PORTD- The Port D Data Register - read/write (library functions) C-Code (using & and pinMode(4, OUTPUT); masks) | digitalWrite(4, HIGH); PORTD PORTD | 0x10 digitalWrite(4, LOW); (10 Address 0x0B, Memory Address 0x002B) (legacy 10 assembly) asm volatile( "sbi ex0A, 4 \n\t" ); (memory mapped IO) //method 4, memory mapped io asm volatile ( ); lds r24, 0x002A \n\t "ori r24, 0x10 \n\t "sts 0x002A, r24 \n\t asm volatile( "cbi 0x08, 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
PORTD- The Port D Data Register - read/write (library functions) C-Code (using & and pinMode(4, OUTPUT); masks) | digitalWrite(4, HIGH); PORTD PORTD | 0x10 digitalWrite(4, LOW); (10 Address 0x0B, Memory Address 0x002B) (legacy 10 assembly) asm volatile( "sbi ex0A, 4 \n\t" ); (memory mapped IO) //method 4, memory mapped io asm volatile ( ); lds r24, 0x002A \n\t "ori r24, 0x10 \n\t "sts 0x002A, r24 \n\t asm volatile( "cbi 0x08, 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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