sam/z80uPC - Microcomputer based on the Z80 processor

	Commit message (Collapse)	Author	Age	Files	Lines
*	add serial interface and a few std library functions	Nao Pross	2017-06-02	1	-0/+149
	changes in usart: - new functions to setup the serial comunication settings such as baudrate, parity and stop bits - init function with most common values - transmit and receive functions each with a wrapper to send data blocks changes in libc: - new file stdio.c with basic implementation of putch, printf still a prototype - new file string.c with memcpy() function