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2373 Commits

Author SHA1 Message Date
mrdudz
03c6af3e15 rewrote color voodoo 2015-10-09 23:39:37 +02:00
Oliver Schmidt
ccc7c2b1f9 Minor style adjustment. 2015-10-09 22:18:51 +02:00
Oliver Schmidt
326da85145 Consistently place constructors (and their exclusive subroutines) in "INIT". 2015-10-09 21:44:20 +02:00
Oliver Schmidt
575f859a03 Keep low level VIC sprite stuff out of user code. 2015-10-09 18:33:35 +02:00
Greg King
8c609dd931 Explained why two variables were moved out of the BSS segment. 2015-10-09 12:00:41 -04:00
Oliver Schmidt
f21e3ae895 According to the contributor the prio wasn't intentionally set. 2015-10-09 13:42:25 +02:00
mrdudz
0b9d67d8a8 use default prio for the constructor 2015-10-09 13:40:10 +02:00
mrdudz
f712e9448a some cleanup/rework 2015-10-09 13:34:23 +02:00
mrdudz
e54ad81ce8 some more rework, second attempt on fixing the color issues. added ifdefs to disable the color voodoo alltogether for debugging purposes. 2015-10-08 20:43:25 +02:00
Greg King
ca70700a0b Restored the old C-stack initiation code. 
I had forgotten that the stack must be put below the CBM overlays.
 2015-10-08 06:04:49 -04:00
Greg King
8a880580dc Reduced the size of the moveinit subroutine. 
Made other changes that were recommended by Oliver.
* Changed its name from move_init to moveinit.
* Used self-modifying code in the subroutine.
* The INIT segment doesn't need to be optional (it's used by the start-up file).
 2015-10-07 14:56:14 -04:00
mrdudz
67dabb8489 attempted fix for the color problem noticed by oliver 2015-10-06 20:18:40 +02:00
mrdudz
ee54f7f40c optimized clrscr for size 2015-10-06 19:33:43 +02:00
Greg King
074e10d288 Adapted, to the c64 target, the INIT-segment overlay scheme from the apple2 targets. 
When a program starts running, INIT is moved from one place to another place.  Then, INIT's code is executed; and, the first place is re-used for variables.  After the INIT code has finished, the second place can be re-used by the heap and the C stack.  That means that initiation code and data won't waste any RAM space after they stop being needed.
 2015-10-05 05:47:43 -04:00
mrdudz
23473641f4 fix clrscr so it doesnt wipe sprite pointers 2015-10-01 17:16:02 +02:00
mrdudz
5ea842b88b SCREEN->screensize 2015-10-01 15:03:11 +02:00
Greg King
6217f8fa3a Made the Commodore version of exec() work in programs that are so big that they load into all of BASIC RAM. 
The function won't cause an "out of memory" error.
 2015-09-28 11:27:39 -04:00
mrdudz
4949836d16 fixed kplot 2015-09-28 17:12:20 +02:00
mrdudz
841d764a83 some cleanup, checked usage of __bgcolor and __textcolor 2015-09-28 16:10:11 +02:00
mrdudz
7486923c17 dont use seperate file for charset data 2015-09-28 15:57:16 +02:00
mrdudz
6cc654cca8 added extra check for graphical chars 2015-09-28 15:10:57 +02:00
mrdudz
257183fa55 removed duplicate copy of charset and shift it at init time, saves 1k 2015-09-27 19:34:43 +02:00
mrdudz
c221fe22f6 prepend soft80_ to some more internally used functions 2015-09-27 19:10:06 +02:00
mrdudz
b5a6578dca include bitmap and vram row tables directly rather than generating them (saves space) 2015-09-27 18:49:30 +02:00
mrdudz
fba28f46f6 fix initial text- and background colors 2015-09-27 18:36:53 +02:00
mrdudz
9e08c53b01 initial commit of soft80 implementation 2015-09-27 18:12:25 +02:00
Greg King
b82bb4f5ba Moved two errno helper functions into separate files. 
Only the function that actually is needed will be linked.  It is very useful for targets that do not have file-system I/O.
 2015-09-25 14:06:58 -04:00
Oliver Schmidt
b2657ecef5 Merge pull request #177 from mrdudz/pcenginetarget 
new target: PC Engine (TurboGrafx16)
 2015-09-24 09:58:28 +02:00
mrdudz
7d453a72fb use 'plot' instead of 'PLOT' 2015-09-20 12:18:41 +02:00
mrdudz
296489ba6c added interruptor support 2015-09-19 15:55:43 +02:00
mrdudz
859604407b fixed more flaws found by greg :) 2015-09-19 15:37:39 +02:00
Oliver Schmidt
45313075fe Merge pull request #208 from greg-king5/big-jump 
Improve the longjmp() and setjmp() functions.
 2015-09-11 21:06:50 +02:00
Greg King
dbf0adcec9 Improved longjmp() and setjmp(). 2015-09-11 14:18:22 -04:00
Greg King
031bd2ebf0 Fixed the random-seed generators for the Commodore targets. 
They use a byte from the time counter; but, it is stored in big-endian order.
 2015-09-11 10:03:07 -04:00
mrdudz
088a25437d fixed VDC register assignments 2015-09-07 12:55:36 +02:00
mrdudz
af2ba26c62 fix gregs complaints :) 2015-09-04 14:14:17 +02:00
mrdudz
d0a1dc73b8 Merge remote-tracking branch 'upstream/master' into pcenginetarget 2015-09-04 13:40:52 +02:00
mrdudz
57b8af1adc style fixes 2015-08-29 15:58:57 +02:00
Greg King
9c55bd1c96 Fixed bugs in the interface for C-level interrupt handlers. 
* Added an important ".code" directive.

* Import a linker-created zero-page symbol as an absolute address; then, convert it to zero-page when it is used.

Fixes bug report #198.
 2015-08-26 19:33:34 -04:00
Oliver Schmidt
657cc003be Merge pull request #184 from greg-king5/fastcall 
Update some fastcall info.
 2015-07-23 17:11:49 +02:00
Greg King
52eec1f236 Updated the fastcall information in a document and two Assembly files. 2015-07-22 13:31:14 -04:00
Oliver Schmidt
673b27cc1b Added empty IRQ backend. 
The driver kernels all require IRQ handling even if the actual drivers don't make use of it. So in order to successfully link a NES program using the joystick and/or TGI driver there has to be at least a "dummy" IRQ backend.
 2015-07-22 11:36:54 +02:00
mrdudz
0e29a0993f Merge remote-tracking branch 'upstream/master' into pcenginetarget 2015-07-20 18:42:04 +02:00
mrdudz
313d2dd210 added missing chline, cvline 2015-07-19 18:06:16 +02:00
Greg King
a9982de475 Added _directerrno() to the sim6502/sim65c02 libraries. 2015-07-18 18:23:08 -04:00
Greg King
0b6bcb565e Fixed a hardware-stack leak. 2015-07-17 20:36:56 -04:00
mrdudz
996c7b493e moved all notes into regular documentation 2015-07-16 21:39:13 +02:00
mrdudz
e77060458a fixed joypad bits 2015-07-16 20:15:05 +02:00
mrdudz
3119be2a1e added some cbm-like gfx chars to draw lines and boxes 2015-07-16 17:33:00 +02:00
mrdudz
d229d51be5 make sure clocktick starts at zero 2015-07-16 16:54:40 +02:00
mrdudz
21ef6b8510 fixed screensize, timertick, revers mode 2015-07-16 16:00:32 +02:00
mrdudz
1414411bba added waitvblank and fixed get_tv 2015-07-15 19:46:26 +02:00
mrdudz
c3d45e4c47 fixed issues found by gregg 2015-07-15 13:18:12 +02:00
mrdudz
ac27ed301a _tickcount -> tickcount 2015-07-14 19:55:41 +02:00
mrdudz
83391ab67c some more tweaking, added docs page 2015-07-14 17:22:47 +02:00
mrdudz
515a61a302 added imports for conio init to conio functions, so the constructor will get linked and called automatically 2015-07-13 12:10:09 +02:00
mrdudz
9e1d39a409 more cleanup and fixing 2015-07-12 16:40:52 +02:00
mrdudz
891cb97b2f more cleanup, joystick works again 2015-07-12 14:27:24 +02:00
mrdudz
21999b081f simple conio test works again 2015-07-12 10:32:55 +02:00
mrdudz
877fd532c2 Merge remote-tracking branch 'upstream/master' into pcenginetarget 2015-07-11 13:05:26 +02:00
Greg King
146daa1d0a Made some string output functions reject an invalid NULL buffer pointer. 2015-07-09 14:46:28 -04:00
Greg King
219905c6bc Fix two string output functions' handling of their buffer-size parameter. 
That parameter's type is unsigned; but, the functions return an int.  If the size is too big for a signed integer, then return an error code.
If the size is zero, then don't write anything into a buffer (the buffer pointer may be NULL).  But, do format and count the arguments.
 2015-07-09 10:43:45 -04:00
Greg King
08e18c93c5 Added explicit settings of calling conventions in pointer-to-function declarations in system and library headers. 2015-06-22 00:15:48 -04:00
Oliver Schmidt
fe023a1218 Merge pull request #151 from greg-king5/fastcall 
Make __fastcall__ be the default calling convention.
 2015-05-26 22:39:33 +02:00
Oliver Schmidt
0f1c3b0181 Fixed comment. 2015-04-27 09:39:50 +02:00
Oliver Schmidt
1748bb1ab6 Use well-known location BLTU2 for "memmove()". 2015-04-26 14:09:21 +02:00
Oliver Schmidt
3c1cd0d867 Added cmdline support to exec(). 
The starting point is the CALL2051:REM <cmdline> approach. It uses the BASIC input buffer at $200. ProDOS stores the name of the loaded program at $280 (which we want for argv[0]) leaving us with 128 char buffer. If we run the program via exec() we don't need the CALL2051 but only the REM token (which is just one char). So have a maximum cmdline length of 126 (plus a terminating zero).

There's no specification for ProDOS BIN file cmdline parameters so exec() just supports the CALL2051:REM <cmdline> approach. In contrast ProDOS SYS files allow for a 'startup filename'. A ProDOS filename is short than 126 chars so having exec() general cut the cmdline after 126 chars seems reasonable. If the SYS file we exec() allows for less we cut the cmdline further.

Our 'loader.system' SYS file however allows for an unusually 126 char long "startup filename" as it is targeted towards cc65 BIN porgrams with their 126 cmdline length.
 2015-04-26 14:09:20 +02:00
Oliver Schmidt
ae4f9336b3 Behave more like BASIC.SYSTEM and allow for argv[0]. 2015-04-19 21:59:05 +02:00
Oliver Schmidt
24e902059c Allow up 127 chars of cmdline for programs started by the loader. 2015-04-19 21:17:46 +02:00
Stephan Mühlstrasser
7fb206e381 Macro-based implementation of screen layout configuration modules. 2015-03-23 19:02:45 +01:00
Stephan Mühlstrasser
8b10534429 Improved fix with suggestions by Greg King. 2015-03-15 00:40:42 +01:00
Stephan Mühlstrasser
4836cf9842 Fix bad tabbing 2015-03-14 00:06:00 +01:00
Stephan Mühlstrasser
72a9e331e3 Fixed uninitialized use of low byte of address "load". 2015-03-14 00:01:12 +01:00
Greg King
38231a5cc6 Made _afailed() and uncompress() be fastcall functions. 2015-03-13 07:35:47 -04:00
Greg King
66d79da3c2 Made cbm_load() be a fastcall function. 2015-03-13 05:46:40 -04:00
Greg King
a798b1d648 Made __fastcall__ be the default calling convention for non-variadic functions. 2015-03-10 05:53:52 -04:00
Greg King
9dbce378fe Described how to change the boot loader's actions. 2015-03-08 10:06:00 -04:00
Greg King
2d50267bd8 Added a second OSI C1P program file format. 
Unlike the first format, the new format is already loadable; it doesn't need to be converted.
 2015-03-07 16:39:44 -05:00
Stephan Mühlstrasser
981ab10fac Replaced magic numbers with symbolic constants. 2015-03-01 20:53:57 +01:00
Stephan Mühlstrasser
1d6aa84d9a Optimization by replacing absolute with relative jump. 2015-02-28 20:29:08 +01:00
Stephan Mühlstrasser
4737ad93d5 Temporarily undo the 25 line change. 
This is not yet consistent with the first visible character on
the screen.
 2015-02-25 23:50:02 +01:00
Stephan Mühlstrasser
52865410d2 Fix wrong expression for top of C stack. 
Thanks to Greg King for this fix.
 2015-02-25 23:48:57 +01:00
Stephan Mühlstrasser
8deeb2c59e Match screen dimensions as in BASIC. 
Experiments show that under BASIC by default
25 rows by 24 columns are used. 24 columns is
also the width that is fully displayed on a real
C1P on the monitor. conio now matches that now.
 2015-02-23 23:07:00 +01:00
Stephan Mühlstrasser
772a98d1ec Merge branch 'c1p_kbhit' into c1p_scrsize 2015-02-23 19:17:54 +01:00
Stephan Mühlstrasser
83f16425c9 Loading A once before the loop is sufficient. 2015-02-23 19:17:27 +01:00
Stephan Mühlstrasser
cc2dc578fe Merge branch 'c1p_kbhit' into c1p_scrsize 2015-02-23 19:11:50 +01:00
Stephan Mühlstrasser
73ae95bd1c Clear bottom line when scrolling. 
Fix provided by Jeff Tranter.
 2015-02-23 19:06:22 +01:00
Stephan Mühlstrasser
c3b014560e Consistent naming for screen dimension constants. 2015-02-22 19:55:19 +01:00
Stephan Mühlstrasser
a7dabcda47 Define the screen dimension defines in a more meaningful way. 2015-02-22 16:27:13 +01:00
Stephan Mühlstrasser
965aded1ba Merge branch 'c1p_kbhit' into c1p 2015-02-22 11:45:02 +01:00
Stephan Mühlstrasser
7a975fa182 Mask control keys from first keyboard scan row. 2015-02-21 22:52:01 +01:00
Stephan Mühlstrasser
1b9aa7c6f3 Use character constants where appropriate. 2015-02-21 20:53:16 +01:00
Stephan Mühlstrasser
222668c016 Implemented a one-character buffer for kbhit() and cgetc(). 
If kbhit() detects that a key is pressed, it fetches and
buffers the character. If cgetc() detects a buffered character,
this one is returned instead of fetching one with the PROM
routine.
 2015-02-21 20:24:58 +01:00
Stephan Mühlstrasser
b1969ac16a kbhit() function and scrolling. 
Patch provided by Jeff Tranter.
 2015-02-19 22:19:21 +01:00
Oliver Schmidt
cbb6f82b99 Merge pull request #146 from smuehlst/c1p 
Add target "osic1p" for Ohio Scientific Challenger 1P
 2015-02-18 20:17:03 +01:00
Stephan Mühlstrasser
92e75e9df8 Incorporated another round of feedback for pull request. 
Adjusted comment formatting in several assembler files.
Removed dummy kbhit() function, as it's better to get a linker
error than an implementation that does the wrong thing.
 2015-02-18 18:38:42 +01:00
Oliver Schmidt
3ed3e98ec7 Moved interrupt enabling to the interrupt constructor. 2015-02-16 15:43:08 +01:00
Stephan Mühlstrasser
e178a33d29 Fix high byte of return value, optimized. 2015-02-13 19:53:02 +01:00
Stephan Mühlstrasser
88df129215 Add dummy kbhit(), remove redundant documentation for cgetc(). 2015-02-12 22:54:21 +01:00
Stephan Mühlstrasser
3601c3fb9b Include "extzp.inc" instead of using direct imports of symbols. 2015-02-12 22:12:51 +01:00