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.
