first edition	In English
LCCN: 83- (Library of Congress) serial number: A1543	Publisher: microMethods 1983

Table of Contents

1. Introduction to RP/M	1
RCP Built-in Commands	1
User areas under RP/M	4
User area discipline	4
2. Disk File Processing	5
Disk Reservation	5
File Control Block	6
Record Block Table (RBT)	7
Open file	7
File Name Table (FNT)	7
File Extents	7
Block Mask	9
Record block reservation (RBR) table	9
Physical Disk Addresses	10
3. Creating a Disk Flaw Table	11
FLAWTBL	11
FLAWTBL Console Messages	12
Flaw tables	12
CBIOS Error Processing	13
Double Density Floppy Disks	13
An Automatic Flaw table Mechanism	14
Read Errors vs Write Errors	15
Erasing the Flaw Table	15
Summary	16
4. Example Disk Reading Operation	17
5. How to Locate RDOS	21
6. RCP Chain Processing	23
7. Batch Processing	25
Conditional Calls	35
CALL command format	37
8. Batch System Modifications	39
Modification of SUBMIT	39
SUBREN	39
XSUB Modifications	41
9. Nondismountable Disks	43
Hard Disk Vector	44
Hard Disk Vector Redefinition	44
Restore Batch Processing	45
10. Directory Access Time	47
Appendix A: RCP Assembly Listing	69
Appendix B: RDOS Assembly Listing	105