ColecoVision Donkey Kong Game Timer Questions

[ColecoFan1981]

I would like to know what I can do to make sure the timer on the 16K ROM of the ColecoVision Donkey Kong never goes beyond 99000 points, which if unedited will result in Mario instantly losing a life due to the timer reading nothing (00000 points). On the 16K ROM version, anyone who has managed to get to Level 96 (without losing all Marios) will never make Level 97.

 

Thus, what should I change in the ROM so that the timer never goes beyond 99,000 points (the earlier 24K ROM version of the game never reads beyond 8000 points)? I'd like to know what to change so that the arguments are thus:

Is the level greater than 96? (60 hex) (you know, is A>=61H (97 decimal)?)

If not, then compute bonus normally.

If it is, then set A=60H (96 decimal).

 

On the 24K ROM version, as I said before, the timer never goes beyond 8000 points. The following arguments would be:

Is the timer value greater than 80? (50 hex) (you know, is A>=51H (81 decimal)?)

If not, then skip ahead to HL value (whatever it is)

Yes, then A=50H (80 decimal).

 

I'd like to change this so the timer stays at 9000 points, in which the following arguments are:

Is the level greater than 6? (06 hex) (is A>=07H?)

If not, then compute bonus normally.

If yes, then set A=06H.

 

Thank you,

 

 

 

Ben