AE_LT32 — 2-way 32-bit signed less-than comparison

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_LT32 1000000000010101 1111 0
r2 210
ae_fld_cmpp_v0 3210
ae_fld_cmpp_v1 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_LT32 01010100 1 0100
r2 210
ae_fld_cmpp_v0 3210
ae_fld_cmpp_v1 3210

Slot
ae_slot2_1
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_LT32 1000011 0
r2 210
ae_fld_cmpp_v0 3210
ae_fld_cmpp_v1 3210

Assembler Syntax

AE_LT32 b0..15(br2), aed0..15(ae_cmpp_v0), aed0..15(ae_cmpp_v1)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern xtbool2 AE_LT32(ae_int32x2 d0, ae_int32x2 d1);

Description

AE_LT32 is an element-wise signed less-than comparison on two AE_DR registers d0 and d1. Results go to a pair bhl of adjacent Boolean registers; clear or set Boolean register pair bhl. bhl[0] is set if and only if the low element of d0 is less than the low element of d1. Similarly, bhl[1] is set if and only if the high element of the first input AE_DR register is less than the high element of the second input AE_DR register.

Implementation Pipeline

In Out
ae_cmpp_v0 Mstage, ae_cmpp_v1 Mstage br2 Mstage

Protos that use AE_LT32

proto AE_F24X2_GT_F24X2 { out xtbool2 b, in ae_f24x2 d0, in ae_f24x2 d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_F24X2_LT_F24X2 { out xtbool2 b, in ae_f24x2 d0, in ae_f24x2 d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_F32X2_GT_F32X2 { out xtbool2 b, in ae_f32x2 d0, in ae_f32x2 d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_F32X2_LT_F32X2 { out xtbool2 b, in ae_f32x2 d0, in ae_f32x2 d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_INT24X2_GT_INT24X2 { out xtbool2 b, in ae_int24x2 d0, in ae_int24x2 d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_INT24X2_LT_INT24X2 { out xtbool2 b, in ae_int24x2 d0, in ae_int24x2 d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_INT32X2_GT_INT32X2 { out xtbool2 b, in ae_int32x2 d0, in ae_int32x2 d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_INT32X2_LT_INT32X2 { out xtbool2 b, in ae_int32x2 d0, in ae_int32x2 d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_LT32 { out xtbool2 bhl, in ae_int32x2 d0, in ae_int32x2 d1 }{}{
AE_LT32 bhl, d0, d1;
}
proto AE_LTP24S { out xtbool2 bhl, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_LT32 bhl, d0, d1;
}
proto AE_MAXB32 { out ae_int32x2 d, in ae_int32x2 d0, in ae_int32x2 d1, out xtbool2 bhl }{}{
AE_MAX32 d, d0, d1;
AE_LT32 bhl, d1, d0;
}
proto AE_MAXBP24S { out ae_p24x2s d, in ae_p24x2s d0, in ae_p24x2s d1, out xtbool2 bhl }{}{
AE_MAX32 d, d0, d1;
AE_LT32 bhl, d1, d0;
}
proto AE_MINB32 { out ae_int32x2 d, in ae_int32x2 d0, in ae_int32x2 d1, out xtbool2 bhl }{}{
AE_MIN32 d, d0, d1;
AE_LT32 bhl, d0, d1;
}
proto AE_MINBP24S { out ae_p24x2s d, in ae_p24x2s d0, in ae_p24x2s d1, out xtbool2 bhl }{}{
AE_MIN32 d, d0, d1;
AE_LT32 bhl, d0, d1;
}
proto AE_MOVGEZ_32 { inout ae_int32 a, in ae_int32 b, in ae_int32 test_value }{ae_int32 zero, xtbool2 bhl}{
AE_MOVI zero, 0;
AE_LT32 bhl, test_value, zero;
AE_MOVF32X2 a, b, bhl;
}
proto AE_MOVLTZ_32 { inout ae_int32 a, in ae_int32 b, in ae_int32 test_value }{ae_int32 zero, xtbool2 bhl}{
AE_MOVI zero, 0;
AE_LT32 bhl, test_value, zero;
AE_MOVT32X2 a, b, bhl;
}
proto AE_P24X2F_GT_P24X2F { out xtbool2 b, in ae_p24x2f d0, in ae_p24x2f d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_P24X2F_GT_P24X2S { out xtbool2 b, in ae_p24x2f d0, in ae_p24x2s d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_P24X2F_LT_P24X2F { out xtbool2 b, in ae_p24x2f d0, in ae_p24x2f d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_P24X2F_LT_P24X2S { out xtbool2 b, in ae_p24x2f d0, in ae_p24x2s d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_P24X2S_GT_P24X2F { out xtbool2 b, in ae_p24x2s d0, in ae_p24x2f d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_P24X2S_GT_P24X2S { out xtbool2 b, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_LT32 b, d1, d0;
}
proto AE_P24X2S_LT_P24X2F { out xtbool2 b, in ae_p24x2s d0, in ae_p24x2f d1 }{}{
AE_LT32 b, d0, d1;
}
proto AE_P24X2S_LT_P24X2S { out xtbool2 b, in ae_p24x2s d0, in ae_p24x2s d1 }{}{
AE_LT32 b, d0, d1;
}