pub const SIG_XREGS: [u8; 13];Expand description
The x-register stored at signature slot i (the inverse of
javm_exec::regs::reg_slot_or_ff, matching crate::oracle::slot_to_xreg).
Slot 7 = x10 (the former fold return_value). The epilogue stores each at
byte offset 8*i of the signature region.