tm1300 NXP Semiconductors, tm1300 Datasheet - Page 356

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

TM1300 Data Book
h_st32d
SYNTAX
FUNCTION
DESCRIPTION
The d value is an opcode modifier, must be in the range –256 and 252 inclusive, and must be a multiple of 4. This
store operation is performed as little-endian or big-endian depending on the current setting of the bytesex bit in the
PCSW.
is undefined, and the MSE (Misaligned Store Exception) bit in the PCSW register is set to 1. Additionally, if the
TRPMSE (TRaP on Misaligned Store Exception) bit in PCSW is 1, exception processing will be requested on the next
interruptible jump.
modification of the addressed memory locations (and the modification of cache if the locations are cacheable). If the
LSB of r guard is 1, the store takes effect. If the LSB of r guard is 0,
particular, the LRU and other status bits in the data cache are not affected.
EXAMPLES
A-70
r10 = 0xcfc, r80 = 0x44332211
r50 = 0, r20 = 0xd0b,
r70 = 0xaabbccdd
r60 = 1, r30 = 0xd0c,
r70 = 0xaabbccdd
The
If
The
[ IF r guard ] h_st32d( d ) r src1 r src2
if r guard then {
}
h_st32d
mem[r src2 + d + (1
mem[r src2 + d + (0
if PCSW.bytesex = LITTLE_ENDIAN then
else
mem[r src2 + d + (3
mem[r src2 + d + (2
h_st32d
h_st32d
bs
bs
Initial Values
3
0
is misaligned (the memory address computed by r src2 + d is not a multiple of 4), the result of
operation stores all 32 bits of r src1 into the memory locations pointed to by the address in r src2 + d .
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
bs)]
bs)]
bs)]
bs)]
PRODUCT SPECIFICATION
r src1 <24:16>
r src1 <31:24>
r src1 <7:0>
r src1 <15:8>
h_st32d(4) r80 r10
IF r50 h_st32d(–8) r70 r20
IF r60 h_st32d(–8) r70 r30
Operation
Hardware 32-bit store with displacement
h_st32d
[0xd00]
[0xd02]
no change, since guard is false
[0xd04]
[0xd06]
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
st32 st32d st16 st16d st8
has no side effects whatever; in
st8d readpcsw ijmpf
0x44, [0xd01]
0x22, [0xd03]
0xaa, [0xd05]
0xcc, [0xd07]
Philips Semiconductors
ATTRIBUTES
SEE ALSO
Result
0xdd
0x33,
0xbb,
0x11
–256..252 by 4
h_st32d
dmem
7 bits
4, 5
n/a
31
2