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Commit Graph

2821 Commits

Author SHA1 Message Date
Olli Savia
5901ea80a4 Added SER_ prefix. Whitespace cleanup 2018-11-26 22:14:31 +01:00
Olli Savia
ad0b0982d0 Added SER_ prefix 2018-11-26 22:14:31 +01:00
Olli Savia
7b4807a8f7 Changed prefix SWL_ to SER_ 2018-11-26 22:14:31 +01:00
Olli Savia
aeff90ca90 Updated to use cbm_kernal.inc. Whitespace cleanups 2018-11-26 22:14:31 +01:00
IrgendwerA8
923fa8fc93 Saved 2 bytes and fixed error in case of negative result. 2018-11-09 17:27:35 -05:00
Oliver Schmidt
40f42e977f Adjusted comments to match actual prototypes. 2018-11-06 11:13:23 +01:00
Greg King
c2568d804d Fixed the Plus4's serial driver's ACIA address. 2018-10-23 19:52:23 -04:00
jede
385260e453 Fix comments and TELEMON uppercase 2018-10-19 23:43:40 +02:00
jede
6a18ad5fbf Clean wherey.s 2018-10-19 23:43:40 +02:00
jede
ee7514fea2 Remove BASHEAD segment which is not useful 2018-10-19 23:43:40 +02:00
Christian Groessler
df3c43bede Atari: implement clock_getres() 2018-09-28 09:47:20 +02:00
Christian Groessler
6dc7309e50 Atari: add support for BW-DOS. Initially contributed by Daniel Serpell. 2018-09-27 17:37:59 +02:00
Christian Groessler
9c7cccf3e5 Atari: clock_gettime() and clock_settime() implementations
They are using SpartaDOS-X interfaces and are therefore only working
in this environment.
2018-09-25 21:11:05 +02:00
Christian Groessler
118bc996fb libsrc/atari/getdefdev.s: small comment change 2018-09-20 23:58:23 +02:00
Christian Groessler
d52d986aca libsrc/atari/getdefdev.s: small optimization and fix a typo 2018-09-14 16:54:20 +02:00
Christian Groessler
4691974466 Atari: Make a good "default device" on AtariDOS (2.0 and 2.5) and MyDOS.
The default device will be the one the program was loaded from instead of
always D1:.
2018-09-13 22:33:54 +02:00
Christian Groessler
08d164a811 fix comment in last change 2018-09-12 01:20:12 +02:00
Christian Groessler
e4e3dbf756 atarixl: check at startup whether RAM beneath the ROM is in use
If detected, the program refuses to run, preventing a crash.
The check only works with SpartaDOS. I don't have an overview which
DOSes potentially use the RAM under the ROM. Or which other installed
programs might use it.

No additional runtime memory space is consumed, since the change
is in the "system check" load chunk which gets replaced by the
user program during loading.
2018-09-12 01:05:52 +02:00
Oliver Schmidt
a9a102b0e8 Protect random counter against ProDOS.
Although documented nowhere (!!!) ProDOS trashes the random counter locations $4E/$4F. Is discovered this because my TCP connections didn't have random local ports.

It's a really funny coincidence that David Finnigan discovered only 3 years ago the very same issue because of the very same reason: https://groups.google.com/forum/#!topic/comp.sys.apple2.programmer/1ciep_Oetvo
2018-09-08 23:29:59 +02:00
Oliver Schmidt
cddc4da3bb Just removed some trailing spaces. 2018-09-08 23:14:54 +02:00
Oliver Schmidt
73faf60fe0 Support randomize().
In order to have randomize() work as expected (and the Apple II random number generation in general) it is necessary to update the random counter during keypress wait just like the ROM function does.
2018-09-08 18:45:20 +02:00
Christian Groessler
b6ccd4d5d4 Atari: RealDOS adaptations
RealDOS is a SpartaDOS clone. Handle it the same way as SpartaDOS.
2018-09-06 15:55:07 +02:00
Christian Groessler
e9b8f5d814 Atari: Add detection of RealDOS (http://www.realdos.net/realdos.html). 2018-09-06 12:08:50 +02:00
Christian Groessler
1cc4fa9356 Atari: fix interrupt handling if extended memory is banked in
Extendend memory is mapped over the main memory in the 0x4000..0x7FFF
area. Many DOSes disable interrupts while extended memory is banked in,
but not all (e.g. SpartaDOS-X).
This change modifies the initial interrupt handler to map in main memory
before chaining to the "worker" handlers.
Since the initial interrupt handler uses a data segment to store the
trampoline to chain to the original handler, introduce a new "LOWBSS"
segment to hold this trampoline. Otherwise the trampoline may end up
inside the 0x4000..0x7FFF area.

Add a link time warning if "LOWCODE" segment lays within the extended
memory window.
2018-09-05 11:28:15 +02:00
Christian Groessler
d199ca1460 Atari, Atari5200: disable "attract mode" on mouse or joystick input
Fixes #736.
2018-09-05 11:23:12 +02:00
Oliver Schmidt
70a131e09a Just a minor comment improvement. 2018-09-02 23:07:26 +02:00
Greg King
39694d0aaa Fixed bugs; and, improved the efficiency of some pce library functions. 2018-08-30 11:48:46 +02:00
Greg King
959eff34a3 Fixed and improved some pce comments. 2018-08-30 11:48:46 +02:00
Greg King
2cc822b44e Fixed some mistakes (mostly in the documentation). 2018-08-30 11:48:46 +02:00
Greg King
b5d939c858 Style changes. 2018-08-30 11:48:46 +02:00
Greg King
203200e259 Used I/O mirror locations that avoid (redirected) zero-page accesses. 2018-08-30 11:48:46 +02:00
Greg King
f2d2f3c193 Moved the NES font into its own object module.
It can be replaced by a custom font when a program is built.
2018-08-29 12:13:58 -04:00
greg-king5
a08192b53e
Merge pull request #706 from xlar54/master
* tgi driver for c128 VIC-II

* Made the VIC-IIe TGI driver put its bitmap behind the ROMs.

* c128-hi.tgi doc
2018-08-29 10:34:05 -04:00
Christian Groessler
2d4210b309 Atari5200 joystick driver: enable POT input.
The "Atari800" emulator doesn't emulate this aspect, therefore the problem
wasn't noticed before.
2018-08-24 17:04:31 +02:00
Stefan
f3ef819b43 Update crt0.s 2018-08-21 12:21:56 +02:00
Stefan
3ae5161636 CMOS optimisation 3rd
"The decimal flag D is cleared" [...]
http://shu.emuunlim.com/download/pcedocs/pce_cpu.html
2018-08-21 12:21:56 +02:00
Stefan
199226d089 Update irq.s 2018-08-20 22:31:08 +02:00
Stefan
e335b50ed1 CMOS optimisation
The Lynx CPU always cleared the flag.
2018-08-20 22:30:41 +02:00
Patrick Pelletier
b37d0a444c lseek: Return EINVAL if new position is less than 0 or greater than 2^24 - 1.
Also, implemented @greg-king5's suggestion to save a byte on error paths.
2018-08-20 22:24:48 +02:00
Patrick Pelletier
59a4ab8778 lseek: Implement additional feedback from PR #723.
* Check CPU_ISET_65SC02 rather than APPLE2ENH.
* Set sreg and sreg+1 to $FF on error, to return -1 as a long.
2018-08-20 22:24:48 +02:00
Patrick Pelletier
8cb930b50e lseek: use STZ for APPLE2ENH
(As suggested in pull request.)
2018-08-20 22:24:48 +02:00
Patrick Pelletier
68a115cacf Fix ftell() on Apple II to return the correct value.
Fixes this issue:
https://github.com/cc65/cc65/issues/722

ftell() returns the value returned by lseek(), and lseek() for the
Apple II wasn't returning a value.
2018-08-20 22:24:48 +02:00
Oliver Schmidt
1644bcdf03 Implemented line wrap.
According to https://github.com/cc65/wiki/wiki/Direct-console-IO it is undefined what happens when the end of the sceen is reached. But it is _not_ undefined what happens when the end of the line is reached. So implement the usual thing - which was easy enough to do after all.
2018-08-20 00:30:17 +02:00
Oliver Schmidt
f8c6c58373 Made Apple II CONIO more flexible.
Originally the Apple II had a 64 char set and used the upper two bits to control inverse and blinking. The Apple //e brought then an alternate char set without blinking but more individual chars. However, it does _not_ contain 128 chars and use the upper bit to control inverse as one would assume. Rather it contains more than 128 chars - the MouseText chars. And because Apple wanted to provide as much backward compatibility as possible with the original char set, the alternate char set has a rather weird layout for chars > 128 with the inverse lowercase chars _not_ at (normal lowercase char + 128).

So far the Apple II CONIO implementation mapped chars 128-255 to chars 0-127 (with the exception of \r and \n). It made use of alternate chars > 128 transparently for the user via reverse(1). The user didn't have direct access to the MouseText chars, they were only used interally for things like chline() and cvline().

Now the mapping of chars 128-255 to 0-127 is removed. Using chars > 128 gives the user direct access to the "raw" alternate chars > 128. This especially give the use direct access to the MouseText chars. But this clashes with the exsisting (and still desirable) revers(1) logic. Combining reverse(1) with chars > 128 just doesn't result in anything usable!

What motivated this change? When I worked on the VT100 line drawing support for Telnet65 on the Apple //e (not using CONIO at all) I finally understood how MouseText is intended to be used to draw arbitrary grids with just three chars: A special "L" type char, the underscore and a vertical bar at the left side of the char box. I notice that with those chars it is possible to follow the CONIO approach to boxes and grids: Combining chline()/cvline() with special CH_... char constants for edges and intersections.

But in order to actually do so I needed to be able to define CH_... constants that when fed into the ordinary cputc() pipeline end up as MouseText chars. The obvious approach was to allow chars > 128 to directly access MouseText chars :-)

Now that the native CONIO box/grid approach works I deleted the Apple //e proprietary textframe() function that I added as replacement quite some years ago.

Again: Please note that chline()/cvline() and the CH... constants don't work with reverse(1)!
2018-08-20 00:30:17 +02:00
Greg King
7b8d4b28c7 Fixed the system banking in the cbm510 and the cbm610 targets' versions of clock_gettime() and clock_settime().
Their library function calls must run in the execution bank.
2018-08-19 17:12:54 -04:00
Oliver Schmidt
03a99569e3 Optimize for size. 2018-08-19 14:35:30 +02:00
Oliver Schmidt
250e4ed9e0 Added dummy clock_settime() for the Atari.
Allow to build ip65/date65.
2018-08-18 01:36:56 +02:00
Oliver Schmidt
fe5af26f9f Express assumption about struct timespec.
We basically cast a struct timespec pointer to a time_t pointer when we pass the clock_settime() paramter to localtime(). Explicitly express that in the source code.
2018-08-18 01:29:40 +02:00
Oliver Schmidt
eb9872c684 Added clock_settime() for some CBMs.
The CIA TOD only stores the time but not the date. Therefore the date set by clock_settime() ist just stored inside the C library for retrieval via clock_gettime().

The "very special" handling of 12AM/PM is based on https://groups.google.com/d/msg/comp.sys.cbm/ysVYSX4AMbc/vHrXCWEhCOUJ saying:

==========

24hr: Wr => Rd => Nx
--------------------
  0 : 92 => 12 => 01   <= Switch from 00 to 01 (24-hour notation)
  1 : 01 => 01 => 02
  2 : 02 => 02 => 03
 11 : 11 => 11 => 92
 12 : 12 => 92 => 81   <= Switch from 12 to 13 (24-hour notation)
 13 : 81 => 81 => 82
 14 : 82 => 82 => 83
 23 : 91 => 91 => 12

1. column ("24hr"): hour to be tested (decimal)
2. column ("Wr"):   hour written to TOD register (BCD)
3. column ("Rd"):   hour read from TOD register (BCD) immediately after writing the value in column 2 to see the conversion between AM/PM, if any
4. column ("Nx"):   next hour (BCD) after the hour switch

==========

Thanks Paul!
2018-08-18 01:29:40 +02:00
Oliver Schmidt
cb7ec508f6 Fixed 12 AM/PM handling.
Midnight is 12 AM and noon is 12 PM (see https://en.wikipedia.org/wiki/12-hour_clock). Therefore we need to subtract 12 hours in exactly those two hours.
2018-08-18 01:29:40 +02:00