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/**
* @file
* Serial Port Driver for COM1
*
* https://wiki.osdev.org/Serial_Ports
*
* Call serial_init() once before reading and writing with serial_read()
* and serial_write(). Note that reading and writing might block.
*/
/** Initialize COM1 **/
void serial_init();
/** read one byte from COM1 (blocking) **/
char serial_read();
/** write one byte from COM1 (blocking) **/
void serial_write(char a);
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