AE_MULA32.LH — 32x32-bit signed integer MAC with 64-bit result, with no saturation.

Instruction Word

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_MULA32.LH 1100 0100 0011
ae_fld_mul_q0 3210
ae_fld_mul_d0 3210
ae_fld_mul_d1 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_MULA32.LH 00011010
ae_fld_mul_q0 3210
ae_fld_mul_d0 3210
ae_fld_mul_d1 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_MULA32.LH 00011010
ae_fld_mul_q0 3210
ae_fld_mul_d0 3210
ae_fld_mul_d1 3210

Assembler Syntax

AE_MULA32.LH aed0..15(ae_mul_q0), aed0..15(ae_mul_d0), aed0..15(ae_mul_d1)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_MULA32_LH(ae_int64 d /*inout*/, ae_int32x2 d0, ae_int32x2 d1);

Description

AE_MULA32.LH is a 32x32-bit signed integer MAC with 64-bit result with no saturation. The extension LH indicates that the multiplication result is the L element of the first AE_DR operand times the H element of the second AE_DR operand.

Implementation Pipeline

In Out
ae_mul_q0 Wstage, ae_mul_d0 Mstage, ae_mul_d1 Mstage ae_mul_q0 Wstage

Protos that use AE_MULA32.LH

proto AE_MULA24.HL { inout ae_int64 d, in ae_int24x2 d0, in ae_int24x2 d1 }{}{
AE_MULA32.LH d, d1, d0;
}
proto AE_MULA24.LH { inout ae_int64 d, in ae_int24x2 d0, in ae_int24x2 d1 }{}{
AE_MULA32.LH d, d0, d1;
}
proto AE_MULA32.HL { inout ae_int64 d, in ae_int32x2 d0, in ae_int32x2 d1 }{}{
AE_MULA32.LH d, d1, d0;
}
proto AE_MULA32.LH { inout ae_int64 d, in ae_int32x2 d0, in ae_int32x2 d1 }{}{
AE_MULA32.LH d, d0, d1;
}
proto AE_MULAP24S.HL { inout ae_q56s d, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_MULA32.LH d, d1, d0;
}
proto AE_MULAP24S.LH { inout ae_q56s d, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_MULA32.LH d, d0, d1;
}
proto AE_MULAS56P24S.HL { inout ae_q56s d, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_MULA32.LH d, d1, d0;
AE_SATQ56S d, d;
}
proto AE_MULAS56P24S.LH { inout ae_q56s d, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_MULA32.LH d, d0, d1;
AE_SATQ56S d, d;
}