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hw2 - University of Florida EEL 4744 Dept of Electrical...

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University of Florida EEL 4744 Dept. of Electrical & Computer Engineering Page 1/2 Homework 2 Note: HW is due at the end of class meeting. 1. Do the following 8-bit binary additions and for each case give the expected result in the Carry, Zero, Sign and Overflow flags. Assuming all operands coded as 2’s complement numbers (a) 10100011 (b) 01110001 (c) 01111111 +00111011 +01000000 +10000000 2. Name five ways to address an operand. 3. What kind of addressing mode is used to transfer data from one register to another? 4. What addressing mode is best to use to access several sequential elements in a data array - immediate, direct, indexed, or register. 5. What address mode is best to use when you want to compare what is in the A register with a constant? [Choose one]- immediate, direct, extended, or indexed. 6. A pointer is [Choose one] (a) an area in memory used for address storage; (b) a memory address held in a register; (c) a subroutine address held in the stack pointer. 7. A register indirect address instruction [Choose one] (a) has the address of the operand
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