomas Harte
9a91ae38c1 Differentiates reasons for a read to be four cycles. 
Specifically, puts the enforced wait either before or after checking the wait line. More research may be required; it feels more likely to me that a forced post wait should complete the read then wait, but would that still count as a single machine cycle?
 2018-06-20 21:34:21 -04:00
Thomas Harte
ad9b0cd4e3 Eliminates all endashes. 2018-05-13 15:43:03 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
45be1c19df Resolves undefined behaviour of a signed shift left. 2018-03-22 21:59:39 -04:00
Thomas Harte
0e73ba4b3e Introduces proper 5/3 SCF/CCF behaviour for the Z80. 
While also `const`ing a bunch of things.
 2018-03-09 09:47:00 -05:00
Thomas Harte
f0f9d5a6af Corrects memptr leakage via BIT, and ld (de/bc/nn), A behaviour. 2018-03-08 20:30:22 -05:00
Thomas Harte
74dfe56d2b
Expands documentation of NMI setting. 
Given that it was previously incorrect, explains logic behind request_status_ and last_request_status_ setting. Also takes the opportunity to ensure that NMI is 'sampled' at the same time as IRQ; whether the next thing should be the NMI routine now occurs one cycle before the end of any instruction. That's an assumption for now. Testing to come.
 2018-03-02 11:10:02 -05:00
Thomas Harte
b02e4fbbf6 Corrects NMI receipt to be genuinely edge triggered. 
Previously a caller that signalled NMI set multiple times would trigger multiple NMIs.
 2018-03-01 22:04:56 -05:00
Thomas Harte
23c47e21de Proceeds the ColecoVision to booting. 2018-02-24 18:14:38 -05:00
Thomas Harte
7dfbe4bb93 Ensures proper Boolean startup values for IFF1 and IFF2. 2017-11-29 20:32:55 -05:00
Thomas Harte
5aef81cf24 Commutes cross-platform #pragma marks to //MARK:s. 2017-11-12 15:59:11 -05:00
Thomas Harte
2e15fab651 Doubles down on <cX> over <X.h> for C includes, and usage of the namespace for those types and functions. 2017-11-11 15:28:40 -05:00
Thomas Harte
cb0f58ab7a Corrects order-of-initialisation errors in the CPC (again), TextureBuilder, TextureTarget, Z80, MFM parser and binary tape player. 2017-11-10 22:57:03 -05:00
Thomas Harte
c0055a5a5f Further builds up SConstruct, correcting many missed imports and a couple of improper uses of C99 in C++ code. 2017-11-09 22:04:49 -05:00
Thomas Harte
6e1d69581c Eliminates a variety of end-of-line spaces. 2017-11-07 22:54:22 -05:00
Thomas Harte
ad9df4bb90 Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts. 2017-10-21 22:30:15 -04:00
Thomas Harte
e983854e71 Converts all uint8_t and uint16_t casts to the functional style. 2017-10-21 21:50:53 -04:00
Thomas Harte
45499050b6 Separates Z80Base.cpp into its component classes. 2017-09-04 11:04:01 -04:00
Thomas Harte
a1e200cc65 Further strips back the amount exposed in Z80-related headers. 
Almost all opcode table generation macros and code now resides neatly in the world of .CPP.
 2017-09-01 22:19:16 -04:00
Thomas Harte
e6ac939ae0 Reintroduces missing noexcept specifier. 2017-09-01 20:51:31 -04:00
Thomas Harte
b034d4e6f8 Refactors the Z80 to separate out interface and implementation. 
Following the pattern just established by the 6502, puts all implementation specifics beyond the visibility of a human reading Z80.hpp and in subfolders so as to promote the idea that they shouldn't go out of their way.
 2017-09-01 20:50:24 -04:00