Lahf Mov Bh Ah Bh 1fh Ah Oeoh Mov 200h Bh Sahf Q37119301

Describe the operation performed by each instruction.
LAHF MOV BH, AH AND BH,1FH AND AH, OEOH MOV [200H], BH SAHF Show transcribed image text LAHF MOV BH, AH AND BH,1FH AND AH, OEOH MOV [200H], BH SAHF

Solution

LAHF – Load Status Flags into AH Register

• The LAHF instruction transfers lower byte of the flags registerinto the AH register. The bits are sign, zero, auxiliary carry,parity and carry at 7, 6, 4, 2 and 0 bits respectively. Theremaining bits (5,3 and 1) are undefined.
• Operation > SF:ZF:xx:AF:xx:PF:xx:CF ->
  OR

   

  

  OR