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mc64

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• a34581e3ea implement STOP and END commands Paul Gardner-Stephen 2019-05-13 03:47:34 +09:30
• 699cc73b70 add pre-built BASIC and KERNAL ROM images. Paul Gardner-Stephen 2019-05-07 22:29:28 +09:30
• 8a6fd814d7 update README Paul Gardner-Stephen 2019-05-07 22:29:22 +09:30
• 621d470fe3 update README discussion of copyright. Paul Gardner-Stephen 2019-05-07 12:59:03 +09:30
• 0f18e18e9b add explanations for remaining coincidental similarities Paul Gardner-Stephen 2019-05-07 12:40:41 +09:30
• 61b69ddf3d document many more cooincidental similarities with C64 ROMs Paul Gardner-Stephen 2019-05-07 12:17:52 +09:30
• 1bcdf6b738 reorder some instructions to reduce coincidental similarity with BASIC ROM Paul Gardner-Stephen 2019-05-07 11:39:47 +09:30
• 84ae446f7b explain more KERNAL coincidental similarities. Paul Gardner-Stephen 2019-05-07 11:22:16 +09:30
• 3847631e0e rearrange initialisation of $00 and $01 to reduce cooincidental similarity with C64 KERNAL Paul Gardner-Stephen 2019-05-07 11:21:52 +09:30
• 81e7f27f1b explain a number of KERNAL coincidental similarities. Paul Gardner-Stephen 2019-05-07 10:20:35 +09:30
• a6942281de finish documenting all cooincidental similarities with C64 BASIC ROM. Paul Gardner-Stephen 2019-05-07 10:12:20 +09:30
• f595af2c41 fix routine we had changed to be less coincidentally similar to one in C64 BASIC so that it works. Paul Gardner-Stephen 2019-05-07 10:10:14 +09:30
• 3fc264ac15 explain more similarities. Go to some effort to avoid some similarities where we can see a way. Paul Gardner-Stephen 2019-05-07 10:02:25 +09:30
• f15c7aa3a2 fix scrolling / empty lines during LIST Paul Gardner-Stephen 2019-05-07 07:34:47 +09:30
• f23b0d03e9 fix many blank lines when scrolling Paul Gardner-Stephen 2019-05-07 07:25:01 +09:30
• f031907abb don't allow IRQs during CHROUT to avoid all cursor pooh Paul Gardner-Stephen 2019-05-07 07:04:15 +09:30
• d0797fedef reverse attempted cursor pooh fix. Paul Gardner-Stephen 2019-05-07 06:56:00 +09:30
• 94e25eb40e fix cursor pooh Paul Gardner-Stephen 2019-05-06 22:41:41 +09:30
• 2ad07c1a82 tweak version number in startup banner Paul Gardner-Stephen 2019-05-06 22:31:36 +09:30
• b1eff47e97 replace simple startup message with Deft's fancy one Paul Gardner-Stephen 2019-05-06 22:29:24 +09:30
• 7183b3a39e fix initialisation of ZP Paul Gardner-Stephen 2019-05-06 22:02:07 +09:30
• 5359801149 work around VICE bug Paul Gardner-Stephen 2019-05-06 21:59:45 +09:30
• 54ecbf9097 implement joystick 1 cursor movement. Paul Gardner-Stephen 2019-05-06 16:45:01 +09:30
• b3e446b64e show line number when BREAKing Paul Gardner-Stephen 2019-05-06 07:14:53 +09:30
• 0a46e7c135 implement GOTO command Paul Gardner-Stephen 2019-05-06 07:11:23 +09:30
• d8d7d878e4 fix preservation of I flag in memory move routines. Paul Gardner-Stephen 2019-05-06 07:09:46 +09:30
• 7d1f7fb7c5 begin implementing REM command. Paul Gardner-Stephen 2019-05-06 07:06:19 +09:30
• fab8839c76 allow RUN/STOP to stop LIST command. Paul Gardner-Stephen 2019-05-05 22:36:17 +09:30
• 4b88af9da0 make SCNKEY routine actually do what it should. Issue #23 Paul Gardner-Stephen 2019-05-05 16:36:39 +09:30
• 810dfb75af put setup VIC-II routine at $E5A0 for Advanced Pinball Simulator. Issue #23 Paul Gardner-Stephen 2019-05-05 16:31:24 +09:30
• e88f12f2ed put IOINIT at $FDA3. Issue #20 Paul Gardner-Stephen 2019-05-05 15:06:50 +09:30
• 933351943f move all VIC-II initialisation from IOINIT to CINT. Issue #20 Paul Gardner-Stephen 2019-05-05 15:06:09 +09:30
• 8f09d4e8e1 fix typo. Issue #20 Paul Gardner-Stephen 2019-05-05 14:58:32 +09:30
• ccf4dbe5da implement $EA7E entry point and fix $EA31 entry point. Issue #20 Paul Gardner-Stephen 2019-05-05 14:57:42 +09:30
• 1d850ad7c3 place some routines at well known expected locations. Paul Gardner-Stephen 2019-05-05 02:24:34 +09:30
• 4a374b27be Fix LIST output for Nebulus: line links with high byte = $00 = end of program. Paul Gardner-Stephen 2019-05-05 02:21:47 +09:30
• 49536d8378 fix handling of EOI marker so we can load more than one program in life of system Paul Gardner-Stephen 2019-05-05 02:15:46 +09:30
• 1005ee4952 fix detection and reporting of FILE NOT FOUND error Paul Gardner-Stephen 2019-05-05 02:02:01 +09:30
• 4ddd31176e remove debug output Paul Gardner-Stephen 2019-05-05 01:40:57 +09:30
• 98f2d022ce stop after completing a LOAD command. Paul Gardner-Stephen 2019-05-05 01:40:45 +09:30
• e6fee5e979 fix more problems with loading. Now SEARCHING FOR message works. Paul Gardner-Stephen 2019-05-05 01:38:51 +09:30
• e547b56003 fix various problems with LOAD taking a real filename. More to do. Paul Gardner-Stephen 2019-05-05 01:26:37 +09:30
• f14cf20c92 explicitly compare read result with zero now that under ROM routines preserve P Paul Gardner-Stephen 2019-05-05 00:54:53 +09:30
• 66964ab567 fix routines to peek/poke under ROMs Paul Gardner-Stephen 2019-05-05 00:53:14 +09:30
• 000b87b87b send whole filename, instead of first char until end of time. Paul Gardner-Stephen 2019-05-05 00:52:41 +09:30
• 4958ad696f more work towards making LOAD command accept filename Paul Gardner-Stephen 2019-05-05 00:45:26 +09:30
• 2824abafd9 remove debug output Paul Gardner-Stephen 2019-05-05 00:27:01 +09:30
• 74aaf9fe3f fix bug in print_integer with digit 9 Paul Gardner-Stephen 2019-05-05 00:25:15 +09:30
• 5586e61ab9 fix loading files > 255 bytes long. Paul Gardner-Stephen 2019-05-05 00:14:21 +09:30
• f80b49b845 relink BASIC lines after loading a program. Paul Gardner-Stephen 2019-05-05 00:11:19 +09:30
• 1b75d2bbfd remove debug Paul Gardner-Stephen 2019-05-05 00:11:13 +09:30
• 6d74679a5c set end of loaded memory pointer in BASIC LOAD routine. Other small fixes. Paul Gardner-Stephen 2019-05-04 23:52:48 +09:30
• 0a97a16552 remove some debug output Paul Gardner-Stephen 2019-05-04 23:41:19 +09:30
• 19c9d655ce clear reverse video flag after displaying each line Paul Gardner-Stephen 2019-05-04 23:41:07 +09:30
• 4a3ea0d091 Start implementing LOAD KERNAL routine to actually load where it should. Paul Gardner-Stephen 2019-05-04 23:38:42 +09:30
• fa55c83fff generally remove some debug output, add missing file, and make KERNAL LOAD routine more complete. Paul Gardner-Stephen 2019-05-04 23:12:54 +09:30
• d124349e50 handle EOI and generally get closer to a working LOAD routine Paul Gardner-Stephen 2019-05-04 23:05:23 +09:30
• 287953dab6 fix latching of initial clock sequence when receiving a byte Paul Gardner-Stephen 2019-05-04 22:54:46 +09:30
• 1e524eb8be send an invalid command instead. Paul Gardner-Stephen 2019-05-04 22:30:36 +09:30
• ee87f4a775 get to the point of being able to receive some bytes before locking up. Paul Gardner-Stephen 2019-05-04 22:28:29 +09:30
• ea070f9bfe ... and actually read the DATA bit when recording data in iec_rx_byte Paul Gardner-Stephen 2019-05-04 22:20:57 +09:30
• c80ff23599 ... and fix the same stupid use of wrong bit in iec_wait_for_clock_assert Paul Gardner-Stephen 2019-05-04 22:18:41 +09:30
• b1945095fc fix stupid checking of wrong bit in iec_wait_for_clock_release Paul Gardner-Stephen 2019-05-04 22:16:47 +09:30
• acbac9e5f8 simplify and fix iec_turnaround_to_listen based on 1541-III documentation Paul Gardner-Stephen 2019-05-04 22:13:59 +09:30
• 37277ba5a3 try just reading error channel as a test Paul Gardner-Stephen 2019-05-04 22:09:42 +09:30
• d0932029bb actually try 255 times before giving up when waiting for talker turnaround. Paul Gardner-Stephen 2019-05-04 22:09:19 +09:30
• 84841ab283 fix bug in iec_tx_byte in acknowledgement check. Paul Gardner-Stephen 2019-05-04 22:01:36 +09:30
• cdbb1b8c58 implement dummy read from command channel routine to aid debugging Paul Gardner-Stephen 2019-05-04 18:09:40 +09:30
• 27432fa745 fix clearing C flag on return. Paul Gardner-Stephen 2019-05-04 18:08:57 +09:30
• c536780970 fix mounting of disk image for test to not auto-run anything Paul Gardner-Stephen 2019-05-04 17:25:48 +09:30
• eedc7e7b7e mount a D64 in VICE during tests, so that there is something to read Paul Gardner-Stephen 2019-05-04 17:13:27 +09:30
• 6dd434c688 go back to trying to debug real file situation Paul Gardner-Stephen 2019-05-04 17:08:21 +09:30
• 79017d2d50 fix FILE NOT FOUND detection in IEC ATN turnaround Paul Gardner-Stephen 2019-05-04 17:07:05 +09:30
• 8994f3c608 generally try to debug the FILE NOT FOUND situation Paul Gardner-Stephen 2019-05-04 17:00:40 +09:30
• 49d5733246 fix some bugs in IEC ATN turnaround Paul Gardner-Stephen 2019-05-04 16:59:37 +09:30
• cc92b7d7e0 fix typo in iec_release_atn Paul Gardner-Stephen 2019-05-04 16:37:24 +09:30
• 66c319f116 fix timeout comparison in iec_tx_byte Paul Gardner-Stephen 2019-05-04 16:35:04 +09:30
• 7c89705dc6 nope, that didn't help at all, but did indeed result in live-lock as feared. Paul Gardner-Stephen 2019-05-04 12:02:52 +09:30
• 3e0c6e3c1e try to fix ATN turn around to listen Paul Gardner-Stephen 2019-05-04 12:02:25 +09:30
• 9f05cc3e4c instrument to debug loading. Paul Gardner-Stephen 2019-05-04 11:52:14 +09:30
• cc3c17a48a add missing file Paul Gardner-Stephen 2019-05-04 11:47:52 +09:30
• 9f6f179666 implement the rest of iec_rx_byte Paul Gardner-Stephen 2019-05-04 11:46:51 +09:30
• dec2714ba0 begin implementing iec_rx_byte and rest of LOAD sequence Paul Gardner-Stephen 2019-05-04 11:30:03 +09:30
• 92ac67d6a7 fix the bits we are setting and checking in IEC turn around to listen. Paul Gardner-Stephen 2019-05-04 11:22:02 +09:30
• e5cdf77d50 more work towards IEC bus support: Work on LOAD routine and the necessary IEC functions for it. Paul Gardner-Stephen 2019-05-03 21:30:32 +09:30
• 148a285633 correctly detect device not present Paul Gardner-Stephen 2019-05-02 21:55:11 +09:30
• dcebe17e51 fix inverted sense of DATA line when writing bytes. We can now get a device to respond to an ATN byte. Paul Gardner-Stephen 2019-05-01 23:02:29 +09:30
• e67eb37937 remove redundant IEC port write during TX setup Paul Gardner-Stephen 2019-05-01 22:45:18 +09:30
• 86a579e91c don't corrupt Y register in iec_wait60ns Paul Gardner-Stephen 2019-05-01 22:45:02 +09:30
• 568bbb1cb2 fix iec_release_clk to release correct bit Paul Gardner-Stephen 2019-05-01 22:44:29 +09:30
• 3a8200d66d IEC serial bytes have 8 bits, not 9. Fix logic to count 8 bits on TX Paul Gardner-Stephen 2019-05-01 22:16:33 +09:30
• 7caae74955 move debug code for testing IEC bus Paul Gardner-Stephen 2019-05-01 22:12:33 +09:30
• 9f0880ed7e fix sense of DATA line reading. Paul Gardner-Stephen 2019-05-01 22:11:17 +09:30
• 38b35d05ad fix asserting ATN line. Paul Gardner-Stephen 2019-05-01 22:10:57 +09:30
• af7e93476c setup DDR for IEC serial bus Paul Gardner-Stephen 2019-05-01 21:52:22 +09:30
• 687ed9c56a more work towards IEC bus. Also don't corrupt $DD00 VIC-II bank bits in the process. Paul Gardner-Stephen 2019-05-01 21:47:00 +09:30
• 16dcfbe22b begin implementing IEC serial protocol. Paul Gardner-Stephen 2019-05-01 21:40:32 +09:30
• 27b33c2b26 use more space efficient calling convention for calling errors Paul Gardner-Stephen 2019-05-01 07:37:52 +09:30
• b45e7aab65 RUN does implicit CLR Paul Gardner-Stephen 2019-04-29 23:23:30 +09:30
• f439cb0a83 correctly detect end of program Paul Gardner-Stephen 2019-04-29 23:21:46 +09:30