Appendix A
22
keyboard, keyboard ID and number
(9E)Enable hardware interrupts.(Beep)=3
(9F)Extended keyboard check is done, ID flag set. num
(9F)Determine number at ATA and SCSI drives.
(A0)Keyboard ID command issued. Keyboard ID flag to be reset.
(A0)Start of diskette tests.
(A0)Set time of day .(Beep)=3
(A1)Keyboard ID flag reset. Cache memory test to follow.
(A2)Cache memory test over. Going to display any soft errors.
(A2)FDC reset inactive(3F8H bit 2)
(A2)Check key lock.(Beep)=3
(A3)Soft error display complete. Going to se
t the keyboard type matric rate.
(A4)Keyboard type matric rate set. Going to program memory wait states.
(A4)Initialize Type matric rate.
mory wait states programming over. Going to clear the screen and enable
(A6)Screen cleared. Going to enable parity and NMI.
rity enabled. Going to do any Initialization required before giving
control to optional ROM at E000.
(A8)Initialization before E000 ROM control over. E000 ROM to get control next.
(A8)Start of determine drive type.
A8)Erase F2 prompt.(Beep)3
(A9)Returned from E000 ROM control. Going to do any init required after E000
(A9)Seek operation initiated.
(AA)Initialization after E000 optional R
OM control is over. Going to display the
(AA)Waiting for FDC status.
(AA)Scan for F2 key stroke.(Beep)=3
(AF)diskette tests complete.
(B0)System configuration is displayed. Going to un
(B0)Spurious interrupt occurred in protect mode. Check mismatch memory.
(B0)Start of fixed drive tests.
(B0)Check for errors.(Beep)=3
1.Unknown interrupt occurred.
compressing of SETUP code is complete. Going to copy any code to
(B1)If unmasked NMI occurs, Press
F1 to disable NMI,F2 to boot.
(B1)Combo board not found, exit.
(B2)Combo controller failed, exit.
prepare to boot operating system.(Beep)=3
(B4)One short beep before boot.(Beep)=3
(B5)Drive error(error condition).
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