AE_SLAI24S — 2-way 24-bit signed shift left by immediate, with saturation

Instruction Word

Slot
ae2_slot0
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
9876543210
Format ae_format2 - 64 bit(s)0000 1110
AE_SLAI24S 1000000000001011 0 11
ae_fld_shift_d 3210
ae_fld_shift_d0 3210
ae_fld_osa32 43210

Slot
ae_slot2_0
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
9876543210
Format ae_format - 64 bit(s) 1111
AE_SLAI24S0001011
ae_fld_shift_d 3210
ae_fld_shift_d0 3210
ae_fld_osa32 4 3210

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
9876543210
Format x24 - 24 bit(s) 0
AE_SLAI24S 1001100 0100
ae_fld_shift_d 3210
ae_fld_shift_d0 3210
ae_fld_osa32 4 3210

Assembler Syntax

AE_SLAI24S aed0..15(ae_shift_d), aed0..15(ae_shift_d0), 0..31

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern ae_f24x2 AE_SLAI24S(ae_f24x2 d0, immediate sa);

Description

AE_SLAI24S is a two-way signed saturating left shift of bits [23:0] of AE_DR register d0 by immediate, with result signed extended to 32-bits and placed in d. In case of saturation, state AE_OVERFLOW is set to 1.

Implementation Pipeline

In Out
AE_OVERFLOW Wstage, ae_shift_d0 Mstage AE_OVERFLOW Wstage, ae_shift_d Mstage

Protos that use AE_SLAI24S

proto AE_F24X2_SLAI { out ae_f24x2 d, in ae_f24x2 d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_F24_SLAI { out ae_f24 d, in ae_f24 d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_P24F_SLAIS { out ae_p24f d, in ae_p24f d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_P24S_SLAIS { out ae_p24s d, in ae_p24s d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_P24X2F_SLAIS { out ae_p24x2f d, in ae_p24x2f d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_P24X2S_SLAIS { out ae_p24x2s d, in ae_p24x2s d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_SLAI24S { out ae_f24x2 d, in ae_f24x2 d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_SLLI24S { out ae_f24x2 d, in ae_f24x2 d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}
proto AE_SLLISP24S { out ae_p24x2s d, in ae_p24x2s d0, in immediate sa }{}{
AE_SLAI24S d, d0, sa + 0;
}