Re: [Qemu-devel] [PATCH] target/hppa: fix PSW Q bit behaviour to match hardware

[Richard Henderson]

On 1/29/19 7:14 PM, Sven Schnelle wrote:
> PA-RISC specification says: "Setting the PSW Q-bit, PSW{28}, to 1
> with this instruction, if it was not already 1, is an undefined
> operation." However, at least HP-UX 10.20 sets the Q bit from 0 to 1
> with the SSM instruction. Tested this both on HP9000/712 and
> HP9000/785/C3750, both machines set the Q bit from 0 to 1 without
> exception. This makes HP-UX 10.20 progress a little bit further.
> 
> Signed-off-by: Sven Schnelle <address@hidden>
> ---
>  target/hppa/op_helper.c | 5 -----
>  1 file changed, 5 deletions(-)

Queued, with much of this text copied into a comment in the code.


r~