From 208c13cf2060d510237692c3aeae10bf4b8fcb4a Mon Sep 17 00:00:00 2001 From: lkcl Date: Wed, 18 Nov 2020 03:53:03 +0000 Subject: [PATCH] --- openpower/sv/16_bit_compressed.mdwn | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/openpower/sv/16_bit_compressed.mdwn b/openpower/sv/16_bit_compressed.mdwn index a00cd91fc..ac393a9ff 100644 --- a/openpower/sv/16_bit_compressed.mdwn +++ b/openpower/sv/16_bit_compressed.mdwn @@ -220,6 +220,18 @@ is "nop" | 1 | 0 000 | | 000.0 | 0 00 | 0 00 | 0 | nop | 1 | nonzero | | 000.0 | 0 00 | 0 00 | 0 | TBD +Notes: + +* The 10-bit nop (bit 15, M=1) is intended for circumstances + where alignment to 32-bit before rwturning to v3.0B is required. + M=1 being an indication + "return to Standard v3.0B Encoding Mode" +* The 16-bit nop (bit 0, N=1) is intended for circumstances where a + return to Standard v3.0B Encoding is required for one cycle + but one cycle where alignment to a 32-bit boundary is needed +* If for any reason multiple 16 bit nops are needed in succession + the 10-bit variant can be used, because each one returns to + Standard v3.0B Encoding Mode, each time. ### Branch -- 2.30.2