2024-07-18 01:07 CEST

View Issue Details Jump to Notes ]
IDProjectCategoryView StatusLast Update
0002480Sinbad[All Projects] Generalpublic2016-01-01 16:58
ReporterMinuous 
Assigned ToStingRayProject InfoSinbad and the Throne of the Falcon (Master Designer Software/Cinemaware)
http://www.whdload.de/games/Sinbad.html
 
PrioritynormalSeverityminorReproducibilityalways
StatusresolvedResolutionfixed 
Summary0002480: Your ship can randomly permanently disappear. This doesn't happen on the floppy
DescriptionGameVersion: english
SlaveVersion: 1.2 from 07.07.2007

Your ship can randomly permanently disappear. This doesn't happen on the floppy version. To reproduce this, start a new game. Browse the menu and you will note that Straits of Damaron is in the list of possible destinations. Now and wait one or two minutes, then change to another view (eg. city view) and now Straits of Damaron has disappeared from the list (because the ship has disappeared).
Additionally, when talking to characters, their
final answer is displayed only very briefly due to the increased disk access speed; a button wait needs to be inserted.
TagsNo tags attached.
MachineUAE
CPU68020
CPUSpeed75
ChipSetAGA
GFXCardOther
ChipMem2 MB
FastMem128 MB
WorkbenchOS 3.9
KickROM40 - Kick 3.1
KickSoftNone
WHDLoad16.7
importedyes
Attached Files

-Relationships
+Relationships

-Notes

note ~0002454

JOTD (developer)

The whdload version uses a bad crack. Hence the "bug". This is a clever protection remainder.

note ~0002455

Minuous (reporter)

Confirmed. Thanks. Maybe a note could be added to the readme pointing this out.
  It still needs a fix for the 2nd issue (insufficient time to read characters' final responses) though.

note ~0002596

StingRay (developer)

Hi JOTD,

I had a look at Sinbad and coded a decrypter for the game which you can find below. This will fully decrypt the loader ("LoadSinbad") and bypass the disk protection too. Just LoadSeg the "LoadSinbad" file, then execute the decrypter, flush the cache and jmp into the game at offset $4f0. This should fix all the problems with the game that are caused by the wrong crack. I also had a look at the source and it should be redone as currently 90% of is consists of a (bad) crack patch. Source for the decrypter follows, you have to remove the "+60" because I worked with the executable i.e. I had to skip the hunk header. If you don't feel like working on this patch anymore let me know and I'll redo it.

; Sinbad and the Throne of the Falcon decrypter
; stingray, 03-Feb-2012
; early version of the Herndon HLS protection (1 pass)

START lea data+60+$2,a3
    lea data+60+$36,a5

.do move.l a3,a0
    move.l a5,a1
    move.w #$23c,d1
    move.w (a0)+,d0
    eor.w d0,(a1)+
    subq.w #1,d1 ; because of prefetch trick

    moveq #14-1,d7
.loop not.w (a0)+
    dbf d7,.loop
    lea data+60,a0

    move.l a3,a0
    move.w #"Si",(a0)
    subq.w #2,a0
.loop2 move.w (a0)+,d0
    eor.w d0,(a1)+
    dbf d1,.loop2

    move.l a3,a0
    subq.w #2,a0
    moveq #0,d0
    move.w #$1021,d6
    move.w #$fb,d5
    bsr.b .getkey

    move.w #$15b,d2
.loop3 move.w (a0)+,d1
    add.w d0,d1
    eor.w d1,(a0)
    dbf d2,.loop3

    move.l #$3ca,d0
    move.l d0,-(a7)

    move.l a3,a0
    subq.w #2,a0
    moveq #0,d0
    move.w #$1021,d6
    move.w #$265,d5
    bsr.b .getkey

    move.l (a7)+,d1
    and.w #$FF80,d1
    add.w d1,d0
    eor.w d1,d0
    lsr.w #8,d1
    eor.b d1,d0
    lea .reloc(pc),a2 ; reloc entries
    move.w d0,d2


    moveq #0,d0
.relocloop
    move.w (a2)+,d0
    move.w (a2)+,d3
    beq.b .exit
    lea data+60+$4f0(pc),a0
    add.l d0,a0
    add.l d0,a0
    move.l a3,a1
    subq.w #2,a1
    subq.w #2,d3
.loop4 move.w (a0)+,d0
    move.b (a1)+,d1
    eor.w d2,d0
    eor.b d1,d0
    eor.w d0,(a0)
    dbf d3,.loop4
    bra.b .relocloop


.getkey subq.w #1,d5
.keyloop
    move.w (a0)+,d1
    moveq #16-1,d4
.calckey
    moveq #0,d2
    lsl.w #1,d1
    roxr.w #1,d2
    eor.w d2,d0
    lsl.w #1,d0
    bcc.b .skip
    move.w d6,d3
    eor.w d3,d0
.skip dbf d4,.calckey
    dbf d5,.keyloop
.exit rts

.reloc DC.W $0012,$0015,$002C,$000A,$003B,$0018,$006C,$0006
    DC.W $0074,$0007,$007D,$000E,$0093,$0007,$009C,$0005
    DC.W $00A3,$0005,$00AA,$0005,$00B7,$001B,$00D7,$0006
    DC.W $0000,$0000

note ~0003646

Minuous (reporter)

Looks like JOTD won't be fixing it, so please go ahead StingRay...many thanks.

note ~0004775

StingRay (developer)

Patch redone, protection checks removed properly and 5 seconds delay added to final answers when talking to characters.
+Notes

-Issue History
Date Modified Username Field Change
2011-08-07 13:17 administrator New Issue
2011-08-07 13:17 administrator Status new => assigned
2011-08-07 13:17 administrator Assigned To => JOTD
2011-08-07 22:36 JOTD Note Added: 0002454
2011-08-07 22:37 JOTD Status assigned => acknowledged
2011-08-08 09:46 Minuous Note Added: 0002455
2012-02-03 16:42 StingRay Note Added: 0002596
2014-01-07 13:17 Minuous Note Added: 0003646
2014-01-08 06:53 JOTD Assigned To JOTD => StingRay
2014-01-08 06:53 JOTD Status acknowledged => assigned
2016-01-01 16:58 StingRay Note Added: 0004775
2016-01-01 16:58 StingRay Status assigned => resolved
2016-01-01 16:58 StingRay Resolution open => fixed
+Issue History