The Book

Class: Machine13

Seven~ Machine13

Example 7/13: nested functions

new Machine13()

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Extends

Classes

Memory

Methods

Add()

stack: ... a b -> ... a+b

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Branch()

stack: ... -> ... | pc: a

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Bzero()

stack: ... bool -> ... | pc: !bool? a

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Call()

stack: ... -> ... old-pc | pc: addr

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Divide()

stack: ... a b -> ... a/b

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Entry()

stack: ... arguments old-pc -> ... arguments old-pc old-fp old-dp result display locals

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Eq()

stack: ... a b -> ... a == b

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Exit()

stack: ... arguments old-pc old-fp old-dp result display locals -> ... result old-pc

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Ge()

stack: ... a b -> ... a >= b

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Gt()

stack: ... a b -> ... a > b

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Input()

stack: ... -> ... input

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Le()

stack: ... a b -> ... a <= b

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Load()

stack: ... -> ... memory[addr]

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LoadDP()

stack: ... -> ... frame[depth][addr]

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LoadFP()

stack: ... -> ... frame[addr]

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Lt()

stack: ... a b -> ... a < b

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Minus()

stack: ... a -> ... -a

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Multiply()

stack: ... a b -> ... a*b

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Ne()

stack: ... a b -> ... a != b

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Pop()

stack: ... val -> ...

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Print()

stack: ... n*val -> ...

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Push()

stack: ... -> ... result

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Puts()

stack: ... val -> ... | puts(val)

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Return()

stack: ... old-pc -> ... | pc: old-pc

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ReturnValue()

stack: ... x old-pc result -> ... result old-pc result

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Store()

stack: ... val -> ... val | memory[a]: val

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StoreDP()

stack: ... val -> ... val | frame[depth][addr]: val

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StoreFP()

stack: ... val -> ... val | frame[addr]: val

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Subtract()

stack: ... a b -> ... a-b

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gen()

returns code.length

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ins()

returns instruction function

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run()

Returns stack machine executable

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toString()

Represents code as text

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trace()

Returns trace function, if any

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