CVS commit: src/sys/arch/m68k/fpe

["Tetsuya Isaki" <isaki%netbsd.org@localhost>]

Module Name:    src
Committed By:   isaki
Date:           Sat Dec 28 11:09:43 UTC 2024

Modified Files:
        src/sys/arch/m68k/fpe: fpu_emulate.c

Log Message:
m68k/fpe: Several bugfixes in FDBcc and FTRAPcc emulation.
In fpu_emul_type1(),
- If test_cc() returns >0, it's an error, that is an illegal instruction in
  this case.  So it should just return without doing anything.
  By this fix, FTRAPcc with illegal cc now causes SIGILL correctly.
- In result, branch can only be 0 or -1 after that.  It makes code simple.
  By this cleanup, FDBcc with illegal cc now causes SIGILL correctly.
- FTRAPcc must advance PC regardless of whether the condition is met.
  (although FTRAPcc does not work at this point by anothor problem)


To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.44 src/sys/arch/m68k/fpe/fpu_emulate.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.