PNX1300 Philips, PNX1300 Datasheet - Page 407

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

PNX1300/01/02/11 Data Book
ild8d
SYNTAX
FUNCTION
DESCRIPTION
bits, and stores the result in rdest. The d value is an opcode modifier in the range -64 to 63, inclusive. 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
A-109
r10 = 0xd00, [0xd02] = 0x22
r30 = 0, r20 = 0xd04, [0xd00] = 0x84
r40 = 1, r20 = 0xd04, [0xd00] = 0x84
r50 = 0xd05, [0xd01] = 0x33
The
The result of an access by
The
[ IF rguard ] ild8d(d) rsrc1
if rguard then
rdest
ild8d
ild8d
Initial Values
sign_ext8to32(mem[rsrc1 + d])
ild8d
operation loads the 8-bit memory value from the address computed by r src1 + d, sign extends it to 32
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
has no side effects whatever.
PRELIMINARY SPECIFICATION
ild8d
ild8d(2) r10
IF r30 ild8d(-4) r20
IF r40 ild8d(-4) r20
ild8d(-4) r50
to the MMIO address aperture is undefined; access to the MMIO aperture is
rdest
Operation
r60
r90
Signed 8-bit load with displacement
r70
r80
r60
no change, since guard is false
r80
r90
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
0x000022
0xffffff84
0x00000033
ild8 uld8 uld8d ild8r
Philips Semiconductors
ATTRIBUTES
SEE ALSO
Result
uld8r
–64..63
dmem
7 bits
192
4, 5
1
3