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Select a register number (0-12) for the Rd operand

Select a register number (0-12) for the Rn operand

Select a register or a value for operand 2

Select a location (0-127) for the memory reference

Create a label name

Select a label name
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Program Name:

Note that this is a testing release. Please contact me is you find any issues.

Session - Processing the Assembler in Denary

Register Values

Flag Values

Line Counter:

General Memory

Set Memory Value

Memory Location:
Value:

Last Instruction

Assembly Code

Machine Code Session

Register Values

Current Instruction (Hexadecimal)

Flag Values

Program Counter:

General Memory (Values in denary)

Code Memory (Values in hexadecimal)

Assembly Language and Machine Code

Label Addresses

Example Programs

There are a number of example programs which can be loaded in to illustrate how Assembly-Code can be written and run using this application.

Add

Adds the values in memory locations 0 and 1 together.

Stores the result in memory location 2.

Count to 10

Counts through the numbers from 1 to 10, using register 0 to store the values.

multiply

Multiplies the values in memory locations 0 and 1 together.

Stores the result in memory location 2.

Power of 2

Calculates 2 to the power of the value stored in memory location 0 using the LSL command.

Stores the result in memory location 1.

Divide by 16

Divides the value in memory locations 0 by 16.

Stores the result in memory location 1.

Div and Mod

Does an integer division on the value in memory location 0 by the value in memory location 1.

Stores the integer result of the divide in memory location 2.
Stores the remainder in memory location 3.

Is Even

Does a bitwise logical AND with 1 to find whether the value in memory location 0 is odd or even..

Stores the result in register 0 (1 for odd and 0 for even).

A and B or C

Does a bitwise logical AND between the values in memory locations 0 and 1 and then does a bitwise logical OR between the result and the value in memory location 2.

Stores the result in memory location 3.

NAND

Does a bitwise logical AND between the values in memory locations 0 and 1.

Stores the result in memory location 2.

Triangular Numbers

Calculates the triangular number of the value in memory location 0.

Stores the result in memory location 1.