Mihai Parparita 134339ae9d Mitigate performance impact of respecting FP bit ...

In #135 we switched from a static OpcodeGrabber table to a
curOpcodeGrabber pointer in ppc_main_opcode. This results in an extra
indirection (as far as generated assembly having an additional load),
which reduces execution speed.

Switch to making the opcode grabber into a parameter to
ppc_main_opcode, and make ppc_exec_inner keep it up to date (via an
EXEF_OPCODE exception flag).

Also fixes FPU instructions in ppctests - we now need to set the FP
MSR bit when initializing the CPU.

2025-01-25 17:58:31 -08:00

66 KiB

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