Re: [Qemu-devel] [PATCH 1/2] decodetree: Initial support for variable-length ISAs

2022-06-29 Thread Peter Maydell
On Thu, 31 Jan 2019 at 21:10, Richard Henderson wrote: > > Assuming that the ISA clearly describes how to determine > the length of the instruction, and the ISA has a reasonable > maximum instruction length, the input to the decoder can be > right-justified in an appropriate insn word. > > This is

[Qemu-devel] [PATCH 1/2] decodetree: Initial support for variable-length ISAs

2019-01-31 Thread Richard Henderson
Assuming that the ISA clearly describes how to determine the length of the instruction, and the ISA has a reasonable maximum instruction length, the input to the decoder can be right-justified in an appropriate insn word. This is not 100% convenient, as out-of-line %fields are numbered relative to