chris/open-roms
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
2,282 Commits 2 Branches 0 Tags
29124377fc2bbeca0c0df3fb48a37db47c1802d4
Commit Graph
240 Commits
Author SHA1 Message Date
chris 29124377fc CLOSE: send LISTEN, CLOSE, UNLISTEN to a serial device 
close_iec sent its CLOSE command under ATN without first addressing the
device with LISTEN and without UNLISTEN after it, and built the command
with ORA $E0 (zero page) instead of ORA #$E0, so the byte it sent was
the secondary address ORed with whatever $E0 held. The drive never
learned of the CLOSE, so a file written on a channel was never written
to the disk.

The contract (Michael Steil, "Commodore Peripheral Bus: Part 2",
https://www.pagetable.com/?p=1031): CLOSE of a file on a serial device
sends LISTEN, then $E0 plus the secondary address, then UNLISTEN.
close_iec now does that, as iec_close_load already does for LOAD.

Not reported upstream (https://github.com/MEGA65/open-roms).
 2026-10-15 02:15:38 +02:00
chris 264e9792a5 CIOUT: buffer the byte where iec_tx_byte sends it from 
CIOUT kept the byte to send next in BSOUR ($95), but iec_tx_byte, which
CIOUT and iec_tx_flush (called by UNLSN, UNTLK, LISTEN, TALK) use to
send it, transmits TBTCNT ($A4). So every byte CHROUT sent to a serial
device was whatever TBTCNT held, and a file written with CHKOUT and
CHROUT held the wrong bytes.

The contract (C64 Programmer's Reference Guide, CIOUT): CIOUT sends a
byte to the listening device, always holding one back so that the last
byte goes with EOI when UNLSN ends the transfer. CIOUT now buffers the
byte in TBTCNT, the one-line fix of upstream PR #113; changing the send
path to read BSOUR would also move LOAD's and SAVE's bytes.

Upstream: https://github.com/MEGA65/open-roms/pull/113
 2026-10-15 02:15:38 +02:00
Rikard Nordgren 535917a0f4 Add init screen code at E536 2025-02-05 18:40:56 +01:00
FeralChild64 f9a1bab1fd fixed mistake in the hypervisor init 2021-08-24 22:03:05 +02:00
FeralChild64 a12eaff249 attempt tro fix https://github.com/MEGA65/open-roms/issues/68 2021-08-08 20:54:29 +02:00
FeralChild64 f7ff71f6cd added ram disk status message on startup screen 2021-05-19 22:59:35 +02:00
FeralChild64 f6abf8e4cd some work towards 2nd floppy 2021-05-16 17:58:22 +02:00
FeralChild64 d68583d1b3 improved support for different RAM configurations 2021-03-30 20:34:01 +02:00
FeralChild64 7510d4a83f fixed problem in LOAD, wrong register was used 2021-03-27 22:12:06 +01:00
FeralChild64 0e34cd8d68 more work on RAM disk support, added ATTIC/CELLAR RAM test 2021-03-26 21:43:24 +01:00
FeralChild64 0618d38cdd 65C02 code size optimization (22 bytes saved) in IEC code 2021-03-26 16:45:06 +01:00
FeralChild64 2110abf932 fixed JiffyDOS broken on some configuurations 2021-02-28 22:02:13 +01:00
FeralChild64 50da880ffc code size optimization 2021-02-24 21:11:41 +01:00
FeralChild64 b21ba971f9 CBDOS now works in compatibility mode too 2021-02-24 19:08:51 +01:00
FeralChild64 cb16d5d15c started MEGA65 speed handling rework, always run IEC code with disabled badlines 2021-02-24 18:44:18 +01:00
FeralChild64 67e9be4372 fixed LOAD command for CBDOS 2021-02-14 16:19:00 +01:00
FeralChild64 eec5a0680b small CBDOS tweaks 2021-02-14 15:23:12 +01:00
FeralChild64 3e9581cb89 fixed sending file name to CBDOS 2021-02-12 21:25:06 +01:00
FeralChild64 beefa98acc some work towards SECOND in the internal DOS 2021-02-12 18:53:38 +01:00
FeralChild64 04be4bf1d1 work towards SECOND/TKSA in CBDOS 2021-02-07 12:39:18 +01:00
FeralChild64 5f6a8eb7bf MEGA65 banner now displays internal device numbers 2021-02-03 20:20:10 +01:00
FeralChild64 92d1ad0177 rework for the initial CBDOS 2021-02-03 16:05:07 +01:00
FeralChild64 7d7b3c8419 improved IEC error handling 2021-01-25 22:41:18 +01:00
FeralChild64 38bf468653 fixed infinite loop in IEC code 2021-01-25 22:37:55 +01:00
FeralChild64 6193fdcf7b disabled function keys for non-direct mode and for MONITOR 2021-01-25 21:21:01 +01:00
FeralChild64 f218a3ca84 fixed another CHRIN problem, with empty lines 2021-01-25 21:02:16 +01:00
FeralChild64 737fa3c443 CHRIN fix, C64 part 2021-01-24 22:18:07 +01:00
FeralChild64 a9c999c189 CHRIN fix, M65 part 2021-01-24 22:10:02 +01:00
FeralChild64 dc5cc32e7b minor CHRIN code size optimization 2021-01-24 20:22:38 +01:00
FeralChild64 7cabe62cc5 more monitor bugfixes 2021-01-22 23:52:07 +01:00
FeralChild64 1bc7bf7e40 more work towards disk operations in monitor 2021-01-20 18:00:09 +01:00
FeralChild64 09cd066256 started work on monitor GO/JSR commands 2021-01-18 22:06:22 +01:00
FeralChild64 68a784d563 monitor command 'F' adaptation, not tested yet 2021-01-14 18:08:03 +01:00
FeralChild64 409b01aec4 adapter converters, preparations for DOS Wedge from within the monitor 2021-01-11 06:54:33 +01:00
FeralChild64 64a22abf50 fixed another memory-related problem in monitor 2021-01-09 23:45:22 +01:00
FeralChild64 018ae9725b small code size optimization 2020-12-30 22:16:08 +01:00
FeralChild64 cded5a0264 implemented solid cursor 2020-12-30 21:14:51 +01:00
FeralChild64 3054a44e7c screen editor color handling fix 2020-12-29 23:32:39 +01:00
FeralChild64 eab6efbe07 jingle sound is sane now 2020-12-29 15:16:51 +01:00
FeralChild64 b1131e219f jingle changes 2020-12-29 00:20:27 +01:00
FeralChild64 f5641953ab screen editor cleanup 2020-12-28 22:41:59 +01:00
FeralChild64 f3fa863985 small editor improvement 2020-12-28 22:23:40 +01:00
FeralChild64 0d05ac1f44 more MEGA65 screen editor work, bell works now 2020-12-28 21:38:36 +01:00
FeralChild64 1913697cd3 more MEGA65 screen editor features 2020-12-28 18:27:18 +01:00
FeralChild64 beeb228cd4 color usage tweaks 2020-12-28 17:29:11 +01:00
FeralChild64 c9484fc7ef more escape sequences implemented 2020-12-28 15:24:14 +01:00
FeralChild64 a70cd521f0 workaround for shifted escape sequences 2020-12-27 23:07:29 +01:00
FeralChild64 3c87029cd4 implemented ESC-K and ESC-X 2020-12-27 22:36:31 +01:00
FeralChild64 a19f6f6619 implemented first escape sequences 2020-12-27 21:16:23 +01:00
FeralChild64 15af5033e4 added 1 more color palette 2020-12-26 22:28:14 +01:00