A computation device, comprising a storage unit, a controller unit, an operation unit, and a conversion unit, wherein: the controller unit is configured to: obtain at least one operation instruction, wherein the at least one operation instruction is a variable format operation instruction or a fixed-point format operation instruction, wherein the variable format operation instruction comprises an opcode field and an opcode, the opcode being configured to indicate a function of the variable format operation instruction, and the opcode field comprising a first address of first input data and a length of the first input data, a first address of output data, a decimal point position, a flag bit indicating a data type of the first input data, and an operation type identifier; parse, if the at least one operation instruction is the variable format operation instruction, the variable format operation instruction, so as to obtain the first address of the first input data, the first address of the output data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier; obtain the first input data from the storage unit according to the first address of the first input data, and then transmit the first input data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier to the conversion unit; and transmit the first address of the output data to the operation unit; and the conversion unit is configured to convert the first input data into a second input data according to the flag bit indicating the data type, the decimal point position, and an operation type indicated by the operation type identifier, and to transmit the second input data to the operation unit, wherein the second input data is fixed-point data. the controller unit is configured to: obtain at least one operation instruction, wherein the at least one operation instruction is a variable format operation instruction or a fixed-point format operation instruction, wherein the variable format operation instruction comprises an opcode field and an opcode, the opcode being configured to indicate a function of the variable format operation instruction, and the opcode field comprising a first address of first input data and a length of the first input data, a first address of output data, a decimal point position, a flag bit indicating a data type of the first input data, and an operation type identifier; parse, if the at least one operation instruction is the variable format operation instruction, the variable format operation instruction, so as to obtain the first address of the first input data, the first address of the output data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier; obtain the first input data from the storage unit according to the first address of the first input data, and then transmit the first input data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier to the conversion unit; and transmit the first address of the output data to the operation unit; and obtain at least one operation instruction, wherein the at least one operation instruction is a variable format operation instruction or a fixed-point format operation instruction, wherein the variable format operation instruction comprises an opcode field and an opcode, the opcode being configured to indicate a function of the variable format operation instruction, and the opcode field comprising a first address of first input data and a length of the first input data, a first address of output data, a decimal point position, a flag bit indicating a data type of the first input data, and an operation type identifier; parse, if the at least one operation instruction is the variable format operation instruction, the variable format operation instruction, so as to obtain the first address of the first input data, the first address of the output data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier; obtain the first input data from the storage unit according to the first address of the first input data, and then transmit the first input data, the decimal point position, the flag bit indicating the data type of the first input data, and the operation type identifier to the conversion unit; and transmit the first address of the output data to the operation unit; and the conversion unit is configured to convert the first input data into a second input data according to the flag bit indicating the data type, the decimal point position, and an operation type indicated by the operation type identifier, and to transmit the second input data to the operation unit, wherein the second input data is fixed-point data.