Category: video
INT 10 - Chips & Technologies '65530' BIOS - SET CLOCK AX = 5F02h BH = what to set 02h dot clock BL = new clock speed (see #00180) 03h memory clock BL = new clock speed (see #00180) 04h set power-down register BL = new value for power-down register (bits 3-0 only) 06h (404 clock chip) set control register BL = new vlaue for control register (bits 5-0 only) 06h (404A/B/B-ES clock chips) set control register PWRDN1 BL = new value for control register 07h (404A/B/B-ES clock chips) set control register PWRDN1 BL = new value for control register FFh default dot and memory clocks Return: AL = 5Fh if function supported AH = status 00h unsuccessful 01h successful SeeAlso: AX=5F01h,AX=5F02h"64300",AX=5FA0h,#00184