I fixed up the file of this morning's message (but still have a listing
in case you want to see it) but it still "DRYROTS".  The file is
TRY.SAI[G,MJC].  Is there something special I should know about for-stmts?
					Mike Clancy

17-NOV-72  1742		G,MJC
A program which I wrote to try to learn a few things (namely SAIL and the
Quam display routines) uncovered a "DRYROT" error.  The program is 
TRY.SAI[G,MJC], and the error occurred in line 2600.  Any suggestions?
					Mike Clancy

JAM again. Sorry, it doesn't go away with
an "IF TRUE THEN", only with an "IF FOO THEN"

22-NOV-72  2344		MA,JAM
JAM here bringing to you yet another
insidious SAIL bug. There is a program
BUG.SAI[MA,JAM] which compiles the following
code incorrectly (see page 6 of source file):

	BEGIN "FLTO"
	    REAL ARRAY Y[1:LN+GWIDTH];
	    *** LOTS OF STUFF ***
	END "FLTO";
	BEGIN "DPGT"
	    INTEGER ARRAY BUF[1:5500];
	    *** MORE STUFF ***
	END "DPGT";

The following code appears:

DPGT&DPGT.-6/	PUSHJ P,BEXIT
DPGT&DPGT.-5/	PUSH P,3	; LOWER ARRAY BOUND???
DPGT&DPGT.-4/	PUSH P,[=5500]	; THIS IS OK
DPGT&DPGT.-3/	PUSH P,3	; IT SEEMS TO THINK AC3 CONTAINS A 1
DPGT&DPGT.-2/	PUSHJ P,ARRMAK

This, of course, gets a "UPPER BOUND<LOWER BOUND" error
message, for constant bounds yet! Anyway, the problem
goes away if you put an "IF TRUE THEN" in front of
the BEGIN "DPGT". Is that enough?

22-NOV-72  2341		MA,JAM
Dear Ail,
  CASE n OF (ITV, ITV, ... ITV) generates, in at least one case

	<case check>
	JRST	@TABLE(IDX)
	PUSH	P,ITV
	JRST	DONE
	...
	PUSH	P,ITV
	JRST	DONE
TABLE:	.-...
	.-...
	...
	TABLE-2
DONE:	POP	P,TBITS2
	MOVE	A,0			;!!!!!!!!!!!
	....
 This is fairly recent (MOVE s/b MOVE A,TBITS2 or whatever).

DCS

20-NOV-72  0341		SLS,DCS
I RAN INTO PROBLEMS WHEN USING THE SAIL DPB COMMAND.
THE CODE GENERATED FOR THE INSTRUCTION
	DPB(A,POINT(11,BUFX[POINTER],10))
	SEEMED TO LOAD A INTO REGESTER 10 AND PROMPTLY DEPOSIT REG 11.
THE PROGRAM IS TEST.SAI ON [1,EMC], AND THE OFFENDING LINE IS IN THE
AIVCT1 PROCEDURE FOUND ON PAGE 4, I BELIEVE.
19-NOV-72  0831		1,EMC