tm1300 NXP Semiconductors, tm1300 Datasheet - Page 478

• Manufacturer Part Number: tm1300
• Description: Tm-1300 Media Processor
• Manufacturer: NXP Semiconductors

TM1300 Data Book
uld8d
SYNTAX
FUNCTION
DESCRIPTION
bits, and writes the result in r dest . 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 r guard is 1, r dest is written and
the data cache status bits are updated if the addressed location is cacheable. if the LSB of r guard is 0, r dest is not
changed and
EXAMPLES
A-192
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 r guard ] uld8d( d ) r src1
if r guard then
r dest
uld8d
uld8d
Initial Values
zero_ext8to32(mem[r src1 + d ])
uld8d
operation loads the 8-bit memory value from the address computed by r src1 + d , zero extends it to 32
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
has no side effects whatever.
PRODUCT SPECIFICATION
uld8d
uld8d(2) r10
IF r30 uld8d(-4) r20
IF r40 uld8d(-4) r20
uld8d(-4) r50
to the MMIO address aperture is undefined; access to the MMIO aperture is
r dest
Operation
Unsigned 8-bit load with displacement
r60
r90
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
0x00000084
0x00000033
uld8 ild8 ild8d uld8r
Philips Semiconductors
ATTRIBUTES
SEE ALSO
Result
ild8r
–64..63
dmem
7 bits
4, 5
8
1
3