ROM-DOS Commands 181
E-EQ-MX1RG-D MX1 Reference Guide
MEM.EXE
External Command
The MEM command displays the used and free memory in your system.
Syntax
MEM [/BiosExtensions] [/Classify] [/Raw]
Remarks
Options Description
/B Displays each BIOS extension and its size.
/C Classifies the memory usage.
/R Does raw dump of the MCB chain.
MEM displays a list of the DOS memory contents, what free space is available, and how much
memory is in conventional memory, upper memory, the HMA and extended memory. This
program is useful to fine tune the system to have as much free memory as possible for
applications.
Options
The /B option displays BIOS extensions in the range from C000:0 to F800:0.
The /C option shows program, TSR, and device driver sizes.
The /R option shows a low-level DOS listing of MCBs (Memory Control Blocks).
MODE.COM
External Command
The MODE command modifies the operation of the printer, serial port, and active video display.
Syntax
MODE LPT#[:]=COM#[:]
MODE COM#:baud[,parity[,databits[,stopbits[,P]]]]
MODE <video mode>
MODE <display lines>
Remarks
The first syntax above redirects line printer output to the serial port.
The second syntax above changes the operation of the specified communications port. The options
that can be modified are listed below. InValid for any of the options are flagged with an error
message.
baud 110, 150, 300, 600, 1200, 2400, 4800, 9600
parity N - None, O - Odd, E - Even
databits Either 7 or 8
stopbits Either 1 or 2 stop bits
P Printer Port
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