AE_LA16X4.RIC — Load four 16-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_LA16X4.RIC 1000000000011010 1000 0 1
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_LA16X4.RIC 11001111 0 1
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_LA16X4.RIC 11001111 0 1
ae_fld_ls_av 3210
ae_fld_ls_uu 10
s 3210

Assembler Syntax

AE_LA16X4.RIC aed0..15(ae_ls_av), u0..3(ae_ls_uu), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_LA16X4_RIC(ae_int16x4 d /*out*/, ae_valign uu /*inout*/, const ae_int16x4 * a /*inout*/);

Description

AE_LA16X4.RIC loads four 16-bit, potentially uanligned values from memory into the AE_DR register. It forms a virtual address using the address register.

The load instruction reads four, 16-bit values from memory. The data is placed in the AE_DR register d, reversing the order of the four 16-bit values.

Note: the .RIC suffix indicates that the operation is using a circular buffer addressing mode. The updated base address is formed by subtracting 8 from 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_LA16X4.RIC

proto AE_LA16X4.RIC { out ae_int16x4 d, inout ae_valign uu, inout const ae_int16x4 * a }{}{
AE_LA16X4.RIC d, uu, a;
}