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The TF536 on a CDTV (Project Abandoned)

https://www.exxosforum.co.uk/forum/viewtopic.php?t=1951

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Re: The TF536 on a CDTV

Posted: 17 Jun 2019 14:55
by terriblefire
utri007 wrote: 17 Jun 2019 14:11 I have made a lots of testing with burned CDs with CDTV. I have tested at least 4 different CD burners and burned CDs only works IF you burn them max 5x speed. Burning CDs with 32x wount work. There is no sensible explanation for this, I know.
I burned my CDs at 1x speed.

Re: The TF536 on a CDTV

Posted: 17 Jun 2019 22:20
by terriblefire
I tried patching cdtv.device... no joy.

However I did exchange some emails with Toni Willen and he suggested patching cdfs.device

Code: Select all

CODE:000031BC ; =============== S U B R O U T I N E =======================================
CODE:000031BC
CODE:000031BC
CODE:000031BC sub_31BC:                               ; CODE XREF: sub_7A0+6A↑p
CODE:000031BC                                         ; sub_F24+1A↑p ...
CODE:000031BC
CODE:000031BC arg_0           =  4
CODE:000031BC
CODE:000031BC                 move.l  d2,-(sp)
CODE:000031BE                 move.l  4+arg_0(sp),d0
CODE:000031C2                 move.l  #$10001,d1
CODE:000031C8                 addq.l  #4,d0
CODE:000031CA                 addq.l  #8,d0
CODE:000031CC                 move.l  d0,d2
CODE:000031CE                 movea.l (byte_4).w,a6
CODE:000031D2                 jsr     -$C6(a6)
CODE:000031D6                 tst.l   d0
CODE:000031D8                 beq.s   loc_31E0
CODE:000031DA                 movea.l d0,a0
CODE:000031DC                 move.l  d2,(a0)+
CODE:000031DE                 move.l  a0,d0
CODE:000031E0
CODE:000031E0 loc_31E0:                               ; CODE XREF: sub_31BC+1C↑j
CODE:000031E0                 move.l  (sp)+,d2
CODE:000031E2                 rts
CODE:000031E2 ; End of function sub_31BC
CODE:000031E2
Recon that one might be the badger. thats MEMF_CLEAR | MEMF_PUBLIC

So this is at address 0xF38706

Re: The TF536 on a CDTV

Posted: 17 Jun 2019 22:41
by terriblefire
Yup,

That works. Please donate to WinUAE if you were looking for TF support on the CDTV.
Capture.JPG

Re: The TF536 on a CDTV

Posted: 18 Jun 2019 11:25
by utri007
Great! How tight this is tied to version of cdfs.device?

Most of us has v 2.3 or 2.7 of extended roms. I have a 2.3 because it doesn't cause red tinted screen if floppy drive is not connected.

Re: The TF536 on a CDTV

Posted: 18 Jun 2019 14:05
by terriblefire
Its completely tied to the ROM. IMHO you should update the ROM rather than patch on the fly. I can give out a binary patch list for both ROM types eventually.

Re: The TF536 on a CDTV

Posted: 19 Jun 2019 08:10
by ed_dream
All my cd-r writing on 10x, and this works.
But my cdtv new condition. Not working really. Stay on table 20 years.

Re: The TF536 on a CDTV

Posted: 19 Jun 2019 18:22
by terriblefire
I've dug a little deeper into some issues @8 Bit Dreams reported.

Looks like there are more AllocMem()'s in the boot loader code. I'll have to find them and patch them.

Is here a standard format for distributing Amiga Binary Patches? Fogive my ignorance as i really dislike patching binaries.

Re: The TF536 on a CDTV

Posted: 19 Jun 2019 21:22
by terriblefire
terriblefire wrote: 19 Jun 2019 18:22 I've dug a little deeper into some issues @8 Bit Dreams reported.

Looks like there are more AllocMem()'s in the boot loader code. I'll have to find them and patch them.

Is here a standard format for distributing Amiga Binary Patches? Fogive my ignorance as i really dislike patching binaries.
I created a script to scan for all places that allocate memory (that dont take the mem type as a parameter to a function) ...

Code: Select all

patch address 00f00452 with 0x0002
patch address 00f00504 with 0x0002
patch address 00f008b2 with 0x0002
patch address 00f008f4 with 0x0002
patch address 00f00df0 with 0x0002
patch address 00f01a7e with 0x0002
patch address 00f01e64 with 0x0002
patch address 00f07662 with 0x0002
patch address 00f092e4 with 0x0002
patch address 00f09342 with 0x0002
patch address 00f09446 with 0x0002
patch address 00f0a740 with 0x0002
patch address 00f0a872 with 0x0002
patch address 00f0ae12 with 0x0002
patch address 00f0d372 with 0x0002
patch address 00f0d472 with 0x0002
patch address 00f38706 with 0x0002
patch address 00f38d86 with 0x0002
patch address 00f00db8 with 0x7202
patch address 00f0407c with 0x7202
patch address 00f089ba with 0x7202
patch address 00f0a004 with 0x7202
patch address 00f0a168 with 0x7202
patch address 00f0ab54 with 0x7202
patch address 00f0acca with 0x7202
patch address 00f0eef6 with 0x7202
patch address 00f0ef10 with 0x7202
patch address 00f0ef2a with 0x7202
patch address 00f0ef42 with 0x7202
patch address 00f10e88 with 0x7202
patch address 00f3b232 with 0x7202
There is a few of them.

Re: The TF536 on a CDTV

Posted: 19 Jun 2019 23:45
by terriblefire
patched all those locations and no joy. Wonder if the main KS alloc's any ram for disk buffers early on.

Re: The TF536 on a CDTV

Posted: 22 Oct 2019 06:24
by 8 Bit Dreams
played with TF536 + SCSI Hard Disk Drive
As expected - computer boots from TF card if CF is present, SCSI shows up, however partition isn't recognised..
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