1991/0702/pc/main.c (diff list | history)

1991/0629/sys/src/9/pc/main.c:1,56 – 1991/0702/sys/src/9/pc/main.c:1,39 (short | long | prev | next)
1991/0629		#include <u.h>
1991/0702		#include "u.h" #include "lib.h" #include "dat.h" #include "fns.h"
1991/0629		#define WIDTH 80 #define HEIGHT 22 #define SCREEN ((char *)0xB8000) int pos;                  void prchar(int x)
1991/0702		main(void)
1991/0625		{
1991/0629		if(x == '\n'){ pos = pos/WIDTH; pos = (pos+1)*WIDTH; } else { SCREEN[pos++] = x; SCREEN[pos++] = 0x43;
1991/0702		for(;;){ print("%x ", kbdc());
1991/0629		} if(pos >= WIDTH*HEIGHT) pos = 0;
1991/0625		}
1991/0629		void prstr(char *s)
1991/0702		delay(int l)
1991/0625		{
1991/0629		while(*s) prchar(*s++);
1991/0625		}
1991/0702		int i;
1991/0625
1991/0629		void prdig(ulong x)
1991/0625		{
1991/0629		if(x < 0xA) prchar('0' + x); else prchar('A' + x);
1991/0702		while(--l){ for(i=0; i < 10000; i++) ; }
1991/0625		}
1991/0629		void prhex(ulong x)
1991/0702		int sprint(char *s, char *fmt, ...)
1991/0625		{
1991/0629		ulong y;                  if(x <= 0xF){ prdig(x); } else { y = x&0xF; prhex(x>>4); prdig(y); }
1991/0702		return doprint(s, s+PRINTSIZE, fmt, (&fmt+1)) - s;
1991/0625		}
1991/0629		main(void)
1991/0702		int print(char *fmt, ...)
1991/0629		{ prstr("hello world\n"); }
1991/0702		char buf[PRINTSIZE]; int n;
1991/0629
1991/0702		n = doprint(buf, buf+sizeof(buf), fmt, (&fmt+1)) - buf; screenputs(buf, n); return n; }