From 9d8a797103568d98ff15c473e6780195612fbbe3 Mon Sep 17 00:00:00 2001 From: lkcl Date: Sun, 24 Jul 2022 23:28:17 +0100 Subject: [PATCH] --- openpower/sv/executive_summary.mdwn | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/openpower/sv/executive_summary.mdwn b/openpower/sv/executive_summary.mdwn index ced048274..f0e2ca470 100644 --- a/openpower/sv/executive_summary.mdwn +++ b/openpower/sv/executive_summary.mdwn @@ -7,6 +7,12 @@ allocation of opcodes (five) to implement, whereas any other Vector implementation would require an intrusive fundamental overhaul of the Power ISA. +*If not done as carefully as SVP64, the addition of any other Scalable +Vector Extension would require a significant number of opcodes, putting +further pressure on Major Opcode space which was never designed with +Scalable Vectors in mind in the first place. Contrast with RISC-V which was +designed over a 7 year period with Cray-style Vectors right from the start.* + It is extremely important to think of Simple-V as a 2-Dimensional ISA: instructions vertical and registers horizontal otherwise it will be difficult to grasp and appreciate its RISC simplicity. -- 2.30.2