Commit Graph

107 Commits

Author SHA1 Message Date
Jeffrey Wilcke 9d61d78de6 core/vm: abstracted instruction execution away from JIT
Moved the execution of instructions to the instruction it self. This
will allow for specialised instructions (e.g. segments) to be execution
in the same manner as regular instructions.
2015-10-16 22:17:35 +02:00
Jeffrey Wilcke 361082ec4b cmd/evm, core/vm, test: refactored VM and core
* Moved `vm.Transfer` to `core` package and changed execution to call
`env.Transfer` instead of `core.Transfer` directly.
* core/vm: byte code VM moved to jump table instead of switch
* Moved `vm.Transfer` to `core` package and changed execution to call
  `env.Transfer` instead of `core.Transfer` directly.
* Byte code VM now shares the same code as the JITVM
* Renamed Context to Contract
* Changed initialiser of state transition & unexported methods
* Removed the Execution object and refactor `Call`, `CallCode` &
  `Create` in to their own functions instead of being methods.
* Removed the hard dep on the state for the VM. The VM now
  depends on a Database interface returned by the environment. In the
  process the core now depends less on the statedb by usage of the env
* Moved `Log` from package `core/state` to package `core/vm`.
2015-10-04 01:13:54 +02:00
Gustav Simonsson 7324176f70 Add tests for uncle timestamps and refactor timestamp type 2015-08-25 04:46:11 +02:00
Jeffrey Wilcke 32395ddb89 core/vm: fixed jit error & added inline docs
opNumber did not create a new big int which could lead to the block's
number being modified.
2015-08-11 00:16:38 +02:00
Jeffrey Wilcke ac697326a6 core/vm: reduced big int allocations
Reduced big int allocation by making stack items modifiable. Instead of
adding items such as `common.Big0` to the stack, `new(big.Int)` is
added instead. One must expect that any item that is added to the stack
might change.
2015-08-07 12:52:23 +02:00
Jeffrey Wilcke 184e9ae9a8 core, tests: reduced state copy by N calls
Reduced the amount of state copied that are required by N calls by doing
a balance check prior to any state modifications.
2015-08-07 12:52:23 +02:00
Jeffrey Wilcke 846f34f78b core/vm, tests: implemented semi-jit vm
* changed stack and removed stack ptr. Let go decide on slice reuse.
2015-08-07 12:52:17 +02:00