PNX1300 Philips, PNX1300 Datasheet - Page 457

• Manufacturer Part Number: PNX1300
• Description: Media Processors
• Manufacturer: Philips

PNX1300/01/02/11 Data Book
roli
SYNTAX
FUNCTION
DESCRIPTION
result in rdest equal to rsrc1 rotated left by n bits. The value of n must be between 0 and 31, inclusive. The most-
significant n bits of rsrc1 appear as the least-significant n bits in rdest.
modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is unchanged.
EXAMPLES
A-159
r60 = 0x20
r10 = 0, r60 = 0x20
r20 = 1, r60 = 0x20
r70 = 0xfffffffc
r80 = 0xe
As shown below, the
The
[ IF rguard ] roli(n) rsrc1
if rguard then {
}
roli
rdest<31:n>
rdest<n–1:0>
Intermediate result
(example: n = 9)
Initial Values
operations optionally take a guard, specified in rguard. If a guard is present, its LSB controls the
rsrc1<31–n:0>
rsrc1<31:32–n>
roli
PRELIMINARY SPECIFICATION
31
operation takes a single argument in rsrc1 and an immediate modifier n and produces a
rsrc1
rdest
23
roli(3) r60
IF r10 roli(3) r60
IF r20 roli(3) r60
roli(2) r70
roli(30) r80
31
31
32 bits from rsrc1
rdest
Operation
Left rotator
r90
r120
r125
r100
r110
0
9
31
Rotate left by immediate
23
0
0
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
rol asl asli asr asri lsl
r90
no change, since guard is false
r110
r120
r125
32 bits from rsrc1
Rotate amount n
from operation modifier
Philips Semiconductors
0x100
0x100
0xfffffff3
0x80000003
lsli lsr lsri
ATTRIBUTES
SEE ALSO
Result
shifter
7 bits
0..31
1, 2
98
1
1
0