Amachine instruction swap(r, x) interchanges the contents of the register r and the memory location x in one instruction cycle. implement the pb and vb operations on binary semaphore using swap. (b) a machine instruction test-set-branch, tsb(x, l), where x is a memory location and l is a branch label, performs the following function in one instruction cycle: if (x == 0) branch to l else x = 0 implement the pb and vb operations on binary semaphore using tsb .

Raymond ozzie, the software designer who was critical in the development of lotus notes, was able to dictate the terms under which ibm acquired lotus. this illustrates that he had bargaining power based on the cost required by the firm to replace him.

The use of idps sensors and analysis systems can be quite complex. one very common approach is to use an open source software program called running on an open source unix or linux system that can be managed and queried from a desktop computer using a client interface.

You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form.you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used.hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?