CHR / CHR$ issue? (*solved*)

[britlion]

I boiled the issue down to the following code

Code:

DIM x,f as integer CLS FOR x=1 TO 4 PRINT AT 0,0; LET f=1 170 print at 0,0; PRINT (x+64); IF f<704 THEN LET f=f+1 GO TO 170 END IF 180 NEXT x BEEP 1,1

This works perfectly. However, if we ask for the CHR of (x+64):

Code:

DIM x,f as integer CLS FOR x=1 TO 4 PRINT AT 0,0; LET f=1 170 print at 0,0; PRINT CHR(x+64); IF f<704 THEN LET f=f+1 GO TO 170 END IF 180 NEXT x BEEP 1,1

My produced code crashes spectacularly. Has the CHR function come up with a bug?