From: lkcl Date: Wed, 24 May 2023 12:21:08 +0000 (+0100) Subject: (no commit message) X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=10aaee443292ec57dca9b95c6039f2e98f0a877a;p=libreriscv.git --- diff --git a/simple_v_extension/daxpy_example.mdwn b/simple_v_extension/daxpy_example.mdwn index 902f02d88..d870523be 100644 --- a/simple_v_extension/daxpy_example.mdwn +++ b/simple_v_extension/daxpy_example.mdwn @@ -16,9 +16,10 @@ Relies on post-increment, relies on no overlap between x and y in memory, and critically relies on y overwrite. x is post-incremented when read, but y is post-incremented on write. Element-Strided ensures the Immediate (8) results in a contiguous LD (or store) -despite RA being marked Scalar. RA is Scalar so that only one +despite RA being marked Scalar. For `sv.lfdup`, RA is Scalar so that only one LD/ST Update "wins": the last write to RA is the address for -the next block. +the next block. However for `sv.lfd/els` the Element-Striding causes +a contiguous Vector Load *without* modifying RA. ``` # r5: n count; r6: x ptr; r7: y ptr; fp1: a