Write a subroutine to do the following: The inputs to the subroutine are a point
ID: 3807191 • Letter: W
Question
Write a subroutine to do the following: The inputs to the subroutine are a pointer in register Y and an 8-bit number in register B Starting at the address in register Y, clear (set to 0) the number of bytes in memory corresponding to register B For example, if Y is $2000 and B is 8, clear 8 bytes of memory starting at $2000 The subroutine should preserve all registers, and it does not have any return values. Identify each of the following memory technologies: a. Volatile, requires periodic refresh b. Volatile, does not require periodic refresh c. Non-volatile, programmed once d. Non-volatile, erasable using UV light e. Non-volatile, electrically erasable (identify two) Diagram the memory map of the following processor: a. RAM, Flash, and registers: RAM starts at address $0000, 512 bytes Flash starts at address $C000, 4 kbytes Registers start at address $8000, 12 bits of address For the memory map, show the starting and ending address of RAM, Registers, and Flash. b. What should be the initial value of the stack pointer when the processor boots up?Explanation / Answer
2. Identify each of the following memory technologies:
a. Volatile, requires periodic refresh
Answer: DRAM
Explanation: it is one type of a explosive memory. In teaching to recollect the data in DRAM it ought to be refreshed periodically.
b. Volatile, does not require periodic refresh
Answer: SRAM
Explanation: it is volatile memory with the aim of do not feed to exist re-energized once in a while it is opposite meant for DRAM it comprise transistors and holds the data while long like power supply is passed facts is careful to be continuing whilst power is happening in the system
c. Non-volatile, programmed once
Answer: FROM
Explanation: it is also known as single occasion a programmable nonvolatile recall one time programmed is stored enduringly
d. Non-volatile, erasable using UV light
Answer: EROM
Explanation: It is read merely memory that can exist erase through especially violet energy or light plus can be about used
e. Non-volatile, electrically erasable (identify two)
Answer: EEPROM
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