*** ;* pctl: equ $36 ; PLL Control Register PLLIE: equ 7 ; PLL interrupt enable bit PLLF: equ 6 ; PLL interrupt flag bit PLLON: equ 5 ; PLL on bit BCS: equ 4 ; base clock select bit PRE1: equ 3 ; prescaler PRE0: equ 2 ; program bits VPR1: equ 1 ; VCO power-of-tw...