GitLab

Detail:
  The bottom four words of the SVC stack were being preserved across calls
  to Wimp_Poll. This is a curious choice, since the bottom seven words are
  reserved to hold run-time data, and C libraries to date have only used
  two words (the library and client relocation offsets). Changed to save
  all seven reserved words across Wimp_Poll.
Admin:
  Tested briefly on an Iyonix, with no visible ill effects.

Version 0.71. Tagged as 'TaskWindow-0_71'