1. A computer processor comprising: execution logic including at least one functional unit and operand storage that stores data that is produced and consumed by the at least one functional unit; wherein the at least one functional unit is configured to execute a deferred operation whose execution produces result data; and wherein the execution logic further includes a retire station that is configured to store and retire the result data of the deferred operation in order to store such result data in the operand storage, wherein the retire of such result data occurs at a machine cycle following issue of the deferred operation as controlled by statically-assigned parameter data included in the encoding of the deferred operation.