default_brk_handler: // Implemented according to Compute's Mapping the Commodore 64, pages 73-74 sei // disable IRQs, to be sure they won't interfere ldx #$00 sta VIC_SCROLX // turn the display off - we want as little screen artifacts as possible cld // make sure this dangerous flag is disabled jsr JRESTOR jsr JIOINIT jsr cint_brk cli jmp (IBASIC_WARM_START)