31 lines
531 B
Go
31 lines
531 B
Go
package vm
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import "bytes"
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import "github.com/lunixbochs/struc"
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import "github.com/pkg/errors"
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const InstructionBytes = 32
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type Instruction struct {
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OpCode OpCodeType
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Reserved [4]byte
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Operand1 Operand
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Operand2 Operand
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opHandler OpHandler `struc:"skip"`
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}
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func NewInstruction(byteCode []byte) (*Instruction, error) {
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instr := &Instruction{}
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reader := bytes.NewReader(byteCode)
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err := struc.Unpack(reader, instr)
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if err != nil {
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return nil, errors.Wrap(err, "Error decoding instruction")
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}
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return instr, nil
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}
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