A2osX/_Docs/LIBBLKDEV.md
2017-03-13 16:33:47 +01:00

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*** Auto generated by docgen.cmd ***
#GetProDOSCatSize
+ Compute space needed for ProDOS Catalog
##In :
+ PUSHW = DevSize (in 512b blocks)
##Out :
+ X=BlockCount (max 22)
+ A=PageCount (max 44)
#BuildProDOSCat
##In :
+ PUSHW = DevSize (in 512b blocks)
+ PUSHW = VolName (PSTR)
+ PUSHW = DstBuf (Zero filled)
+ Blk0 : ProDOS.BootBlk
+ Blk1 : SOS.BootBlk
+ Blk2,3,4,5 : Volume Directory
+ Blk6.... : Volume Bitmap (4096/Blk)
+ max devSize = 65535 -> max 16 Bitmap Blk
+ absolute MAX DstBuf size=
+ 7 for Disk II(280blk),3.5(1600),3.5HD(2880)
+ 22 for 32mb Hardisk...
#TrkW16s
Write a track (16 sectors)
##In:
+ PUSHW = Ptr to 16*256 buffer
+ PUSHB = TrackNum * 4 : 0->140+
+ PUSHB = DSSS0000
##Out:
+ CC : success
+ CS : A = Error
+ A=0, currently starting/seeking...
#TrkWNIB
Write a track (NIBBLE)
##In:
+ PUSHW = Ptr to NIBBLE buffer (0 ended)
+ PUSHB = TrackNum * 4 : 0->140+
+ PUSHB = DSSS0000
##Out:
+ CC : success
+ CS : A = Error
+ A=0, currently starting/seeking...