Re: [PATCH v2 04/57] target/arm: Add handling for PSR.ECI/ICI

2021-06-14 Thread Richard Henderson
On 6/14/21 8:09 AM, Peter Maydell wrote: On A-profile, PSR bits [15:10][26:25] are always the IT state bits. On M-profile, some of the reserved encodings of the IT state are used to instead indicate partial progress through instructions that were interrupted partway through by an exception and ca

[PATCH v2 04/57] target/arm: Add handling for PSR.ECI/ICI

2021-06-14 Thread Peter Maydell
On A-profile, PSR bits [15:10][26:25] are always the IT state bits. On M-profile, some of the reserved encodings of the IT state are used to instead indicate partial progress through instructions that were interrupted partway through by an exception and can be resumed. These resumable instructions