From bbf84cca572584f05927efca89ea29fa13abccb8 Mon Sep 17 00:00:00 2001 From: Michal Krol Date: Tue, 10 Mar 2009 10:06:19 +0100 Subject: [PATCH] tgsi: Note that LOG and EXP are approximations. --- src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt index b36091fad34..f0e6aee4ca7 100644 --- a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt +++ b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt @@ -48,7 +48,7 @@ TGSI Instruction Specification dst.w = 1.0 / sqrt(abs(src.x)) -1.1.6 EXP - Exponential Base 2 +1.1.6 EXP - Approximate Exponential Base 2 dst.x = pow(2.0, floor(src.x)) dst.y = src.x - floor(src.x) @@ -56,7 +56,7 @@ TGSI Instruction Specification dst.w = 1.0 -1.1.7 LOG - Logarithm Base 2 +1.1.7 LOG - Approximate Logarithm Base 2 dst.x = floor(lg2(abs(src.x))) dst.y = abs(src.x) / pow(2.0, floor(lg2(abs(src.x)))) -- 2.30.2