| Chase H.Q. | Routines |
| Prev: A579 | Up: Map | Next: A623 |
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Used by the routines at main_loop and cpu_driver.
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| cycle_counters | A60E | LD HL,$A234 | Cycle counter_A 0-1-2-3 | |
| A611 | LD A,(HL) | |||
| A612 | INC A | |||
| A613 | AND $03 | |||
| A615 | LD (HL),A | |||
| A616 | INC HL | Cycle counter_B 0-1 | ||
| A617 | LD A,(HL) | |||
| A618 | XOR $01 | |||
| A61A | LD (HL),A | |||
| A61B | RET Z | Return if it's zero | ||
| A61C | INC HL | Cycle counter_C 0-1-2-3 at half rate | ||
| A61D | LD A,(HL) | |||
| A61E | INC A | |||
| A61F | AND $03 | |||
| A621 | LD (HL),A | |||
| A622 | RET | Return | ||
| Prev: A579 | Up: Map | Next: A623 |