Sharing data in internal and memory representations with dynamic data-driven conversion

摘要

Illustrative embodiments determine the data type of the operand being accessed as well as analyze the data value subrange of the input operand data type. If the operand's data type does not match the required format of the instruction being processed, a determination is made as to whether a subrange of data values of the data type of the input operand is supported natively. If the subrange of data values of the input operand is not supported natively, then a format conversion is performed on the data and the instruction may then operate on the data. Otherwise, the data may be operated on directly by the instruction without a format conversion operation and thus, the conversion is not performed.