+ // 75Hz CDC update
+ if ((Pico_mcd->m.counter75hz+=10) >= counter75hz_lim) {
+ Pico_mcd->m.counter75hz -= counter75hz_lim;
+ Check_CD_Command();
+ }
+
+ // update timers
+ counter_timer = Pico.m.pal ? 0x21630 : 0x2121c; // 136752 : 135708;
+ Pico_mcd->m.timer_stopwatch += counter_timer;
+ if ((int3_set = Pico_mcd->s68k_regs[0x31])) {
+ Pico_mcd->m.timer_int3 -= counter_timer;
+ if (Pico_mcd->m.timer_int3 < 0) {
+ if (Pico_mcd->s68k_regs[0x33] & (1<<3)) {
+ dprintf("s68k: timer irq 3");
+ SekInterruptS68k(3);
+ Pico_mcd->m.timer_int3 += int3_set << 16;
+ }
+ // is this really what happens if irq3 is masked out?
+ Pico_mcd->m.timer_int3 &= 0xffffff;
+ }
+ }
+
+ // update gfx chip
+ if (Pico_mcd->rot_comp.Reg_58 & 0x8000)
+ gfx_cd_update();
+}