
RCPU
REFERENCE MANUAL
ADDRESSING MODES AND INSTRUCTION SET SUMMARY
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MOTOROLA
4-37
4.5.4 Integer Load and Store with Byte Reversal Instructions
Table 4-15
describes the integer load and store with byte reversal instructions.
Table 4-14 Integer Store Instructions
Name
Mnemonic
Operand
Syntax
Operation
Store Byte
stb
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d. Register
r
S[24:31] is
stored into the byte in memory addressed by the EA.
Store Byte
Indexed
stbx
r
S
,r
A
,r
B
The effective address is the sum (
r
A|0) + (
r
B).
r
S[24:31] is stored into
the byte in memory addressed by the EA.
Store Byte
with Update
stbu
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d.
r
S[24:31] is stored into the
byte in memory addressed by the EA. The EA is placed into register
r
A.
Store Byte
with Update
Indexed
stbux
r
S
,r
A
,r
B
The effective address is the sum (
r
A|0) + (
r
B).
r
S[24:31] is stored into
the byte in memory addressed by the EA. The EA is placed into
register
r
A.
Store
Half Word
sth
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d.
r
S[16:31] is stored into the
half-word in memory addressed by the EA.
Store
Half Word
Indexed
sthx
r
S
,r
A
,r
B
The effective address (EA) is the sum (
r
A|0) + (
r
B).
r
S[16:31] is stored
into the half-word in memory addressed by the EA.
Store
Half Word
with Update
sthu
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d.
r
S[16:31] is stored into the
half-word in memory addressed by the EA. The EA is placed into
register
r
A.
Store
Half Word
with Update
Indexed
sthux
r
S
,r
A
,r
B
The effective address is the sum (
r
A|0) + (
r
B).
r
S[16:31] is stored into
the half-word in memory addressed by the EA. The EA is placed into
register
r
A.
Store Word
stw
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d. Register
r
S is stored into
the word in memory addressed by the EA.
Store Word
Indexed
stwx
r
S
,r
A
,r
B
The effective address is the sum (
r
A|0) + (
r
B).
r
S is stored into the
word in memory addressed by the EA.
Store Word
with Update
stwu
r
S
,d(r
A
)
The effective address is the sum (
r
A|0) + d. Register
r
S is stored into
the word in memory addressed by the EA. The EA is placed into
register
r
A.
Store Word
with Update
Indexed
stwux
r
S
,r
A
,r
B
The effective address is the sum (
r
A|0) + (
r
B). Register
r
S is stored
into the word in memory addressed by the EA. The EA is placed into
register
r
A.
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