AE_VLDL32T — 32-bit table entry load for variable-length decode

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_VLDL32T 00001110 0100
r 3210
t 3210
s 3210

Assembler Syntax

AE_VLDL32T b0..15(br), a0..15(art), a0..15(ars)

C Syntax

#include <xtensa/tie/xt_hifi2.h>

extern void AE_VLDL32T(xtbool done /*out*/, unsigned symbol /*out*/, const unsigned * a);

Description

AE_VLDL32T is a 32-bit table entry load for variable-length decode. Given a pointer a0 to a decoding table of 32-bit entries, an entry is loaded and parsed from a0[AE_NEXTOFFSET]. If the table entry loaded completes the current decoding operation, b is set to true and a is set to the decoded symbol value. Otherwise b is set to false.

Implementation Pipeline

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

Protos that use AE_VLDL32T

proto AE_VLDL32T { out xtbool done, out uint32 symbol, in const uint32 * a }{}{
AE_VLDL32T done, symbol, a;
}