Specifications

D:\D\inter61a\INTERRUP.A Saturday, January 08, 2011 11:31 AM
AX = 5F03h
BH = 00h (get default memory clock)
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
BL = clock speed in MHz
SeeAlso: AX=5F02h"64300",AX=5F04h"64300"
--------V-105F03BL01-------------------------
INT 10 - Chips & Technologies Extended BIOS - SET POWER-ON EMULATION MODE
AX = 5F03h
BL = 01h
CL = emulation mode (see #00181)
CH = permanence
bit 7 persistence (0 reset on next boot, 1 until changed)
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
SeeAlso: AX=5F02h,AX=5F03h/BL=00h"Chips",AX=5F90h
--------V-105F04-----------------------------
INT 10 - Chips & Technologies '64300' BIOS - GET REFRESH RATE
AX = 5F04h
BL = video mode number
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
BH = available refresh rates (see #00182)
BL = currently-set refresh rate (see #00182)
SeeAlso: AX=5F03h"64300",AX=5F05h"64300"
Bitfields for C&T 64300 refresh rates:
Bit(s) Description (Table 00182)
5 75 Hz
4 72 Hz
3 70 Hz
2 60 Hz
1 56 Hz
0 interlaced
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