diff options
| -rw-r--r-- | vm/memory.go | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/vm/memory.go b/vm/memory.go index 2a1e6e1b9..dd47fa1b5 100644 --- a/vm/memory.go +++ b/vm/memory.go @@ -1,6 +1,10 @@ package vm -import "fmt" +import ( + "fmt" + + "github.com/ethereum/go-ethereum/common" +) type Memory struct { store []byte @@ -11,21 +15,21 @@ func NewMemory() *Memory { } func (m *Memory) Set(offset, size uint64, value []byte) { - if len(value) > 0 { - totSize := offset + size - lenSize := uint64(len(m.store) - 1) - if totSize > lenSize { - // Calculate the diff between the sizes - diff := totSize - lenSize - if diff > 0 { - // Create a new empty slice and append it - newSlice := make([]byte, diff-1) - // Resize slice - m.store = append(m.store, newSlice...) - } + value = common.RightPadBytes(value, int(size)) + + totSize := offset + size + lenSize := uint64(len(m.store) - 1) + if totSize > lenSize { + // Calculate the diff between the sizes + diff := totSize - lenSize + if diff > 0 { + // Create a new empty slice and append it + newSlice := make([]byte, diff-1) + // Resize slice + m.store = append(m.store, newSlice...) } - copy(m.store[offset:offset+size], value) } + copy(m.store[offset:offset+size], value) } func (m *Memory) Resize(size uint64) { |