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2-3 MS-DOS
1) Memory map
The MS-DOS memory is mapped as illustrated below.
BIOS, IDeS and SYSINIT are linked on the HP in their
given order and comprise 10 SYS.
Interrupt Vector
Table
40H:O
BIOS
(Device Driverl
10SYS
r--- -.- - -- -----
IOes
(Code section)
xx:o
loeS
MSDOS
t
x
:
o
SYS
(Data section)
MSDOS
2) MS-DOS
commands
(a) Disk control commands
Command
In/Out
Function
name
CHKDSK
Out
Analysis the directory and FAT and checks
the state of the disk.
DISKCOPY
Out
Duplication of a whole disk contents
FORMAT
Out
Disk initialization. volume label write.
system file copy. etc.
VOl
In
Display of volume label
(b) Directory and file control commands
Command
In/Out
Function
name
CHDIR
In
Changing or displaying the current
directory contents
COpy
In
Duplication of the specified file
DEL
In
Deletion of the specified file
DIR
In
Displaying of the directory
MKDIR
In
Creation of directory
PATH
In
Providing the pass to trace the command
RECOVER
Out
Recovery of the file or directory
REN
In
Changing the file name
RMDIR
In
Deleting the directory
FC
Out
Comparison of two files
TYPE
in
Displaying of the contents of the specified
file
(c) System operating commands
Command
In/Out
Function
name
BREAK
In
Changing the break interrupt check range
ClS
In
Clear of the screen
CTTY
In
Change of i/o device
DATE
In
Display or set of the date
EXIT
in
Return to the program which initiated the
command
FIND
Out
Search of the character string
3) Logical drive map
logical drive
A
I
B
C i D
E
I
F
I
G
I
H
Device
MFD
HD
SFD
Physical drive
o
1
1
0
0
I
1
I
2
I
3
-
M Z-5600
MORE
Out
Output of screen one at a time
PRINT
Out
Printer output from the background
PROMPT
In
Setting command prompt
SET
In
Changing the value of the character string
SORT
Out
Rearranging the data in the alphabetical
order or reverse alphabetical order
TIME
In
Display or setup of the time
VER
In
Displaying of the MS-DOS version number
VERIFY
In
Verifying the disk contents
(d) Program developing commands
Command
In/Out
Funcition
name
EXE2BIN
Out
Changing the EXE file to the COM file
EDLlN
Out
Uneeditor
MASM
Out
Macro assembler
LINK
Out
Llnker
LIB
Out
Library manager
CREF
Out
Creation of cross reference
(e) Batch processing commands
Command
In/Out
Function
name
ECHO
In
Choice Is made if the command were to be
displayed during execution of the batCh
program
FOR
In
Command is repeated to execute while
substituting with the specified element
GOTO
In
Moves to the line in which the control
specified label is existing
IF
In
Executes the command when the specified
condition is true
.
PAUSE
In
Temporary halt of the batch process
REM
In
Displaying of the comment
SHIFT
In
Shifts the parameter allocations
(expanded use of parameters)
(f)
Other commands unique to the MZ-5600.
Command
In/Out
Function
name
KEY
Out
Sets or changes the definable key function
INSTALL
Out
System installation is done to the printer
and option devices
10CNF
Out
Saves BIOS parameter. assigns or deassigns
the read-after-write check to the floppy
disk. computers memory disk logical drive
number and physical drive number
MODE
Out
Input/output unit mode setup
ASSIGN
Out
Performs drive unit assignment
BKUP
Out
The contents of the hard disk is backed up
on the floppy disk
BRST
Out
The hard disk data are restored from the
beckup floppy disk
I
I
J
M
Q
I
R
MFD
MFD
2
I
3
-
0
t
Memory disk
-9-
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