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RS232.patch
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RS232.patch
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--- 1/RS232.Mod.txt
+++ 2/RS232.Mod.txt
@@ -2,22 +2,35 @@
IMPORT SYSTEM;
CONST data = -56; stat = -52;
+ PROCEDURE Idle;
+ BEGIN
+ (* SYSTEM.PUT(-64, 7FFFFFFFH) *)
+ END Idle;
+
+ PROCEDURE Available*() : BOOLEAN;
+ RETURN SYSTEM.BIT(stat, 0)
+ END Available;
+
PROCEDURE Send*(x: INTEGER);
BEGIN
- REPEAT UNTIL SYSTEM.BIT(stat, 1);
+ WHILE ~SYSTEM.BIT(stat, 1) DO Idle END;
SYSTEM.PUT(data, x)
END Send;
PROCEDURE Rec*(VAR x: INTEGER);
BEGIN
- REPEAT UNTIL SYSTEM.BIT(stat, 0);
+ WHILE ~Available() DO Idle END;
SYSTEM.GET(data, x)
END Rec;
- PROCEDURE SendInt*(x: INTEGER);
+ PROCEDURE SendIntRaw*(x: INTEGER);
VAR i: INTEGER;
- BEGIN Send(1); i := 4;
+ BEGIN i := 4;
REPEAT i := i-1; Send(x); x := ROR(x, 8) UNTIL i = 0
+ END SendIntRaw;
+
+ PROCEDURE SendInt*(x: INTEGER);
+ BEGIN Send(1); SendIntRaw(x)
END SendInt;
PROCEDURE SendHex*(x: INTEGER);
@@ -32,10 +45,14 @@
REPEAT i := i-1; Send(u); u := ROR(u, 8) UNTIL i = 0
END SendReal;
- PROCEDURE SendStr*(x: ARRAY OF CHAR);
+ PROCEDURE SendStrRaw*(x: ARRAY OF CHAR);
VAR i, k: INTEGER;
- BEGIN Send(4); i := 0;
+ BEGIN i := 0;
REPEAT k := ORD(x[i]); Send(k); INC(i) UNTIL k = 0
+ END SendStrRaw;
+
+ PROCEDURE SendStr*(x: ARRAY OF CHAR);
+ BEGIN Send(4); SendStrRaw(x)
END SendStr;
PROCEDURE RecInt*(VAR x: INTEGER);