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Commit Graph

679 Commits

Author SHA1 Message Date
Greg King
7e298e347d Fixed the CBM screen-code C header.
Changed the number literals from Assembly format to C format.  Swapped the (upper-/lower-case) mappings of letters because the header converts from ASCII, not PetSCII.
2019-03-05 21:20:05 -05:00
IrgendwerA8
3d9ac21b80 Added missing pointer star for Basic structure. 2019-03-05 00:26:14 +01:00
IrgendwerA8
e1a4910580 Code review changes and build fix. 2019-03-04 23:32:56 +01:00
IrgendwerA8
8ead5f2f5a Access Atari OS variables by structure. 2019-03-03 22:50:57 +01:00
Bill Kendrick
417ef278a3 Move Atari-specific PIA reg vals to atari.h
PIA is also used in the Commodore PET, and for different
purposes (see http://www.6502.org/users/andre/petindex/progmod.html#pia1),
so extracted Atari-specific register #defines and placed them in atari.h.
2019-02-17 23:23:30 +01:00
Oliver Schmidt
10a31d006b Add translation from PETSCII to screen codes. 2019-02-12 17:47:17 +01:00
Christian Groessler
58484449b4 remove TABs 2019-02-05 23:27:52 +01:00
Bill Kendrick
9a83284b7b Cleaned up _pia.h register stuff a bit
Most documentation say that most of the bits are normally set to 1 or 0,
so just mentioning that in the comments.

A.N.A.L.O.G. issue 59 (April 1988) "Bits & Pieces" column, "Atari Zucchini"
(https://www.atarimagazines.com/analog/issue59/bits_pieces.php) implies
that they are used for specific things, but it's not clear enough to be
useful (or specifically states "Too complex and not pertinent").

This is probably sufficient for most purposes; if any PIA / PACTL/PBCTL
experts pop up, they can tell us exactly how those 4 bits can be utilized.
2019-01-17 23:53:53 -08:00
Bill Kendrick
af8eb57f63 Atari colors into _gtia.h; NMIRES/NMIST as union
Use a C "union" to give both read (NMIST) and write (NMIRES) labels
to their shared register in ANTIC. (h/t @groessler).

Consolodate duplicated color definitions (HUE_..., COLOR_... and TGI_COLOR_...;
and the "_gtia_mkcolor()" macro), found in both "atari.h" and "atari5200.h",
moving it to "_gtia.h", which they both share (and which makes the most sense).
2019-01-17 22:44:25 -08:00
Bill Kendrick
32525e0ddb atari.h: Shadow registers for hardware registers 2019-01-17 00:23:04 -08:00
Bill Kendrick
93a13315de Comment adjustments; removed surperfluous keycodes
Cleaned up comments in Atari 8-bit headers.
Internal keycodes (POKEY's KBCODE) were already #defined in atari.h,
so didn't need a whole new set in _pokey.h.
2019-01-16 23:29:41 -08:00
Bill Kendrick
4b61c54092 Relocate register values outside structs, + more
Relocated register #define'd values outside of the structs,
improved comment format, expanded & corrected some things.

h/t Trevin Beattie (https://user.xmission.com/~trevin/) for the PIA
register descriptions.
2019-01-15 01:24:12 -08:00
Bill Kendrick
d52af69d69 Adjustments per most feedback on cc65 PR 831
(I appreciate the feedback!)
2019-01-14 20:47:05 -08:00
Bill Kendrick
5ee3c88017 Some PIA register #defines
Some register #defines for PIA.

(Some may be too Atari-centric -- I know PIA chip was used by PET &
perhaps other platforms supported by cc65.  If so, perhaps we can
define them elsewhere.  Not sure whether they'd be the same for 5200;
I admit I know zilch about that system except that it's _more or less_
an Atari 400)
2019-01-13 21:31:18 -08:00
Bill Kendrick
3783010091 POKEY: Add register #defines & internal kybd codes
Add #defines for certain registers' values.
Also add #defines for internal keyboard codes (unrelated to ATASCII;
e.g. [Q] = 47, [W] = 46, [Shift] adds 64, etc), as seen in KBCODE.
2019-01-13 20:32:55 -08:00
Bill Kendrick
d371d1bd51
Note about hues varying depending on environment
There aren't really standard color names (e.g., Compute!'s Mapping the Atari and First Book of Atari Graphics have different names), and exact colors shown depend on the system & device, anyway. Added a note.
2019-01-13 01:59:41 -08:00
Bill Kendrick
10f44c18a3
Tweaks to description of ANTIC chip in _antic.h
Tweak to comments at the top
2019-01-13 01:58:10 -08:00
Bill Kendrick
95b791bf0e
Added #defines for GTIA register values 2019-01-13 01:57:21 -08:00
Bill Kendrick
ab31b3edfe
Add more register #defines to ANTIC header file
* DMACTL - playfield size, DMA access, PMG resolution
 * CHACTL - inverted text, inverse effects
 * NMIEN

Also, added #define equivalents for Display List mode line instructions
based on Atari 8-bit OS (aka Atari BASIC "GRAPHICS" command) values
(e.g., "DL_GRAPHICS0" == "DL_CHR40x8x1").

Added some more documentation in the comments.

Added macros with assembly language for the start/end of Display List
Interrupt (DLI) functions.
2019-01-13 00:31:31 -08:00
Scott Hutter
59ab140dc9 fix for err blank line removal 2018-12-30 18:57:46 +01:00
Scott Hutter
94e623165d removed fastcall from SetNewMode 2018-12-30 18:57:46 +01:00
Scott Hutter
2f6f468aad Added SetNewMode() to geoslib - #814 2018-12-30 18:57:46 +01:00
Paul Gardner-Stephen
19ca1f6b48 add support for detecting 45GS02 2018-12-30 03:49:26 -05:00
Marc Rintsch
80a43d732d Added missing external declaration of c64_65816_emd. 2018-12-21 09:51:27 +01:00
IrgendwerA8
d0053422e9 Code review aftermath 2: Put defines into parentheses 2018-11-12 14:36:40 +01:00
IrgendwerA8
61a9871c21 Adaptations due to code review. 2018-11-12 14:36:40 +01:00
IrgendwerA8
f86ebbd258 Support for self explanatory KBCODE values 2018-11-12 14:36:40 +01:00
Christian Groessler
6dc7309e50 Atari: add support for BW-DOS. Initially contributed by Daniel Serpell. 2018-09-27 17:37:59 +02:00
Christian Groessler
e9b8f5d814 Atari: Add detection of RealDOS (http://www.realdos.net/realdos.html). 2018-09-06 12:08:50 +02:00
Greg King
b5d939c858 Style changes. 2018-08-30 11:48:46 +02:00
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
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
Oliver Schmidt
3598fb505d Fixed Visual C++ build (and some style adjustments). 2018-08-19 00:01:40 +02:00
Patrick Pelletier
e549e23a87 Use non-POSIX values for S_IREAD and S_IWRITE.
(As requested in the PR.)
2018-08-17 23:28:45 +02:00
Patrick Pelletier
411a5a9483 Don't pass mode argument to open() from _fopen().
It isn't necessary, since paravirt.c has a default if the mode isn't
pushed onto the stack.
2018-08-17 23:28:45 +02:00
Patrick Pelletier
aba320eade Allow "mode" argument to open() to be passed from 6502 code.
Implements this suggestion:
https://github.com/cc65/cc65/pull/719#issuecomment-413809096
2018-08-17 23:28:45 +02:00
Oliver Schmidt
842c151edd Replaced _systime with clock_gettime.
We want to add the capability to not only get the time but also set the time, but there's no "setter" for the "getter" time().

The first ones that come into mind are gettimeofday() and settimeofday(). However, they take a struct timezone argument that doesn't make sense - even the man pages says "The use of the timezone structure is obsolete; the tz argument should normally be specified as NULL." And POSIX says "Applications should use the clock_gettime() function instead of the obsolescent gettimeofday() function."

The ...timeofday() functions work with microseconds while the clock_...time() functions work with nanoseconds. Given that we expect our targets to support only 1/10 of seconds the microseconds look preferable at first sight. However, already microseconds require the cc65 data type 'long' so it's not such a relevant difference to nanoseconds. Additionally clock_getres() seems useful.

In order to avoid code duplication clock_gettime() takes over the role of the actual time getter from _systime(). So time() now calls clock_gettime() instead of _systime().

For some reason beyond my understanding _systime() was mentioned in time.h. _systime() worked exactly like e.g. _sysremove() and those _sys...() functions are all considered internal. The only reason I could see would be a performance gain of bypassing the time() wrapper. However, all known _systime() implementations internally called mktime(). And mktime() is implemented in C using an iterative algorithm so I really can't see what would be left to gain here. From that perspective I decided to just remove _systime().
2018-08-15 16:06:44 +02:00
Greg King
5e67eee362 Made the VIC-IIe TGI driver put its bitmap behind the ROMs. 2018-07-29 23:46:03 -04:00
Oliver Schmidt
97be359d4a Updated comment. 2018-07-26 13:09:21 +02:00
Greg King
6d87370881 Fixed strpbrk().
Added its prototype.  Documented it.
2018-05-29 14:29:50 -04:00
compyx
dade099b9d CBM kernal call SECOND, update cbm.h 2018-05-23 17:37:48 +02:00
compyx
30ada49458 Add CBM kernal call TKSA to CBM library
This adds the CBM kernal call TKSA as cbm_k_tksa() to the CBM library.
2018-05-22 14:16:00 +02:00
Marco van den Heuvel
ad7b339c44 Added C64 Turbo Master accelerator code and documentation. 2018-04-30 14:30:35 -07:00
Oliver Schmidt
5c07db3a74
Merge pull request #634 from blackystardust/master
Added C65/C64DX accelerator code and documentation.
2018-04-30 22:51:42 +02:00
Oliver Schmidt
a482b54ed7
Removed extern keyword from function prototype. 2018-04-29 13:50:09 +02:00
Marco van den Heuvel
11629bcf99 Added C65/C64DX accelerator code and documentation. 2018-04-27 14:22:41 -07:00
Marco van den Heuvel
97e69952c4 Removed extern keyword from function prototypes. 2018-04-27 09:16:25 -07:00
Marco van den Heuvel
f2e46f0fdf Added C64 Chameleon accelerator code and documentation. 2018-04-25 12:53:29 -07:00
Marco van den Heuvel
cc2bcb8a4d Changed c128 accelerator code and documention to include both C64 and C128 support. 2018-04-23 19:25:11 -07:00
Marco van den Heuvel
3f5683b391 Added C128 in C64 mode accelerator code and documentation. 2018-04-20 12:08:28 -07:00