Carry flag - sub subtract instruction , Electrical Engineering

Carry Flag

CY is  reset  as explained  above.  ( in chapter 1 we have  sen in the 2 complement  methods of subtraction that  the carry  is set  when the result is positive. Here it is  same in step 3  but since  in step 4 microprocessor  complement the  carry flag it is  reset.

In gendered we can say  that after subtraction if the results  is positive  carry flag is reset. And if the  results  is negative carry flag  is set.

Posted Date: 4/4/2013 7:11:13 AM | Location : United States







Related Discussions:- Carry flag - sub subtract instruction , Assignment Help, Ask Question on Carry flag - sub subtract instruction , Get Answer, Expert's Help, Carry flag - sub subtract instruction Discussions

Write discussion on Carry flag - sub subtract instruction
Your posts are moderated
Related Questions
Q Acharge of 0.1Cpasses through an electric source of 6 V from its negative to its positive terminals. Find the change in energy received by the charge. Comment onwhether the charg

Explain the Sequential Circuits? The Logic circuits whose outputs, at any instant of time, depends not merely the present input but as well the past output called sequential ci

explain the alphanumeric codes

Q. In an amplifier, the maximum voltage gain is 1500 and occurs at 1kHz. It falls to 1060.5 at 20kHz and at 20Hz. Determine (i) lower cut-off frequency (ii) upper cut-o

Switching Characteristics During Turn off The techniques  used for turning off a thyristor is known  as  commutation techniques. A  thyristor can be can be  turn off by reducin

A 1000-hp, 2300-V, wye-connected, three-phase, 60-Hz, 20-pole synchronous motor, for which cylindrical-rotor theory can be used and all losses can be neglected, has a synchronous r

Q. A 75-kVA, 230/115-V, 60-Hz transformer was tested with these results: • Open-circuit test: 115 V, 16.3 A, 750 W • Short-circuit test: 9.5 V, 326 A, 1200 W Determine:

Principal of Bipolar junction transistor: A bipolar junction transistor (BJT) is a three-terminal electronic device that constructed of doped semiconductor material and might

Permeability and B-H curve for different magnetic materials Permeability is the ability of a magnetic circuit to create magnetic flux lines in a material or substance that prod

(a) Consider the following transmission line with the reactance X1 placed across the input. It is being driven with a frequency ω such that the length of the line is λ/4. What v