32 lines
858 B
Rust
32 lines
858 B
Rust
use crate::{Argument, Instruction, Operation};
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pub struct Subtract {
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pub destination: u8,
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pub left: Argument,
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pub right: Argument,
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}
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impl From<&Instruction> for Subtract {
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fn from(instruction: &Instruction) -> Self {
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let destination = instruction.a_field();
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let (left, right) = instruction.b_and_c_as_arguments();
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Subtract {
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destination,
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left,
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right,
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}
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}
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}
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impl From<Subtract> for Instruction {
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fn from(subtract: Subtract) -> Self {
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let operation = Operation::SUBTRACT;
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let a = subtract.destination;
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let (b, b_is_constant) = subtract.left.as_index_and_constant_flag();
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let (c, c_is_constant) = subtract.right.as_index_and_constant_flag();
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Instruction::new(operation, a, b, c, b_is_constant, c_is_constant, false)
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}
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}
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