From: "Maciej W. Rozycki" <ma...@codesourcery.com> CP1.FIR is read-only in hardware so gdbstub must respect it. We already respect it for CTC1 instructions, so do it here too.
Signed-off-by: Maciej W. Rozycki <ma...@codesourcery.com> Reviewed-by: Leon Alrae <leon.al...@imgtec.com> Signed-off-by: Leon Alrae <leon.al...@imgtec.com> --- target-mips/gdbstub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target-mips/gdbstub.c b/target-mips/gdbstub.c index 7e3a604..e86df0e 100644 --- a/target-mips/gdbstub.c +++ b/target-mips/gdbstub.c @@ -105,7 +105,7 @@ int mips_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) RESTORE_ROUNDING_MODE; break; case 71: - env->active_fpu.fcr0 = tmp; + /* FIR is read-only. Ignore writes. */ break; } return sizeof(target_ulong); -- 2.1.0