Module tvix_eval::opcode

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This module implements the instruction set running on the abstract machine implemented by tvix.

Structs§

  • CodeIdx
    Index of an instruction in the current code chunk.
  • ConstantIdx
    Index of a constant in the current code chunk.
  • Count
    Provided count for an instruction (could represent e.g. a number of elements).
  • JumpOffset
    Offset by which an instruction pointer should change in a jump.
  • StackIdx
    Index of a value in the runtime stack. This is an offset relative to the VM value stack_base of the CallFrame containing the opcode which contains this StackIdx.
  • UpvalueIdx
    Index of an upvalue within a closure’s bound-variable upvalue list. This is an absolute index into the Upvalues of the CallFrame containing the opcode which contains this UpvalueIdx.

Enums§

  • OpCode
    All variants of this enum carry a bounded amount of data to ensure that no heap allocations are needed for an Opcode.