The high byte of the of the destination register is overwritten by the value of the access rights byte and the low order byte is zeroed depending on the selection in the source operand.
The Zero Flag is set if the load operation is successful.
Usage:
INSTR Dest,Src ;
Modifies flags:
ZF
Clocks | Size | |||||
---|---|---|---|---|---|---|
Operands | 808x | 286 | 386 | 486 | Bytes | |
reg16,reg16 | - | 14 | 15 | 11 | 3 | |
reg32,reg32 | - | - | 15 | 11 | 3 | |
reg16,mem16 | - | 16 | 16 | 11 | 3-7 | |
reg32,mem32 | - | - | 16 | 11 | 3-7 |