1 byte = 8 bits1K = 21G = 2 3. Assume you have…
1 byte = 8 bits 1K = 2 1G = 2 3. Assume you have the following MARIE program. Answer the following questions. a. What are the contents of the AC at the end of the program? b. What are the contents of the symbol table?
Answer
1. The given information about the conversions and their equations is correct:
– 1 byte is equal to 8 bits. This means that 1 byte can represent 8 binary digits or bits.
– 1K is equal to 2^10 bytes. In computing, K is often used as an abbreviation for kilobyte, and the binary equivalent of 1 kilobyte is 2^10 (1024) bytes.
– 1G is equal to 2^30 bytes. Similarly, G is often used as an abbreviation for gigabyte, and the binary equivalent of 1 gigabyte is 2^30 (1073741824) bytes.
2. Regarding the assumption about the MARIE program and the two questions asked:
a. To determine the contents of the AC (accumulator) at the end of the program, we need to examine the program instructions and their effects on the AC. It’s important to note that the program itself has not been provided in the context, so we’ll discuss a general approach without specific instructions.
In MARIE (Machine Architecture that is Really Intuitive and Easy) architecture, the AC is a special register used for storing data during computation. It holds the interim results of arithmetic and logical operations.
To determine its final value at the end of the program, you would need to analyze each instruction in the program and its impact on the AC. The value stored in the AC is influenced by the instructions executed, data input, and the initial value present in the AC before the program execution.
Without the specifics of the program, it is not possible to give a definite answer to the question of the AC’s contents at the end of the program.
b. Similarly, without the specific program instructions, it is not possible to determine the contents of the symbol table. The symbol table is a data structure used by compilers and interpreters to store information about variables, functions, and other symbols in a program. It provides a mapping between identifiers used in the source code and their corresponding memory locations or values.
The contents of the symbol table are dynamically updated throughout the program as variables are declared, initialized, and modified. The final state of the symbol table will depend on the programming language, the instructions executed, and the specific variables and symbols used in the program.
In conclusion, the exact contents of the AC at the end of the program and the symbol table cannot be determined without specific details about the MARIE program and its instructions. The effects on the AC and symbol table are influenced by the program code and its execution.