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MPC823e Instruction Set—mulli
mulli
Assembler Syntax
BIT
0
1
2
FIELD
07
BIT
16
17
18
FIELD
Definition
Operation
Description
B-106
mulli
rD,rA,SIMM
3
4
5
6
7
19
20
21
22
23
SIMM
Multiply Low Immediate
prod[0–48] ← (rA) ∗ SIMM
rD ← prod[16-48]
The first operand is (rA). The 16-bit second operand is the value
of the SIMM field. The low-order 32-bits of the 48-bit product of
the operands are placed into rD. Both the operands and the
product are interpreted as signed integers. The low-order 32 bits
of the product are calculated independently of whether the
operands are treated as signed or unsigned 32-bit integers. This
instruction can be used with mulhd x or mulhw x to calculate a
full 64-bit product.
Other registers altered:
None
POWERPC ARCHITECTURE
LEVEL
UISA
MPC823e REFERENCE MANUAL
8
9
10
11
12
D
24
25
26
27
28
SUPERVISOR
OPTIONAL
LEVEL
13
14
15
A
29
30
31
FORM
D
MOTOROLA
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