Commit Graph

10 Commits

Author SHA1 Message Date
mark ec553ec8c0 New version of the ARM FPE core built. This core does not have all the
builtin veneer code. Instead this veneer code has been moved to kernel.
This removes the need for any runtime fixups of the fpe.
1997-07-08 19:41:28 +00:00
mark 02d0fd2ea5 Added function fpe_set_execption_mask() to allow the FP exception mask
to be manipulated.
During initialisation the exception mask is set to allow divide by zero
and overflow exceptions to be signaled.
1996-12-27 01:39:14 +00:00
mark 58e481e13b Call mcount() for all fpe core entry points if GPROF and PROFILE_ASM
are defined.
Switch to SVC32 mode before delivering FP exceptions and switch back
to UND32 mode afterwards before exiting.
1996-10-15 01:37:50 +00:00
mark 7b8910c01d Vastly simplified the FPE stubs code now that there are labels for all the
core entry points. i.e. the linker does the work rather than the stub code.
Optimised transferring the trapframe between UND32 and SVC32 mode stacks
in the fpe_post_proc handler.
Added experimental code to handle must of userret in UND32 mode. This means
that the copy of the trapframe and the switch to SVC32 mode is only needed
if mi_switch() has to be called. (This saves a vast number of pointless
trapframe copies).
1996-08-21 20:16:30 +00:00
mark 4973a32e6d RCS Id police. 1996-03-18 19:54:53 +00:00
thorpej 5c67e5fad9 New device attachment scheme:
- split softc size and match/attach out from cfdriver into
	  a new struct cfattach.

	- new "attach" directive for files.*.  May specify the name of
	  the cfattach structure, so that devices may be easily attached
	  to parents with different autoconfiguration semantics.
1996-03-17 01:16:48 +00:00
mark 23d71d4d59 Fixed undefined instruction handler chaining. The FPE will now correctly
pass on an undefined instruction if it was not an FP instruction.
1996-02-15 22:45:21 +00:00
mark 94fa0b2f1b post instruction emulation callback now expects a trapframe structure
to be passed as well as the fp frame.
FPE<->kernel glue code now builds a trapframe structure for passing in
and out of the post instruction emulation callback.
Signal delivery during FP emulation now works correctly.
1996-02-05 16:51:52 +00:00
mycroft fc9d84fb46 assym.s -> assym.h
(Some ports did this already.)
1996-02-02 02:34:09 +00:00
mark 386ad2ff0f Initial commit of the NetBSD/arm32 port. 1996-01-31 23:14:53 +00:00