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GetCC -- get condition codes in a 68010 compatible way.
conditions = GetCC()
D0
UWORD GetCC(void);
The 68000 processor has a "MOVE SR,<ea>" instruction which gets a
copy of the processor condition codes.
On the 68010,20 and 30 CPUs, "MOVE SR,<ea>" is privileged. User
code will trap if it is attempted. These processors need to use
the "MOVE CCR,<ea>" instruction instead.
This function provides a means of obtaining the CPU condition codes
in a manner that will make upgrades transparent. This function is
VERY short and quick.
conditions - the 680XX condition codes
This call is guaranteed to preserve all registers. This function
may be implemented as code right in the jump table.
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