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opcode.go
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opcode.go
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// Copyright 2018 The OPA Authors. All rights reserved.
// Use of this source code is governed by an Apache2
// license that can be found in the LICENSE file.
// Package opcode contains constants and utilities for working with WASM opcodes.
package opcode
// Opcode represents a WASM instruction opcode.
type Opcode byte
// Control instructions.
const (
Unreachable Opcode = iota
Nop
Block
Loop
If
Else
)
const (
// End defines the special end WASM opcode.
End Opcode = 0x0B
)
// Extended control instructions.
const (
Br Opcode = iota + 0x0C
BrIf
BrTable
Return
Call
CallIndirect
)
// Parameter instructions.
const (
Drop Opcode = iota + 0x1A
Select
)
// Variable instructions.
const (
GetLocal Opcode = iota + 0x20
SetLocal
TeeLocal
GetGlobal
SetGlobal
)
// Memory instructions.
const (
I32Load Opcode = iota + 0x28
I64Load
F32Load
F64Load
I32Load8S
I32Load8U
I32Load16S
I32Load16U
I64Load8S
I64Load8U
I64Load16S
I64Load16U
I64Load32S
I64Load32U
I32Store
I64Store
F32Store
F64Store
I32Store8
I32Store16
I64Store8
I64Store16
I64Store32
MemorySize
MemoryGrow
)
// Numeric instructions.
const (
I32Const Opcode = iota + 0x41
I64Const
F32Const
F64Const
I32Eqz
I32Eq
I32Ne
I32LtS
I32LtU
I32GtS
I32GtU
I32LeS
I32LeU
I32GeS
I32GeU
I64Eqz
I64Eq
I64Ne
I64LtS
I64LtU
I64GtS
I64GtU
I64LeS
I64LeU
I64GeS
I64GeU
F32Eq
F32Ne
F32Lt
F32Gt
F32Le
F32Ge
F64Eq
F64Ne
F64Lt
F64Gt
F64Le
F64Ge
I32Clz
I32Ctz
I32Popcnt
I32Add
I32Sub
I32Mul
I32DivS
I32DivU
I32RemS
I32RemU
I32And
I32Or
I32Xor
I32Shl
I32ShrS
I32ShrU
I32Rotl
I32Rotr
I64Clz
I64Ctz
I64Popcnt
I64Add
I64Sub
I64Mul
I64DivS
I64DivU
I64RemS
I64RemU
I64And
I64Or
I64Xor
I64Shl
I64ShrS
I64ShrU
I64Rotl
I64Rotr
F32Abs
F32Neg
F32Ceil
F32Floor
F32Trunc
F32Nearest
F32Sqrt
F32Add
F32Sub
F32Mul
F32Div
F32Min
F32Max
F32Copysign
F64Abs
F64Neg
F64Ceil
F64Floor
F64Trunc
F64Nearest
F64Sqrt
F64Add
F64Sub
F64Mul
F64Div
F64Min
F64Max
F64Copysign
I32WrapI64
I32TruncSF32
I32TruncUF32
I32TruncSF64
I32TruncUF64
I64ExtendSI32
I64ExtendUI32
I64TruncSF32
I64TruncUF32
I64TruncSF64
I64TruncUF64
F32ConvertSI32
F32ConvertUI32
F32ConvertSI64
F32ConvertUI64
F32DemoteF64
F64ConvertSI32
F64ConvertUI32
F64ConvertSI64
F64ConvertUI64
F64PromoteF32
I32ReinterpretF32
I64ReinterpretF64
F32ReinterpretI32
F64ReinterpretI64
)