POST BIOS
C-1
C
POST BIOS
C.1 Introduction
This section contains a listing of the POST BIOS calls for the Extensa 900 Series
Notebook.
;----------------------------------------------------------------------------
; Make sure we entered POST in real mode
; Determine the CPU type
; Convert all segment limits to 4GB
;----------------------------------------------------------------------------
002H
post Verify Real Mode
004H
cpu Get Type J
006H
post Hardware Initialize
024H
postSetHugeESJ
;----------------------------------------------------------------------------
; Initialize the chipset
; Set the in-POST flag
; Autosize the RAM
; Clear the base RAM
; Test the base RAM
; Autosize the cache
; Shadow the BIOS
;----------------------------------------------------------------------------
008H
cs Initialize
011H
post Reg Initialize J
00EH io Initialize OPTIONAL
00CH cache Initialize
016H
post Checksum Test
018H
post Timer Init
017H
cache Pre Ram Auto size, OPTIONAL
028H
cs Ram Auto size
03AH cache Auto size
02AH post Zero Base Ram
02CH post Real Address Test
030H
post Base Ram Test
02FH cache Pre Sys Shadow OPTIONAL
038H
cs System Shadow Config
020H
post Refresh Test, FAR
009H
post Set In Post Flag, FAR
;----------------------------------------------------------------------------
; Initialize all the hardware to a known state
;----------------------------------------------------------------------------
00AH cpu Initialize
00BH cpu Cache On
00FH fdiskInitializeJ
010H
pmInitializeJ, OPTIONAL
;----------------------------------------------------------------------------
; Perform hardware tests, and further initialization
;----------------------------------------------------------------------------
014H
post I8742 Init, FAR
Summary of Contents for Extensa 900 Series
Page 1: ...Maintenance Manual ExtensaTM 900 Series Notebook Computers 9813715 0001 December 1996 ...
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Page 138: ...A 2 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 1 of 30 ...
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Page 148: ...A 12 Notebook Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 11 of 23 ...
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Page 171: ...MPB Schematic Diagrams B 3 Figure B 1 MPB CPU Board Logic Diagrams Sheet 2 of 3 ...
Page 176: ...B 8 MPB Schematic Diagrams Figure B 3 MPB Main Board Motherboard Logic Diagrams Sheet 3 of 10 ...
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