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Format of ASPITAPE.SYS mtop parameter block

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Offset Size Description

00h

WORD

operation code
00h = "MTWEOF" write an end-of-file record
01h = "MTFSF" forward space file
02h = "MTBSF" backward space file
03h = "MTFSR" forward space record
04h = "MTBSR" backward space record
05h = "MTREW" rewind
06h = "MTOFFL" rewind and unload
07h = "MTNOP" perform TEST UNIT READY

02h

DWORD

repetition count