Download FLEX Advanced Programmer`s Manual

CONTENTS
I. Introduction
II. Disk Operating System
DOS Memory Map
User Callable Routines
User Written Commands
Disk Resident Commands
Comments about Commands
Examples of DOS Calls
1
3
3
8
16
17
18
19
III. File Management System
File Control Blocks
FMS Entry Points
FMS Global Variables
Random Files
Error Numbers
21
22
26
27
37
38
IV. Disk Drivers
41
V. Disk Structures
Diskette Initialization
Directory Sectors
Data Sectors
Binary Files
Text Files
43
43
44
44
45
46
VI. Writing Utility Commands
Example Program
47
49
VII. The DOS LINK Utility
49
VIII. Printer Routines
The P Utility
53
54
IX. General Information
Interrupts in Flex
System Memory Map
57
57
57
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