PNX1311EH NXP Semiconductors, PNX1311EH Datasheet - Page 307

• Manufacturer Part Number: PNX1311EH
• Manufacturer: NXP Semiconductors

Specifications of PNX1311EH

• Lead Free Status / RoHS Status: Not Compliant

PNX1300/01/02/11 Data Book
asli
SYNTAX
FUNCTION
DESCRIPTION
result in rdest equal to rsrc1 arithmetically shifted left by n bits. The value of n must be between 0 and 31, inclusive.
Zeros are shifted into the LSBs of rdest while the MSBs shifted out of rsrc1 are lost.
modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is unchanged.
EXAMPLES
A-9
r60 = 0x20
r10 = 0, r60 = 0x20
r20 = 1, r60 = 0x20
r70 = 0xfffffffc
r80 = 0xe
As shown below, the
The
[ IF rguard ] asli(n) rsrc1 → rdest
if rguard then {
}
rdest<31:n> ← rsrc1<31–n:0>
rdest<n–1:0> ← 0
asli
Initial Values
operations optionally take a guard, specified in rguard. If a guard is present, its LSB controls the
Intermediate result
(example: n = 3)
asli
PRELIMINARY SPECIFICATION
operation takes a single argument in rsrc1 and an immediate modifier n and produces a
rsrc1
rdest
asli(3) r60 → r90
IF r10 asli(3) r60 → r100
IF r20 asli(3) r60 → r110
asli(2) r70 → r120
asli(30) r80 → r125
31
31
32 bits from rsrc1
Operation
Left shifter
Arithmetic shift left immediate
3
0
0
0
0
0
0
0
0
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
asl asr asri lsl lsli lsr
r90 ← 0x100
no change, since guard is false
r110 ← 0x100
r120 ← 0xfffffff0
r125 ← 0x80000000
Shift amount n
from operation modifier
Philips Semiconductors
lsri rol roli
ATTRIBUTES
SEE ALSO
Result
shifter
7 bits
0..31
1, 2
11
1
1