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lhz
Load Halfword and Zero
PPC440x5 CPU Core User’s Manual Preliminary
Page 330 of 589
instrset.fm.
September 12, 2002
lhz
Load Halfword and Zero
EA ← (RA|0) + EXTS(D)
(RT)
←
16
0 || MS(EA,2)
An effective address (EA) is formed by adding a displacement to a base address. The displacement is
obtained by sign-extending the 16-bit D field to 32 bits. The base address is 0 if the RA field is 0 and is the
contents of register RA otherwise.
The halfword at the EA is extended to 32 bits by concatenating 16 0-bits to its left. The result is placed into
register RT.
Registers Altered
•RT
lhz RT, D(RA)
40 RT RA D
0 6 11 16 31