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Detail:
  This change fixes ticket #225 (post-indexed LDFD via r13 sometimes reading
  corrupted values).
  It also fixes LDFS, LDFP and LDFE, which suffered from the same problem.
  The post-increment was done too early, which left the values to be loaded
  unprotected below r13_svc, so interrupt routines dropping into SVC mode
  would trample over them. With my fix, the values are loaded from the stack
  while interrupts are still disabled, which protects them against corruption.
Admin:
  Tested on various RISC OS platforms.
Changes by:
  Martin Wuerthner

Version 4.28. Tagged as 'FPASC-4_28'

Detail:
  FPASC is still distributed as a set of pre-built binaries, selected on the
  basis of the Machine build variable. Now that the OMAP3 port has switched
  to using Machine="CortexA8", we need a new pre-built binary. This one is
  copied from the Tungsten binary, as both can use a CELM build variant.
Admin:
  Not yet tested. Retagged as FPASC-4_27 as the addition of this file will
  not affect any builds using the existing tag.

Detail:
  We're still waiting for clearance for ARM to release the sources to
  FPEmulator/FPASC. The sources can build many different variants depending
  upon which target machine(s) are required and which OS facilities are
  available, but for now we're bodging this binary-only release to support
  two pre-built binaries (rather than the Tungsten-only build previously
  offered). These are:
  * M-variant, suitable for machines with or without hardware FPA, and where
    only ARMv3 instructions are used
  * CELM-variant, suitable only for machines without hardware FPA, and using
    ARMv4 and ARMv5 instructions
  Both variants assume they are running on an Ursula kernel or later.
Admin:
  Not tested, but should be a low-risk change.

Version 4.27. Tagged as 'FPASC-4_27'

This is the result of executing the BBE build phase on a complete Tungsten
ROM build. It may be linked into any other compatible ROM builds in the same
way as if the source was available, but obviously it cannot be studied or
improved upon in its current form, and it is not portable to any incompatible
architecture variants or ABIs.
It is hoped that in future this will be replaced by a full source release.