AE_NEG16S — 4-way 16-bit negation 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_NEG16S 1000000000011010 1011 1001
ae_fld_arth_v 3210
ae_fld_arth_v1 3210

Slot
ae2_slot1
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_NEG16S 1101 0100 11111011
ae_fld_arth_v 3210
ae_fld_arth_v1 3210

Slot
ae_slot1
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_NEG16S 11111011 0111
ae_fld_arth_v 3210
ae_fld_arth_v1 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_NEG16S 00101011 0110 0100
ae_fld_arth_v 3210
ae_fld_arth_v1 3210

Slot
ae_slot1
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_format1 - 64 bit(s)1 1110
AE_NEG16S 11111011 0111
ae_fld_arth_v 3210
ae_fld_arth_v1 3210

Slot
ae_slot2_1
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_format1 - 64 bit(s)1 1110
AE_NEG16S 1000111 0101
ae_fld_arth_v 3210
ae_fld_arth_v1 3210

Assembler Syntax

AE_NEG16S aed0..15(ae_arth_v), aed0..15(ae_arth_v1)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern ae_f16x4 AE_NEG16S(ae_f16x4 d0);

Description

AE_NEG16S is an element-wise 16-bit saturating negation of an AE_DR register d0, with result { sat(16'b0 - d0[63:48]), sat(16'b0 - d0[47:32]), sat(16'b0 - d0[31:16]), sat(1 'b0 - d0[15:0]) } placed in d.

Implementation Pipeline

In Out
ae_arth_v1 Mstage ae_arth_v Mstage

Protos that use AE_NEG16S

proto AE_F16X4_NEGS { out ae_f16x4 d, in ae_f16x4 d0 }{}{
AE_NEG16S d, d0;
}
proto AE_F16_NEGS { out ae_f16 d, in ae_f16 d0 }{}{
AE_NEG16S d, d0;
}
proto AE_NEG16S { out ae_f16x4 d, in ae_f16x4 d0 }{}{
AE_NEG16S d, d0;
}
proto AE_NEG16S_scalar { out ae_int16 p, in ae_int16 d0 }{}{
AE_NEG16S p, d0;
}
proto AE_NEG16S_vector { out ae_int16x4 p, in ae_int16x4 d0 }{}{
AE_NEG16S p, d0;
}