_OPERATION_TABLE

Metadatacopy
struct _OPERATION_TABLE {
    unsigned long Function;/* 0x0  4 */
    int OperationCode : 12;/* 0x4:0  4 */
    int FormatOperand1 : 4;/* 0x4:12  4 */
    int FormatOperand2 : 4;/* 0x4:16  4 */
    int FormatResult : 4;/* 0x4:20  4 */
    unsigned long ValidOperand1 : 1;/* 0x4:24  4 */
    unsigned long ValidOperand2 : 1;/* 0x4:25  4 */
    unsigned long ValidResult : 1;/* 0x4:26  4 */
};
/* source: Windows 2000 RC2 DDK Alpha libcntpr.lib CodeView type records; build 2128 per the DDK's ntverp.h */