Commit Graph

36 Commits

Author SHA1 Message Date
Irmen de Jong
928611eb20 Got rid of problematic attempts to save status register after function calls. If you really need it (for instance for if_XX instructions) it's probably better to use a short asmsub wrapper.
For function calls, register saves go via stack (to allow nested saves) for simpler cases, registers are saved in a local variable.
Fixed too agressive removal of sta-lda sequence if the lda is followed by a branching instruction.
Insert missing cmp #0 after functioncall if the value of the A register is needed in a comparison expression (could otherwise test wrong status flag)
2020-12-22 03:35:00 +01:00
Irmen de Jong
f1d55c688a cx16 registers should come first in subroutine arg list 2020-12-22 00:59:07 +01:00
Irmen de Jong
950bc4b937 cx16 virtual registers R0-R15 also available on C64 target (although in a different location in memory) 2020-12-21 21:04:29 +01:00
Irmen de Jong
dcb81e6bea adding CommanderX16 virtual registers language support, rewrite cx16 examples 2020-12-21 20:38:00 +01:00
Irmen de Jong
c39fc4010d textio.clear_screen() now uses kernal routine to clear the text screen, this also resets the cursor to top left. 2020-12-14 14:28:53 +01:00
Irmen de Jong
e221d674d9 pcxviewer done 2020-12-13 01:32:03 +01:00
Irmen de Jong
251f947293 fixed parameter signature for FB_set_8_pixels_opaque() (docs are wrong) 2020-12-12 03:32:01 +01:00
Irmen de Jong
1d299c56e0 fix float '**' (pow) on cx16 2020-12-10 22:19:07 +01:00
Irmen de Jong
0d735c2ccc workaround for FB_set_pixels bug 2020-12-10 21:51:32 +01:00
Irmen de Jong
00071d53d5 optimized disc (filled circle) drawing on c64, fixed off by 1 disc width in cx16 version 2020-12-06 00:33:32 +01:00
Irmen de Jong
6902834568 remove dummy argument for txt.scroll_XXXX() functions on cx16 2020-12-06 00:19:47 +01:00
Irmen de Jong
fa2d87f3dd optimized disc (filled circle) drawing on cx16 2020-12-06 00:01:19 +01:00
Irmen de Jong
6f74fb49bd added c64colors module. added vpeek/vpoke to cx16 syslib. koalaviewer example now uses better c64 color palette. 2020-12-03 18:14:49 +01:00
Irmen de Jong
510ca042c9 stack tested for most example programs 2020-11-22 18:35:43 +01:00
Irmen de Jong
d0bd2f522c rol and ror 2020-11-07 00:56:54 +01:00
Irmen de Jong
7626c9fff7 only allow array indexing via a number, or a variable (eliminate complex expression calcs for array indexing, force explicit use of an index variable) 2020-10-17 19:57:55 +02:00
Irmen de Jong
095c8b2309 corrected name and added cx16logo library module for fun 2020-10-15 00:58:41 +02:00
Irmen de Jong
b759d5e06a fixed X register corruption on Cx16 verions of float.GIVUAYFAY and GIVAYFAY 2020-10-11 17:46:19 +02:00
Irmen de Jong
f8b04a6357 added status return flags to some kernel i/o operations 2020-10-05 19:48:21 +02:00
Irmen de Jong
e83e021541 doc 2020-10-02 23:31:49 +02:00
Irmen de Jong
b93d9ecd7e memtop cx16 2020-09-23 02:34:49 +02:00
Irmen de Jong
af6731c9c8 preparing version 4.3 2020-09-22 21:50:56 +02:00
Irmen de Jong
9389791d91 created own circle and disc subroutines for cx16 because its rom routine is not yet implemented and just does a BRK 2020-09-22 02:52:09 +02:00
Irmen de Jong
aa8191d0a1 introduced graphics module wrapper for cx16 to make even more programs compatible 2020-09-22 02:21:16 +02:00
Irmen de Jong
0d5c78e875 introduced graphics module wrapper for cx16 to make even more programs compatible 2020-09-22 02:12:01 +02:00
Irmen de Jong
d1d224b7fc fixed print_f on cx16. Some more examples are now multi-platform. 2020-09-22 01:34:05 +02:00
Irmen de Jong
ffa38955d6 improved scroll_down and scroll_up to use VERA dual data ports instead of a copybuffer 2020-09-22 00:34:43 +02:00
Irmen de Jong
8d82fb6d8f added cx16 txt.scroll_right 2020-09-22 00:00:22 +02:00
Irmen de Jong
306770331a added cx16 txt.scroll_left 2020-09-21 23:39:25 +02:00
Irmen de Jong
d3f433c8cf specify VERA data port to use 2020-09-21 23:04:01 +02:00
Irmen de Jong
cf49cbd1f8 more consistent about the system reset routine 2020-09-21 22:35:07 +02:00
Irmen de Jong
8a99e75299 added cx16 txt.scroll_down 2020-09-21 22:06:48 +02:00
Irmen de Jong
2dbf849c82 added cx16 txt.scroll_up 2020-09-21 21:39:36 +02:00
Irmen de Jong
ba3dce0b4c optimized cx16 txt screen functions to use VERA autoincrement 2020-09-21 19:30:21 +02:00
Irmen de Jong
ca9588380a added cx16 txt.clear_screencolors 2020-09-21 18:42:28 +02:00
Irmen de Jong
de06353194 auto select correct library to import based on target, instead of having c64- and cx16- prefix variants
some programs are now 100% source compatible between C64 and Cx16 targets!
import libraries have been rena;med
2020-09-21 00:50:09 +02:00