Reading GCR formatted floppies is now supported, formattimg and writing is to be done. Images read use phisical sector order. Interleaving is required for use of images in Mame etc.
Select disk type 6 in monitor ('t 6').
Support for DD/SS floppies, e.g. DEC RX50
Select with 't 5'
Monitor command to temporarily modify disk geometry
'g t,s[,ts]' max tracks, sectors, track spacing (1/2)
Monitor command to read low level nibble/flux data
'n t,d,m' track, delay from index hole/ms, mode
mode: 1 Read nibble data with no wait 2 Read flux data (cycles between pulses) 3 Read nibbles after delay and waiting for GCR sector header 4 Read nibbles after delay and waiting for GCR data header
Caching for disk reads, nibble data
Buffer size increase to 6656 bytes (1 nibble track) on Atmega MEGA
Support for AppleII floppies
Reading GCR formatted floppies is now supported, formattimg and writing is to be done. Images read use phisical sector order. Interleaving is required for use of images in Mame etc.
Select disk type 6 in monitor ('t 6').
Support for DD/SS floppies, e.g. DEC RX50
Select with 't 5'
Monitor command to temporarily modify disk geometry
'g t,s[,ts]' max tracks, sectors, track spacing (1/2)
Monitor command to read low level nibble/flux data
'n t,d,m' track, delay from index hole/ms, mode
mode: 1 Read nibble data with no wait 2 Read flux data (cycles between pulses) 3 Read nibbles after delay and waiting for GCR sector header 4 Read nibbles after delay and waiting for GCR data header
Caching for disk reads, nibble data
Buffer size increase to 6656 bytes (1 nibble track) on Atmega MEGA