From 048793f19177551122192cc18e7e3253ec594ad8 Mon Sep 17 00:00:00 2001 From: Luke Kenneth Casson Leighton Date: Sun, 5 Apr 2020 15:47:03 +0100 Subject: [PATCH] add PCR mode to isans_letter --- openpower/isans_letter.mdwn | 1 + 1 file changed, 1 insertion(+) diff --git a/openpower/isans_letter.mdwn b/openpower/isans_letter.mdwn index a7c6b6792..03291680a 100644 --- a/openpower/isans_letter.mdwn +++ b/openpower/isans_letter.mdwn @@ -10,6 +10,7 @@ already found in the POWER instruction set, are added: * FPSCR's "NI" bit, setting non-IEEE754 FP mode * MSR's "LE" bit (and associated HILE bit), setting little-endian mode * MSR's "SF" bit, setting either 32-bit or 64-bit mode +* PCR's "compatibility" bits 60-62, V2.05 V2.06 V2.07 mode All of these are set by one instruction, that, once set, radically changes the entire behaviour and characteristics of subsequent instructions. -- 2.30.2