targets: all
- avoid useless constant generation;
- fixed 32 bit to 8 bit move data under 6809 cpu;
- fixed KEY PRESS return value for pc128op;
- fixed color selection on Motorola 6847 (codo, d32, d64);
- fix thread unregistration under 6809;
- moved system routines on c128 target for rebanking reasons;
- fixed color conversion on vic2 mode 3 (c64, c128);
- fixed thread registration under 6502;
- added support for function Z() to generate zero's constant strings;
- add support for defining string sum of (string) constants;
- add support for definining IMAGES/IMAGES using constants;
- added support for SPAWN for each element of an array;
- added support for multiple arguments on SOUND command;
- add support for KILLing an array of threads.;
- fixed very first instructions in (re)SPAWN threads;
- added support for multiple identified on KILL thread;
- added error detection on parameter duplication on procedure declaration
- added support for buffer definition using simple escaped strings;
- fixed KEY PRESSED result as signed byte;