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get_instruction_layout

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Andrew Morris
2022-04-26 16:14:53 +10:00
parent a791329f51
commit b0e4a13602
1 changed files with 54 additions and 0 deletions
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54
src/vstc/assemble.rs
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@@ -387,6 +387,60 @@ enum Instruction {
JmpIf = 0x28,
}
enum InstructionArg {
Value,
Register,
}
fn get_instruction_layout(instruction: Instruction) -> Vec<InstructionArg> {
use Instruction::*;
use InstructionArg::*;
return match instruction {
End => Vec::from([]),
Mov => Vec::from([Value, Register]),
OpInc => Vec::from([Register]),
OpDec => Vec::from([Register]),
OpPlus => Vec::from([Value, Value, Register]),
OpMinus => Vec::from([Value, Value, Register]),
OpMul => Vec::from([Value, Value, Register]),
OpDiv => Vec::from([Value, Value, Register]),
OpMod => Vec::from([Value, Value, Register]),
OpExp => Vec::from([Value, Value, Register]),
OpEq => Vec::from([Value, Value, Register]),
OpNe => Vec::from([Value, Value, Register]),
OpTripleEq => Vec::from([Value, Value, Register]),
OpTripleNe => Vec::from([Value, Value, Register]),
OpAnd => Vec::from([Value, Value, Register]),
OpOr => Vec::from([Value, Value, Register]),
OpNot => Vec::from([Value, Register]),
OpLess => Vec::from([Value, Value, Register]),
OpLessEq => Vec::from([Value, Value, Register]),
OpGreater => Vec::from([Value, Value, Register]),
OpGreaterEq => Vec::from([Value, Value, Register]),
OpNullishCoalesce => Vec::from([Value, Value, Register]),
OpOptionalChain => Vec::from([Value, Value, Register]),
OpBitAnd => Vec::from([Value, Value, Register]),
OpBitOr => Vec::from([Value, Value, Register]),
OpBitNot => Vec::from([Value, Value, Register]),
OpBitXor => Vec::from([Value, Value, Register]),
OpLeftShift => Vec::from([Value, Value, Register]),
OpRightShift => Vec::from([Value, Value, Register]),
OpRightShiftUnsigned => Vec::from([Value, Value, Register]),
TypeOf => Vec::from([Value, Register]),
InstanceOf => Vec::from([Value, Register]),
In => Vec::from([Value, Value, Register]),
Call => Vec::from([Value, Value, Register]),
Apply => Vec::from([Value, Value, Value, Register]),
Bind => Vec::from([Value, Value, Register]),
Sub => Vec::from([Value, Value, Register]),
SubMov => Vec::from([Value, Value, Register]),
SubCall => Vec::from([Value, Value, Value, Register]),
Jmp => Vec::from([Value]),
JmpIf => Vec::from([Value, Value]),
};
}
fn is_leading_identifier_char(c: char) -> bool {
return
c == '_' ||