Codes
Description
2Ah
The monochrome and color modes have been set. Toggling parity before
the optional video ROM test.
2Bh
Finished toggling parity. Passing control for required configuration before
optional video ROM check.
2Ch
Processing before video ROM control is done. Searching for optional
video ROM and passing control to this ROM, if present.
2Dh
Optional video ROM control is done. Passing control to do any processing
after video ROM returns control to POST.
2Eh
Return from processing after the video ROM control. IfEGA or VGA
video is not found, will do the display memory Read/Write test.
2Fh
EGANGA not found. Next, displaying the memory Read/Write test.
30h
The memory Read/Write test passed. Searching for retrace checking next.
3 1 h
Display memory R!W test or retrace checking failed. Performing the
alternate display memory Read/Write test next.
32h
The alternate display memory Read/Write test passed. Searching for
alternate display retrace checking next.
34h
Video display checking over. The display mode will be set next.
37h
Display mode set. Display the power on message.
39h
New cursor position read and saved. Displaying the
Hit <DEL>
message
next.
3Bh
The
Hit <DEL>
message has been displayed. The virtual mode memory
test is next.
40h
Preparing the descriptor tables next.
42h
The descriptor tables have been prepared. Entering virtual mode for the
memory test next.
43h
Entered virtual mode. Enabling interrupts for diagnostics mode next.
44h
Interrupts enabled (if the diagnostics switch is no). Initializing data to
check memory wrap at O:Oh.
45h
Data initialized. Checking for memory wraparound at O:Oh and finding
the total system memory size.
46h
Memory wraparound test done. Memory size calculation over. Writing
patterns in memory to test memory next.
47h
Pattern to be tested written in extended memory. Write patterns in base
640K.B memory.
User's Manual 59
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