Added platform specific fast put_char and put_string routines

include/console.h

@@ -5,3 +5,5 @@ char get_char();
 
 void put_string(char* s);
 
+void put_char_fast(char c);
+void put_string_fast(char* s);

src/console.c

@@ -21,9 +21,37 @@ void put_char(char c)  __naked {
 	__endasm;
 }
 
+void put_char_fast(char c)  __naked {
+	c;
+	__asm
+	conout:
+		in a, (0x03)
+		and #0x01
+		jp z, debug
+
+		ld iy, #2
+		add iy, sp
+		ld a, 0(iy)
+
+		out (0x02), a
+		ret
+	debug:
+		ld a, #0
+		out (0xFF), a
+		jp conout
+	__endasm;
+}
+
 void put_string(char* s) {
 	while (*s) {
 		put_char(*s);
 		s++;
 	}
 }
+
+void put_string_fast(char* s) {
+	while (*s) {
+		put_char_fast(*s);
+		s++;
+	}
+}