(brainfuck.tal) Minor cleanup

projects/examples/exercises/brainfuck.tal

@@ -28,24 +28,21 @@
 	
 BRK
 
-(
-	> Move the pointer to the right
-	< Move the pointer to the left
-	+ Increment the memory cell at the pointer
-	- Decrement the memory cell at the pointer
-	[ Jump past the matching ] if the cell at the pointer is 0
-	] Jump back to the matching [ if the cell at the pointer is nonzero
-	, Input a character and store it in the cell at the pointer
-	. Output the character signified by the cell at the pointer )
-
 @op ( op -- )
 
+	( Move the pointer to the right )
 	LIT '> !~ ,&movr JCN [ .pointer LDZ2k INC2 ROT STZ2 POP RTN ] &movr
+	( Move the pointer to the left )
 	LIT '< !~ ,&movl JCN [ .pointer LDZ2k DEC2 ROT STZ2 POP RTN ] &movl
+	( Increment the memory cell at the pointer )
 	LIT '+ !~ ,&incr JCN [ .pointer LDZ2 STH2k LDA INC STH2r STA POP RTN ] &incr
+	( Decrement the memory cell at the pointer )
 	LIT '- !~ ,&decr JCN [ .pointer LDZ2 STH2k LDA DEC STH2r STA POP RTN ] &decr
+	( Output the character signified by the cell at the pointer )
 	LIT '. !~ ,&emit JCN [ .pointer LDZ2 LDA EMIT POP RTN ] &emit
+	( Jump past the matching ] if the cell at the pointer is 0 )
 	LIT '[ !~ ,&next JCN [ POP  ,goto-next JSR RTN ] &next
+	( Jump back to the matching [ if the cell at the pointer is nonzero )
 	LIT '] !~ ,&prev JCN [ POP ,goto-back JSR RTN ] &prev
 	POP