Zilog ZUSBOPTS - Manual (Page 211)

UM017105-0511 Run-Time Library
Zilog Developer Studio II – ZNEO™
User Manual
183
Before using the kbhit function, the init_uart() function must be called to initialize
and select the UART. The default UART is _UART0.
putch
putch is a Zilog function that sends a character to the selected UART and returns an error
status.
Synopsis
#include
int putch( char ch ) ;
Returns
A zero is returned on success; a nonzero is returned on failure.
Example
char ch = 'c' ;
int err;
err = putch( ch ) ;
Before using the putch function, the init_uart() function must be called to initialize
and select the UART. The default UART is _UART0.
RI
RI (restore interrupt) is an intrinsic function that restores interrupt status. It is intended to
be paired with an earlier call to TDI() , which has previously saved the existing interrupt
status. See the TDI section on page 185 for a discussion of that function. The interrupt sta-
tus, which is passed as a parameter to RI() , consists of the Flags register extended to
16 bits for efficient stack storage. This function inline-expanded by default. If the –redu-
ceopt compiler option is selected, then this function is not inline-expanded and is instead
implemented as a regular function.
Synopsis
#include
intrinsic void RI(unsigned short istat);
Example
#include
Note:
Note: