EA <- b + EXTS(DQ || 0b0000)
RTp <- MEM(EA, 16)
+Description
+
+ Let the effective address (EA) be the sum (RA|0)+
+ (DQ||0b0000). The quadword in storage addressed by
+ EA is loaded into register pair RTp.
+
+ If RTp is odd or RTp=RA, the instruction form is invalid.
+ If RTp=RA, an attempt to execute this instruction will
+ invoke the system illegal instruction error handler. (The
+ RTp=RA case includes the case of RTp=RA=0.)
+
+ The quadword in storage addressed by EA is loaded
+ into an even-odd pair of GPRs as follows. In
+ Big-Endian mode, the even-numbered GPR is loaded
+ with the doubleword from storage addressed by EA
+ and the odd-numbered GPR is loaded with the double-
+ word addressed by EA+8. In Little-Endian mode, the
+ even-numbered GPR is loaded with the byte-reversed
+ doubleword from storage addressed by EA+8 and the
+ odd-numbered GPR is loaded with the byte-reversed
+ doubleword addressed by EA.
+
Special Registers Altered:
None