4 Please explain solve the following problems step by step

4. Please explain & solve the following problems step by step to receive a good rating! Thanks!

Assuming that the clock frequency of the microcontroller f = 10 MHz. The main program given below calls a general purpose delay subroutine that receives the Length of the delay to implement as a 16-bit number in Register that the Length can be any number between 1 and 10,000. The main program is as follows. ORG $2000 MAIN: LDY #Length BSR DELAY SWI;Subroutine ORG S3000 DELAY: LDX #10000 Loop 1: NOP NOP DEX BNE DEY BNE DELAY RTS Ignore any overheads and write all your calculations on this page i. Which is the Minimum delay implemented by the general purpose subroutine? a) 10 ms b) 6000ms c) 6000us d) 20ms e) 2ms ii. Which is the maximum delay that can be implemented when the main program calls the subroutine? a) 600 min b) 1 hour c) 60ms d) 1 minute e) 1ms iii. Which value should be the Length in order to measure a 12 second delay? a) 1000 b) 2000 c) 100 d) 150 e) 20 iv. If both the values of Register X and Register Y were changed to 65535 what would be the value of the delay implemented? a) 25.769 b) 1000.34 s, c) 1500.3 d) 1500.1 s e) 2576.9 s

Solution

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