GitLab

Ursula. Quite a hairy code merge really, so let's hope it is
worth it to someone. What you get (back after 2 or 3 years):
- much more efficient for largish numbers of DAs (relevance
  to current build = approx 0)
- fancy reason codes to support fast update of
  Switcher bar display (relevance = 0)
- support for clamped maximum area sizes, to avoid address
  space exhaustion with big memory (relevance = 0)
- better implementation of shrinkable DAs, performance
  wise (if lots of DAs, relevance = approx 0)
- support for 'Sparse' DAs. Holey dynamic areas, Batman!
  (relevance, go on someone use the darned things)
Moderately development tested on HAL/32bit ARM9 desktop.
Note the Switcher should be compiled to use the new
reason codes 6&7, for fabled desktop builds.

Also, during this work, so I could see the wood for the
trees, redid some source code clean up, removing pre-Medusa
stuff (like I did about 3 years ago on Ursula, sigh). That's
why loads of source files have changed. The new DA stuff
is confined pretty much to hdr.KernelWS and s.ChangeDyn.

Ta.

Version 5.35, 4.79.2.38. Tagged as 'Kernel-5_35-4_79_2_38'

Version 5.03. Tagged as 'Kernel-5_03'

If reassigned, ReadSysInfo3 returns &00x22200 in R0, to indicate that the
serial and parallel ports aren't compatible, and IDE and floppy are
unavailable.

Version 5.01. Tagged as 'Kernel-5_01'

This has been fixed. In addition, SMC669 and UMC669 chips are reported as
a different chip configuration by OS_ReadSysInfo 3 (values 4 and 5
respectively).
A few assertions added to catch the remaining cases where the RCMM stuff
won't work - those cases will involve a bit more reordering of hardware
initialisation.

Version 5.00. Tagged as 'Kernel-5_00'

Right arrow on a remote also acts as Delete.

Version 4.98. Tagged as 'Kernel-4_98'