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<a name="l1"></a><span class=cF2>//See </span><a href="/Wb/Doc/TimeDate.DD.HTML#l1"><span class=cF4>::/Doc/TimeDate.DD</span></a><span class=cF0>
<a name="l2"></a>
<a name="l3"></a></span><span class=cF9>U16</span><span class=cF0> </span><span class=cFB>mon_start_days1</span><span class=cF0>[12]={
<a name="l4"></a>0,31,59,90,120,151,181,212,243,273,304,334};
<a name="l5"></a></span><span class=cF9>U16</span><span class=cF0> </span><span class=cFB>mon_start_days2</span><span class=cF0>[12]={
<a name="l6"></a>0,31,60,91,121,152,182,213,244,274,305,335};
<a name="l7"></a>
<a name="l8"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>YearStartDate</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> year)
<a name="l9"></a>{</span><span class=cF2>//32-bit day since AD 0, given year number.</span><span class=cF0>
<a name="l10"></a> </span><span class=cF9>I64</span><span class=cF0> y1=year-1,yd4000=y1/4000,yd400=y1/400,yd100=y1/100,yd4=y1/4;
<a name="l11"></a> </span><span class=cF1>return</span><span class=cF0> year*365+yd4-yd100+yd400-yd4000;
<a name="l12"></a>}
<a name="l13"></a>
<a name="l14"></a></span><span class=cF9>CDate</span><span class=cF0> </span><span class=cF5>Struct2Date</span><span class=cF0>(</span><span class=cF9>CDateStruct</span><span class=cF0> *_ds)
<a name="l15"></a>{</span><span class=cF2>//Cvt CDateStruct to CDate.</span><span class=cF0>
<a name="l16"></a> </span><span class=cF9>CDate</span><span class=cF0> cdt;
<a name="l17"></a> </span><span class=cF9>I64</span><span class=cF0> i1,i2;
<a name="l18"></a> i1=</span><span class=cF5>YearStartDate</span><span class=cF0>(_ds-&gt;year);
<a name="l19"></a> i2=</span><span class=cF5>YearStartDate</span><span class=cF0>(_ds-&gt;year+1);
<a name="l20"></a> </span><span class=cF1>if</span><span class=cF0> (i2-i1==365)
<a name="l21"></a> i1+=</span><span class=cFB>mon_start_days1</span><span class=cF0>[_ds-&gt;mon-1];
<a name="l22"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l23"></a> i1+=</span><span class=cFB>mon_start_days2</span><span class=cF0>[_ds-&gt;mon-1];
<a name="l24"></a> cdt.date=i1+_ds-&gt;day_of_mon-1;
<a name="l25"></a> cdt.time=(_ds-&gt;sec10000+100*</span><span class=cF7>(</span><span class=cF0>_ds-&gt;sec100+100*(_ds-&gt;sec
<a name="l26"></a> +60*</span><span class=cF7>(</span><span class=cF0>_ds-&gt;min+60*_ds-&gt;hour</span><span class=cF7>)</span><span class=cF0>)</span><span class=cF7>)</span><span class=cF0>)&lt;&lt;21/(15*15*3*625);
<a name="l27"></a> </span><span class=cF1>return</span><span class=cF0> cdt;
<a name="l28"></a>}
<a name="l29"></a>
<a name="l30"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>DayOfWeek</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> i)
<a name="l31"></a>{</span><span class=cF2>//Day of week, given 32-bit day since AD 0.</span><span class=cF0>
<a name="l32"></a> i+=</span><span class=cF3>CDATE_BASE_DAY_OF_WEEK</span><span class=cF0>;
<a name="l33"></a> </span><span class=cF1>if</span><span class=cF0> (i&gt;=0)
<a name="l34"></a> </span><span class=cF1>return</span><span class=cF0> i % 7;
<a name="l35"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l36"></a> </span><span class=cF1>return</span><span class=cF0> 6-(6-i)%7;
<a name="l37"></a>}
<a name="l38"></a>
<a name="l39"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>Date2Struct</span><span class=cF0>(</span><span class=cF9>CDateStruct</span><span class=cF0> *_ds,</span><span class=cF9>CDate</span><span class=cF0> cdt)
<a name="l40"></a>{</span><span class=cF2>//Cvt CDate to CDateStruct.</span><span class=cF0>
<a name="l41"></a> </span><span class=cF9>I64</span><span class=cF0> i,k,date=cdt.date;
<a name="l42"></a> _ds-&gt;day_of_week=</span><span class=cF5>DayOfWeek</span><span class=cF0>(date);
<a name="l43"></a> _ds-&gt;year=(date+1)*100000/</span><span class=cF3>CDATE_YEAR_DAYS_INT</span><span class=cF0>;
<a name="l44"></a> i=</span><span class=cF5>YearStartDate</span><span class=cF0>(_ds-&gt;year);
<a name="l45"></a> </span><span class=cF1>while</span><span class=cF0> (i&gt;date) </span><span class=cF7>{</span><span class=cF0>
<a name="l46"></a> _ds-&gt;year--;
<a name="l47"></a> i=</span><span class=cF5>YearStartDate</span><span class=cF0>(_ds-&gt;year);
<a name="l48"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l49"></a> date-=i;
<a name="l50"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>YearStartDate</span><span class=cF7>(</span><span class=cF0>_ds-&gt;year+1</span><span class=cF7>)</span><span class=cF0>-i==365) </span><span class=cF7>{</span><span class=cF0>
<a name="l51"></a> k=0;
<a name="l52"></a> </span><span class=cF1>while</span><span class=cF0> (date&gt;=</span><span class=cFB>mon_start_days1</span><span class=cF0>[k+1] &amp;&amp; k&lt;11)
<a name="l53"></a> k++;
<a name="l54"></a> date-=</span><span class=cFB>mon_start_days1</span><span class=cF0>[k];
<a name="l55"></a> </span><span class=cF7>}</span><span class=cF0> </span><span class=cF1>else</span><span class=cF0> </span><span class=cF7>{</span><span class=cF0>
<a name="l56"></a> k=0;
<a name="l57"></a> </span><span class=cF1>while</span><span class=cF0> (date&gt;=</span><span class=cFB>mon_start_days2</span><span class=cF0>[k+1] &amp;&amp; k&lt;11)
<a name="l58"></a> k++;
<a name="l59"></a> date-=</span><span class=cFB>mon_start_days2</span><span class=cF0>[k];
<a name="l60"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l61"></a> _ds-&gt;mon=k+1;
<a name="l62"></a> _ds-&gt;day_of_mon=date+1;
<a name="l63"></a> k=(625*15*15*3*cdt.time)&gt;&gt;21+1;
<a name="l64"></a> _ds-&gt;sec10000=</span><span class=cF5>ModU64</span><span class=cF0>(&amp;k,100);
<a name="l65"></a> _ds-&gt;sec100=</span><span class=cF5>ModU64</span><span class=cF0>(&amp;k,100);
<a name="l66"></a> _ds-&gt;sec=</span><span class=cF5>ModU64</span><span class=cF0>(&amp;k,60);
<a name="l67"></a> _ds-&gt;min=</span><span class=cF5>ModU64</span><span class=cF0>(&amp;k,60);
<a name="l68"></a> _ds-&gt;hour =k;
<a name="l69"></a>}
<a name="l70"></a>
<a name="l71"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>FirstDayOfMon</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> i)
<a name="l72"></a>{</span><span class=cF2>//First day of month, given 32-bit day since AD 0.</span><span class=cF0>
<a name="l73"></a> </span><span class=cF9>CDateStruct</span><span class=cF0> ds;
<a name="l74"></a> </span><span class=cF9>CDate</span><span class=cF0> cdt=0;
<a name="l75"></a> cdt.date=i;
<a name="l76"></a> </span><span class=cF5>Date2Struct</span><span class=cF0>(&amp;ds,cdt);
<a name="l77"></a> ds.day_of_mon=1;
<a name="l78"></a> cdt=</span><span class=cF5>Struct2Date</span><span class=cF0>(&amp;ds);
<a name="l79"></a> </span><span class=cF1>return</span><span class=cF0> cdt.date;
<a name="l80"></a>}
<a name="l81"></a>
<a name="l82"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>LastDayOfMon</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> i)
<a name="l83"></a>{</span><span class=cF2>//Last day of month, given 32-bit day since AD 0.</span><span class=cF0>
<a name="l84"></a> </span><span class=cF9>CDateStruct</span><span class=cF0> ds;
<a name="l85"></a> </span><span class=cF9>CDate</span><span class=cF0> cdt=0;
<a name="l86"></a> cdt.date=i;
<a name="l87"></a> </span><span class=cF5>Date2Struct</span><span class=cF0>(&amp;ds,cdt);
<a name="l88"></a> ds.mon++;
<a name="l89"></a> </span><span class=cF1>if</span><span class=cF0> (ds.mon==13) </span><span class=cF7>{</span><span class=cF0>
<a name="l90"></a> ds.mon=0;
<a name="l91"></a> ds.year++;
<a name="l92"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l93"></a> ds.day_of_mon=1;
<a name="l94"></a> cdt=</span><span class=cF5>Struct2Date</span><span class=cF0>(&amp;ds);
<a name="l95"></a> </span><span class=cF1>return</span><span class=cF0> cdt.date-1;
<a name="l96"></a>}
<a name="l97"></a>
<a name="l98"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>FirstDayOfYear</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> i)
<a name="l99"></a>{</span><span class=cF2>//First day of year, given 32-bit day since AD 0.</span><span class=cF0>
<a name="l100"></a> </span><span class=cF9>CDateStruct</span><span class=cF0> ds;
<a name="l101"></a> </span><span class=cF9>CDate</span><span class=cF0> cdt=0;
<a name="l102"></a> cdt.date=i;
<a name="l103"></a> </span><span class=cF5>Date2Struct</span><span class=cF0>(&amp;ds,cdt);
<a name="l104"></a> ds.day_of_mon=1;
<a name="l105"></a> ds.mon=1;
<a name="l106"></a> cdt=</span><span class=cF5>Struct2Date</span><span class=cF0>(&amp;ds);
<a name="l107"></a> </span><span class=cF1>return</span><span class=cF0> cdt.date;
<a name="l108"></a>}
<a name="l109"></a>
<a name="l110"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>LastDayOfYear</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> i)
<a name="l111"></a>{</span><span class=cF2>//Last day of year, given 32-bit day since AD 0.</span><span class=cF0>
<a name="l112"></a> </span><span class=cF9>CDateStruct</span><span class=cF0> ds;
<a name="l113"></a> </span><span class=cF9>CDate</span><span class=cF0> cdt=0;
<a name="l114"></a> cdt.date=i;
<a name="l115"></a> </span><span class=cF5>Date2Struct</span><span class=cF0>(&amp;ds,cdt);
<a name="l116"></a> ds.day_of_mon=1;
<a name="l117"></a> ds.mon=1;
<a name="l118"></a> ds.year++;
<a name="l119"></a> cdt=</span><span class=cF5>Struct2Date</span><span class=cF0>(&amp;ds);
<a name="l120"></a> </span><span class=cF1>return</span><span class=cF0> cdt.date-1;
<a name="l121"></a>}
<a name="l122"></a>
<a name="l123"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cFD>Bcd2Bin</span><span class=cF0>(</span><span class=cF9>U64</span><span class=cF0> b)
<a name="l124"></a>{
<a name="l125"></a> </span><span class=cF9>I64</span><span class=cF0> i,res=0;
<a name="l126"></a> </span><span class=cF1>for</span><span class=cF0> (i=0;i&lt;16;i++) </span><span class=cF7>{</span><span class=cF0>
<a name="l127"></a> res=res*10+b&gt;&gt;60;
<a name="l128"></a> b&lt;&lt;=4;
<a name="l129"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l130"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l131"></a>}
<a name="l132"></a>
<a name="l133"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cFD>NowDateTimeStruct</span><span class=cF0>(</span><span class=cF9>CDateStruct</span><span class=cF0> *_ds)
<a name="l134"></a>{
<a name="l135"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l136"></a> </span><span class=cF1>U8</span><span class=cF0> *b=_ds;
<a name="l137"></a> </span><span class=cF1>Bool</span><span class=cF0> is_bcd;
<a name="l138"></a>
<a name="l139"></a> </span><span class=cF5>MemSet</span><span class=cF0>(_ds,0,</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CDateStruct</span><span class=cF7>)</span><span class=cF0>);
<a name="l140"></a> </span><span class=cF1>PUSHFD</span><span class=cF0>
<a name="l141"></a> </span><span class=cF1>CLI</span><span class=cF0>
<a name="l142"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>LBts</span><span class=cF7>(</span><span class=cF0>&amp;</span><span class=cFB>sys_semas</span><span class=cF0>[</span><span class=cF3>SEMA_SYS_DATE</span><span class=cF0>],0</span><span class=cF7>)</span><span class=cF0>)
<a name="l143"></a> </span><span class=cF1>PAUSE</span><span class=cF0>
<a name="l144"></a>
<a name="l145"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,0x0A);
<a name="l146"></a> </span><span class=cF1>do</span><span class=cF0> </span><span class=cF7>{</span><span class=cF0>
<a name="l147"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>InU8</span><span class=cF7>(</span><span class=cF0>0x71</span><span class=cF7>)</span><span class=cF0> &amp; 0x80)
<a name="l148"></a> </span><span class=cF1>PAUSE</span><span class=cF0>
<a name="l149"></a>
<a name="l150"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,0);
<a name="l151"></a> b[2]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l152"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,2);
<a name="l153"></a> b[3]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l154"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,4);
<a name="l155"></a> b[4]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l156"></a>
<a name="l157"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,6);
<a name="l158"></a> b[5]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l159"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,7);
<a name="l160"></a> b[6]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l161"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,8);
<a name="l162"></a> b[7]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l163"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,9);
<a name="l164"></a> b[8]=</span><span class=cF5>InU8</span><span class=cF0>(0x71);
<a name="l165"></a>
<a name="l166"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,0x0A);
<a name="l167"></a> </span><span class=cF7>}</span><span class=cF0> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>InU8</span><span class=cF7>(</span><span class=cF0>0x71</span><span class=cF7>)</span><span class=cF0> &amp; 0x80);
<a name="l168"></a>
<a name="l169"></a> </span><span class=cF5>OutU8</span><span class=cF0>(0x70,0x0B);
<a name="l170"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>InU8</span><span class=cF7>(</span><span class=cF0>0x71</span><span class=cF7>)</span><span class=cF0> &amp; 4)
<a name="l171"></a> is_bcd=</span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l172"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l173"></a> is_bcd=</span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l174"></a>
<a name="l175"></a> </span><span class=cF5>LBtr</span><span class=cF0>(&amp;</span><span class=cFB>sys_semas</span><span class=cF0>[</span><span class=cF3>SEMA_SYS_DATE</span><span class=cF0>],0);
<a name="l176"></a> </span><span class=cF1>POPFD</span><span class=cF0>
<a name="l177"></a> </span><span class=cF1>if</span><span class=cF0> (is_bcd)
<a name="l178"></a> </span><span class=cF1>for</span><span class=cF0> (i=2;i&lt;9;i++)
<a name="l179"></a> b[i]=</span><span class=cFD>Bcd2Bin</span><span class=cF0>(b[i]);
<a name="l180"></a>
<a name="l181"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;year&gt;255) _ds-&gt;year=255;
<a name="l182"></a> _ds-&gt;year+=2000;
<a name="l183"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;mon&gt;12) _ds-&gt;mon=12;
<a name="l184"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;day_of_mon&gt;31) _ds-&gt;day_of_mon=31;
<a name="l185"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;day_of_week&gt;6) _ds-&gt;day_of_week=6;
<a name="l186"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;hour&gt;23) _ds-&gt;hour=23;
<a name="l187"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;min&gt;59) _ds-&gt;min=59;
<a name="l188"></a> </span><span class=cF1>if</span><span class=cF0> (_ds-&gt;sec&gt;59) _ds-&gt;sec=59;
<a name="l189"></a>}
<a name="l190"></a>
<a name="l191"></a></span><span class=cF9>CDate</span><span class=cF0> </span><span class=cF5>Now</span><span class=cF0>()
<a name="l192"></a>{</span><span class=cF2>//Current datetime.</span><span class=cF0>
<a name="l193"></a> </span><span class=cF9>CDateStruct</span><span class=cF0> ds;
<a name="l194"></a> </span><span class=cFD>NowDateTimeStruct</span><span class=cF0>(&amp;ds);
<a name="l195"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>Struct2Date</span><span class=cF0>(&amp;ds)-</span><span class=cFB>local_time_offset</span><span class=cF0>;
<a name="l196"></a>}
</span></pre></body>
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