TILERELEASE

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

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Source: Intel® 64 and IA-32 Architectures Software Developer's Manual, Combined Volumes (Order Number 325462-091US, March 2026)
Generated: 7-6-2026