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Load Halfword Algebraic Indexed
PPC440x5 CPU Core User’s Manual Preliminary
Page 328 of 589
instrset.fm.
September 12, 2002
lhax
Load Halfword Algebraic Indexed
EA ← (RA|0) + (RB)
(RT)
← EXTS(MS(EA,2))
An effective address (EA) is formed by adding an index to a base address. The index is the contents of
register RB. 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 sign-extended to 32 bits and placed into register RT.
If instruction bit 31 contains 1, the contents of CR[CR0] are undefined.
Registers Altered
•RT
Invalid Instruction Forms
• Reserved fields
lhax RT, RA, RB
31 RT RA RB 343
0 6 11 16 21 31