Radio Shack TRS-80 Model II Reference Manual page 192
Disk operating system
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Also See for TRS-80 Model II:
- User manual (236 pages) ,
- Service manual (199 pages) ,
- Trsdos & disk basic reference manual (192 pages)
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Model II TRSDOS
CLRXIT
Clear User Memory and Jump to
TRSDOS
(function code 57)
This routine zeroes user memory and transfers control to
TRSDOS READY.
Entry Conditions
A
=57
Exit Conditions
None
Keyboard
Supervisor calls described in this section*:
FUNCTION
CODE
NAME
PURPOSE
1
KBINIT
Clears stored keystrokes.
4
KBCHAR
Gets a character from keyboard.
S
KBLINE
Gets a line from keyboard.
12
VIDKEY
Display message and get line from KB.
Table 4.4. Keyboard Supervisor Calls
*YIDKEY is described later on under "Video Display."
228
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