Radio Shack TRS-80 Model 3 - Page 87

$RSTX -- 85/X'0055'
Transmita Character to the RS-232-C Interface
If RS-232-C Wait is enabled, this routine waits until the characteris transmitted or
until (BREAK) is pressed.
If Wait is notenabled, itreturns whether or not a character is transmitted.
Entry Conditions
A = Character
Exit Conditions
Z Status = No charactersent
DE is altered.
Sample Z-80 Programming
See $RSINIT.
$SETCAS -12354/X'3042'
PromptUser to Set Cassette Baud Rate
This call repeats the first question in the Model III start-updialog. Itdisplays the
prompt:
Cass?
on the next line of the display, and waits for the operator to type "H" (high-I SOD
baud) or "L" (low-SOD) or (ENTER) (default to high).
Upon return from the call, the cassette rate is set accordingly.
EntryConditions
None
ExitConditions
All registers are altered.
SampleZ-80 Programming
See$CSHWR.
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