Please do fast add explanation In class, we have discussed the ultimate ISR as an homage to Claude Shannon'sultimate machine: The ultimate ISR does nothing except clearing the interrupt flag.Below is an ultimate ISR that serves push button S1. You can assume that the IVT hasbeen correctly populated.81 ultimate_ISR_for_S1:828384bit.bjnc#BIT1, &P1IFGfin8586bic.b#BIT1, &P1IFG87 fin:88retWhat will happen when you press push button S1?Give a short but precise answer that explains what happens at the register level.

Step 1:When you press push button S1:Interrupt Flag Set: Pressing S1 sets the bit corresponding to…

Answered: In class, we have discussed the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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write in C for a STM32F446RE microcontroller Write a source library that contains the with the following public functions: void keypadInit(void); /Initiallized the GPIO to read the keypad. uint16_t readKeypad(void); //Returns the state of all of the keypad buttons in the return value at the moment the function is called. void decodeKeypad(uint16_t, char *); //Takes the state of the keypad and returns (by reference) an array of the key's pressed. The library should work with the following main: int main (void) { uint16_t key; char carray[17]; keypadInit(); while(1) { while(!(key = readKeypad())); /*Get which keys pressed*/ decodeKeypad(key, carray); /*What are those keys*/ printf("%s\n",carray); /*Print those keys to screen*/ while(readKeypad() == key); /*Wait for the keypad to change*/ }} Problem 1: Write a library that works with the following pin assignments Row 0 -> PC0 Row 1 -> PC2 Row…
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Write a windows32 assembly language program in visual studio that utilizes a recursive procedure. The main (_MainProc) procedure should: accept, from the user, an integer greater than 0. Guard against invalid values being entered using a loop. call the recurse sub-procedure using the cdecl protocol, receive the results of the sub-procedure, and display the results. NOTE: The main procedure should do nothing more than this! The recurse sub-procedure should (following the cdecl protocol): recursively find the solution for: recurse(0) = 3, and recurse(n) = 5 * recurse(n-1) + 9, for n > 0. return the value back to the calling procedure. Notes: Both the main procedure and recurse sub-procedure must follow the cdecl protocol. I need commented code otherwise it will be not accepted
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Question Write a complete program in Pep/9 machine language (in binary) that loads a word from memory location Ox0045 and adds to it the number Ox0264 and stores the result in memory at address 0X003A.
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Walmart Canada debuted a new checkout system called "fast lane" that lets customers avoid cashiers and registers. Here's how it works: My Walmart users scan items with their phones as they shop. Once a user is finished shopping, they click "checkout" to receive a barcode. Next, the customer scans the order barcode at one of four scanning stations in the fast lane. This action charges the credit card the My Walmart user has on file. Finally, just before exiting the store, customers present their mobile receipts to a worker tending the fast lane. The system has debuted in a newly opened store in Toronto that Walmart says will serve as a prototype for future store renovations. Assume the new fast lane setup will replace 2 old cashier lanes that were staffed by a cashier and bagger on each lane. One worker mans all 4 scanning stations (answering questions, checking for un-scanned items, taking coupons, etc). Checkout on the new lanes takes 2 minutes (customers bag their own orders) while…

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