Each SchemeStation VM instruction has a unique number (0-255) for the binary representation of the instructions.
| 0 | NOP | |
| 1 | HALT | |
| 2 | JUMP | REG |
| 3 | JUMP_IMMEDIATE | LABEL |
| 4 | BRANCH | REG REG |
| 5 | BRANCH_IMMEDIATE | REG LABEL |
| 6 | PUSH | REG REG |
| 7 | POP | REG REG |
| 8 | SET_EXCEPTION_HANDLER | REG |
| 9 | ENABLE_EXCEPTIONS | |
| 10 | DISABLE_EXCEPTIONS | |
| 11 | SEND_MESSAGE | REG REG |
| 12 | GET_MESSAGE | REG |
| 13 | PUT_MESSAGE | REG |
| 14 | CREATE_PROCEDURE | REG REG REG |
| 15 | GET_PROCEDURE_ENV | REG REG |
| 16 | GET_PROCEDURE_ADDRESS | REG REG |
| 17 | IS_OF_BOOLEAN | REG REG |
| 18 | IS_OF_INTEGER | REG REG |
| 19 | IS_OF_FLOAT | REG REG |
| 20 | IS_OF_PAIR | REG REG |
| 21 | IS_OF_PAIR_TAGGED | REG REG REG |
| 22 | IS_OF_VECTOR | REG REG |
| 23 | IS_OF_VECTOR_TAGGED | REG REG REG |
| 24 | IS_OF_PRIVATE_BIT_STRING | REG REG |
| 25 | IS_OF_PRIVATE_BIT_STRING_TAGGED | REG REG REG |
| 26 | IS_OF_SHARED_BIT_STRING | REG REG |
| 27 | IS_OF_SHARED_BIT_STRING_TAGGED | REG REG REG |
| 28 | IS_OF_PROCEDURE | REG REG |
| 29 | IS_OF_ACTOR_ADDRESS | REG REG |
| 30 | IS_OF_BYTE_CODE | REG REG |
| 31 | MOVE | REG REG |
| 32 | LOAD | REG LITERAL |
| 33 | LOAD_NULL | REG |
| 34 | INT_ADD | REG REG REG |
| 35 | INT_SUB | REG REG REG |
| 36 | INT_MUL | REG REG REG |
| 37 | INT_DIV | REG REG REG |
| 38 | INT_MOD | REG REG REG |
| 39 | INT_REM | REG REG REG |
| 40 | FLOAT_ADD | REG REG REG |
| 41 | FLOAT_SUB | REG REG REG |
| 42 | FLOAT_MUL | REG REG REG |
| 43 | FLOAT_DIV | REG REG REG |
| 44 | FLOAT_MOD | REG REG REG |
| 45 | FLOAT_REM | REG REG REG |
| 46 | FLOAT_LOG | REG REG |
| 47 | FLOAT_LOG10 | REG REG |
| 48 | FLOAT_EXP | REG REG |
| 49 | FLOAT_SQRT | REG REG |
| 50 | SHR | REG REG REG |
| 51 | SHL | REG REG REG |
| 52 | AND | REG REG REG |
| 53 | OR | REG REG REG |
| 54 | XOR | REG REG REG |
| 55 | NEG | REG REG |
| 56 | ROR | REG REG REG |
| 57 | ROL | REG REG REG |
| 58 | LAND | REG REG REG |
| 59 | LOR | REG REG REG |
| 60 | NOT | REG REG |
| 61 | BOOLEAN_NOT | REG REG |
| 62 | INT_TO_FLOAT | REG REG |
| 63 | FLOAT_TO_INT | REG REG |
| 64 | INT_TO_BIT_STRING | REG REG REG |
| 65 | BIT_STRING_TO_INT | REG REG REG |
| 66 | EQ | REG REG REG |
| 67 | INT_CMP | REG REG REG |
| 68 | FLOAT_CMP | REG REG REG |
| 69 | INT_GE | REG REG REG |
| 70 | FLOAT_GE | REG REG REG |
| 71 | GET_SUBSTRING | REG REG REG REG |
| 72 | SET_SUBSTRING | REG REG REG |
| 73 | ALLOC_PAIR | REG |
| 74 | ALLOC_PAIR_TAGGED | REG REG |
| 75 | ALLOC_VECTOR | REG REG |
| 76 | ALLOC_VECTOR_TAGGED | REG REG REG |
| 77 | ALLOC_SHARED_BIT_STRING | REG REG |
| 78 | ALLOC_SHARED_BIT_STRING_TAGGED | REG REG REG |
| 79 | ALLOC_PRIVATE_BIT_STRING | REG REG |
| 80 | ALLOC_PRIVATE_BIT_STRING_TAGGED | REG REG REG |
| 81 | PAIR_SET_CAR | REG REG |
| 82 | PAIR_SET_CDR | REG REG |
| 83 | PAIR_GET_CAR | REG REG |
| 84 | PAIR_GET_CDR | REG REG |
| 85 | VECTOR_SET | REG REG REG |
| 86 | VECTOR_GET | REG REG REG |
| 87 | VECTOR_SET_INDEX | REG REG LITERAL |
| 88 | VECTOR_GET_INDEX | REG REG LITERAL |
| 89 | VECTOR_LEN | REG REG |
| 90 | BIT_STRING_LEN | REG REG |
| 91 | COPY_PAIR | REG REG |
| 92 | COPY_VECTOR | REG REG |
| 93 | COPY_BIT_STRING | REG REG |
| 94 | CONS | REG REG REG |
| 95 | SAVE | REG REG |
| 96 | RESTORE | REG REG |
| 97 | ALLOC_INTEGER | REG |
| 98 | ALLOC_FLOAT | REG |
| 99 | ALLOC_BOOLEAN | REG |
| 100 | INTEGER_SET | REG REG |
| 101 | FLOAT_SET | REG REG |
| 102 | BOOLEAN_SET | REG REG |
| 103 | INTEGER_GET | REG REG |
| 104 | FLOAT_GET | REG REG |
| 105 | BOOLEAN_GET | REG REG |
| 106 | PAIR_GET_CAR_OR_BLOCK | REG REG |
| 107 | ALLOC_VECTOR_IMMEDIATE | REG LITERAL |
| 108 | CREATE_PROCEDURE_IMMEDIATE | REG REG LABEL |
| 109 | SAVE_IMMEDIATE | REG LITERAL |
| 110 | RESTORE_IMMEDIATE | REG LITERAL |
| 111 | BIT_STRING_CMP | REG REG REG |
| 112 | BIT_STRING_GE | REG REG REG |
| 113 | TAG_CMP | REG REG LITERAL |
| 114 | IMM_EXTEND | [special] |