Re: [Qemu-devel] [PATCH 01/13] target-s390x: fix exception for invalid operation code

2015-06-02 Thread Richard Henderson
On 06/01/2015 02:24 PM, Aurelien Jarno wrote: > When an operation code is not recognized (ie invalid instruction) an > operation exception should be generated instead of a specification > exception. The latter is for valid opcode, with invalid operands or > modifiers. > > This give a very basic GD

[Qemu-devel] [PATCH 01/13] target-s390x: fix exception for invalid operation code

2015-06-01 Thread Aurelien Jarno
When an operation code is not recognized (ie invalid instruction) an operation exception should be generated instead of a specification exception. The latter is for valid opcode, with invalid operands or modifiers. This give a very basic GDB support in the guest, as it uses the invalid opcode 0x00