|
POOL32S 010110 |
rt |
rs |
sa |
0 00 |
DSRA 010000000 |
|
6 |
5 |
5 |
5 |
2 |
9 |
DSRA rt, rs, sa |
microMIPS64 |
Doubleword Shift Right Arithmetic |
Doubleword Shift Right Arithmetic
To execute an arithmetic right-shift of a doubleword by a fixed amount-0 to 31 bits.
GPR[rt] = GPR[rs] >> sa (arithmetic)
The 64-bit doubleword contents of GPR rs are shifted right, duplicating the sign bit (63) into the emptied bits; the result is placed in GPR rt. The bit-shift amount in the range 0 to 31 is specified by sa.
s = 0 || sa GPR[rt] = (GPR[rs]63)s || GPR[rs]63..s
Reserved Instruction