Changes applied to the SpeedDOS-ROMs of the 35 and 40 track
versions, so that they make use of the 1541-II patches.
These SpeedDOS upper ROMs (at 0xE000) have to be combined
with the lower part of a patched 1541-II ROM named
"1541-II-relocated.bin".


** 0xE69C (3):
        call patch instead of "lda #00; sed" || || ||
< 00e690 d1 c9 04 b0 03 20 27 d2 4c e7 eb aa a9 00 f8 e0
---                                          ** ** **
> 00e690 d1 c9 04 b0 03 20 27 d2 4c e7 eb aa 4c 7f c0 e0


** 0xE780 (1):
         || old, unneeded code removed
< 00e780 60 8d 03 18 a9 68 8d 00 1c a9 6f 8d 02 1c 4c b1
---      **
> 00e780 ea 8d 03 18 a9 68 8d 00 1c a9 6f 8d 02 1c 4c b1


** 0xEA69 (2):          call patch  || ||
< 00ea60 10 09 60 ad 00 18 10 fa 4c 5b e8 4c d7 e8 a2 00
---                                 ** **
> 00ea60 10 09 60 ad 00 18 10 fa 4c c0 c0 4c d7 e8 a2 00


** 0xEB22 (3): || || ||  call patch instead of "ldx #45; txs"
< 00eb20 71 ea a2 45 9a ad 00 1c 29 f7 8d 00 1c a9 01 8d
---            ** ** **
> 00eb20 71 ea 4c b9 c0 ad 00 1c 29 f7 8d 00 1c a9 01 8d


** 0xEC05 (2):          || ||  call patch
< 00ec00 a5 7c f0 03 4c 5b e8 58 a9 0e 85 72 a9 00 85 6f
---                     ** **
> 00ec00 a5 7c f0 03 4c c0 c0 58 a9 0e 85 72 a9 00 85 6f


** 0xEE1E (2):                         call patch  || ||
< 00ee10 a5 e2 10 05 a9 33 4c c8 c1 29 01 85 7f 20 00 c1
---                                                ** **
> 00ee10 a5 e2 10 05 a9 33 4c c8 c1 29 01 85 7f 20 a6 c0


** 0xEE3E (2):                         call patch  || ||
< 00ee30 12 b9 01 02 95 13 20 60 fb a9 01 85 80 20 c6 c8
---                                                ** **
> 00ee30 12 b9 01 02 95 13 20 60 fb a9 01 85 80 20 9f c0


** 0xEFC5 (4):
            call patch  || || || ||  instead of "cmp #03; bcs efce"
< 00efc0 d0 0c bd fa 02 c9 03 b0 05 a9 72 20 c7 e6 60 20
---                     ** ** ** **
> 00efc0 d0 0c bd fa 02 4c 93 c0 ea a9 72 20 c7 e6 60 20


** 0xF017 (4):    call patch  || || || ||  instead of "ldx 7f; lda ff,x"
< 00f010 60 a5 6f 48 a5 70 48 a6 7f b5 ff f0 05 a9 74 20
---                           ** ** ** **
> 00f010 60 a5 6f 48 a5 70 48 4c ca c0 ea f0 05 a9 74 20


Special notes:

  The 1541-II patch at memory location 0xFCAF has been
  omitted with the SpeedDOS-ROMs, because the 1541-II fix
  decreases a delay loop, while this delay is completely
  removed with SpeedDOS. To not change the behaviour of
  SpeedDOS, this delay loop removal has not been changed.


  An additional SpeedDOS patch has been applied at address
  0xFF7D. This is needed, so that this ROM can be used with
  the 6502-RAMROM hardware extension board for flashing other
  Flash-ROM banks. Without this patch, the 6502-RAMROM cannot
  be used, when the Flash mode is enabled.

  ** 0xFF7D (3):        "bit 67, nop" instead of  || || ||  "sta fe67,x"
  < 00ff70 ad 0c 18 29 08 d0 03 4c 16 e9 20 b7 e9 9d 67 fe
  ---                                             ** ** **
  > 00ff70 ad 0c 18 29 08 d0 03 4c 16 e9 20 b7 e9 24 67 ea


  The possibly alternative checksum byte change at address
  0xFFE5 has been omitted for the SpeedDOS ROMs, because
  this address is used by SpeedDOS routines.


  Some spare space of the lower ROM patch area (0xC0E9) is
  used for version string information instead of changing the
  ident strings (SPEEDDOS 2.7 1541).


  The checksum byte at address 0xFEE6 is being recalculated
  independently for the 35 and 40 track version of the
  SpeedDOS ROM after applying all patches.