Appendix
B
KEYBOARD AND CHARACTER CODE
CHARTS
Keyboard ASCIIiScan Codes
The first table in this appendix lists the keys on the Tandy 1000
keyboard in scan code order, along with the ASCII codes they
generate.
For
each key, the following entries are given:
Scan Code
-
A value in the range 01H-5AH which uniquely
identifies the physical key on the keyboard that is pressed.
Keyboard Legend
-
The physical marking(s) on the key. If
there is more than one marking, the upper one is listed
first.
ASCII Code
-
The ASCII codes associated with the key. The
four modes are:
Normal
-
The normal ASCII value (returned when only
the indicated key is depressed).
SHIFT
-
The shifted ASCII value (returned when SHIFT
is also depressed).
CTRL
-
The control ASCII value (returned when CTRL is
also depressed.)
ALT
-
The alternate ASCII value (returned when ALT is
also depressed).
Remarks
-
Any remarks
or
special functions.
The following special symbols appear in the table:
Values preceded by an
“x”
are extended ASCII codes
(codes preceded by an ASCII
NUL,
00).
No
ASCII code is generated.
x
-
*
No
ASCII code is generated, but the special function
described in the Remarks column is performed.
379
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