CosmOS
> loaded, starting at 4000
> two stops, and what the registers were at each
break at 4016
A 11 B 22 Q 00 status 00 
DP0 2030 DP1 2000 DP2 2037 DP3 4000 SP FFFF
press a key 
break at 4033
A 44 B 55 Q 00 status 00 
DP0 2000 DP1 2037 DP2 2030 DP3 4000 SP FFF5
press a key 
carried on to the end
finished
> halted
Execution halted.
[exit 0]