PNX1301 PHILIPS [NXP Semiconductors], PNX1301 Datasheet - Page 403

• Manufacturer Part Number: PNX1301
• Description: Media Processors
• Manufacturer: PHILIPS [NXP Semiconductors]

PNX1300/01/02/11 Data Book
ild16d
SYNTAX
FUNCTION
DESCRIPTION
bits, and stores the result in rdest. The d value is an opcode modifier, must be in the range –128 to 126 inclusive, and
must be a multiple of 2. If the memory address computed by r src1 + d is not a multiple of 2, the result of
undefined but no exception will be raised. This load operation is performed as little-endian or big-endian depending on
the current setting of the bytesex bit in the PCSW.
defined only for 32-bit loads and stores.
modification of the destination register and the occurrence of side effects. If the LSB of rguard is 1, rdest is written and
the data cache status bits are updated if the addressed locations are cacheable. if the LSB of rguard is 0, rdest is not
changed and
EXAMPLES
A-105
r10 = 0xd00, [0xd02] = 0x22,
[0xd03] = 0x11
r30 = 0, r20 = 0xd04, [0xd00] = 0x84,
[0xd01] = 0x33
r40 = 1, r20 = 0xd04, [0xd00] = 0x84,
[0xd01] = 0x33
r50 = 0xd01
The
The result of an access by
The
[ IF rguard ] ild16d(d) rsrc1
if rguard then {
}
if PCSW.bytesex = LITTLE_ENDIAN then
else
temp<7:0>
temp<15:8>
rdest
ild16d
ild16d
bs
bs
Initial Values
1
0
sign_ext16to32(temp<15:0>)
ild16d
operation loads the 16-bit memory value from the address computed by rsrc1 + d, sign extends it to 32
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
mem[(rsrc1 + d + (1
mem[(rsrc1 + d + (0
PRELIMINARY SPECIFICATION
has no side effects whatever.
ild16d
ild16d(2) r10
IF r30 ild16d(-4) r20
IF r40 ild16d(-4) r20
ild16d(-4) r50
bs)]
bs)]
to the MMIO address aperture is undefined; access to the MMIO aperture is
Operation
rdest
Signed 16-bit load with displacement
r60
r90
r70
r80
r60
no change, since guard is false
r80
r90 undefined, since 0xd01 +(–4) is not a
multiple of 2
0x00002211
0xffff8433
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
ild16 uld16 uld16d ild16r
uld16r ild16x uld16x
Philips Semiconductors
ATTRIBUTES
Result
SEE ALSO
–128..126 by 2
ild16d
dmem
7 bits
4, 5
6
1
3
is