Tandy 1000 MS-DOS Reference Manual page 335

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Appendix A
ASCII AND SCAN CODES
The following table lists the keys, in scan code order, and the
ASCII codes generated by each (which depends on the shift sta-
!
tus). The entries in the table are:
• SCAN CODE - a value in the range 01H-5AH (hexadec-
imal) that uniquely describes which key is pressed.
• KEYBOARD LEGEND - the physical marking(s) on
the key. If multiple markings exist, they are listed from
top to bottom.
• NORMAL - the normal (unshifted) ASCII value
(returned when only the indicated key is pressed).
• SHIFT - the shifted ASCII value (returned when
I
SHIFT
I
is also pressed).
l _
• CTRL - the control ASCII value (returned when
CTRL
is also pressed).
• ALT - the alternate ASCII value (returned when
I
ALT
I
is
also pressed).
• REMARK - any remarks or special functions.
All numeric values in the table are expressed in hexadecimal.
Those values preceded by an x are extended ASCII codes (they
are preceded by an ASCII NUL
[=
00]).
A marking of - indicates that no ASCII code is generated. Dou-
ble asterisks
(**)
indicate that no ASCII code is generated and
that, instead, the special function described in the REMARK
column is performed.
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