Slot Inst | 6 3 | 6 2 | 6 1 | 6 0 | 5 9 | 5 8 | 5 7 | 5 6 | 5 5 | 5 4 | 5 3 | 5 2 | 5 1 | 5 0 | 4 9 | 4 8 | 4 7 | 4 6 | 4 5 | 4 4 | 4 3 | 4 2 | 4 1 | 4 0 | 3 9 | 3 8 | 3 7 | 3 6 | 3 5 | 3 4 | 3 3 | 3 2 | 3 1 | 3 0 | 2 9 | 2 8 | 2 7 | 2 6 | 2 5 | 2 4 | 2 3 | 2 2 | 2 1 | 2 0 | 1 9 | 1 8 | 1 7 | 1 6 | 1 5 | 1 4 | 1 3 | 1 2 | 1 1 | 1 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Format x24 - 24 bit(s) | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRA | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||
r | 3 | 2 | 1 | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
t | 3 | 2 | 1 | 0 |
SRA ar, at
extern int XT_SRA(int t);
(please consult the Xtensa ® Instruction Set Architecture Reference Manual for any cross references and additional information)
SRA
arithmetically shifts the contents of address register at
right, inserting the sign of at
on the left, by the number of bit positions specified by SAR
(shift amount register) and writes the result to address register ar
. Typically the SSR
or SSA8B
instructions are used to load SAR
with the shift amount from an address register. Note the result of SRA
is undefined if SAR
>
32
.
sa ← SAR5..0 AR[r] ← ((AR[t]31)32||AR[t])31+sa..sa
In | Out |
---|---|
SAR Estage , art Estage
|
arr Estage
|