The Demo Ethereum Virtual Machine is a virtualized stack-based architecture machine. Its word size (and size of stack items) is 256-bit with a memory model that is a simple word-addressed byte array. The stack has a maximum size of 1024 and it uses an independent storage model based on a modified Merkle Particia Tree. All locations in both storage and memory are well defined initially as zero
First, install the dependencies with:
yarn
Then, use the CLI to manually test a bytecode input
yarn pvm --code 0x6080 --gasLimit 100
PUSH1 @ pc=0 gas=100 cost=3
Stack: [ '0x80' ]
Memory: []
STOP @ pc=2 gas=97 cost=0
Stack: [ '0x80' ]
Memory: []
Output: 0x00
Root: 0x29adae8041417fab44a067497a0daedde9e76b8e2f7a1b8ea07dbc5dc2e14588
| OPCODE | MNEMONIC |
|---|---|
| 0x00 | STOP |
| 0x01 | ADD |
| 0x02 | MUL |
| 0x04 | DIV |
| 0x06 | MOD |
| 0x03 | SUB |
| 0x0a | EXP |
| 0x10 | LT |
| 0x11 | GT |
| 0x14 | EQ |
| 0x16 | AND |
| 0x17 | OR |
| 0x18 | XOR |
| 0x19 | NOT |
| 0x50 | POP |
| 0x51 | MLOAD |
| 0x52 | MSTORE |
| 0x54 | SLOAD |
| 0x55 | SSTORE |
| 0x56 | JUMP |
| 0x57 | JUMPI |
| 0x5b | JUMPDEST |
| 0x60 | PUSH1 |
| 0x61 | PUSH2 |
| 0x62 | PUSH3 |
| 0x63 | PUSH4 |
| 0x64 | PUSH5 |
| 0x65 | PUSH6 |
| 0x66 | PUSH7 |
| 0x67 | PUSH8 |
| 0x68 | PUSH9 |
| 0x69 | PUSH10 |
| 0x6a | PUSH11 |
| 0x6b | PUSH12 |
| 0x6c | PUSH13 |
| 0x6d | PUSH14 |
| 0x6e | PUSH15 |
| 0x6f | PUSH16 |
| 0x70 | PUSH17 |
| 0x71 | PUSH18 |
| 0x72 | PUSH19 |
| 0x73 | PUSH20 |
| 0x74 | PUSH21 |
| 0x75 | PUSH22 |
| 0x76 | PUSH23 |
| 0x77 | PUSH24 |
| 0x78 | PUSH25 |
| 0x79 | PUSH26 |
| 0x7a | PUSH27 |
| 0x7b | PUSH28 |
| 0x7c | PUSH29 |
| 0x7d | PUSH30 |
| 0x7e | PUSH31 |
| 0x7f | PUSH32 |
| 0x80 | DUP1 |
| 0x81 | DUP2 |
| 0x82 | DUP4 |
| 0x84 | DUP5 |
| 0x85 | DUP6 |
| 0x86 | DUP7 |
| 0x87 | DUP8 |
| 0x88 | DUP9 |
| 0x89 | DUP10 |
| 0x8a | DUP11 |
| 0x8b | DUP12 |
| 0x8c | DUP13 |
| 0x8d | DUP14 |
| 0x8e | DUP15 |
| 0x8f | DUP16 |
| 0x90 | SWAP1 |
| 0x91 | SWAP2 |
| 0x92 | SWAP3 |
| 0x93 | SWAP4 |
| 0x94 | SWAP5 |
| 0x95 | SWAP6 |
| 0x96 | SWAP7 |
| 0x97 | SWAP8 |
| 0x98 | SWAP9 |
| 0x99 | SWAP10 |
| 0x9a | SWAP11 |
| 0x9b | SWAP12 |
| 0x9c | SWAP13 |
| 0x9d | SWAP14 |
| 0x9e | SWAP15 |
| 0x9f | SWAP16 |
| 0xf3 | RETURN |