#include <at89x51.h>
#include <stdio.h>

/* stolen from http://www.cse.cuhk.edu.hk/~khwong/ceg3430/mrobot5.pdf */

char getch() {	
	char cin;
	_asm
		push ACC
	_endasm;
	_asm
		lcall 0x0032;
	_endasm;
	cin=ACC;
	_asm
		pop ACC
	_endasm;
	return(cin);
}

void putchar(char cout) {
	ACC=cout;
	_asm
		lcall 0x0030;
	_endasm;
}

void putstr(char *s, int j) {
	int i;
	for (i = 0; i <= j; i++) {
		putchar(s[i]);
	}
}  

void main (void) {
	char ss[] = "hello microblog\0";
	putstr(ss, 16);
}