From: Luke Kenneth Casson Leighton Date: Sun, 7 Oct 2018 06:18:30 +0000 (+0100) Subject: clarify about exceptions X-Git-Tag: convert-csv-opcode-to-binary~4979 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4695dd001408c27ff2bf22234c579d4fb37724e9;p=libreriscv.git clarify about exceptions --- diff --git a/simple_v_extension/specification.mdwn b/simple_v_extension/specification.mdwn index 1b09d88be..1d0a173bc 100644 --- a/simple_v_extension/specification.mdwn +++ b/simple_v_extension/specification.mdwn @@ -772,17 +772,9 @@ during the hardware loop, **not** the offset. # Exceptions -> What does an ADD of two different-sized vectors do in simple-V? - -* if the two source operands are not the same, throw an exception. -* if the destination operand is also a vector, and the source is longer - than the destination, throw an exception. - > And what about instructions like JALR?  -> What does jumping to a vector do? -* Throw an exception. Whether that actually results in spawning threads - as part of the trap-handling remains to be seen. +answer: they're not vectorised, so not a problem # Hints