From 4a7f45ee28ac0799ba1ca93fd1683f7858efc54a Mon Sep 17 00:00:00 2001 From: Nao Pross Date: Fri, 2 Jun 2017 16:22:26 +0200 Subject: add serial interface and a few std library functions 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 --- sw/z80/libc/string.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 sw/z80/libc/string.c (limited to 'sw/z80/libc/string.c') diff --git a/sw/z80/libc/string.c b/sw/z80/libc/string.c new file mode 100644 index 0000000..fd6a7ff --- /dev/null +++ b/sw/z80/libc/string.c @@ -0,0 +1,13 @@ +#include "string.h" + +void *memcpy(void *dest, void *src, size_t n) +{ + char *dp = dest; + char *sp = src; + + while (n--) { + *dp++ = *sp++; + } + + return dest; +} -- cgit v1.2.1