::: Area #24 (Programmers Forum)
Message: #7518 (Read 15 times, has 0 replies, 571 bytes)
Date   : Fri Aug  7 15:33:39 1998
From   : Piers (#632)
To     : Pontus Lurcock (#2091)
Subject: Just a Thought... (reply to #7315)

  PL> For real fun, you could have another PSR bit to control endian-ness,
  PL> allowing each instruction to be two instructions...

The ROM initialisation code in RO3.61+ is cunning - the ARM7500 (FE?)
initialises with a 16-bit memory bus, but the ARM710/SA etc initialise
with a 32-bit memory bus. So the code is written in such a way to determine
which processor it is running on by using cleverly picked instructions
which, when mapped against the 16-bit memory bus appear as different
instructions to those when they're mapped against the 32-bit memory bus.

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