I've recently upgraded DOSBox to the latest version (v0.70) and have wanted to replay Sword of the Samurai. However, everytime I try to play it with core set to dynamic, DOSBox exits, the Windows CLI displaying the line "DynCore:illegal option in opcode 0xff". No problem, I presume, and try running it with core set to normal. However, this time DOSBox exits with the error "CPU:GRP5:Illegal Call 7". Does anyone have anyone have any ideas as to why this is happening?

Odd. This game works for me in 0.70 as well as with 0.65. Have you downloaded it from here? Have you selected the right hardware options at the start? Did it work with previous versions for you?

Yes, I downloaded it from here some time ago, and ran it perfectly under 0.65. As for hardware options, it doesn't even get to that. I type in the filename to start the game, press enter, and it immediately crashes and displayes the error. I've attached my config file if that gives you any insight into why this is happening.

*EDIT* Or not, damn file type restriction...

[sdl]

fullscreen=true
fulldouble=false
fullresolution=800x600
windowresolution=original
output=surface
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper.txt
usescancodes=true

[dosbox]

language=
machine=vga
captures=capture
memsize=32

[render]

frameskip=0
aspect=false
scaler=normal2x

[cpu]

core=dynamic
cycles=max
cycleup=1000
cycledown=1000

[mixer]

nosound=false
rate=22050
blocksize=2048
prebuffer=10

[midi]

mpu401=intelligent
device=default
config=

[sblaster]

sbtype=sb16
sbbase=220
irq=7
dma=1
hdma=5
mixer=true
oplmode=auto
oplrate=22050

[gus]

gus=true
gusrate=22050
gusbase=240
irq1=5
irq2=5
dma1=3
dma2=3
ultradir=C:\ULTRASND

[speaker]

pcspeaker=true
pcrate=22050
tandy=auto
tandyrate=22050
disney=true

[joystick]

joysticktype=auto
timed=true
autofire=false
swap34=false
buttonwrap=true

[serial]

serial1=dummy
serial2=dummy
serial3=disabled
serial4=disabled

[dos]

xms=true
ems=true
umb=true
keyboardlayout=none

[ipx]

ipx=false

[autoexec]

mount C D:\DOS\CDrive
mount D E:\ -t cdrom
C:
CLS

please set the [cpu] section back to it's defaults.

that setting might be too fast for that game

I've set it to normal, 500 cycles, 100 cycles up and down, still no luck.

Too much memory? The default is 16 MB.

As for the cycles 500 might be too little now, but anyway I don't think that's causing the crashes. I really don't know, it's very unusual.

If anything, the cycles should just make the game slow down, right?

In any case, memory set to 16, still says the same thing, even if I go further and put it down to 8. This is really getting me puzzled...

Do other games work fine with your DOSBox 0.70, is this the only one? Because since DB makes the games run in the same virtual environment independently of the real computer you run DB in, this is really strange. It would make more sense that your DB installation wasn't right and other games didn't work either.

EDIT: Better just ask in the DB forums, you'll get specialist help:

http://vogons.zetafleet.com/index.php?c=7

how do you save the game?

As in your other post the solution to this is Alt S. That should save your game.