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.