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Banks use a Personal Identification Number (PIN) to uniquely identify each customer. Let us assume that our bank has a specified range of acceptable values for each digit in its customers' 5-digit PINs. The table shown below contains the acceptable ranges, where digits are numbered from left to right in the PIN. Then we can see that the PIN 52413 is valid. But the PIN 43534 is invalid because the first digit is out of range. Similarly, 64535 is invalid because of its last digit. Digit Number Range 1 5 to 9 2 2 to 5 3 4 to 8 4 1 to 4 5 3 to 6 Create a procedure named Validate_PIN that receives a pointer to an array of byte containing a 5-digit PIN. Declare two arrays to hold the minimum and maximum range values, and use these arrays to validate each digit of the PIN that was passed to the procedure. If any digit is found to be outside its valid range, immediately return the digit's position (between 1 and 5) in the EAX register. If the entire PIN is valid, return 0 in EAX. Preserve all other register values between calls to the procedure. Write a test program that calls Validate_PIN at least four times, using both valid and invalid byte arrays. Display "Valid" or "Invalid" on the console after each procedure call.

Banks use a Personal Identification Number (PIN) to uniquely identify each customer. Let us assume that our bank has a specified range of acceptable values for each digit in its customers' 5-digit PINs. The table shown below contains the acceptable ranges, where digits are numbered from left to right in the PIN. Then we can see that the PIN 52413 is valid. But the PIN 43534 is invalid because the first digit is out of range. Similarly, 64535 is invalid because of its last digit. Digit Number Range 1 5 to 9 2 2 to 5 3 4 to 8 4 1 to 4 5 3 to 6 Create a procedure named Validate_PIN that receives a pointer to an array of byte containing a 5-digit PIN. Declare two arrays to hold the minimum and maximum range values, and use these arrays to validate each digit of the PIN that was passed to the procedure. If any digit is found to be outside its valid range, immediately return the digit's position (between 1 and 5) in the EAX register. If the entire PIN is valid, return 0 in EAX. Preserve all other register values between calls to the procedure. Write a test program that calls Validate_PIN at least four times, using both valid and invalid byte arrays. Display "Valid" or "Invalid" on the console after each procedure call.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Banks use a Personal Identification Number (PIN) to uniquely identify each customer. Let us assume that our bank has a specified range of acceptable values for each digit in its customers' 5-digit PINs. The table shown below contains the acceptable ranges, where digits are numbered from left to right in the PIN. Then we can see that the PIN 52413 is valid. But the PIN 43534 is invalid because the first digit is out of range. Similarly, 64535 is invalid because of its last digit. Digit Number Range 1 5 to 9 2 2 to 5 3 4 to 8 4 1 to 4 5 3 to 6 Create a procedure named Validate_PIN that receives a pointer to an array of byte containing a 5-digit PIN. Declare two arrays to hold the minimum and maximum range values, and use these arrays to validate each digit of the PIN that was passed to the procedure. If any digit is found to be outside its valid range, immediately return the digit's position (between 1 and 5) in the EAX register. If the entire PIN is valid, return 0 in EAX. Preserve all other register values between calls to the procedure. Write a test program that calls Validate_PIN at least four times, using both valid and invalid byte arrays. Display "Valid" or "Invalid" on the console after each procedure call.
Transcribed Image Text:Banks use a Personal Identification Number (PIN) to uniquely identify each customer. Let us assume that our bank has a specified range of acceptable values for each digit in its customers' 5-digit PINs. The table shown below contains the acceptable ranges, where digits are numbered from left to right in the PIN. Then we can see that the PIN 52413 is valid. But the PIN 43534 is invalid because the first digit is out of range. Similarly, 64535 is invalid because of its last digit. Digit Number Range 1 5 to 9 2 2 to 5 3 4 to 8 4 1 to 4 5 3 to 6 Create a procedure named Validate_PIN that receives a pointer to an array of byte containing a 5-digit PIN. Declare two arrays to hold the minimum and maximum range values, and use these arrays to validate each digit of the PIN that was passed to the procedure. If any digit is found to be outside its valid range, immediately return the digit's position (between 1 and 5) in the EAX register. If the entire PIN is valid, return 0 in EAX. Preserve all other register values between calls to the procedure. Write a test program that calls Validate_PIN at least four times, using both valid and invalid byte arrays. Display "Valid" or "Invalid" on the console after each procedure call.
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