AE_SUB64 — 64-bit subtraction

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_SUB64 1000000000010100 0110
ae_fld_arth_v 3210
ae_fld_arth_v0 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_SUB64 1101 1100 0111
ae_fld_arth_v 3210
ae_fld_arth_v0 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_SUB64 11110100
ae_fld_arth_v 3210
ae_fld_arth_v0 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_SUB64 01001101 0100
ae_fld_arth_v 3210
ae_fld_arth_v0 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_SUB64 11110100
ae_fld_arth_v 3210
ae_fld_arth_v0 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_SUB64 0101011
ae_fld_arth_v 3210
ae_fld_arth_v0 3210
ae_fld_arth_v1 3210

Assembler Syntax

AE_SUB64 aed0..15(ae_arth_v), aed0..15(ae_arth_v0), aed0..15(ae_arth_v1)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern ae_int64 AE_SUB64(ae_int64 d0, ae_int64 d1);

Description

AE_SUB64 is a 64-bit subtraction of two AE_DR registers d0 and d1, with result placed in d.

Implementation Pipeline

In Out
ae_arth_v0 Mstage, ae_arth_v1 Mstage ae_arth_v Mstage

Protos that use AE_SUB64

proto AE_INT64_SUB { out ae_int64 d, in ae_int64 d0, in ae_int64 d1 }{}{
AE_SUB64 d, d0, d1;
}
proto AE_Q56S_SUB { out ae_q56s d, in ae_q56s d0, in ae_q56s d1 }{}{
AE_SUB64 d, d0, d1;
}
proto AE_SUB64 { out ae_int64 d, in ae_int64 d0, in ae_int64 d1 }{}{
AE_SUB64 d, d0, d1;
}
proto AE_SUB64X2_vector { out ae_int64x2 d, in ae_int64x2 d0, in ae_int64x2 d1 }{}{
AE_SUB64 d->d1, d0->d1, d1->d1;
AE_SUB64 d->d0, d0->d0, d1->d0;
}
proto AE_SUBQ56 { out ae_q56s d, in ae_q56s d0, in ae_q56s d1 }{}{
AE_SUB64 d, d0, d1;
}