User`s guide

1.1 Banked and Nonbanked Memory Organization
The memory organization for a nonbanked CP/M 3 system is very simple, as shown in Figure
1-1.
Figure 1-1. Nonbanked System Memory Organization
In the nonbanked organization, physical memory consists of a single, contiguous
region addressable from OOOOH up to a maximum of OFFFFH (64K-1). The shaded
region below the operating system represents the memory space available for the
loading and execution of transient programs. The clear area above the operating
system represents space that GENCPM can allocate to the operating system for disk
record buffers and directory hash tables, as described in the CP/M Plus (CP/M Ver-
sion 3) Operating System System Guide. The minimum size of this area is determined
by the specific hardware requirements of the host microcomputer system.
1-2
1.1 Baked/Nonbanked Organization CP/M 3 Programmer's Guide