Appendix B – 102
The drives are designated as:
A:
floppy disk
B:
floppy disk
C:
BIOS socket
D: virtual disk
E:
SSD1
If your system has a hard drive, drive C: (in the example above)
becomes the hard drive and drives C–E are now designated as
D–F.
When you boot from SSD1 with ROM–DOS, the drives are desig-
nated as:
A:
floppy disk
B:
floppy disk
C:
SSD1
D: first driver in CONFIG.SYS
E:
second driver in CONFIG.SYS
Example:
In the following example of bootup messages, the system boots
from the BIOS drive with 1MB DRAM and 128K flash memory in
SSD1. The system assigns the following drive designations:
4010 MEMDRIVESYS v2.0, formatting (384KB) in extended memory as
drive D:
4010 MEMDRIVE.SYS v2.0, assigning SSD1(128 KB) as drive E:
EXTENDED MEMORY
Once you have installed 1 MB or more of DRAM in your system
you can bypass the memory driver and extend the available
memory past 640K by using the following instructions. This
assumes you are not using the extended memory for a virtual
drive.
NOTE: These instructions are written in 8086 assembly code.
Perform the following before your program accesses extended
memory:
MOV DX,387H
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