sorry if this have been in another thread i cant find it
i have been trying to play some old dos games most work but now im getting this error message

CPU:GRP5:Illegal Call 7

dosbox.conf

[sdl]
# fullscreen -- Start dosbox directly in fullscreen.
# fulldouble -- Use double buffering in fullscreen.
# fullfixed -- Don't resize the screen when in fullscreen.
# fullwidth/height -- What resolution to use for fullscreen, use together with fullfixed.
# output -- What to use for output: surface,overlay,opengl,openglnb.
# hwscale -- Extra scaling of window if the output device supports hardware scaling.
# autolock -- Mouse will automatically lock, if you click on the screen.
# sensitiviy -- Mouse sensitivity.
# waitonerror -- Wait before closing the console if dosbox has an error.

fullscreen=false
fulldouble=false
fullfixed=false
fullwidth=0
fullheight=0
output=surface
hwscale=1.00
autolock=true
sensitivity=100
waitonerror=true

[dosbox]
# language -- Select another language file.
# memsize -- Amount of memory dosbox has in megabytes.
# machine -- The type of machine tries to emulate:auto,hercules,cga,tandy,vga.
# Try a specific type if your game has problems with auto.

language=
machine=auto
memsize=32

[render]
# frameskip -- How many frames dosbox skips before drawing one.
# snapdir -- Directory where screenshots get saved.
# aspect -- Do aspect correction.
# scaler -- Scaler used to enlarge/enhance low resolution modes.
# Supported are none,normal2x,advmame2x

frameskip=0
snapdir=snaps
aspect=false
scaler=normal2x

[cpu]
# core -- CPU Core used in emulation: normal,full,dynamic.
# cycles -- Amount of instructions dosbox tries to emulate each millisecond.
# Setting this higher than your machine can handle is bad!
# cycleup -- Amount of cycles to increase/decrease with keycombo.
# cycledown Setting it lower than 100 will be a percentage.

core=normal
cycles=2500
cycleup=500
cycledown=20

[mixer]
# nosound -- Enable silent mode, sound is still emulated though.
# rate -- Mixer sample rate, setting any devices higher than this will
# probably lower their sound quality.
# blocksize -- Mixer block size, larger blocks might help sound stuttering
# but sound will also be more lagged.
# wavedir -- Directory where saved sound output goes when you use the
# sound record key-combination, check README file.

nosound=false
rate=22050
blocksize=2048
wavedir=waves

[midi]
# mpu401 -- Enable MPU-401 Emulation.
# device -- Device that will receive the MIDI data from MPU-401.
# This can be default,alsa,oss,win32,coreaudio,none.
# config -- Special configuration options for the device.

mpu401=true
device=default
config=

[sblaster]
# sblaster -- Enable the soundblaster emulation.
# base,irq,dma -- The IO/IRQ/DMA address of the soundblaster.
# sbrate -- Sample rate of soundblaster emulation.
# adlib -- Enable the adlib emulation.
# adlibrate -- Sample rate of adlib emulation.
# cms -- Enable the Creative Music System/Gameblaster emulation.
# Enabling both the adlib and cms might give conflicts!
# cmsrate -- Sample rate of cms emulation.

sblaster=true
base=220
irq=7
dma=1
sbrate=22050
adlib=true
adlibrate=22050
adlibmode=adlib
cms=false
cmsrate=22050

[gus]
# gus -- Enable the Gravis Ultrasound emulation.
# base,irq1,irq2,dma1,dma2 -- The IO/IRQ/DMA addresses of the
# Gravis Ultrasound. (Same IRQ's and DMA's are OK.)
# rate -- Sample rate of Ultrasound emulation.
# ultradir -- Path to Ultrasound directory. In this directory
# there should be a MIDI directory that contains
# the patch files for GUS playback. Patch sets used
# with Timidity should work fine.

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

[speaker]
# pcspeaker -- Enable PC-Speaker emulation.
# pcrate -- Sample rate of the PC-Speaker sound generation.
# tandy -- Enable Tandy 3-Voice emulation.
# tandyrate -- Sample rate of the Tandy 3-Voice generation.
# disney -- Enable Disney Sound Source emulation.

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

[bios]
# Nothing to setup yet!

[dos]
# xms -- Enable XMS support.
# ems -- Enable EMS support.

xms=true
ems=true

[modem]
# modem -- Enable virtual modem emulation.
# comport -- COM Port modem is connected to.
# listenport -- TCP Port the momdem listens on for incoming connections.

modem=false
comport=2
listenport=23

[autoexec]
# Lines in this section will be run at startup.

mount c c:/
#mount e e:/ -t cdrom -usecd 0
set temp=c:\temp
c:

help pls