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<text x="5" y="15" font-family="sans-serif">コール</text>
<text x="5" y="35">CALL subroutine</text>
<text x="205" y="25">CALL</text>
<text x="255" y="25">adr[,x]</text>
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<text x="5" y="15" font-family="sans-serif">リターン</text>
<text x="5" y="35">RETurn form subroutine</text>
<text x="205" y="25">RET</text>
<text x="255" y="25"></text>
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<text x="0" y="15">SP</text><text x="25" y="15">←</text><text x="45" y="15">(SP) -L 1,</text>
<text x="0" y="30">(SP)</text><text x="30" y="30">←</text><text x="45" y="30">(PR),</text>
<text x="0" y="45">PR</text><text x="25" y="45">←</text><text x="45" y="45">実効アドレス</text>
<text x="0" y="65">PR</text><text x="25" y="65">←</text><text x="45" y="65">( (SP) ),</text>
<text x="0" y="80">SP</text><text x="25" y="80">←</text><text x="45" y="80">(SP) +L 1</text>
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<text x="620" y="45">—</text>
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