| CPU |
Instruction count |
Instruction size [bits] |
Data size [bits] |
Addressable memory [bits] |
Registers
|
| Tiny CPU Instruction Set |
22 |
8-16 |
8 |
10 |
PC, SP, A, X, SR
|
| A Quick Introduction to the ZipCPU Instruction Set |
29 |
32 |
32 |
32 |
R0-R13, PC, CC
|
| MINI-CPU Instruction Set Specification |
12 |
4-12 |
8 |
8 |
PC, ACC, R
|
| Simple Virtual Machine |
18 |
8 |
32 |
32 |
PC, SP, FP
|
| Simple virtual machine which interprets bytecode. |
36 |
16-32 |
16-32 |
16-32 |
IP, FLAGS, R0-R9, SP
|
| VAM Virtual Assembler Machine |
58 |
16-32 |
16-32 |
16-32 |
R0-Rn (IP, SP)
|
| Simple 8-bit Assembler Simulator |
60 |
8 |
8 |
8 |
PC, SP, A, B, C, D
|
| The RiSC-16 Instruction-Set Architecture |
8 |
16 |
16 |
16 |
PC, R0-R7
|
| TOY Machine |
16 |
16 |
16 |
8 (256 words) |
PC, R0-R15
|
| MU0 |
8 |
16 |
16 |
12 |
PC, ACC
|
| LC-3 |
15 |
16 |
16 |
16 |
PC, R0-R7
|
| TOY/2 - a minimalist 16 bit CPU |
15 |
16 |
16 |
16 |
PC, A, T
|
| MARIE: An Introduction to a Simple Computer |
9 |
16 |
16 |
12 |
PC, ACC
|
| Building a 4-Bit Computer: The Instruction Set |
16 |
4 |
4 |
12 |
R0-R5, S0, S1, PC, SP, IX, IV, TA
|
| How to create your own virtual machine |
35 |
8 |
8 |
16 |
A, B, X, Y, D
|
| Little Man Computer |
10 |
12 |
8 |
8 |
A
|
| CRISC |
32 |
struct |
64 |
16-64 |
|
| CHIP-8 |
35 |
16 |
8 |
12 |
V0-V15, I
|
| Toy CPU |
14 |
8 |
8 |
8 |
A
|
| 8bit virtual machine |
28 |
8 |
8 |
8 |
PC, A, X
|