Changes
/* FDC Command Table (15 commands) */
| command byte 7 || colspan="8" | GPL: gap 3 length
|-
| command byte 8 || colspan="8" | DTLSTP: data length scan test (if command byte 51=scan contiguous, 2=0scan alternate)
|-
| Execution || colspan="8" | Data compared between the FDD and main-system
*Head Load Time = 2 to 254ms in 2ms increments
*Head Unload Time = 16 to 240ms in 16ms increments
*Step Rate Time = 1 to 16ms in 1ms increments(F = 1ms, E = 2ms, etc.)
*ND = Non-DMA mode
