AE_CVT48A32 — Convert a 1.31-bit fraction to 17.47-bits

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_CVT48A32 1000000000011010 1100 0010
ae_fld_ar_to_dr_v 3210
s 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_CVT48A32 00111100 00010100
ae_fld_ar_to_dr_v 3210
s 3210

Slot
ae_minislot2
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_mini0 - 64 bit(s)01000000000000000000000 1110
AE_CVT48A32 1101101 0000
ae_fld_ar_to_dr_v 3210
s 3210

Assembler Syntax

AE_CVT48A32 aed0..15(ae_ar_to_dr_v), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern ae_f64 AE_CVT48A32(unsigned a0);

Description

AE_CVT48A32 convert a signed 1.31-bit value in an AR register a to a 17.47-bit value in AE_DR register d.

Implementation Pipeline

In Out
ars Mstage ae_ar_to_dr_v Mstage

Protos that use AE_CVT48A32

proto AE_CVT48A32 { out ae_f64 d, in uint32 a0 }{}{
AE_CVT48A32 d, a0;
}
proto AE_CVTQ48A32S { out ae_q56s d, in uint32 a }{}{
AE_CVT48A32 d, a;
}