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stw
Store Word
PPC440x5 CPU Core User’s Manual Preliminary
Page 422 of 589
instrset.fm.
September 12, 2002
stw
Store Word
EA ← (RA|0) + EXTS(D)
MS(EA, 4)
← (RS)
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 when the RA field is 0, and is
the contents of register RA otherwise.
The contents of register RS are stored at the EA.
Registers Altered
• None
stw RS, D(RA)
36 RS RA D
0 6 11 16 31