#pragma code small
#include <absacc.h>
#include <math.h>
#include <reg51.h>
#define PI 3.1415926

#define NCIRCLE DBYTE[0x003a]//=10 //放置轉速的絕對地址

#define DIRECT1 DBYTE[0x0070]//=9 //放置輪徑千位的絕對地址mm
#define DIRECT2 DBYTE[0x0071]//=9 //放置輪徑百位的絕對地址mm
#define DIRECT3 DBYTE[0x0072]//=0 //放置輪徑十位的絕對地址mm
#define DIRECT4 DBYTE[0x0073]//=0 //放置輪徑個位的絕對地址mm

#define VELOCITY1 DBYTE[0x0074]//=10 //返回車速千位的絕對地址
#define VELOCITY2 DBYTE[0x0075]//=10 //返回車速百位的絕對地址
#define VELOCITY3 DBYTE[0x0076]//=10 //返回車速十位的絕對地址
#define VELOCITY4 DBYTE[0x0077]//=10 //返回車速個位的絕對地址
//void call1();
extern OUTP();
extern INBYT();
extern OUTBYTE();
void call1()
{
	float data result;
	unsigned int  DIRECT=0;

	DIRECT=DIRECT1;
	DIRECT=DIRECT1*1000+DIRECT2*100+DIRECT3*10+DIRECT4;
	result=(float)(DIRECT/1000.0)*PI*NCIRCLE*3.6;
	
	VELOCITY1=result/100;
	result=result-VELOCITY1*100;

	VELOCITY2=result/10;
	result-=VELOCITY2*10;

	VELOCITY3=result;
	result-=VELOCITY3;
	VELOCITY4=result*10;
}
main()
{
	char i;
	OUTP();
	INBYT();// call asm
	i=ACC;

	ACC=0x10;
	OUTBYTE();

	call1();

}