d8d7f53d1b
move charset to seperate file again, added comments on charset layout
2015-10-11 17:13:28 +02:00
c4966ac6a6
Fixed stupid adressing mode bug.
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Thanks Greg for pointing out :-)
2015-10-10 11:15:43 +02:00
03c6af3e15
rewrote color voodoo
2015-10-09 23:39:37 +02:00
ccc7c2b1f9
Minor style adjustment.
2015-10-09 22:18:51 +02:00
326da85145
Consistently place constructors (and their exclusive subroutines) in "INIT".
2015-10-09 21:44:20 +02:00
575f859a03
Keep low level VIC sprite stuff out of user code.
2015-10-09 18:33:35 +02:00
8c609dd931
Explained why two variables were moved out of the BSS segment.
2015-10-09 12:00:41 -04:00
f21e3ae895
According to the contributor the prio wasn't intentionally set.
2015-10-09 13:42:25 +02:00
0b9d67d8a8
use default prio for the constructor
2015-10-09 13:40:10 +02:00
f712e9448a
some cleanup/rework
2015-10-09 13:34:23 +02:00
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
ca70700a0b
Restored the old C-stack initiation code.
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I had forgotten that the stack must be put below the CBM overlays.
2015-10-08 06:04:49 -04:00
8a880580dc
Reduced the size of the moveinit subroutine.
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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
67dabb8489
attempted fix for the color problem noticed by oliver
2015-10-06 20:18:40 +02:00
ee54f7f40c
optimized clrscr for size
2015-10-06 19:33:43 +02:00
074e10d288
Adapted, to the c64 target, the INIT-segment overlay scheme from the apple2 targets.
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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
23473641f4
fix clrscr so it doesnt wipe sprite pointers
2015-10-01 17:16:02 +02:00
5ea842b88b
SCREEN->screensize
2015-10-01 15:03:11 +02:00
6217f8fa3a
Made the Commodore version of exec() work in programs that are so big that they load into all of BASIC RAM.
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The function won't cause an "out of memory" error.
2015-09-28 11:27:39 -04:00
4949836d16
fixed kplot
2015-09-28 17:12:20 +02:00
841d764a83
some cleanup, checked usage of __bgcolor and __textcolor
2015-09-28 16:10:11 +02:00
7486923c17
dont use seperate file for charset data
2015-09-28 15:57:16 +02:00
6cc654cca8
added extra check for graphical chars
2015-09-28 15:10:57 +02:00
257183fa55
removed duplicate copy of charset and shift it at init time, saves 1k
2015-09-27 19:34:43 +02:00
c221fe22f6
prepend soft80_ to some more internally used functions
2015-09-27 19:10:06 +02:00
b5a6578dca
include bitmap and vram row tables directly rather than generating them (saves space)
2015-09-27 18:49:30 +02:00
fba28f46f6
fix initial text- and background colors
2015-09-27 18:36:53 +02:00
9e08c53b01
initial commit of soft80 implementation
2015-09-27 18:12:25 +02:00
b82bb4f5ba
Moved two errno helper functions into separate files.
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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
b2657ecef5
Merge pull request #177 from mrdudz/pcenginetarget
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new target: PC Engine (TurboGrafx16)
2015-09-24 09:58:28 +02:00
7d453a72fb
use 'plot' instead of 'PLOT'
2015-09-20 12:18:41 +02:00
296489ba6c
added interruptor support
2015-09-19 15:55:43 +02:00
859604407b
fixed more flaws found by greg :)
2015-09-19 15:37:39 +02:00
45313075fe
Merge pull request #208 from greg-king5/big-jump
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Improve the longjmp() and setjmp() functions.
2015-09-11 21:06:50 +02:00
dbf0adcec9
Improved longjmp() and setjmp().
2015-09-11 14:18:22 -04:00
031bd2ebf0
Fixed the random-seed generators for the Commodore targets.
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They use a byte from the time counter; but, it is stored in big-endian order.
2015-09-11 10:03:07 -04:00
088a25437d
fixed VDC register assignments
2015-09-07 12:55:36 +02:00
af2ba26c62
fix gregs complaints :)
2015-09-04 14:14:17 +02:00
d0a1dc73b8
Merge remote-tracking branch 'upstream/master' into pcenginetarget
2015-09-04 13:40:52 +02:00
57b8af1adc
style fixes
2015-08-29 15:58:57 +02:00
9c55bd1c96
Fixed bugs in the interface for C-level interrupt handlers.
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* 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
657cc003be
Merge pull request #184 from greg-king5/fastcall
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Update some fastcall info.
2015-07-23 17:11:49 +02:00
52eec1f236
Updated the fastcall information in a document and two Assembly files.
2015-07-22 13:31:14 -04:00
673b27cc1b
Added empty IRQ backend.
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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
0e29a0993f
Merge remote-tracking branch 'upstream/master' into pcenginetarget
2015-07-20 18:42:04 +02:00
313d2dd210
added missing chline, cvline
2015-07-19 18:06:16 +02:00
a9982de475
Added _directerrno() to the sim6502/sim65c02 libraries.
2015-07-18 18:23:08 -04:00
0b6bcb565e
Fixed a hardware-stack leak.
2015-07-17 20:36:56 -04:00
996c7b493e
moved all notes into regular documentation
2015-07-16 21:39:13 +02:00
e77060458a
fixed joypad bits
2015-07-16 20:15:05 +02:00
mrdudz
Oliver Schmidt
Greg King