Copyright (C) 1994, Digital Equipment Corp.
RTIO is a simple low-level interface for I/O used by the runtime. None of its routines do any locking or require any memory allocation. Output is buffered internally until
Flush is called or the internal buffer overflows.
Clients beware, this interface may change at any time.
INTERFACERTIO ; PROCEDURE PutChar (c: CHAR);
Write c. PROCEDURE PutChars (a: ADDRESS; n: INTEGER);
Write characters a[0..n-1]. PROCEDURE PutString (s: ADDRESS);
Write the null terminated string beginning at s. PROCEDURE PutText (t: TEXT);
Write textton filef.
PROCEDURE PutInt (i: INTEGER; width := 0);
Convert integerito decimal digits and write it right-justified in a field ofwidthcharacters.
PROCEDURE PutHex (i: INTEGER; width := 0);
Convert unsigned integerito hexidecimal digits with a0xprefix and write it right-justified in a field ofwidthcharacters.
PROCEDURE PutAddr (a: ADDRESS; width := 0);
== PutHex (LOOPHOLE (a, INTEGER), width)
PROCEDURE Flush ();
Flush any buffered characters to the operating system.
END RTIO.