"lyricalnanoha" <lyricalnanoha@usotsuki.hoshinet.org> wrote in message
alpine.DEB.0.99.0812241421001.24180@andisteele.dosius.ath.cx">news:alpine.DEB.0.99.0812241421001.24180@andisteele.dosius.ath.cx...
SNIP<
One usually considers the highest-level stuff as needing to be loaded from
disk, but it would seem with the IIgs that the high-level stuff is in ROM,
and only the low-level stuff needs to be pulled from disk!
Well, the IIgs has much of the toolbox in ROM but as new tools were added
and old ones patched more and more ended up being loaded from disk. I also
doubt that the ROM 3 and ROM 1 have the same entry points for the toolbox
routine (not sure about that) since all tool calls are done through a table
that is set up initially.
The really low-level stuff is done pretty much like you are used to with any
other Apple II. Stuffing stuff in registers and banging on softswitches.