tm1300 NXP Semiconductors, tm1300 Datasheet - Page 451

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

Philips Semiconductors
8-bit store
pseudo-op for h_st8d(0)
SYNTAX
FUNCTION
DESCRIPTION
arguments. (Note: pseudo operations cannot be used in assembly files.)
in r src1 . This operation does not depend on the bytesex bit in the PCSW since only a single byte is stored.
only for 32-bit loads and stores.
modification of the addressed memory location (and the modification of cache if the location is cacheable). If the LSB
of r guard is 1, the store takes effect. If the LSB of r guard is 0, st8 has no side effects whatever; in particular, the LRU
and other status bits in the data cache are not affected.
EXAMPLES
r10 = 0xd00, r80 = 0x44332211
r50 = 0, r20 = 0xd01,
r70 = 0xaabbccdd
r60 = 1, r30 = 0xd02,
r70 = 0xaabbccdd
The
The
The result of an access by
The
[ IF r guard ] st8 r src1 r src2
if r guard then
st8
st8
mem[r src1 ]
st8
operation stores the least-significant 8-bit byte of r src2 into the memory location pointed to by the address
Initial Values
operation is a pseudo operation transformed by the scheduler into an
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
r src2 <7:0>
st8
to the MMIO address aperture is undefined; access to the MMIO aperture is defined
st8 r10 r80
IF r50 st8 r20 r70
IF r60 st8 r30 r70
Operation
PRODUCT SPECIFICATION
[0xd00]
no change, since guard is false
[0xd02]
DSPCPU Operations for TM1300
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
h_st8d st8d st16 st16d
0x11
0xdd
h_st8d(0)
ATTRIBUTES
st32 st32d
SEE ALSO
Result
with the same
dmem
4, 5
n/a
No
29
—
2
st8
A-165