Mega Typhoon WHDLoad

[ransom1122]

A1200 - With Cycle Exact it won't work. Ive left it for way longer then 10 seconds.

Ive Warped Speed in WinUAE and seen if it takes over 5 mins or longer but it still stays on a black screen.

[modrobert]

Originally Posted by ransom1122

A1200 - With Cycle Exact it won't work. Ive left it for way longer then 10 seconds.

Ive Warped Speed in WinUAE and seen if it takes over 5 mins or longer but it still stays on a black screen.

Just curious, can you try the NOCACHE icon tooltype when using "cycle exact" and see if it works then?

[ransom1122]

Originally Posted by modrobert

Just curious, can you try the NOCACHE icon tooltype when using "cycle exact" and see if it works then?

No change

[modrobert]

Originally Posted by ransom1122

No change

OK, I assume there is some other problem with the WinUAE emulator or config settings when enabling "cycle exact" since this works on real hardware.

[Toni Wilen]

Does it really poll VERTB bit in INTREQR with vertical blank interrupt enabled in INTENA? It is never a good idea, depending on HW/CPU model/caches/etc, interrupt handler may almost always "win" and poll almost never sees the bit set or it can also cause long random delay before poll sees VERTB bit set.

[modrobert]

Originally Posted by Toni Wilen

Does it really poll VERTB bit in INTREQR with vertical blank interrupt enabled in INTENA? It is never a good idea, depending on HW/CPU model/caches/etc, interrupt handler may almost always "win" and poll almost never sees the bit set or it can also cause long random delay before poll sees VERTB bit set.

Yes, the game runs the code I pasted in the "CONTINUE ?" screen (not in any other part of the game AFAIK), I tried replacing it with NOPs and only did the RTS for test which made the 10 second timeout finish in less than a second, so it's relying on it for the delay count (and top of screen).

I'm not sure if it turns off the vblank interrupt somewhere else in the code for the "CONTINUE ?" screen, but suspect it does which interferes with the vbl_hook code handling the CD32 joypad protocol in slave not being executed fully (or triggered too fast repeatedly, just speculating). HRTmon v2.38 (WHDLoad version) hotkey button "\" fails during this countdown screen as well, had to enter before while still in game and then trace until certain address, it's the only place where it fails in this game, so something about interrupts.

[DanyPPC]

I have a standard JIT/040 OS3.9 config. on WinUAE 5.3.0, also WHDLoad.prefs as follow:

;
; global configuration file for WHDLoad
; searched as "S:WHDLoad.prefs"
;
; CLI-Arguments and ToolTypes will overwrite these!
;

;ButtonWait ;wait for button pressed (Slave must support this)
;ChipNoCache ;disable cachebility of Chip-Memory
;ConfigDelay=400 ;wait to select options in splash window (1/50 seconds)
;CoreDumpPath=T: ;path to store coredump files
;DebugKey=$5b ;rawkey code to quit with coredump (debug)
;ExecutePostDisk=uae-configuration cycle_exact true cachesize 0
;ExecutePostDisk=uae-configuration cpu_speed real
ExecutePostDisk=uae-configuration cycle_exact true cpu_speed real
ExecuteCleanup=uae-configuration cycle_exact false cpu_speed max cachesize 16384
;ExecuteStartup=S:WHDLoad-Startup ;command to execute on WHDLoad startup
;ExecutePostDisk=S:WHDLoad-PostDisk ;command to execute after accessing disk
;ExecutePreDisk=S:WHDLoad-PreDisk ;command to execute before accessing disk
;ExecuteCleanup=S:WHDLoad-Cleanup ;command to execute on WHDLoad exit
;Expert ;enable expert mode
;FreezeKey=$5d ;rawkey code to enter HrtMon/TK
;FullChip ;save/restore complete chip memory
;LogBuffer=$40000 ;buffer size for logging facility
;MMU ;use MMU (on 68030)
;NoAutoVec ;ignore unwanted autovector interrupts
;NoFilter ;disable audio filter
;NoFlushMem ;do not flush memory
;NoMemReverse ;do not allocate memory reverse
;NoNetwork ;do not connect to the internet
;NoWriteCache ;disable the disk write cache
;NoWriteInfo ;do not write .info files
;NTSC ;force NTSC video mode
;PAL ;force PAL video mode
;Preload ;try to buffer much data files on startup
;Proxy=proxyhost:3128 ;use this HTTP-proxy, [userassword@]hostname[ort]
;QuitKey=$5a ;rawkey code to quit
;ReadDelay=150 ;wait after reading from disk (1/50 seconds)
;RecallAdr=$4f000000 ;memory address to store recall data
;RestartKey=$5c ;rawkey code to restart
;SavePath=SYS:WHDSaves ;base directory for all saves
;ShowRegs=SYS:Utilities/MuchMore W WL=80 WT=80 WW=582 WH=700 ;command for Show Regs
;SplashDelay=200 ;time to display splash window (1/50 seconds)
;WriteDelay=150 ;wait after saving something to disk (1/50 seconds)

So the system goes to cycleexact and real cpu speed when I launch a WHDLoad game and back to JIT max speed at exit.

MegaTyphoon fix2 works as on my real Amiga 1200/030