outbound.c

来自「嵌入式系统基础课件」· C语言 代码 · 共 37 行

#include <ctype.h>
#include "libepc.h"
#include "serial.h"

PRIVATE WINDOW *w ;

void InitOutBound(void)
	{
	w = WindowCreate("Local", 0, 11, 0, 79) ;
	}

void OutBound(void)
	{
	WindowSelect(w) ;

	if (ScanCodeRdy())
		{
		BYTE8 code = GetScanCode() ;
		if (!(code & 0x80) && !SetsKybdState(code))
			{
			char ascii = ScanCode2Ascii(code) & 0xFF ;
			if (isprint(ascii) | iscntrl(ascii))
				{
				WindowPutChar(w, ascii) ;

				SerialPut(ascii) ;
				if (ascii == '\r')
					{
					WindowPutChar(w, '\n') ;
					SerialPut('\n') ;
					}
				}
			}
		}
	}