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Activities/Turtle Art/Tutorials/Turtle Art Code for Turing Machine (view source)
Revision as of 04:56, 30 June 2011
, 04:56, 30 June 2011Add Turtle Art action images
Turtle Art Code for Turtle Art Turing Machine
==Turtle Art Code for Turtle Art Turing Machine==
Click thumbnails to see full-size code blocks.
* The Start action is the main procedure
* The Start action is the main procedure
[[File:Start.png|thumb|none|Start action]]
* The Setup action defines and initializes variables, and sets the orientation of the turtle
* The Setup action defines and initializes variables, and sets the orientation of the turtle
[[File:Setup.png|thumb|none|Setup action]]
* The Tape action writes the initial tape. User can change values in repeat statements to change arguments.
* The Tape action writes the initial tape. User can change values in repeat statements to change arguments.
[[File:Tape.png|thumb|none|Tape action]]
* The Program action followed by the stack1 action writes the program table line by line. This is divided in two so that the segments fit in the Turtle Art workspace
* The Program action followed by the stack1 action writes the program table line by line. This is divided in two so that the segments fit in the Turtle Art workspace
[[File:Program.png|thumb|none|Program action]]
* The Execute action carries out the next program step until the halt state is reached
* The Execute action carries out the next program step until the halt state is reached
[[File:Execute.png|thumb|none|Execute action]]
* The ToTape action Move turtle to current cell on tape
* The ToTape action Move turtle to current cell on tape
[[File:ToTape.png|thumb|none|ToTape action]]
* The ToProgram action Move Turtle to beginning of current program row to execute
* The ToProgram action Move Turtle to beginning of current program row to execute
[[File:ToProgram.png|thumb|none|ToProgram action]]
* The WriteCell action Write current color to current cell, and move to next cell
* The WriteCell action Write current color to current cell, and move to next cell
[[File:WriteCell.png|thumb|none|WriteCell action]]
* The WriteSymbol action Write current color in cell without moving
* The WriteSymbol action Write current color in cell without moving
[[File:WriteSymbol.png|thumb|none|WriteSymbol action]]
* The ReadPixel action Read RGB values of pixel to stack, pop to variables
* The ReadPixel action Read RGB values of pixel to stack, pop to variables
[[File:ReadPixel.png|thumb|none| ReadPixelaction]]
* The SetValue action Find value of cell symbol from RGB numbers
* The SetValue action Find value of cell symbol from RGB numbers
[[File:SetValue.png|thumb|none|SetValue action]]
* The SetMove action Read next Move direction from program table
* The SetMove action Read next Move direction from program table
[[File:SetMove.png|thumb|none|SetMove action]]
* The SetSymbol action Read next Symbol to write from program table
* The SetSymbol action Read next Symbol to write from program table
[[File:SetSymbol.png|thumb|none|SetSymbol action]]
* The SetState action Read next State from program table
* The SetState action Read next State from program table
[[File:SetState.png|thumb|none|SetState action]]
* The NewCell action Move left or right and set cell number of new location
* The NewCell action Move left or right and set cell number of new location
[[File:NewCell.png|thumb|none|NewCell action]]
* The Log action Write Step number, Symbol, Move, State, Cell number on new log line in black, saving and restoring
* The Log action Write Step number, Symbol, Move, State, Cell number on new log line in black, saving and restoring
[[File:Log.png|thumb|none|Log action]]