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8bitworkshop/presets/c64/rasterirq.h
2023-11-11 22:01:39 -06:00

27 lines
537 B
C

#ifndef _RASTERIRQ_H
#define _RASTERIRQ_H
// internal function, use macro instead
void __dlist_setup(void* ptr);
void __dlist_done();
// initialize display list with function 'func'
#define DLIST_SETUP(func) \
__dlist_setup(((char*)func)-1)
// continue on line 'line'
#define DLIST_NEXT(line) \
__A__ = line; \
asm ("jsr DLIST_IRQ_NEXT");
// restart display list on line 'line'
#define DLIST_RESTART(line) \
__A__ = line; \
asm ("jmp DLIST_IRQ_RESTART");
// stop display list
#define DLIST_DONE() __dlist_done();
#endif