273 Commits

Author	SHA1	Message	Date
Peter Evans	e23a3e4b63	Use macro definitions for track/sector length	2018-02-04 14:19:40 -06:00
Peter Evans	64364d91ad	Remove unnecessary for loop	2018-02-04 14:15:24 -06:00
Peter Evans	463a9ba268	Handle all phase cases (zero and non-zero)	2018-02-04 01:11:30 -06:00
Peter Evans	1245ddec55	Make encode/decode more testable with return codes	2018-02-04 00:21:39 -06:00
Peter Evans	8009a33bd4	Use int return for error code	2018-02-04 00:06:22 -06:00
Peter Evans	2bdc921b76	Add missing docblocks	2018-02-03 21:56:27 -06:00
Peter Evans	67f943d891	When encoded, the track size is larger than 4k	2018-02-03 21:18:07 -06:00
Peter Evans	a6c1564747	Add fwrite function, support for streams and types	2018-02-03 20:50:08 -06:00
Peter Evans	2dd21f1487	Add image type, image segment	2018-02-03 18:10:29 -06:00
Peter Evans	c010c10ce2	Add missing docblocks	2018-02-03 17:46:56 -06:00
Peter Evans	10d13f755c	Document the pseudo-instruction "bad"	2018-02-03 17:44:41 -06:00
Peter Evans	5ac2fbdbee	Add new decode functions, flesh out sector code	2018-02-03 00:23:57 -06:00
Peter Evans	d2e21b55c4	Implement the sector decode function ... This was a bear to do, and the product being committed is probably my third (or fourth?) try.	2018-02-02 17:19:38 -06:00
Peter Evans	fadf5a9782	Add decode...code	2018-02-01 18:41:01 -06:00
Peter Evans	323803866a	Include better documentation of otherwise grumpy functions	2018-01-31 15:58:32 -06:00
Peter Evans	98c2ef16cc	Add encode function for nib	2018-01-31 15:40:39 -06:00
Peter Evans	4943d66e8c	Correct typo so it's clear this is a get OOB	2018-01-31 15:40:06 -06:00
Peter Evans	c031822063	Use nibbilized size for dest; allow offset to overflow	2018-01-31 14:28:29 -06:00
Peter Evans	8a53e02f00	Rename to enc.c, add header file	2018-01-31 00:09:07 -06:00
Peter Evans	b09ca2dae5	Reword comment	2018-01-30 18:55:23 -06:00
Peter Evans	5c7dbb4cfe	My first crack at some code for nibblization	2018-01-30 16:30:23 -06:00
Peter Evans	b2bfee7f96	The SLOTCXROM switch seems to work opposite ... Which seems weird, but I've verified this in some other places.	2018-01-29 00:30:12 -06:00
Peter Evans	418688cd15	Lock disk drives during disassembly	2018-01-28 18:06:14 -06:00
Peter Evans	33b44d1a70	selected_drive will now have a default value (of drive1)	2018-01-27 21:53:12 -06:00
Peter Evans	2c3d6a4dfa	Reimplement idx and idy to use 16-bit addresses ... While I have found some conflicting details on how this should be done, it seems pretty clear to me that IDX and IDY work with 16-bit addresses, not 8-bit. The inability to do so was preventing us from probing peripheral ROM (e.g. at $C705, for the disk controller).	2018-01-27 19:54:55 -06:00
Peter Evans	4165c1cefc	Make idx, idy clearer ... I'm still not confident this is how it _should_ work, but I have found conflicting accounts online for the behavior of these two modes. The current code is what allows the Apple II to bootstrap as it should.	2018-01-27 13:04:19 -06:00
Peter Evans	76e4d3797f	By default SLOTCXROM should be high	2018-01-26 22:01:46 -06:00
Peter Evans	ca5276cb6b	It turns out we don't use carry for addr modes. ... This fix actually corrects a rather irritating bug where the Apple ][ logo was displaying one-off--e.g., as "pple ][D".	2018-01-26 21:18:42 -06:00
Peter Evans	9c0e01ecd2	Add drive phases, switches for control and i/o	2018-01-26 19:49:19 -06:00
Peter Evans	e901bcf54d	Add docblock comments	2018-01-25 14:12:49 -06:00
Peter Evans	217b27b040	Handle inversed text	2018-01-24 20:05:47 -06:00
Peter Evans	2ae272af3a	Stop flickering issue by clearing before drawing	2018-01-24 20:04:53 -06:00
Peter Evans	d581194bbc	Add apple text functions and refactor draw logic for text	2018-01-24 16:11:08 -06:00
Peter Evans	6069ab4d1b	Add inverse font	2018-01-24 14:26:28 -06:00
Peter Evans	cfee8baf25	Refresh once every thirtieth of a second ... And also refresh on keypress	2018-01-23 23:14:26 -06:00
Peter Evans	882cf2c166	Comment out cycles	2018-01-23 21:41:43 -06:00
Peter Evans	9f518d5141	We should not resolv the address a second time	2018-01-23 21:41:30 -06:00
Peter Evans	1751a7af1f	Don't try to call resolv() if resolv is NULL	2018-01-23 21:18:42 -06:00
Peter Evans	9215600148	Don't attempt to render a glyph if render is NULL	2018-01-23 16:09:27 -06:00
Peter Evans	766aea9c96	Change dbuf switches to work off correct addresses	2018-01-23 15:51:06 -06:00
Peter Evans	8f516db42b	Remove arbitrary counter and allow escape to exit	2018-01-23 15:04:11 -06:00
Peter Evans	775a145480	Rework screen display logic for more efficiency	2018-01-23 14:52:16 -06:00
Peter Evans	b5e1e09a35	Bump up counter by a ton	2018-01-22 21:43:18 -06:00
Peter Evans	b97af6cb16	Disable active refresh	2018-01-22 21:43:01 -06:00
Peter Evans	47d7483297	Disable usleep delay for now	2018-01-22 21:42:42 -06:00
Peter Evans	e0b4fd27e8	Better logging	2018-01-22 21:42:30 -06:00
Peter Evans	56433e2ebe	Show nothing if no value is associated with an instruction	2018-01-22 12:31:19 -06:00
Peter Evans	945bf23f22	Use correct default status and memory mode	2018-01-21 21:33:12 -06:00
Peter Evans	c2debec4d3	Make output more compact	2018-01-21 21:32:43 -06:00
Peter Evans	ef7977c18b	Only set or unset DHIRES if IOUDIS is on	2018-01-21 21:32:22 -06:00