Changes between Version 33 and Version 34 of GcnInstrsVop2


Ignore:
Timestamp:
11/25/17 22:00:28 (6 years ago)
Author:
trac
Comment:

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  • GcnInstrsVop2

    v33 v34  
    109109</tbody>
    110110</table>
    111 <p>List of fields for VOP3A/VOP3B encoding (GCN 1.2):</p>
     111<p>List of fields for VOP3A/VOP3B encoding (GCN 1.2/1.4):</p>
    112112<table>
    113113<thead>
    … …  
    133133<td>SDST</td>
    134134<td>Scalar destination operand (VOP3B)</td>
     135</tr>
     136<tr>
     137<td>11-14</td>
     138<td>OPSEL</td>
     139<td>Operand selection (VOP3A) (GCN 1.4)</td>
    135140</tr>
    136141<tr>
    … …  
    192197<p>Negation and absolute value can be combined: <code>-ABS(V0)</code>. Modifiers CLAMP and
    193198OMOD (MUL:2, MUL:4 and DIV:2) can be given in random order.</p>
     199<p>Operand half selection (OPSEL) take value with bits number depends of number operands.
     200Last bit control destination operand. Zero in bit choose lower 16-bits in dword,
     201one choose higher 16-bits. Example: op_sel:[0,1,1] - higher 16-bits in second source and
     202in destination.</p>
    194203<p>Limitations for operands:</p>
    195204<ul>