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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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v_06_07
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v6n7018b.txt
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1989-09-28
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405b
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12 lines
Table 2 -- Main Status Register
-------------------------------
bit 0 Drive 0 busy seeking
bit 1 Drive 1 busy seeking
bit 2 Drive 2 busy seeking
bit 3 Drive 3 busy seeking
bit 4 FDC Busy doing a command (other than seek)
bit 5 Non-DMA mode
bit 6 DIO: Data Input/Output (1 = input)
bit 7 RQM: Request for Master (1 = ready for transfer)