microcode: Do not save history_register locally.
authorMatt Birkholz <matt@birchwood-abbey.net>
Sat, 16 Sep 2017 21:38:27 +0000 (14:38 -0700)
committerMatt Birkholz <matt@birchwood-abbey.net>
Sat, 16 Sep 2017 22:36:53 +0000 (15:36 -0700)
commit0093a03574bbba793d955f988790511cd83690af
treef12180ab8ef7bbe9987d8c40931e9ae6b43962d6
parentede89793ecb0e62ab0f24eabaf5a0b60127b42b9
microcode: Do not save history_register locally.

The required change to C_call_scheme is described but not implemented.
C_call_scheme has other problems(?).  Preferring a rotated history to
a broken history (broken by a GC during a callback) for now.
src/microcode/interp.h