AE_S16X4.RIC — Store four 16-bit values from 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_S16X4.RIC 1000000000011000 1011 0110
ae_fld_ls_v 3210
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_S16X4.RIC 11011001 0101
ae_fld_ls_v 3210
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_S16X4.RIC 11011001 0101
ae_fld_ls_v 3210
s 3210

Assembler Syntax

AE_S16X4.RIC aed0..15(ae_ls_v), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_S16X4_RIC(ae_int16x4 d, ae_int16x4 * a /*inout*/);

Description

AE_S16X4.RIC stores four 16-bit values to memory from the AE_DR register. It forms a virtual address by adding the contents of the address register and an immediate value within the range {-64,...,56} encoded in the instruction word.

The store instruction writes four, 16-bit values to memory. The data is taken from 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_v Mstage, ars Estage ars Estage

Protos that use AE_S16X4.RIC

proto AE_S16X4.RIC { in ae_int16x4 d, inout ae_int16x4 * a }{}{
AE_S16X4.RIC d, a;
}