The Book

Class: Arithmetic09

Six~ Arithmetic09

Example 6/09: actions to generate stack machine code.

new Arithmetic09()

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Methods

_alloc()

Returns memory address for name

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add()

add: '+' right;

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divide()

divide: '/' signed;

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input()

input: 'input' [ Number ];

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list()

list: stmt [{ ';' stmt }];

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multiply()

multiply: '*' right;

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name()

name: Name;

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number()

number: Number;

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signed()

signed: [ '-' ] term;

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stmt()

stmt: sum;

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subtract()

subtract: '-' right;

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sum()

sum: 'let' Name '=' sum | product [{ add | subtract }];

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