AMCC Proprietary 317
Revision 1.02 - September 10, 2007
PPC405 Processor
stmw
Store Multiple Word
Preliminary User’s Manual
stmw
Store Multiple Word
EA ← (RA|0) + EXTS(D)
r
← RS
do while r
≤ 31
MS(EA, 4) ← (GPR(r))
r
← r+1
EA
← EA + 4
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 a series of consecutive registers, starting with register RS and continuing through GPR(31), are
stored into consecutive words starting at the EA.
Registers Altered
•None
Architecture Note
This instruction is part of the PowerPC User Instruction Set Architecture.
stmw RS, D(RA)
47 RS RA D
0 6 11 16 31
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