Class InstructionDecoder

This class is dedicated to decoding a binary instruction. It offers an interface for decoding different parts of an instruction.

Author

Erik Burmester erik.burmester@nextbeam.net

Index

Constructors

Methods

decodeAddressingMode decodeInstructionType decodeIOperation decodeJOperation decodeOperandType decodeROperation

Constructors

constructor

new InstructionDecoder(): InstructionDecoder
Returns InstructionDecoder

Methods

`Static`decodeAddressingMode

decodeAddressingMode(encodedAddressingMode: Bit[]): EncodedAddressingModes
This method decodes the addressing mode of an instructions operand.
Parameters
- encodedAddressingMode: Bit[]
Returns EncodedAddressingModes
- Defined in src/main/simulator/InstructionDecoder.ts:45

`Static`decodeInstructionType

decodeInstructionType(encodedInstructionType: Bit[]): EncodedInstructionTypes
This methods decodes an instructions type.
Parameters
- encodedInstructionType: Bit[]
  The binary encoded instructions type.
Returns EncodedInstructionTypes
A decoded representation of the type.
- Defined in src/main/simulator/InstructionDecoder.ts:66

`Static`decodeIOperation

decodeIOperation(encodedOperation: Bit[]): EncodedOperations
This methods decodes an I-type instructions operation.
Parameters
- encodedOperation: Bit[]
  The binary encoded I-type operation.
Returns EncodedOperations
A decoded representation of the operation.
- Defined in src/main/simulator/InstructionDecoder.ts:83

`Static`decodeJOperation

decodeJOperation(encodedOperation: Bit[]): EncodedOperations
This methods decodes a J-type instructions operation.
Parameters
- encodedOperation: Bit[]
  The binary encoded J-type operation.
Returns EncodedOperations
A decoded representation of the operation.
- Defined in src/main/simulator/InstructionDecoder.ts:116

`Static`decodeOperandType

decodeOperandType(encodedOperandType: Bit[]): EncodedOperandTypes
This method decodes the type of an instructions operand.
Parameters
- encodedOperandType: Bit[]
Returns EncodedOperandTypes
- Defined in src/main/simulator/InstructionDecoder.ts:18

`Static`decodeROperation

decodeROperation(encodedOperation: Bit[]): EncodedOperations
This methods decodes a R-type instructions operation.
Parameters
- encodedOperation: Bit[]
  The binary encoded R-type operation.
Returns EncodedOperations
A decoded representation of the operation.
- Defined in src/main/simulator/InstructionDecoder.ts:176