Write (in pseudocode) an implementation of virtual clocks, including the queuing and management of timer requests for the kernel and applications. Assume that the hardware provides three timer channels.

b) Draw the state diagram of the machine that performs the following operation: The machine turns on with output at '0' thanks to asynchronous clear. At each clock trigger, the machine reads the input X. If the input is read at '0' for three times in a row, the output becomes '1', and it does not return to the initial state until three '1' are read in a row.

Answer the following questions related to AVR Timer/counter: (Table1) 3.1. Write an AVR program that flashes an LED (PC4) every 10 ms using CPU clock frequency of 100 kHz and TIMERO. Use Timer/Countero Overflow Flag (TOVO) in your code. Write an AVR program that flashes an LED (PC0) every 5 seconds using XTAL clock frequency of 16MHZ and Timer1. 3.2. Use Timer/Counter1 Overflow Flag (TOV1) in your code. 1. TCNTO: Timer / Counter Register 0 2. TCCRO: Timer / Counter Control register 0 4 FOCO WGMO0 COMO1 COMOO WGM01 Cs02 CS01 cs00 Cs12 CS11 Cs10 Description No ic ksource (TimeriCounter stopped). 1 cko1 (No prescaling) clkoe (From prescaler) eko64 (From prescaler) ciko256 (From prescaler) ciko/1024 (From prescaler) External clock source on T1 pin. Clock on falling edge. External clock source on T1 pin. Clock on rising edge. 1 3. TIFRO: Timer Counter Interrupt Flag register OCF2 TOV2 ICF1 OCFIA OCF1B TOVI OCFO TOVO

Write (in pseudocode) an implementation of virtual clocks, including the queuing and management of timer requests for the kernel and applications. Assume that the hardware provides three timer channels.

For your discussion question response, please provide a response to each of the following questions.  Make sure that you include the question followed by your answer to the question in your posting. In the description of the Hack machine language in chapter 4, it is stated that in well-written programs a C-instruction that may cause a jump should not contain a reference to M, and vice versa. Discuss why this should be avoided. Research the concept of interrupts in a computer. You may want to look into how the Z80 microprocessor handles interrupt. A good source of Z80 information is Zaks, R. (1980). Programming the Z80. Sybex. Download the pdf. FYI, The Z80 8 bit microprocessor has been in production for forty years. Knowledge of the Z80 is a great lead-in for further study in more complicated machines.

When an interrupt occurs, the CPU suspends the current process and handles the problem. In technical terms, this is known as interrupt service. What is the cause for the current process's halt? Consider completing the task now and dealing with the interruption afterwards.

Write (in pseudocode) an implementation of virtual clocks, including the queuing and management of timer requests for the kernel and applications. Assume that the hardware provides three timer channels.