add doc
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1 changed files with 13 additions and 2 deletions
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@ -101,10 +101,21 @@ pub enum Instruction {
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CheckCast { reg: u8, lit: IdType },
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CheckCast { reg: u8, lit: IdType },
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/// Check if an object if an instance of a type.
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/// Check if an object if an instance of a type.
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/// (put 1 in the dest register if yes, else 0)
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/// (put 1 in the dest register if yes, else 0)
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InstanceOf { dest: u8, obj: u8, lit: IdType },
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InstanceOf {
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/// 4 bit register
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dest: u8,
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/// 4 bit register
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obj: u8,
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lit: IdType,
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},
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/// Get the number of item in an array.
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/// Get the number of item in an array.
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/// (put the lenght in the dest register)
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/// (put the lenght in the dest register)
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ArrayLength { dest: u8, arr: u8 },
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ArrayLength {
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/// 4 bit register
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dest: u8,
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/// 4 bit register
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arr: u8,
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},
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/// Construct a new instance of the indicated type and store a reference to it.
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/// Construct a new instance of the indicated type and store a reference to it.
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NewInstance { reg: u8, lit: IdType },
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NewInstance { reg: u8, lit: IdType },
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/// Construct a new array of the indicated type and size in size_reg and store a reference to it.
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/// Construct a new array of the indicated type and size in size_reg and store a reference to it.
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