2670 Commits

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Author	SHA1	Message	Date
Thomas Harte	c2253c1e0f	Fixed multiplier: the dot clock I've used to instantiate the CRT is the pixel clock, not the character clock.	2017-07-31 22:17:46 -04:00
Thomas Harte	5c68b6cc21	Fixed display enable reset when there's no adjustment area. A practical lesson in failure to factor.	2017-07-31 22:16:08 -04:00
Thomas Harte	ffaa627820	Fixed frame restart when there is no adjustment period.	2017-07-31 22:13:45 -04:00
Thomas Harte	f742fd5d4a	Made basic attempt to get something on screen: white where the display is enabled, black for the border.	2017-07-31 22:13:20 -04:00
Thomas Harte	69b99fe127	Transferred ownership of the CRT to the CRTC bus handler, to give it easy access.	2017-07-31 22:04:52 -04:00
Thomas Harte	5a396f6787	Added an explicit cast.	2017-07-31 22:04:31 -04:00
Thomas Harte	cb0dc7b434	I'm sure it's not going to be this easy, but this is a genuine attempt at full horizontal and vertical timing.	2017-07-31 22:01:54 -04:00
Thomas Harte	e28829bd1b	Corrected CRTC timing, gave it someone to talk to and a means with which to talk.	2017-07-31 20:14:46 -04:00
Thomas Harte	68ceeab610	Created a 6845 class and started pushing data at it and clocking it. It doesn't currently have the concept of a bus but will do, hence the in-header implementation.	2017-07-31 19:56:59 -04:00
Thomas Harte	68dca9d047	Made a first attempt at ROM paging, with pretty much the same scheme that'll be needed for 128kb support.	2017-07-31 19:37:28 -04:00
Thomas Harte	d88ca151f4	Added a first attempt at output port decoding. Just logging for now.	2017-07-31 19:25:10 -04:00
Thomas Harte	3c90218c3d	With a very basic stab at something a bit like the memory map (sans paging), execution begins.	2017-07-31 19:15:43 -04:00
Thomas Harte	afd409c883	Ensured that ROM images are loaded and passed to the Amstrad CPC.	2017-07-31 18:44:49 -04:00
Thomas Harte	26b6c03a2a	Re-enabled the address sanitiser as a development tool.	2017-07-31 07:30:07 -04:00
Thomas Harte	9c04d851e4	Added the basics necessary to get the CPU ticking over, at a nominal 4Mhz but with the wait states that I currently believe to be accurate.	2017-07-31 07:29:50 -04:00
Thomas Harte	1d6fe11906	Added an instance of Outputs::CRT::CRT. So progress is now: select CDT, up comes a blank window.	2017-07-31 07:16:51 -04:00
Thomas Harte	c0f1313830	Performed sufficient wiring to get to the point where attempting to load a CDT creates an instance of the Amstrad CPC and then fails only because the thing vends a nullptr CRT.	2017-07-30 22:05:29 -04:00
Thomas Harte	fb51fadf00	Merge branch 'master' into CPC	2017-07-30 21:29:31 -04:00
Thomas Harte	55fd9122d0	Slightly relaxed vertical sync testing.	2017-07-30 21:19:42 -04:00
Thomas Harte	5b5720fac0	Added to the static analyser the most basic through-path for Amstrad CPC content.	2017-07-30 21:15:20 -04:00
Thomas Harte	d25d7d7d40	Added the Amstrad CPC as a named target and declared support for its CDT file format.	2017-07-29 21:56:33 -04:00
Thomas Harte	ba4f2d8917	Merge branch 'master' into VerticalSync	2017-07-29 21:45:22 -04:00
Thomas Harte	a2aec39633	Merge pull request #167 from TomHarte/VerticalSync ... Adjusts vertical sync detection	2017-07-29 21:44:47 -04:00
Thomas Harte	0bf4fdc9af	Simplified slightly.	2017-07-29 21:37:59 -04:00
Thomas Harte	ed8c73eb14	Ensured lengthy constant sync can't appear to be two sync pulses, regardless of other interruption.	2017-07-29 18:25:04 -04:00
Thomas Harte	3528a7f78b	Made an attempt at triggering vertical sync the expected number of time after it begins, regardless of total length.	2017-07-29 17:33:52 -04:00
Thomas Harte	54bcc40192	With an eye towards being more accurate as to vertical sync recognition: acknowledged that the detection period varies between PAL and NTSC.	2017-07-29 14:53:53 -04:00
Thomas Harte	4b5e9ffb83	Ensured is_at_end_ is initially cleared by default.	2017-07-27 22:22:43 -04:00
Thomas Harte	a7f5f035a6	Merge pull request #166 from TomHarte/NoRefs ... Standardises on `const [Half]Cycles`	2017-07-27 22:07:05 -04:00
Thomas Harte	4abd62e62b	Standardises on const [Half]Cycles as the thing called and returned, rather than const [Half]Cycles & as it's explicitly defined to be only one int in size, so using a reference is overly weighty.	2017-07-27 22:05:29 -04:00
Thomas Harte	1fb158b297	Merge pull request #165 from TomHarte/HalfCycleTyper ... Brings `Typer` into the new `run_for` orthodoxy	2017-07-27 21:56:02 -04:00
Thomas Harte	968d2bb8ba	Brought Typer into the new run_for orthodoxy, making it easier to clock consistently regardless of unit. Which necessitated adding a negative operator for WrappedInts.	2017-07-27 21:53:45 -04:00
Thomas Harte	92a3dfe44a	Merge pull request #164 from TomHarte/NoInt ... Revokes the operator bool() on WrappedInt and simplifies/generalises HalfClockReceiver	2017-07-27 21:41:04 -04:00
Thomas Harte	9ef232157b	Revoked the operator bool() on WrappedInt as providing an indirect means for implicit but incorrect assignment to unwrapped ints. Got explicit about run_for intention and simplified HalfClockReceiver slightly by building a lossy and a flushing conversion to Cycles into HalfCycles. Adapted the all-RAM Z80 properly to return HalfCycles.	2017-07-27 21:38:50 -04:00
Thomas Harte	b9f4f7a530	Merge pull request #163 from TomHarte/WaitSampling ... Adjusts the timing of the Z80's wait line sampling to be on a half clock and better regularises 'action' partial bus cycles	2017-07-27 21:19:29 -04:00
Thomas Harte	761afad118	Corrected timestamp return, and its testing by the 6502 timing tests.	2017-07-27 21:19:16 -04:00
Thomas Harte	8848ebbd4f	Formalised set_interrupt_line's optional parameter as being a count of HalfCycles; corrected PartialMachineCycle.is_wait and effected the proper timing for counter reset on a ZX81.	2017-07-27 21:10:14 -04:00
Thomas Harte	37950143fc	Attempted to nudge wait timing onto half-cycle boundaries, which expands the number of partial machine cycles the Z80 can post but pleasingly also regularises them. Switched the AllRAMProcessor to reporting half cycles by default and corrected all Z80 tests.	2017-07-27 20:17:13 -04:00
Thomas Harte	25fd95044c	Merge pull request #154 from TomHarte/Memptr ... Introduces a subset of necessary test cases for the Z80 memptr register, and corrects implementation to match	2017-07-27 08:10:22 -04:00
Thomas Harte	1da24d10fd	Corrected a couple of build errors.	2017-07-27 08:05:14 -04:00
Thomas Harte	60e374dca3	Merge branch 'master' into Memptr	2017-07-27 07:54:25 -04:00
Thomas Harte	7a65f91575	Merge pull request #162 from TomHarte/ClockReceiverHolder ... Completes revocation of ClockReceiver	2017-07-27 07:43:12 -04:00
Thomas Harte	6f8b558724	Revoked dead #include.	2017-07-27 07:41:59 -04:00
Thomas Harte	1a88b62bf7	Merge branch 'master' into ClockReceiverHolder	2017-07-27 07:41:20 -04:00
Thomas Harte	8361756dc4	Switched definitively to the works-for-now approach of requiring an explicit opt-in where somebody wants to clock a whole-cycle receiver from a half-cycle clock.	2017-07-27 07:40:02 -04:00
Thomas Harte	273299028e	Merge pull request #161 from TomHarte/Z80WaitSampling ... Doubles the timing precision used by the Z80 up to HalfCycles	2017-07-27 07:39:36 -04:00
Thomas Harte	847e49ccdf	Corrected timestamp reporting by the all-RAM Z80.	2017-07-26 19:47:39 -04:00
Thomas Harte	81a3899381	Adjusted the Z80 formally to communicate in terms of half cycles rather than whole.	2017-07-26 19:42:00 -04:00
Thomas Harte	9257a3f6d7	Added test for 16-bit arithmetic, and fixed implementation.	2017-07-26 19:04:52 -04:00
Thomas Harte	728143247d	Added a test for RLD and RRD. Which already passes.	2017-07-26 18:56:35 -04:00