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author | Jeffrey Wilcke <jeffrey@ethereum.org> | 2017-02-02 22:25:42 +0800 |
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committer | GitHub <noreply@github.com> | 2017-02-02 22:25:42 +0800 |
commit | 8b57c494908637a5c0e74f8f7a13b3218e026757 (patch) | |
tree | d5c7842eea6959c3b91dba00e8452a79d735a2a3 /core/vm/memory.go | |
parent | 296450451b090393b2dd11d057c5b72cb4d92356 (diff) | |
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params: core, core/vm, miner: 64bit gas instructions (#3514)
Reworked the EVM gas instructions to use 64bit integers rather than
arbitrary size big ints. All gas operations, be it additions,
multiplications or divisions, are checked and guarded against 64 bit
integer overflows.
In additon, most of the protocol paramaters in the params package have
been converted to uint64 and are now constants rather than variables.
* common/math: added overflow check ops
* core: vmenv, env renamed to evm
* eth, internal/ethapi, les: unmetered eth_call and cancel methods
* core/vm: implemented big.Int pool for evm instructions
* core/vm: unexported intPool methods & verification methods
* core/vm: added memoryGasCost overflow check and test
Diffstat (limited to 'core/vm/memory.go')
-rw-r--r-- | core/vm/memory.go | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/core/vm/memory.go b/core/vm/memory.go index d01188417..99a84d227 100644 --- a/core/vm/memory.go +++ b/core/vm/memory.go @@ -20,11 +20,12 @@ import "fmt" // Memory implements a simple memory model for the ethereum virtual machine. type Memory struct { - store []byte + store []byte + lastGasCost uint64 } func NewMemory() *Memory { - return &Memory{nil} + return &Memory{} } // Set sets offset + size to value |