Topic       : Pure Assembler Documentation
Author      : John Kormylo
Version     : PASM.HYP 1.0
Subject     : Documentation/Pure Assembler
Nodes       : 740
Index Size  : 20262
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : en
@default    : 
@help       : Help
@options    : +g -i -s +x +z -t4
@width      : 75
View Ref-File[ WD1772 Floppy Disk Controller ]

CR  Command Register
STR Status Register
TR  Track Register
SR  Sector Register
DR  Data Register

Commands:
  Restore (seek track 0)
  Seek (track DR)
  Step (continue previous direction)
  Step In
  Step Out
  Read Sector (sector SR)
  Write Sector (sector SR)
  Read Address (Track, Side, Sector Number, Sector Size, CRC) 6 bytes.
  Read Track (mixes data and addresses)
  Write Track (see FDC Control Bytes)
  Force Interrupt (stop current command)

See also ACSI and FDC.

XBIOS: Floprd, Flopwr and Flopfmt