TILERELEASE - Release Tile

Opcode/ Instruction

Op/ En

64/32 bit Mode Support

CPUID Feature Flag

Description

VEX.128.NP.0F38.W0 49 C0 TILERELEASE

A

V/N.E.

AMX-TILE

Initialize TILECFG and TILEDATA.

Instruction Operand Encoding

Op/En

Tuple

Operand 1

Operand 2

Operand 3

Operand 4

A

N/A

N/A

N/A

N/A

N/A

Description

This instruction returns TILECFG and TILEDATA to the INIT state.

Any attempt to execute the TILERELEASE instruction inside an Intel TSX transaction will result in a transaction abort.

Operation 

zero_all_tile_data()
tilecfg := 0// equivalent to 64B of zeros 
TILES_CONFIGURED := 0

Intel C/C++ Compiler Intrinsic Equivalent 

TILERELEASE void _tile_release(void);

Flags Affected

None.

Exceptions

AMX-E6; see Section 2.10, "Intel® AMX Instruction Exception Classes," for details.