-/*
-hacked on by jwz@lucid.com 17-jun-91
- o added a compile-time switch to turn on simple sanity checking;
- o put back the obsolete byte-codes for error-detection;
- o added a new instruction, unbind_all, which I will use for
- tail-recursion elimination;
- o made temp_output_buffer_show be called with the right number
- of args;
- o made the new bytecodes be called with args in the right order;
- o added metering support.
-
-by Hallvard:
- o added relative jump instructions;
- o all conditionals now only do QUIT if they jump.
- */
-