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Extract 4-bit track number (TRKADDR EXTRACTTRK)

z/OS DFSMSdfp Advanced Services
SC23-6861-01

The format of the execute form of the TRKADDR EXTRACTTRK macro is: 
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>>-+-------+--TRKADDR--EXTRACTTRK--+-,cchh--+--,REG=(rega)-----><
   '-label-'                       '-,(reg)-'                

Extracts the 4-bit track number to a register (CCCCcccH to 0000000H). The input field is returned unchanged.

Parent topic: Perform calculations and conversions with 28-bit cylinder addresses (TRKADDR macro)

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