A SERVICE OF

logo

Open as PDF
next previous
lwzx
Load Word and Zero Indexed
PPC440x5 CPU Core User’s Manual Preliminary
Page 344 of 589
instrset.fm.
September 12, 2002
lwzx
Load Word and Zero Indexed
EA ← (RA|0) + (RB)
(RT)
← MS(EA,4)
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 word at the EA 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
lwzx RT, RA, RB
31 RT RA RB 23
0 6 11 16 21 31