| 摘要 |
By the use of a LOAD IMMEDIATE LEFT instruction and a subsequent ADD IMMEDIATE instruction a data word having the same length as an instruction is loaded to a target register without the need for special fault handling hardware or software. The upper portion of the data word is embedded in the first instruction and the lower portion is embedded in the second instruction; the portions are stored in the target register independently and are combined to form the desired data word. In an alternate embodiment, the upper portion is combined with the contents of a source register, the combination is stored in a reserved register and lower order bits may be supplied by a subsequent memory reference instruction to create a 32 bit address displacement which, optionally, may be stored in the reserved register for later use. |
