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Latest version: 0.74-3

 
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Game details
JetFighter - Velocity (1990)
Tested By: Winter

runnable  -  playable  -  supported
74% (supported)
  DOSBox version: 0.73 (supported)

runnable  -  playable  -  supported
0% supported
  DOSBox version: 0.65 (broken)

runnable  -  playable  -  supported
0% supported
  DOSBox version: 0.63 (broken)


real hardware 486 (2022-02-05 22:39) zodiac
To get this game to run on a real 486 DX2, I have to use moslo. The divide by zero error is related to speed of the processor. So DosBox is emulating this correctly with equivalent cycles.
Divide by zero (2014-09-08 06:52) opcode
You still having divide by zero error on startup?
Jetfighter Disk (2012-04-19 19:55) BJSloth
I found my original Jetfighter! disk. The files all seem to be there, but when I try to run in DosBox 0.74 I get error 2003: Integer divide by zero Error
Any hints out there?
Jetfighter finally works!!! (2010-01-13 00:36) opcode
I have confirmed this by editing my ~/.dosbox/dosbox-0.73.conf file and changing cputype from "auto" to "386_prefetch" and it works perfectly.

I am happy this old game works now.
it works in DOSBox 0.73 (2010-01-09 16:19) Petersilientroll
cputype=386_prefetch

:-D
Prefetch queue (2006-08-16 18:24) dsimcha
This game actually works with an unofficial DOSBox build that supports the buggy prefetch queue from early x86 CPUs. I have verified this personally. See http://vogons.zetafleet.com/viewtopic.php?t=12963
Clock Doubled CPUs? (2006-07-20 21:40) dsimcha
I remember reading in the manual for this game back in the day that it will not run on some 486 DX-2 CPUs. I can't even get it to work under pure MS-DOS 5 on any CPU I've had since a 386SX. Could it be that this game makes use of some weird "feature" only found on CPUs that have clock speeds equal to the system bus speed? If so, could DOSBox somehow emulate this?
Game not even runnable (2006-05-22 02:16) mad.and.insane
now it exited telling me in stdout.txt this:
Exit to error: CPU:GRP5:Illegal Call 7
Game not even runnable (2006-05-22 02:12) mad.and.insane
the title screen is not part of the game, starting it as "jf.exe B" will show that it WONT BUDGE at all.
Note: (2005-02-28 23:53) Winter
Doesn't respond after title screen.


Game directory (browsing from J)
Game: Year:   Version:   Status: runnable - playable - supported
J-Bird 1983   0.74-3   supported 100% (supported)
Jabato 1989   0.73   supported 100% (supported)
Jack Flash - Mutiny of the Things 1995   0.72   supported 100% (supported)
Jack in the Dark 1993   0.74-3   supported 90% (supported)
Jack Nicklaus Golf Sign. Edition 1992   0.58   supported 80% (supported)
Jack Nicklaus Unlimited Golf 1990   0.73   supported 90% (supported)
Jack Nicklaus' Greatest 18 Holes... 1988   0.70   supported 95% (supported)
Jack Orlando 1996   0.73   supported 100% (supported)
Jack the Ripper 1994   0.70   supported 100% (supported)
Jagged Alliance 1994   0.73   supported 100% (supported)
Jagged Alliance - deadly games 1996   0.63   supported 100% (supported)
Jahangir Khan's WC Squash 1991   0.73   supported 100% (supported)
Jai Alai 1991   0.73   supported 100% (supported)
James Bond 007 - A View to a Kill 1985   0.74-3   supported 100% (supported)
James Pond 2 1993   0.74-3   supported 100% (supported)
Jammit 1994   0.73   supported 80% (supported)
Janitor Joe 1985   0.61   supported 80% (supported)
Javelin 2000 1999   0.61   supported 95% (supported)
Jaws 1989   0.61   supported 80% (supported)
Jazz Jack Rabbit Xmas 1994 1994   0.65   supported 95% (supported)
Jazz Jack Rabbit Xmas 1995 1995   0.63   supported 95% (supported)
Jazz Jackrabbit 1994   0.74-3   supported 100% (supported)
Jazz Jackrabbit Holiday Hare 94/95 1995   0.74-3   supported 100% (supported)
JBC Casino 1998   0.74-3   supported 100% (supported)
JBM 6.0 1996   0.58   supported 80% (supported)
JCGS (神示祿) 1995   0.63   supported 100% (supported)
Jeopardy! 1987   0.61   supported 80% (supported)
Jeopardy! 1988   0.61   supported 100% (supported)
Jeopardy! Junior Edition 1989   0.61   supported 80% (supported)
Jeopardy! Second Edition 1990   0.73   supported 80% (supported)
Jesus of Nazareth 2005   0.74-3   supported 100% (supported)
Jet 2.0 1985   0.73   supported 80% (supported)
Jet Set Willy 1999   0.74-3   supported 100% (supported)
Jet Strike 1995   0.70   supported 100% (supported)
JetFighter 1990   0.73   supported 74% (supported)
JetFighter 3 1997   0.73   supported 100% (supported)
Jetfighter II 1990   0.74-3   supported 100% (supported)
Jetpack 1993   0.73   supported 100% (supported)
Jetpack v1.5 1993   0.63   supported 100% (supported)
Jetpack(Prototype) 1993   0.63   supported 100% (supported)
Jill of the Jungle 1992   0.74-3   supported 100% (supported)
Jill of the Jungle 2 1992   0.73   supported 90% (supported)
Jill of the Jungle 3 1992   0.70   supported 90% (supported)
Jim Power 1993   0.73   supported 90% (supported)
Jimmy White's Whirlwind Snooker 1991   0.61   supported 80% (supported)
Jinxter 1987   0.65   supported 100% (supported)
Jo Guest in The Milk Round 1993   0.74-3   supported 98% (supported)
Joan of Arc 1989   0.61   supported 80% (supported)
Joe Montana Football 1990   0.74-3   supported 100% (supported)
Joe Montana Football (Floppy Disk) 1990   0.74-3   supported 100% (supported)
John Elway's Quarterback 1987   0.61   supported 80% (supported)
John Madden Football 1989   0.61   supported 80% (supported)
Johnny Bazookatone 1997   0.74-3   broken  
Jonathan 1993   0.74-3   supported 100% (supported)
Jones in the Fast Lane 1990   0.60   supported 90% (supported)
Jones In The Fast Lane (CD Version) 1990   0.63   supported 64% (supported)
Journey 1989   0.61   supported 80% (supported)
Journey to the Center of the Earth 1990   0.74-3   supported 90% (supported)
Joust 1983   0.70   supported 95% (supported)
Jr. Pac-Man 1988   0.72   supported 95% (supported)
Judge Dredd 1997   0.73   supported 100% (supported)
Judge Dredd Pinball 1998   0.72   supported 100% (supported)
Jump 'n Bump 1998   0.70   supported 95% (supported)
Jumpjet 1.07 1990   0.72   supported 100% (supported)
Jumpman 1983   0.61   supported 100% (supported)
Jumpman Lives! 1991   0.74-3   supported 100% (supported)
Jungle Hunt 1984   0.74-3   supported 85% (supported)
Jungle Strike 1995   0.72   supported 100% (supported)
Jurassic Park 1992   0.74-3   supported 100% (supported)
Jurassic War 1997   0.72   supported 80% (supported)

Compatibility statistics (3930 games in database)
Version: Games broken: Games runnable: Games playable: Games supported:
DOSBox 0.74-3 (1256) 16 (1.27%) 34 (2.71%) 48 (3.82%) 1158 (92.20%)
DOSBox 0.73 (644) 16 (2.48%) 23 (3.57%) 17 (2.64%) 588 (91.30%)
DOSBox 0.72 (722) 45 (6.23%) 24 (3.32%) 31 (4.29%) 622 (86.15%)
DOSBox 0.71 (164) 29 (17.68%) 12 (7.32%) 8 (4.88%) 115 (70.12%)
DOSBox 0.70 (952) 23 (2.42%) 17 (1.79%) 29 (3.05%) 883 (92.75%)
DOSBox 0.65 (727) 39 (5.36%) 30 (4.13%) 41 (5.64%) 617 (84.87%)
DOSBox 0.63 (918) 76 (8.28%) 45 (4.90%) 46 (5.01%) 751 (81.81%)
DOSBox 0.62 (395) 56 (14.18%) 24 (6.08%) 27 (6.84%) 288 (72.91%)
DOSBox 0.61 (998) 87 (8.72%) 59 (5.91%) 68 (6.81%) 784 (78.56%)
DOSBox 0.60 (774) 108 (13.95%) 73 (9.43%) 72 (9.30%) 521 (67.31%)
DOSBox 0.58 (1149) 266 (23.15%) 15 (1.31%) 20 (1.74%) 848 (73.80%)






 
 
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