Complete 8086 instruction set[SAR]


Operands: memory, immediate REG, immediate memory, CL REG, CL Shift Arithmetic operand1 Right. The number of shifts is set by operand2. Algorithm: Shift all bits right, the bit that goes off is set to CF. The sign bit that is inserted to the left-most position has the same value as before shift. Example: MOV AL, 0E0h ; AL = 11100000b SAR AL, 1 ; AL = 11110000b, CF=0. MOV BL, 4Ch ; BL = 01001100b SAR BL, 1 ; BL = 00100110b, CF=0. RET Flags: C O r r OF=0 if first operand keeps original sign.