TBM Instructions

9 x86 instructions in this extension - click any row for encoding, pseudocode, and full documentation.

Mnemonic ⇅	Syntax	Format ⇅	Summary
blcfill	BLCFILL r32, r/m32	TBM	Sets all bits below the lowest clear bit (x & (x+1)).
blci	BLCI r32, r/m32	TBM	Sets all bits to 0 except the lowest set bit inverted (x \| ~(x+1)).
blcic	BLCIC r32, r/m32	TBM	Isolates lowest clear bit (~x & (x+1)).
blcmsk	BLCMSK r32, r/m32	TBM	Creates mask from lowest clear bit (x ^ (x+1)).
blcs	BLCS r32, r/m32	TBM	Sets lowest clear bit (x \| (x+1)).
blsfill	BLSFILL r32, r/m32	TBM	Sets all bits below lowest set bit ((x-1) \| x).
blsic	BLSIC r32, r/m32	TBM	Isolates lowest set bit and complements (~x \| (x-1)).
t1mskc	T1MSKC r32, r/m32	TBM	Creates mask from trailing ones (~x \| (x+1)).
tzmsk	TZMSK r32, r/m32	TBM	Creates mask from trailing zeros (~x & (x-1)).