Re: [PATCH v2 08/19] target/ppc: Sign-extend large decrementer to 64-bits

2023-09-04 Thread Nicholas Piggin
On Fri Sep 1, 2023 at 10:25 PM AEST, Cédric Le Goater wrote: > Nick, > > On 8/8/23 06:19, Nicholas Piggin wrote: > > When storing a large decrementer value with the most significant > > implemented bit set, it is to be treated as a negative and sign > > extended. > > > > This isn't hit for book3s

Re: [PATCH v2 08/19] target/ppc: Sign-extend large decrementer to 64-bits

2023-09-01 Thread Cédric Le Goater
Nick, On 8/8/23 06:19, Nicholas Piggin wrote: When storing a large decrementer value with the most significant implemented bit set, it is to be treated as a negative and sign extended. This isn't hit for book3s DEC because of another bug, fixing it in the next patch exposes this one and can

[PATCH v2 08/19] target/ppc: Sign-extend large decrementer to 64-bits

2023-08-07 Thread Nicholas Piggin
When storing a large decrementer value with the most significant implemented bit set, it is to be treated as a negative and sign extended. This isn't hit for book3s DEC because of another bug, fixing it in the next patch exposes this one and can cause additional problems, so fix this first. It