AE_VLEL32T — 32-bit table entry load for variable-length encode, indicating if table load complete

Instruction Word

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_VLEL32T 11010000 0100
r 3210
t 3210
s 3210

Assembler Syntax

AE_VLEL32T b0..15(br), a0..15(art), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_VLEL32T(xtbool done /*out*/, unsigned symbol /*inout*/, const unsigned * a);

Description

AE_VLEL32T is a 32-bit table entry load for variable-length encode. Given a pointer a0 to an encoding table of 32-bit entries, an entry is loaded and parsed from a0[a]. If the table entry loaded completes the current encoding operation, b is set to true, otherwise b is set to false and a is set to the appropriate index for the next lookup to continue the encoding operation. In either case, the appropriate codeword bits are pushed onto the output bit stream.

Implementation Pipeline

In Out
art Estage, ars Estage AE_BITSUSED Mstage, AE_NEXTOFFSET Mstage, br Mstage, art Wstage

Protos that use AE_VLEL32T

proto AE_VLEL32T { out xtbool done, inout uint32 symbol, in const uint32 * a }{}{
AE_VLEL32T done, symbol, a;
}