5. I copied the following out of the Arduino programming guide. Finish filling in the table showing me how to replace the following function calls to pinMode and digitalWrite with simple C code and assembly code. Make sure you calculate the appropriate masks. PORTD maps to Arduino digital pins 0 to 7 DDRD The Port D Data Direction Register - read/write (IO Address 0x0A, Memory Address 0x002A) PORTD The Port D Data Register - read/write (10 Address 0x0B, Memory Address 0x002B) (library functions) C-Code (using & and (memory mapped IO) pinMode(4, OUTPUT); masks) (legacy IO assembly) asm volatile( "sbi 0x0A, 4 \n\t" ); //method 4, memory mapped io asm volatile ( "lds r24, 0x002A \n\t" "ori r24, 0x10 \n\t "sts 0x002A, r24 \n\t" digitalWrite(4, HIGH); PORTD PORTD | 0x10 digitalWrite(4, LOW); asm volatile( "cbi 0x0B, 4 \n\t" ); //method 4, memory mapped io asm volatile( lds r24, 0x002B \n\t" "andi r24, 0xEF \n\t" *sts 0x0028, r24 \n\t ";

5. I copied the following out of the Arduino programming guide. Finish filling in the table showing me how to replace the following function calls to pinMode and digitalWrite with simple C code and assembly code. Make sure you calculate the appropriate masks. PORTD maps to Arduino digital pins 0 to 7 DDRD The Port D Data Direction Register - read/write (IO Address 0x0A, Memory Address 0x002A) PORTD The Port D Data Register - read/write (10 Address 0x0B, Memory Address 0x002B) (library functions) C-Code (using & and (memory mapped IO) pinMode(4, OUTPUT); masks) (legacy IO assembly) asm volatile( "sbi 0x0A, 4 \n\t" ); //method 4, memory mapped io asm volatile ( "lds r24, 0x002A \n\t" "ori r24, 0x10 \n\t "sts 0x002A, r24 \n\t" digitalWrite(4, HIGH); PORTD PORTD | 0x10 digitalWrite(4, LOW); asm volatile( "cbi 0x0B, 4 \n\t" ); //method 4, memory mapped io asm volatile( lds r24, 0x002B \n\t" "andi r24, 0xEF \n\t" *sts 0x0028, r24 \n\t ";

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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