AMCC Proprietary 233
Revision 1.02 - September 10, 2007
PPC405 Processor
lhbrx
Load Halfword Byte-Reverse Indexed
Preliminary User’s Manual
lhbrx
Load Halfword Byte-Reverse Indexed
EA ← (RA|0) + (RB)
(RT)
←
16
0 || MS(EA +1,1) || MS(EA,1)
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 byte-reversed. The resulting halfword is extended to 32 bits by concatenating 16 0-bits to
its left. The result is 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
Architecture Note
This instruction is part of the PowerPC User Instruction Set Architecture.
l
hbrx RT, RA, RB
31 RT RA RB 790
0 6 11 16 21 31
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