Re-created the fibonacci code and put programs into their own folder

programs/README.md

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+# MCS-4 Programs
+
+This directory contains binary program files for the Intel MCS-4 emulator.
+
+## Available Programs
+
+### fibonacci.bin
+- **Size:** 33 bytes (16 instructions × 2 bytes each + 1 extra byte)
+- **Description:** Fibonacci sequence generator
+- **Algorithm:** Calculates first 8 Fibonacci numbers using registers and RAM
+- **Instructions Used:** LDM, LD, WRM, IAC, ADD, JCN, NOP
+
+## Usage
+
+Programs are automatically loaded by the emulator. Use the `--file` option to specify a different program:
+
+```bash
+# Use default fibonacci program
+cargo run -- --system basic
+
+# Use specific program
+cargo run -- --system basic --file programs/myprogram.bin
+```
+
+## Adding New Programs
+
+1. Create your MCS-4 assembly program
+2. Assemble it into raw binary format (big-endian byte pairs)
+3. Save as `.bin` file in this directory
+4. Update this README with program details
+
+## Program Format
+
+MCS-4 programs are stored as raw binary data where each instruction is represented as 8-bit bytes. Multi-byte instructions (like addresses) use big-endian format.