Outils pour utilisateurs

Outils du site


back2root:ibm-pc-ms-dos:instr:bt

BT - (386+ only)

BT - Bit Test

The destination bit indexed by the source value is copied into the Carry Flag.

Usage:

	BT	dest,src	;

Modifies flags:

CF

Clocks Size
Operands 808x 286 386 486 Bytes
reg16,immed8 - - 3 3 4-8
mem16,immed8 - - 6 6 4-8
reg16,reg16 - - 3 3 3-7
mem16,reg16 - - 12 12 3-7
back2root/ibm-pc-ms-dos/instr/bt.txt · Dernière modification : 2023/03/03 23:53 de 127.0.0.1