Routines
Prev: 02EB Up: Map Next: 0354
034B: Increment Pair
Used by the routine at HandleInterrupt.
Add one to two addresses DE bytes apart. Used to tick both keyboard-state timers.
Input
HL First address
DE Distance to the second address
IncrementPair 034B PUSH HL Stash the first address on the stack.
034C LD B,$02 Set the update counter to 02.
IncrementPair_Loop 034E INC (HL) Add one to this timer and move to the next.
034F ADD HL,DE
0350 DJNZ IncrementPair_Loop Decrease the counter and loop back to IncrementPair_Loop until both timers are updated.
0352 POP HL Restore the first address from the stack.
0353 RET Return.
Prev: 02EB Up: Map Next: 0354