forked from NRZCode/ia32-64
69 lines
2.7 KiB
HTML
69 lines
2.7 KiB
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg" xmlns:x86="http://www.felixcloutier.com/x86"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="stylesheet" type="text/css" href="style.css"></link><title>TILEZERO
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— Zero Tile</title></head><body><header><nav><ul><li><a href='index.html'>Index</a></li><li>December 2023</li></ul></nav></header><h1>TILEZERO
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— Zero Tile</h1>
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<table>
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<tr>
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<th>Opcode/Instruction</th>
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<th>Op/En</th>
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<th>64/32 bit Mode Support</th>
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<th>CPUID Feature Flag</th>
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<th>Description</th></tr>
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<tr>
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<td>VEX.128.F2.0F38.W0 49 11:rrr:000 TILEZERO tmm1</td>
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<td>A</td>
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<td>V/N.E.</td>
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<td>AMX-TILE</td>
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<td>Zero the destination tile.</td></tr></table>
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<h2 id="instruction-operand-encoding">Instruction Operand Encoding<a class="anchor" href="#instruction-operand-encoding">
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¶
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</a></h2>
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<table>
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<tr>
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<th>Op/En</th>
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<th>Tuple</th>
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<th>Operand 1</th>
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<th>Operand 2</th>
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<th>Operand 3</th>
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<th>Operand 4</th></tr>
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<tr>
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<td>A</td>
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<td>N/A</td>
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<td>ModRM:reg (w)</td>
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<td>N/A</td>
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<td>N/A</td>
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<td>N/A</td></tr></table>
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<h2 id="description">Description<a class="anchor" href="#description">
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¶
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</a></h2>
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<p>This instruction zeroes the destination tile.</p>
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<p>Any attempt to execute the TILEZERO instruction inside an Intel TSX transaction will result in a transaction abort.</p>
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<h2 id="operation">Operation<a class="anchor" href="#operation">
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¶
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</a></h2>
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<pre>TILEZERO tdest
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nbytes := palette_table[palette_id].bytes_per_row
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for i in 0 ... palette_table[palette_id].max_rows-1:
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for j in 0 ... nbytes-1:
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tdest.row[i].byte[j] := 0
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zero_tilecfg_start()
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</pre>
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<h2 id="intel-c-c++-compiler-intrinsic-equivalent">Intel C/C++ Compiler Intrinsic Equivalent<a class="anchor" href="#intel-c-c++-compiler-intrinsic-equivalent">
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¶
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</a></h2>
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<pre>TILEZERO void _tile_zero(__tile dst);
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</pre>
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<h2 id="flags-affected">Flags Affected<a class="anchor" href="#flags-affected">
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¶
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</a></h2>
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<p>None.</p>
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<h2 class="exceptions" id="exceptions">Exceptions<a class="anchor" href="#exceptions">
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¶
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</a></h2>
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<p>AMX-E5; see Section 2.10, “Intel® AMX Instruction Exception Classes,” for details.</p><footer><p>
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This UNOFFICIAL, mechanically-separated, non-verified reference is provided for convenience, but it may be
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inc<span style="opacity: 0.2">omp</span>lete or b<sub>r</sub>oke<sub>n</sub> in various obvious or non-obvious
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ways. Refer to <a href="https://software.intel.com/en-us/download/intel-64-and-ia-32-architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4">Intel® 64 and IA-32 Architectures Software Developer’s Manual</a> for anything serious.
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</p></footer></body></html>
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