Skip to main content Module opcode Copy item path Source Opcode An opcode and its immediate data. Returned by OpcodesIter OpcodesIter An iterator that yields opcodes and their immediate data. OpcodesIterWithPc A bytecode iterator that yields opcodes and their immediate data, alongside the program counter. compute_stack_io 🔒 Returns the real (inputs, outputs) stack I/O for an opcode, decoding the immediate for
DUPN, SWAPN, and EXCHANGE whose opcode-table entries are placeholders. decode_pair Decodes an EXCHANGE immediate byte into a pair of stack indices (n, m). decode_single Decodes a DUPN/SWAPN immediate byte into a stack index. encode_pair Encodes a pair of stack indices into an EXCHANGE immediate byte. encode_single Encodes a stack index into a DUPN/SWAPN immediate byte. format_bytecode Returns a string representation of the given bytecode. format_bytecode_to Formats an EVM bytecode to the given writer. min_imm_len Returns the length of the immediate data for the given opcode, or 0 if none. stack_io Returns the number of input and output stack elements of the given opcode.