From 8823d01f14d8522f42475e1daba3c3d73805f386 Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Thu, 12 Mar 2009 11:20:05 +0100
Subject: tgsi: Begin documenting NV_vertex_program2 instruction set
 operations.

---
 .../auxiliary/tgsi/tgsi-instruction-set.txt        | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'src/gallium/auxiliary')

diff --git a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
index 9e70b957c75..88771bc9097 100644
--- a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
+++ b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
@@ -526,3 +526,45 @@ TGSI Instruction Specification
   dst.z = src0.x + src1.x * src2.x + src1.y * src2.y
   dst.w = src0.y + src1.x * src2.z + src1.y * src2.w
 
+
+1.6  GL_NV_vertex_program2
+--------------------------
+
+
+1.6.1  ARA - Address Register Add
+
+  TBD
+
+
+1.6.2  ARR - Address Register Load With Round
+
+  dst.x = round(src.x)
+  dst.y = round(src.y)
+  dst.z = round(src.z)
+  dst.w = round(src.w)
+
+
+1.6.3  BRA - Branch
+
+  TBD
+
+
+1.6.4  CAL - Subroutine Call
+
+  push(pc)
+  pc = target
+
+
+1.6.5  RET - Subroutine Call Return
+
+  pc = pop()
+
+
+1.6.6  SSG - Set Sign
+
+  dst.x = (src.x > 0.0) ? 1.0 : (src.x < 0.0) ? -1.0 : 0.0
+  dst.y = (src.y > 0.0) ? 1.0 : (src.y < 0.0) ? -1.0 : 0.0
+  dst.z = (src.z > 0.0) ? 1.0 : (src.z < 0.0) ? -1.0 : 0.0
+  dst.w = (src.w > 0.0) ? 1.0 : (src.w < 0.0) ? -1.0 : 0.0
+
+
-- 
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