NEC CP/M-86 User Manual

Contents
Page
PREFACE........................................................ lX
Chapter 1 CP/M-86 System Overview
CP/M-86 GENERAL CHARACTERISTICS. .
.. . .. . . . . . . . .. . . . . . . .... 1-1
CP/M-80 AND CP/M-86 DIFFERENCES............................ 1-4
Relocatable Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-4
Memory Models. ... . . .. . . . . .. . . ... . . . . .. . .. . . . . . .. ... . . . . . .... 1-4
Disk Definition Tables ......................................... 1-5
Bootstrap Operation ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
BDOS Calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-5
Addressing ................................................... 1-5
Program Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. 1-6
Chapter 2 Command Setup and Execution Under CP/M -86
CCP BUILT-IN AND TRANSIENT COMMANDS.................... 2-1
TRANSIENT PROGRAM EXECUTION MODELS ................... 2-2
The 8080 Memory Model. . . . . . .. .... . . . .. . .. . . . . . . . ... . . . . . . ... 2-3
The Small Memory Model ...................................... 2-5
The Compact Memory Model ................................... 2-6
Base Page Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 2- 7
TRANSIENT PROGRAM
LOAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-9
TRANSIENT PROGRAM EXIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-9
Chapter 3 Command (CMD) File Generation
INTEL
8086 HEX FILE FORMAT.................................. 3-1
OPERATION OF GENCMD ....................................... 3-3
COMMAND FILE FORMAT ....................................... 3-6
iii

NEC CP/M-86 Specifications

General

Brand	NEC
Model	CP/M-86
Category	Desktop
Language	English