Re: [Qemu-devel] [PATCH] target/m68k: use EXCP_ILLEGAL instead of EXCP_UNSUPPORTED

2018-10-31 Thread Richard Henderson
On 10/30/18 4:55 PM, Laurent Vivier wrote: > Coldfire defines an "Unsupported instruction" exception if execution > of a valid instruction is attempted but the required hardware is not > present in the processor. > > We use it with instructions that are in fact undefined or illegal, > and the

[Qemu-devel] [PATCH] target/m68k: use EXCP_ILLEGAL instead of EXCP_UNSUPPORTED

2018-10-30 Thread Laurent Vivier
Coldfire defines an "Unsupported instruction" exception if execution of a valid instruction is attempted but the required hardware is not present in the processor. We use it with instructions that are in fact undefined or illegal, and the exception expected in this case by the kernel is the