NS32FX161-15 Datasheet, PDF (46/102 Pages) National Semiconductor (TI) – Advanced Imaging/Communication Signal Processors

3 0 Functional Description (Continued)
SXH Store X Vector Pointer Higher Half
The SXH instruction stores the contents of the higher-half of
the X register into the word at mem addr
Syntax
SXH addr
15
11 10
0
11101
addr
Operation
mem aligned addr 4 X high
Note Accumulator is not affected
SY Store Y Vector Pointer
The SY instruction stores the contents of the Y register into
the double-word at aligned addr
Syntax
SY aligned addr
15
01011
Operation
11 10
0
aligned addr
(vector ptr) mem aligned addr 4 Y
Note Accumulator is not affected
SZ Store Z Vector Pointer
The SZ instruction stores the contents of the Z register into
the double-word at aligned addr
Syntax
SZ aligned addr
15
01100
Operation
11 10
0
aligned addr
(vector pointer mem aligned addr 4 Z
Note Accumulator is not affected
SA Store Accumulator
The SA instruction stores the contents of the A accumulator
as a complex value into mem aligned addr
Syntax
SA aligned addr
15
01101
Operation
11 10
0
aligned addr
(complex mem aligned addr 4 (complex) A
Notes Bits 15 through 30 of the real and imaginary parts of the accumulator
are placed in the real and imaginary parts of the complex value at
mem aligned addr
Accumulator is not affected
SEA Store Extended Accumulator
The SEA stores the contents of bits 0 – 30 of the imaginary
accumulator as an extended value into a DSPM memory
location specified by Z 0
Bit 0 of this memory location is loaded with ‘‘0’’
Syntax
EXEC SEA
15
10000
Operation
11 10
0
101 0011 0110
extended Z
Z 0 4 (extended) A
Note Accumulator is not affected
SREPEAT Store Repeat Register
The SREPEAT instruction stores the contents of the
REPEAT register in the double-word at mem aligned
addr
Syntax
SREPEAT aligned addr
15
01110
Operation
11 10
0
aligned addr
(repeat reg) mem aligned addr 4 REPEAT
Note Accumulator is not affected
SOVF Store and Clear OVF Register
The SOVF instruction stores the contents of the OVF regis-
ter in the word at mem addr The OVF register is then
cleared to ‘‘0’’
Syntax
SOVF addr
15
11 10
0
01001
addr
Operation
(ovf reg) mem aligned addr 4 OVF
Note Accumulator is not affected
3 4 5 6 Adjust Register Instructions
INCX Increment X Vector Pointer
The INCX instruction increments the X vector pointer by one
element according to the increment and the wrap
Syntax
EXEC INCX
15
11 10
0
10000
100 0101 1001
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