From acf4b5753fd473f048176a12c42e1b8209035b57 Mon Sep 17 00:00:00 2001 From: obscuren Date: Tue, 9 Dec 2014 20:27:57 +0100 Subject: Core changes * Code = '' if gas < len(D) * 5 * Sha3 gas 10 + 10 * len(D), rounding up 32 bytes * Sha256 gas 50 + 50 * len(D), rounding up 32 bytes * Ripmed gas 50 + 50 * len(D), rounding up 32 bytes * Accounts and value transfers no longer reverted --- vm/address.go | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'vm/address.go') diff --git a/vm/address.go b/vm/address.go index 06bd35f6b..be8921a3b 100644 --- a/vm/address.go +++ b/vm/address.go @@ -12,7 +12,7 @@ type Address interface { } type PrecompiledAddress struct { - Gas *big.Int + Gas func(l int) *big.Int fn func(in []byte) []byte } @@ -21,9 +21,19 @@ func (self PrecompiledAddress) Call(in []byte) []byte { } var Precompiled = map[uint64]*PrecompiledAddress{ - 1: &PrecompiledAddress{big.NewInt(500), ecrecoverFunc}, - 2: &PrecompiledAddress{big.NewInt(100), sha256Func}, - 3: &PrecompiledAddress{big.NewInt(100), ripemd160Func}, + 1: &PrecompiledAddress{func(l int) *big.Int { + return GasEcrecover + }, ecrecoverFunc}, + 2: &PrecompiledAddress{func(l int) *big.Int { + n := big.NewInt(int64(l+31)/32 + 1) + n.Mul(n, GasSha256) + return n + }, sha256Func}, + 3: &PrecompiledAddress{func(l int) *big.Int { + n := big.NewInt(int64(l+31)/32 + 1) + n.Mul(n, GasRipemd) + return n + }, ripemd160Func}, } func sha256Func(in []byte) []byte { -- cgit v1.2.3 From 4dbdcaecb117d7e1fcaf0869f5d4602312552991 Mon Sep 17 00:00:00 2001 From: obscuren Date: Wed, 17 Dec 2014 23:58:52 +0100 Subject: Moved pre-compiled, moved depth check * Depth check has been moved to the execution * Pre compiled execution has been moved to the VM * PrecompiledAddress has been renamed to PrecompiledAccount --- vm/address.go | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'vm/address.go') diff --git a/vm/address.go b/vm/address.go index be8921a3b..611979c94 100644 --- a/vm/address.go +++ b/vm/address.go @@ -11,25 +11,25 @@ type Address interface { Call(in []byte) []byte } -type PrecompiledAddress struct { +type PrecompiledAccount struct { Gas func(l int) *big.Int fn func(in []byte) []byte } -func (self PrecompiledAddress) Call(in []byte) []byte { +func (self PrecompiledAccount) Call(in []byte) []byte { return self.fn(in) } -var Precompiled = map[uint64]*PrecompiledAddress{ - 1: &PrecompiledAddress{func(l int) *big.Int { +var Precompiled = map[string]*PrecompiledAccount{ + string(ethutil.LeftPadBytes([]byte{1}, 20)): &PrecompiledAccount{func(l int) *big.Int { return GasEcrecover }, ecrecoverFunc}, - 2: &PrecompiledAddress{func(l int) *big.Int { + string(ethutil.LeftPadBytes([]byte{2}, 20)): &PrecompiledAccount{func(l int) *big.Int { n := big.NewInt(int64(l+31)/32 + 1) n.Mul(n, GasSha256) return n }, sha256Func}, - 3: &PrecompiledAddress{func(l int) *big.Int { + string(ethutil.LeftPadBytes([]byte{3}, 20)): &PrecompiledAccount{func(l int) *big.Int { n := big.NewInt(int64(l+31)/32 + 1) n.Mul(n, GasRipemd) return n -- cgit v1.2.3