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( n -- Fetches block n and write it to BLK( )
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: BLK@* 0x34 RAM+ ;
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( n -- Write back BLK( to storage at block n )
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: BLK!* 0x36 RAM+ ;
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( Current blk pointer in ( )
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: BLK> 0x38 RAM+ ;
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( Whether buffer is dirty )
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: BLKDTY 0x3a RAM+ ;
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: BLK( 0x3c RAM+ @ ;
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: BLK) BLK( 1024 + ;
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