Dr. Reichard's CARDIAC Simulator
Memory Bank:
Instruction Register: Opcode:Operand:
Program Counter:
Accumulator:
Program: Output:
020
011
021
012
022
111
023
712
024
613
025
513
026
331
027
900
031
198
032
614
033
514
034
900
| Opcode | Mnemonic | Operation |
|---|---|---|
| 0 | INP | Read a card into memory |
| 1 | CLA | Clear accumulator and add from memory (load) |
| 2 | ADD | Add from memory to accumulator |
| 3 | TAC | Test accumulator and jump if negative |
| 4 | SFT | Shift accumulator |
| 5 | OUT | Write memory location to output card |
| 6 | STO | Store accumulator to memory |
| 7 | SUB | Subtract memory from accumulator |
| 8 | JMP | Jump and save PC |
| 9 | HRS | Halt and reset |