Apex PDT Technical Reference Manual
3 Hardware Configuration
COAM30002
Rev. 2.00
8/13/02
3-19
Function 55h, Service 09h –
Get Screen Contrast
Input:
ah = 55h
al = 09h
Returns:
Carry Flag clear if successful
ax = current setting (0 to 63)
Carry Flag set on error
Notes:
This function retrieves the current contrast setting for the
Apex PDT Display.
Function 55h, Service 0Ah –
Set Screen Contrast
Input:
ah = 55h
al = 0Ah
bx = contrast setting (0 to 63)
Returns:
Carry Flag clear if successful
ax = current setting (after change)
Carry Flag set on error
Notes:
This function is used to set the Apex PDT Display
contrast.
Function 55h, Service 0Bh –
Contrast Darker
Input:
ah = 55h
al = 0Bh
Returns:
Carry Flag clear if successful
ax = current setting (after change)
Carry Flag set on error
Notes:
This function increases the Apex PDT Display contrast
setting by one step.
Function 55h, Service 0Ch –
Contrast Lighter
Input:
ah = 55h
al = 0Ch
Returns:
Carry Flag clear if successful
ax = current setting (after change)
Carry Flag set on error
Notes:
This function decreases the Apex PDT Display contrast
setting by one step.
Summary of Contents for Apex III
Page 2: ...This Page Intentionally Left Blank...
Page 12: ...Apex PDT Technical Reference Manual Table Of Contents COAM30002 Rev 2 00 8 13 02 viii...
Page 108: ...Apex PDT Technical Reference Manual 6 Utility Programs COAM30002 Rev 2 00 8 13 02 6 36...
Page 152: ...Apex PDT Technical Reference Manual 10 Power Management COAM30002 Rev 2 00 8 13 02 10 8...
Page 166: ...Apex III Technical Reference Manual Appendix A COAM30002 Rev 1 03 08 13 02 A 6...
Page 167: ...This Page Intentionally Left Blank...