tm1300 NXP Semiconductors, tm1300 Datasheet - Page 452

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

TM1300 Data Book
st8d
SYNTAX
FUNCTION
DESCRIPTION
(Note: pseudo operations cannot be used in assembly files.)
formed from the sum r src1 + d . The value of the opcode modifier d must be in the range -64 and 63 inclusive. This
operation does not depend on the bytesex bit in the PCSW since only a single byte is stored.
defined 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, st8d has no side effects whatever; in particular, the LRU
and other status bits in the data cache are not affected.
EXAMPLES
A-166
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 ] st8d( d ) r src1 r src2
if r guard then
st8d
st8d
st8d
mem[r src1 + d ]
Initial Values
operation stores the least-significant 8-bit byte of r src2 into the memory location pointed to by the address
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>
PRODUCT SPECIFICATION
st8d
st8d(3) r10 r80
IF r50 st8d(-4) r20 r70
IF r60 st8d(-4) r30 r70
to the MMIO address aperture is undefined; access to the MMIO aperture is
Operation
8-bit store with displacement
[0xd03]
no change, since guard is false
[0xcfe]
h_st8d st8 st16 st16d st32
h_st8d
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
0xdd
0x11
Philips Semiconductors
pseudo-op for h_st8d
with the same arguments.
ATTRIBUTES
SEE ALSO
Result
st32d
–64..63
dmem
7 bits
4, 5
n/a
29
2