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51 Commits (707dd619a039240304a6245480dff05c70b219b6)

Author SHA1 Message Date
Paul Mackerras 856e9e955f core: Add framework for an FPU 
This adds the skeleton of a floating-point unit and implements the
mffs and mtfsf instructions.

Execute1 sends FP instructions to the FPU and receives busy,
exception, FP interrupt and illegal interrupt signals from it.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
 5 years ago