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https://gitlab.com/freepascal.org/fpc/source.git
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9788bb1316
of 2*sizeof(aword) bitpacked record that's kept in registers
(mantis #29669)
git-svn-id: trunk@33177 -
53 lines
1.2 KiB
ObjectPascal
53 lines
1.2 KiB
ObjectPascal
{$mode objfpc}
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program Project1;
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uses
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SysUtils;
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type
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TPackedIdLevel1 = 0..255;
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TPackedIdLevel2 = 0..65535;
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TPackedIdLevel3 = 0..65535;
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TPackedIdLevel4 = 0..65535;
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TPackedIdLevel5 = 0..255;
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TPackedId = bitpacked record
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clusterId : TPackedIdLevel5;
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agentId : TPackedIdLevel4;
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dataSourceId : TPackedIdLevel3;
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deviceId : TPackedIdLevel2;
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esmId : TPackedIdLevel1;
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end;
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function PackedIdToStr(const ipsid : qword) : string;
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begin
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result := IntToStr(TPackedId(ipsid).esmId) + '-' +
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IntToStr(TPackedId(ipsid).deviceId) + '-' +
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IntToStr(TPackedId(ipsid).dataSourceId) + '-' +
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IntToStr(TPackedId(ipsid).agentId) + '-' +
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IntToStr(TPackedId(ipsid).clusterId);
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if TPackedId(ipsid).clusterid<>123 then
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halt(1);
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if TPackedId(ipsid).agentid<>45678 then
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halt(2);
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if TPackedId(ipsid).datasourceid<>9012 then
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halt(3);
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if TPackedId(ipsid).deviceid<>34567 then
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halt(4);
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if TPackedId(ipsid).esmid<>89 then
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halt(5);
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end;
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var
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pi: TPackedId;
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begin
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pi.clusterid:=123;
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pi.agentid:=45678;
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pi.datasourceid:=9012;
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pi.deviceid:=34567;
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pi.esmid:=89;
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writeln(PackedIdToStr(qword(pi)));
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end.
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