The document describes an assembly language program that uses two constants DATO1 and DATO2 to set values N1 and N2, which are then decremented in nested loops using DECFSZ instructions. It provides the values used, calculations for total time TT taken based on N1, N2 and simple operations, and compares it to the maximum time TTmax.

1. DATO1 EQU D’255’
DATO2 EQU D’26’
N1 EQU 0X20
N2 EQU 0X21
DELAY 20mS
MOVLW DATO2
MOVWF N2
LOOP2
MOVLW DATO1
MOVWF N1
LOOP1
DECFSZ N1,F
GOTO LOOP1
DECFSZ N2,F
GOTO LOOP2
RETURN
TT=3*N2*N1 + 5N2 +4
N2=25,968831
N1=255
TT=19996 us
TTmax=196354 us
196.354ms