Jon North
Your Sinclair Poke Tapes

PILOT 919x[P 2168] (663x[P 2168] in the first version, YS 63)
SYNC standard P 667, P 735
DATA
  bit 0 = DP 530
  bit 1 = DP 1047
  FLAG BYTE #ff
  PARITY BYTE present

The loading routine is a copy of a standard ROM routine with changed timing constans:
#0415->#0003 (#0002 in the first version, YS 63)
#b0->#6a
#b2->#6b
#cb->#7a
#16->#0d

The saving routine is a copy of a standard ROM routine with changed timing constans:
#0c98->#0398 (#0298 in the first version, YS 63)
#3b->#24 (#19 in the first version, YS 63)
#42->#28
#3e->#25
#31->#1d