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MPC823e Instruction Set—stbx
stbx
Assembler Syntax
BIT
0
1
2
FIELD
31
BIT
16
17
18
FIELD
B
Definition
Operation
Description
B-130
stbx
rS,rA,rB
3
4
5
6
7
19
20
21
22
23
Store Byte Indexed
if rA = 0 then b ← 0
b ← (rA)
else
EA ← b + (rB)
MEM(EA, 1) ← rS[24-31]
EA is the sum (rA|0) + (rB). The contents of the low-order eight
bits of rS are stored into the byte in memory addressed by EA.
Other registers altered:
None
POWERPC ARCHITECTURE
LEVEL
UISA
MPC823e REFERENCE MANUAL
8
9
10
11
12
S
24
25
26
27
28
215
SUPERVISOR
OPTIONAL
LEVEL
13
14
15
A
29
30
31
0
FORM
X
MOTOROLA
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