基本内容

函数名: bioscom

功 能: 串行I/O通信

用 法: int bioscom(int cmd, char abyte, int port);

程序例:

#include <bios.h>

#include <conio.h>

#define COM1 0

#define DATA_READY 0x100

#define TRUE 1

#define FALSE 0

#define SETTINGS ( 0x80 | 0x02 | 0x00 | 0x00)

int main(void)

{

int in, out, status, DONE = FALSE;

bioscom(0, SETTINGS, COM1);

cprintf("... BIOSCOM [ESC] to exit ...\n");

while (!DONE)

{