41 Commits

Author	SHA1	Message	Date
Thomas Harte	731dc350b4	Adds sometime real-time clocking for DMA.	2019-10-30 22:59:32 -04:00
Thomas Harte	635e18a50d	Ensures the MFP requests and receives real-time clocking when needed.	2019-10-30 22:42:06 -04:00
Thomas Harte	1c154131f9	Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate.	2019-10-29 22:36:29 -04:00
Thomas Harte	1135576a3a	Comments in slightly more detail.	2019-10-28 22:12:56 -04:00
Thomas Harte	1d790ec2a9	Adds the option for a clock conversion to JustInTimeActor and slows the MFP's clock rate.	2019-10-28 21:35:10 -04:00
Thomas Harte	95d3b6e79f	Adds a through route for the FDC interrupt line.	2019-10-28 21:13:21 -04:00
Thomas Harte	d44734d105	Attempts a fuller setting of GPIP inputs.	2019-10-27 22:39:21 -04:00
Thomas Harte	0cb19421e8	Adds prefix to mouse position response.	2019-10-27 21:46:03 -04:00
Thomas Harte	ac39fd0235	Starts work on the DMA controller.	2019-10-26 21:33:57 -04:00
Thomas Harte	ecc0cea5a1	Added a potential branch for the newer TOS memory map.	2019-10-26 16:52:06 -04:00
Thomas Harte	eae11cbf17	Adds a dummy response for mouse interrogation.	2019-10-26 16:14:24 -04:00
Thomas Harte	2207638287	Adds hsync and vsync interrupts.	2019-10-25 22:42:13 -04:00
Thomas Harte	872897029e	Attempts a complete wiring of 68901 interrupts.	2019-10-25 22:36:01 -04:00
Thomas Harte	51b4b5551d	Actually, I think the 6850 is active low for interrupts.	2019-10-24 22:37:53 -04:00
Thomas Harte	092a61f93e	Does a better job of having just 512kb.	2019-10-21 23:10:30 -04:00
Thomas Harte	e30ba58e0d	Attempts to wire ACIA interrupt signals into the MFP.	2019-10-21 23:02:30 -04:00
Thomas Harte	83d73fb088	The keyboard now responds to a reset on its serial line.	2019-10-20 23:13:44 -04:00
Thomas Harte	75c3e2dacd	Adds basic, incomplete dispatcher for the intelligent keyboard.	2019-10-20 23:07:19 -04:00
Thomas Harte	cf07982a9b	Ensures good serial line and ACIA behaviour. ... Next stop: having the intelligent keyboard react.	2019-10-20 22:10:05 -04:00
Thomas Harte	696af5c3a6	Starts to transfer serial line decoding logic into the line itself.	2019-10-20 20:38:56 -04:00
Thomas Harte	9a8352282d	Mostly but not quite fixes serial work.	2019-10-20 20:38:55 -04:00
Thomas Harte	34075a7674	Attempts to tie an intelligent keyboard to the other end of its serial line.	2019-10-20 20:38:55 -04:00
Thomas Harte	ff62eb6dce	The ACIA actually has two clocks, though on an ST they're both 500,000 Hz.	2019-10-20 20:38:55 -04:00
Thomas Harte	374439693e	Ensures serial lines know their writer's clock rate.	2019-10-20 20:38:55 -04:00
Thomas Harte	c4ef33b23f	JustInTimeActors can now specify a clock divider.	2019-10-20 20:38:55 -04:00
Thomas Harte	4e5b440145	Attempts mostly to implement 6850 output.	2019-10-20 20:38:55 -04:00
Thomas Harte	97d44129cb	Ensures all 16 data lines reach the video.	2019-10-20 20:38:55 -04:00
Thomas Harte	b0f5f7bd37	Attempts to start producing actual video.	2019-10-20 20:38:55 -04:00
Thomas Harte	a59ec9e818	Provides a token something where DMA should be.	2019-10-20 20:38:55 -04:00
Thomas Harte	4ead905c3c	Adds an empty shell for the ACIA.	2019-10-20 20:38:55 -04:00
Thomas Harte	127bb043e7	Adds enough logic to advance to an ACIA access error.	2019-10-20 20:38:55 -04:00
Thomas Harte	42ebe06474	Makes an attempt at tracking video sequence points.	2019-10-20 20:38:55 -04:00
Thomas Harte	305b1211ba	Makes a first attempt to box out the ST display area.	2019-10-20 20:38:54 -04:00
Thomas Harte	2cf52fb89c	Makes an unsuccessful first attempt at some timer functionality.	2019-10-20 20:38:54 -04:00
Thomas Harte	6e1b606adf	Adds a target for MFP read/write operations. ... Completely without any implementation, so far.	2019-10-20 20:38:54 -04:00
Thomas Harte	3bb0bf9e14	Adds some semblance of an AY.	2019-10-20 20:38:54 -04:00
Thomas Harte	87a6d22894	Starts to formalise the ST memory map a little.	2019-10-20 20:38:54 -04:00
Thomas Harte	484a0ceeb8	Starts forming an Atari ST memory map.	2019-10-20 20:38:54 -04:00
Thomas Harte	da1436abd2	Gifts the Atari ST a 68000 and non-functional video.	2019-10-20 20:38:54 -04:00
Thomas Harte	125f781ced	Starts to create an actual shell of a machine.	2019-10-20 20:38:54 -04:00
Thomas Harte	0da1881a07	Adds an Atari ST enumeration and factory method.	2019-10-20 20:38:54 -04:00