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IBM PC CONVERTIBLE Technical Reference
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Contents
Table of Contents
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Table of Contents
Table of Contents
Section 1. Power-On Self-Test (POST)
Power-On Self-Test Sequence
Modem Presence Test
Printer/Communications Presence Test
Section 2. Rom BIOS Listing
ROM Map
Rommap
Common Equates and Data Areas
Common Equates
POST and Bootstrap Temporary Stack
Processor Interrupt Vector Area
BIOS Data Areas
POST Temporary Data Area
Common Macros
Nonmaskable Interrupt Handler (B 10NMIH)
First Level Interrupt Handler (NMLFLIH)
Nonmaskable Interrupt Handler (Blonmih)
Keyboard Clear NMI (KYBD_CLR)
Translate Scan Code (KYBD_XLT)
Real-Time Clock NMI (RTCALARM_NMI)
Low Battery Check (LOW_BAT
Suspend NMI (SUSPEND)
Resume (RESUME)
Keyboard Interrupt Hex 16 (KYBD_IO)
Levell Interrupt Hex 9 (KYBD_INT9)
Video I/O and Print Screen (B12VIDEO)
Video I/O and Print Screen (BI2VIDEO)
Diskette Support (B13DSKT)
Communications and Printer BIOS (B14COMMO)
Time of Day (B15TOD)
System Services (B16SYSV)
General Subroutines and Tables (B17TABLE)
Release Date Marker
System Model Byte
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