| 1 | import { MachineOp, Op } from '../vm-opcodes';
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| 2 | import { Operand } from './operands';
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| 3 | import { CompilerBuffer } from '../template';
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| 4 |
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| 5 | export const enum OpcodeSize {
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| 6 | ARG_SHIFT = 8,
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| 7 | MAX_SIZE = 0x7fffffff,
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| 8 | TYPE_SIZE = 0b11111111,
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| 9 | TYPE_MASK = 0b00000000000000000000000011111111,
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| 10 | OPERAND_LEN_MASK = 0b00000000000000000000001100000000,
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| 11 | MACHINE_MASK = 0b00000000000000000000010000000000,
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| 12 | }
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| 13 |
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| 14 | export interface InstructionEncoder {
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| 15 | size: number;
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| 16 | readonly buffer: CompilerBuffer;
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| 17 |
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| 18 | encode(type: MachineOp, machine: OpcodeSize.MACHINE_MASK, ...operands: Operand[]): void;
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| 19 | encode(type: Op, machine: 0, ...operands: Operand[]): void;
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| 20 |
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| 21 | patch(position: number, target: number): void;
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| 22 | }
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