40 lines
728 B
Go
40 lines
728 B
Go
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package vm
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import "fmt"
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type memory struct {
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entries []uint64
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}
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func newMemory(size uint64) *memory {
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return &memory{
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entries: make([]uint64, size),
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}
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}
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func (mem *memory) readUnsigned(index uint64) (uint64, error) {
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if index >= uint64(len(mem.entries)) {
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return 0, fmt.Errorf("Invalid memory index: %016x", index)
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}
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return mem.entries[index], nil
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}
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func (mem *memory) mustReadUnsigned(index uint64) uint64 {
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value, err := mem.readUnsigned(index)
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if err != nil {
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panic(err)
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}
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return value
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}
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func (mem *memory) writeUnsigned(index uint64, value uint64) error {
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if index >= uint64(len(mem.entries)) {
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return fmt.Errorf("Invalid memory index: %016x", index)
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}
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mem.entries[index] = value
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return nil
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}
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