IBM 5150 - Page 13

Keyboard Encoding and Usage ................... 3-11
Encoding
........................................ 3-11
Character Codes
.................................. 3-11
Extended Codes .................................. 3-13
Extended Functions
............................ 3-13
Shift States
.................................... 3-14
Shift Key Priorities
............................. 3-15
Special Handling
................................. 3-15
System Reset .................................. 3-15
Break
......................................... 3-16
Pause
......................................... 3-16
Print Screen
................................... 3-16
Keyboard Usage .................................. 3-17
BASIC Screen Editor Special Functions
............. 3-19
DOS Special Functions ........................... 3-19
Low
Memory Maps .............................. 3-21
0-7F Interrupt Vectors ............................ 3-21
BASIC and
DOS Reserved Interrupts (80-3FF) ...... 3-22
Reserved Memory Locations
(400-5FF) ............. 3-22
BASIC Workspace Variables ...................... 3-23
APPENDICES .................................. A-O
Appendix A: ROM BIOS Listing ................. A-I
Appendix B: Assembly Instruction Set Reference ... B-1
Appendix C: Of Characters Keystrokes and Color .... C-l
Appendix D: Logic Diagrams ..................... D-l
Appendix E: Unit Specifications .................. E-l
Glossary ......................................... G-l
Bibliography .................................... Bib-l
Index ........................................... 1-1
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