RT <- ([0] * 32 || load_data[24:31] || load_data[16:23]
|| load_data[8:15] || load_data[0:7])
+Description:
+
+ Let the effective address (EA) be the sum of the contents of
+ register RB shifted by (SH+1), and (RA|0).
+
+ Bits 0:7 of the word in storage addressed
+ by EA are loaded into RT[56:63]. Bits 8:15 of the word in
+ storage addressed by EA are loaded into RT[48:55]. Bits
+ 16:23 of the word in storage addressed by EA are
+ loaded into RT[40:47]. Bits 24:31 of the word in storage
+ addressed by EA are loaded into RT 32:39.
+ RT[0:31] are set to 0.
+
Special Registers Altered:
None