Added simple calc made using asm and c

[AMNTDEVIL]

This program is intended to demonstrate how low-level assembly interacts with high-level C, specifically for floating-point arithmetic. By implementing addition, subtraction, multiplication, and division in assembly while handling input and logic in C, it shows:

• How C calls external assembly functions using extern.
• How arguments and return values for floats are passed via SSE registers.
• The difference between high-level logic (switch, scanf) and low-level computation.
• A clear, hands-on example of mixing assembly and C in a small, understandable program.

Even though it’s short, it’s enough to teach beginners how low-level instructions work under the hood without overwhelming them.

[AMNTDEVIL]

Added simple calculator intending to show how in low level add, sub, mul and div is performed