tree edd3743249cc1bd55f7a5ca199459fed4d76e62f
parent 08b2f15e67d9d9b3bda09e5bd3d89979bfc4f6b8
author Richard Henderson <richard.henderson@linaro.org> 1519987535 +0000
committer Peter Maydell <peter.maydell@linaro.org> 1519988625 +0000

decodetree: Propagate return value from translate subroutines

Allow the translate subroutines to return false for invalid insns.

At present we can of course invoke an invalid insn exception from within
the translate subroutine, but in the short term this consolidates code.
In the long term it would allow the decodetree language to support
overlapping patterns for ISA extensions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180227232618.2908-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>