Changes between Version 3 and Version 4 of GcnInstrsVop3

Timestamp:

12/06/15 00:00:17 (8 years ago)

Author:

trac

Comment:

--

GcnInstrsVop3

@@ -973 +973 @@
 <code>VDST = (UINT32)(SRC0&amp;0xffffff) * (UINT32)(SRC1&amp;0xffffff) + SRC2</code></p>
 <h4>V_MIN3_F32</h4>
-<p>Opcode: 337 (0x151) for GCN 1.0/1.1; 465 (0x1d0) for GCN 1.2<br />
-Syntax: V_MIN3_B32 VDST, SRC0, SRC1, SRC2  </p>
+<p>Opcode: 337 (0x151) for GCN 1.0/1.1; 465 (0x1d1) for GCN 1.2<br />
+Syntax: V_MIN3_F32 VDST, SRC0, SRC1, SRC2<br />
+Description: Choose smallest value from FP values SRC0, SRC1, SRC2, and store it to VDST.<br />
+Operation:<br />
+<code>VDST = MIN3(ASFLOAT(SRC0), ASFLOAT(SRC1), ASFLOAT(SRC2))</code></p>
+<h4>V_MULLIT_F32</h4>
+<p>Opcode: 336 (0x150) for GCN 1.0/1.1; 464 (0x1d0) for GCN 1.2<br />
+Syntax: V_MULLIT_F32 VDST, SRC0, SRC1, SRC2<br />
+Description: Multiply FP value SRC0 and FP value SRC1, and store it to VDST if FP value in
+SRC2 is greater than zero, otherwise, store -MAX_FLOAT to VDST.
+If one of value is 0.0 and previous condition is satisfied then always store
+0.0 to VDST (do not apply IEEE rules for 0.0*x).<br />
+Operation:<br />
+<code>VDST = -MAX_FLOAT
+if (ASFLOAT(SRC2) &gt; 0.0 &amp;&amp; !ISNAN(ASFLOAT(SRC2)))
+{
+    VDST = 0.0
+    if (ASFLOAT(SRC0)!=0.0 &amp;&amp; ASFLOAT(SRC1)!=0.0)
+        VDST = ASFLOAT(SRC0) * ASFLOAT(SRC1)
+}</code></p>
 }}}