CScroll/JScroll Documenation

Instructions

Pointer Move Instructions

Instruction Symbol	Instruction	Language Version Added
<	Move Left	JScroll
>	Move Right	JScroll

Pointer Interaction Instructions

Instruction Symbol	Instruction	Language Version Added
+	Increment	JScroll
-	Decrement	JScroll
.	Store Value In Pointer Memory	JScroll
,	Store Current Index In Pointer Memory	CScroll 1.0.2
*	Add Pointer Memory To Current Pointer Location	JScroll
/	Subtract Pointer Memory To Current Pointer Location	JScroll

Note: By default the the Pointer's Memory is set to 0.

Pointer Print Instructions

Instruction Symbol	Instruction	Language Version Added
#	Print As Integer	JScroll
@	Print As Character	JScroll

Misc. Instructions

Instruction Symbol	Instruction	Language Version Added
^	Print A Newline Character	JScroll
'{char}'	Override Print char	JScroll
"{string}"	Override Print string	JScroll
&	Print Current Tape	JScroll
$	Print Current Tape With Spaces	JScroll
;	End Program, Returns The Current Value Stored In The Pointer's Memory	JScroll

Note: In JScroll does not return anything out of the program.
In JScroll ';' just ends the program.

Conditional Logic Instructions

All conditional logic is proceeded by a '_' to inidicate that it is conditional logic.
Conditional logic sits on the tape and involves 3 points.
Example (i0, i1, i2) i0 gets compared to i2, the result is stored as a 0 (false) or 1 (true) in i1.
In the above example the tape may look like ... i0, i1, i2, ... and i1 would be where the pointer must sit to make the comparison.

Instruction Symbol	Instruction	Language Version Added
_<<	Less Than	CScroll 1.0.1
_>>	Greater Than	CScroll 1.0.1
_<=	Less Than Or Equal To	CScroll 1.0.1
_>=	Greater Than Or Equal Toe	CScroll 1.0.1
_==	Equal To	CScroll 1.0.1
_!=	Not Equal To	CScroll 1.0.1

Interation Instructions

All iteration instructions follow the same format and take 3 parameters.
>({param_1}:{param_2}:{param_3})
{param_1} declares the type of iteration to be performed.
"f" is used for for-loops and "w" is used for while=loops.
{param_2} is the integer parameter for the loop.
In for-loops this is the number of iterations.
In while-loops this is an index on the tape that the loop will run as long as it is true.
{param_3} is the actual contents of the loop.

Instruction Symbol	Instruction	Language Version Added
(f:{int}:...)	For-Loop	CScroll 1.0.4
(w:{int}:...)	While-Loop	CScroll 1.0.5

Note: CScroll does not support nested loops. You cannot embed a loop within another loop.

Examples

Hello World


                "Hello World";

                Output: Hello World

Fibonnaci Without Loops


                +.> *.> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*>$;

                Output: 1 1 2 3 5 8 13 21 34


                +.> *.> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*> *<.>*>$;

                  1
                  1
                     2
                     3
                     5
                     8
                    13
                    21
                    34

                Output: 1 1 2 3 5 8 13 21 34

                This is also valid because everything after the ';' is read as a comment.