bit-Machine

	Assembly-Level

Project: Untitled (Private)

Address

Opcode

Operand

Load	RAM

Project: Untitled (Private)

	Address	Opcode	Operand		Address	Value

	CPU

Fetch	Decode	Execute

Clock:					Program Counter:
					0
Current Instruction Register:					Accumulator: 🚩 ౦

	Output

	Console

✥

Address	Value

Previous Version:

Current Version

Address	Opcode	Operand		Address	Value

Address	Opcode	Operand		Address	Value

Current Version

Address

Opcode

Operand

Address

Opcode

Operand

Address:

Index:

Add an integer number, or type ' i ' to use the value stored in the Index Register.

This will delete your program completely

This action is unduable, and you will be able to restore previous steps from RAM History

Are you sure?

Error!

Restoring a previous version is non-destructive.
A new version will be added to the end of the RAM history with the restored content.

Restoring a previous version is non-destructive.
A new version will be added to the end of the assembly code history with the restored content.

It seems you have work from a previous session. Would you like to load this up now?

This version is added to your history, and you can always restore it from the History buttons.

Your preferences can be changed in the History window

Starting this tutorial will delete any existing programs in RAM.
Are you sure you want to continue?

Follow this step-by-step tutorial to create a program which takes a number from the user, multiplies it by 5, and returns the result.

Click "Next" for the next step, or "Exit" to exit the tutorial.

We have to add instructions one-by-one, starting at memory address 0.

From the "Opcode" dropdown, select the instruction "Input".

From the "Operand" dropdown, select the address "32".

This means that the user will be presented with an input field, and their input will be stored at memory address 32.

It looks like you didn't add the correct instruction.

From the "Opcode" dropdown, select the instruction "Input".

From the "Operand" dropdown, select the address "32".

We have to add the number 5 to memory so we can use it to multiply the user's input.

Add the number 5 to memory address 33.

It looks like you didn't add the correct value.

Add the number 5 to memory address 33.

Now that we have both numbers ready (the user's will be stored in address 32, and the multiplier is in address 33), we can multiply them together.
We first need to load the user's number into the accumulator.

From the "Opcode" dropdown, select the instruction "Load".

From the "Operand" dropdown, select the address "32".

It looks like you didn't add the correct instruction.

From the "Opcode" dropdown, select the instruction "Load".

From the "Operand" dropdown, select the address "32".

The user's number is already in the CPU's Accumulator, we can now multiply it by our own number (5).

From the "Opcode" dropdown, select the instruction "Mult".

From the "Operand" dropdown, select the address "33".

It looks like you didn't add the correct instruction.

From the "Opcode" dropdown, select the instruction "Mult".

From the "Operand" dropdown, select the address "33".

The CPU performs the calculation, and the result will be stored in the Accumulator.
To be able to return it to the user, we have to store it back into memory first.

From the "Opcode" dropdown, select the instruction "Store".

From the "Operand" dropdown, select the address "34".

It looks like you didn't add the correct instruction.

From the "Opcode" dropdown, select the instruction "Store".

From the "Operand" dropdown, select the address "34".

With the result being stored in RAM, it is now ready to be printed.

From the "Opcode" dropdown, select the instruction "Print".

From the "Operand" dropdown, select the address "34".

It looks like you didn't add the correct instruction.

From the "Opcode" dropdown, select the instruction "Print".

From the "Operand" dropdown, select the address "34".

Your program is ready to run. Choose your preferred speed, and click "Run", then give any number in the "Output" window when prompted.

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Currently working on:

Mobile friendly version
Fixing bugs reported by users

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