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Added console for displaying the system state

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Corrected behaviour and tests
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Jan-Peter von Hunnius 2025-09-29 19:02:00 +02:00
parent 8193bcda46
commit 0278a96a8d
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programs/README.md
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@ -6,18 +6,30 @@ This directory contains binary program files for the Intel MCS-4 emulator.
### fibonacci.bin
- **Size:** 33 bytes (16 instructions × 2 bytes each + 1 extra byte)
- **Description:** Fibonacci sequence generator
- **Description:** Basic Fibonacci sequence generator (stores results in RAM)
- **Algorithm:** Calculates first 8 Fibonacci numbers using registers and RAM
- **Instructions Used:** LDM, LD, WRM, IAC, ADD, JCN, NOP
- **Output:** Results stored in RAM locations 0-7 (not visible to user)
### fibonacci_output.bin ✨ **RECOMMENDED**
- **Size:** 55 bytes (27 instructions × 2 bytes each + 1 extra byte)
- **Description:** Enhanced Fibonacci sequence generator with output port visibility
- **Algorithm:** Calculates first 8 Fibonacci numbers and outputs them to output ports
- **Instructions Used:** LDM, LD, WRM, IAC, ADD, JCN, NOP, SRC
- **Output:** Each Fibonacci number visible on output ports 0-7 during execution
- **Features:** Real-time visibility of calculation progress
## Usage
Programs are automatically loaded by the emulator. Use the `--file` option to specify a different program:
```bash
# Use default fibonacci program
# Use default fibonacci program (RAM-based)
cargo run -- --system basic
# Use enhanced fibonacci program with output ports ✨
cargo run -- --system basic --file programs/fibonacci_output.bin
# Use specific program
cargo run -- --system basic --file programs/myprogram.bin
```
@ -31,4 +43,19 @@ cargo run -- --system basic --file programs/myprogram.bin
## 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.
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.
## Program Development Tips
### Making Programs Visible
- **Use Output Ports:** Write results to output ports (0x14-0x17) for visibility
- **SRC Instruction:** Select output port with `SRC` before `WRM`
- **Real-time Output:** Numbers appear on output ports during execution
- **System Monitoring:** Watch RAM contents and output port states in real-time
### Example Output Port Usage
```asm
LDM 5 ; Load value 5
SRC 0 ; Select output port 0
WRM ; Write to output port 0 (now visible to user)
```