PNX1300 Philips, PNX1300 Datasheet - Page 490
PNX1300
Manufacturer Part Number
PNX1300
Description
Media Processors
Manufacturer
Philips
Datasheet
1.PNX1300.pdf
(548 pages)
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Philips Semiconductors
Unsigned 8-bit load
pseudo-op for uld8d(0)
SYNTAX
FUNCTION
DESCRIPTION
argument. (Note: pseudo operations cannot be used in assembly source files.)
and writes the result in rdest. This operation does not depend on the bytesex bit in the PCSW since only a single byte
is loaded.
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 location is cacheable. if the LSB of rguard is 0, rdest is not
changed and
EXAMPLES
r10 = 0xd00, [0xd00] = 0x22
r30 = 0, r20 = 0xd04, [0xd04] = 0x84
r40 = 1, r20 = 0xd04, [0xd04] = 0x84
r50 = 0xd01, [0xd01] = 0x33
The
The
The result of an access by
The
[ IF rguard ] uld8 rsrc1
if rguard then
rdest
uld8
uld8
uld8
Initial Values
zero_ext8to32(mem[rsrc1])
operation loads the 8-bit memory value from the address contained in rsrc1, zero extends it to 32 bits,
uld8
operation is a pseudo operation transformed by the scheduler into an
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
has no side effects whatever.
uld8
uld8 r10
IF r30 uld8 r20
IF r40 uld8 r20
uld8 r50
to the MMIO address aperture is undefined; access to the MMIO aperture is
rdest
Operation
r60
r90
PRELIMINARY SPECIFICATION
r70
r80
PNX1300/01/02/11 DSPCPU Operations
r60
no change, since guard is false
r80
r90
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
0x00000022
0x00000084
0x00000033
ild8 uld8d ild8d uld8r
uld8d(0)
ATTRIBUTES
SEE ALSO
Result
ild8r
with the same
uld8
dmem
4, 5
No
—
8
1
3
A-192
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