AE_LA24X2.IC — Loads two packed 24-bit values into the AE_DR register

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_LA24X2.IC 1000000000011000 1000 1 0
ae_fld_ls_av 3210
ae_fld_ls_uu 10
s 3210

Slot
ae_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_format - 64 bit(s) 1111
AE_LA24X2.IC 11010000 0 0
ae_fld_ls_av 3210
ae_fld_ls_uu 10
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_LA24X2.IC 00001101 00 0100
ae_fld_ls_av 3210
ae_fld_ls_uu 10
s 3210

Slot
ae_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_format1 - 64 bit(s)1 1110
AE_LA24X2.IC 11010000 0 0
ae_fld_ls_av 3210
ae_fld_ls_uu 10
s 3210

Assembler Syntax

AE_LA24X2.IC aed0..15(ae_ls_av), u0..3(ae_ls_uu), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_LA24X2_IC(ae_int24x2 d /*out*/, ae_valign uu /*inout*/, const void * a /*inout*/);

Description

AE_LA24X2.IC loads two packed 24-bit value from memory, sign extends each one and puts the resulting 64-bits into the AE_DR register d. The data is stored packed in memory, meaning that it occupies only 48-bits in memory. It forms a virtual address using the address register.

Note: the .IC suffix indicates that the operation is using a circular buffer addressing mode. The updated base address is formed by adding 6 to the base address with circular wrap-around.

Implementation Pipeline

In Out
AE_CEND0 Estage, AE_CBEGIN0 Estage, ae_ls_uu Wstage, ars Estage ae_ls_av Wstage, ae_ls_uu Wstage, ars Estage

Protos that use AE_LA24X2.IC

proto AE_LA24X2.IC { out ae_int24x2 d, inout ae_valign uu, inout const void * a }{}{
AE_LA24X2.IC d, uu, a;
}