GSE 672 - Wait for Keypress

Macros
9-74 Chapter 9
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Syntax If Transmit Buffer Empty
%U
Get Number of Characters in Transmit Buffer
< comm > %U
Clear Transmit Buffer
< comm > * %U
Arguments
comm Communication port (1 → 4).
Notes
When used as an if condition, the %U command tests the port last specified by the %"
command.
See Also
%" Select Comm Port
If Transmit Buffer Empty
%U
Determines if the comm port transmit buffer currently selected by the %" command is empty.
Get Number of Characters in Transmit Buffer
< comm > %U
Copies the number of characters remaining in the specified comm port transmit buffer to the entry buffer.
Clear Transmit Buffer
< comm > *%U
Clears all remaining characters from the specified comm port transmit buffer.
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I
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F
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O
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K
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Syntax Wait for Keypress
[ prompt ] %W
Arguments
prompt Text to be displayed as a prompt on the 2X5 character matrix of the LCD.
See Also
%Y If Yes (Enter)
Wait for Keypress
2%"%U
Determines if the transmit buffer on comm 2 is
empty.
1%U
Copies the number of characters remaining in the
comm port 1 transmit buffer to the entry buffer.
1%U
Copies the number of characters remaining in the
comm port 1 transmit buffer to the entry buffer.