SSEM is one of the first implementations of the von-Neumann design of a computer. It contained a control unit, arithmetic-logic unit (ALU), and memory (which actually is a CRT display too).
The speed of CPU is around 700 instructions per second.
ssem-cpu plugin implements the control unit (instruction decoding and executing) and ALU.
Status panel is shown below:
Registers section shows hexadecimal, decimal and binary representation of the:
- accumulator (
- “control-instruction” (
CI), which holds memory address of the current instruction (zero-based program counter)
Memory-snippet shows “actual” memory-cell values (hexadecimal, decimal and binary):
M[CI]: memory cell value at
CI(the current row with the instruction)
- line part (correctly reversed) of the current instruction row
M[line]: memory cell value at