cmd/geth, cmd/utils, core, rpc: renamed to blockchain

* Renamed ChainManager to BlockChain
* Checkpointing is no longer required and never really properly worked
when the state was corrupted.

core/vm/common.go

@@ -38,7 +38,7 @@ const (
 )
 
 var (
-	Pow256 = common.BigPow(2, 256) // Pew256 is 2**256
+	Pow256 = common.BigPow(2, 256) // Pow256 is 2**256
 
 	U256 = common.U256 // Shortcut to common.U256
 	S256 = common.S256 // Shortcut to common.S256
@@ -46,7 +46,7 @@ var (
 	Zero = common.Big0 // Shortcut to common.Big0
 	One  = common.Big1 // Shortcut to common.Big1
 
-	max = big.NewInt(math.MaxInt64) // Maximum 256 bit integer
+	max = big.NewInt(math.MaxInt64) // Maximum 64 bit integer
 )
 
 // NewVm returns a new VM based on the Environment

core/vm/contract.go

@@ -118,8 +118,8 @@ func (self *Contract) SetCode(code []byte) {
 	self.Code = code
 }
 
-// SetCallCode sets the address of the code address and sets the code
-// of the contract according to the backing database.
+// SetCallCode sets the code of the contract and address of the backing data
+// object
 func (self *Contract) SetCallCode(addr *common.Address, code []byte) {
 	self.Code = code
 	self.CodeAddr = addr

core/vm/doc.go

@@ -18,15 +18,15 @@
 Package vm implements the Ethereum Virtual Machine.
 
 The vm package implements two EVMs, a byte code VM and a JIT VM. The BC
-(Byte Code) VM loops over a set of bytes and executes them according to a set
-of rules defined in the Ethereum yellow paper. When the BC VM is invokes it
+(Byte Code) VM loops over a set of bytes and executes them according to the set
+of rules defined in the Ethereum yellow paper. When the BC VM is invoked it
 invokes the JIT VM in a seperate goroutine and compiles the byte code in JIT
 instructions.
 
 The JIT VM, when invoked, loops around a set of pre-defined instructions until
-it either runs of gas, causes an internel error, returns or stops. At a later
+it either runs of gas, causes an internal error, returns or stops. At a later
 stage the JIT VM will see some additional features that will cause sets of
 instructions to be compiled down to segments. Segments are sets of instructions
-that can be ran in one go saving precious time during execution.
+that can be run in one go saving precious time during execution.
 */
 package vm

core/vm/environment.go

@@ -26,7 +26,7 @@ import (
 // it's own isolated environment.
 
 // Environment is an EVM requirement and helper which allows access to outside
-// information such like states.
+// information such as states.
 type Environment interface {
 	// The state database
 	Db() Database
@@ -50,7 +50,7 @@ type Environment interface {
 	GasLimit() *big.Int
 	// Determines whether it's possible to transact
 	CanTransfer(from common.Address, balance *big.Int) bool
-	// Transfer from to to with amount set
+	// Transfers amount from one account to the other
 	Transfer(from, to Account, amount *big.Int) error
 	// Adds a LOG to the state
 	AddLog(*Log)

core/vm/memory.go

@@ -18,7 +18,7 @@ package vm
 
 import "fmt"
 
-// Memory implements ethereum RAM backed by a simple byte slice
+// Memory implements a simple memory model for the ethereum virtual machine.
 type Memory struct {
 	store []byte
 }