CP/M-68K simulator

tested on Fedora,

back to emulators page.

History

2021-11-15: I re-created this page on my self-hosted web server.

2017-06-08: it looks like the web site is gone now. Luckily I have the source files on my machine. Update: no, the web site is still there, it was just very slow today.

2014-04-22: user areas with files:

C>user
Enter User No: 0

C>dir
C: RELOC    68K : DUMP     68K : PIP      68K : STAT     68K : INIT     REL
C: LINK68   68K : SENDC68  68K : DDT      68K : DDT68000 68K : AS68     68K
C: CP68     68K : AS68INIT     : LIBF     A   : C068     68K : C168     68K
C: AR68     68K : CONFIG   68K : LO68     68K : MORE     68K : NM68     68K
C: LIBE     A   : SIZE68   68K : ASSERT   H   : CTYPE    H   : COPY     SUB
C: ERRNO    H   : OPTION   H   : OSIFERR  H   : PORTAB   H   : SETJMP   H  
C: CLIB         : CE       SUB : CLINKE   SUB : CLINKF   SUB : CLINK    SUB
C: AS68SYMB DAT : C        SUB : RELOC3   SUB : SGTTY    H   : SIGNAL   H  
C: STDIO    H   : STDINT   H   : ENDIAN   H   : ED       68K : S        O  
C: CC       REL : CC       68K : WHEREIS  68K : BBYE     68K : UEMACS   68K
C: F83      BIN : PUTBOOT  68K : BYE      68K : CPM      SYS : GREEN    68K
C: MAKE     REL : MAKE     68K : ARC      68K : EMACS    68K : F83      68K
C: SPLIT    68K

user 1:

1C>dir
C: ASSERT   H   : CTYPE    H   : ERRNO    H   : OPTION   H   : OSIFERR  H  
C: PORTAB   H   : SETJMP   H   : SGTTY    H   : SIGNAL   H   : STDIO    H  
C: ENDIAN   H   : STDINT   H   : BYTESWAP H   : BYTESWAP S   : BYTESWAP O

user 2: loader and regular bios etc.

C>user 2

2C>dir
C: PUTBOOT  REL : PUTBOOT  O   : SIMBIOS  S   : SIMBIOS  O   : CPMLIB      
C: CPMLDR   SYS : CPM      REL : CPM      SYS : LCPM     SUB : LCPM10   SUB
C: NEWCON   C   : NEWCON   DOC : MAKELDR  SUB : LDRBIOS  S   : RELCPM   SUB
C: LDRBIOS  O   : BYTESWAP O   : CPMLDR   REL : NEWCON   O   : BYE      S  
C: GREEN    S   : GREEN    O   : GREEN    REL : MAKECPM  SUB : BBYE     68K
C: LDRLIB       : PUTBOOT  68K : PUTBOOT  S

user 4: CP/M loader lib source

4C>dir
C: BDOSDEF  H   : BDOSIF   S   : BDOSMAIN C   : BDOSREAD C   : BIOSDEF  H  
C: CPMLDR   C   : DSKUTIL  C   : FILEIO   C   : IOSYS    C   : LDRIF    S  
C: M        SUB : PKTIO    H   : LDRLIB       : MAKE     SUB : BDOSIF   O  
C: LDRIF    O   : BDOSMAIN O   : BDOSREAD O   : CPMLDR   O   : DSKUTIL  O  
C: FILEIO   O   : IOSYS    O   : STDIO    H

user 6:

6C>dir
C: SPLIT    S   : SPLIT    REL : RELMOD   C   : RELMOD   REL

user 10: make

10C>dir
C: MAKE     C   : ATRIBUTE C   : CHDIR    C   : MAKE     68K : UTIL     C  
C: MOVMEM   O   : MAKE     BAK : MAKEFILE     : MAKELOAD S   : STRSAVE  O  
C: UTIL     O   : MOVMEM   C   : MAKE     O   : STRSAVE  C   : ATRIBUTE O  
C: MAKE     SUB : CHDIR    O

user 11: CC

11C>dir
C: CALLSYSA S   : CC       68K : CC       C   : CC       DOC : CCLINK      
C: CCLOAD   S   : CC       REL : PEXEC    C

user 12: uemacs V3.9 misc files

12C>dir
C: 00_INDEX TXT : AMIGA    RC  : AZMAP    CMD : BDATA    CMD : BLOCK    CMD
C: BOXMAC   CMD : CG197_0I 003 : COMP         : EMACS    HLP : EMACSRC     
C: EMACS    RC  : EMACS    TUT : EMACS    TXT : FINDCOM  CMD : FUNC     CMD
C: HEADER   CUG : INDENT   CMD : ME110    RC  : ME150    RC  : MENU1       
C: MENU     CMD : README       : SUBMIT   DSK : TRAND    CMD

user 13: uemacs V?

13C>dir
C: EMACS    68K : ANSI     C   : BASIC    C   : BIOS     H   : BIOS     S  
C: BUFFER   C   : DISPLAY  C   : ED       H   : FILE     C   : FILEIO   C  
C: LINE     C   : MAIN     C   : ME       TXT : PORTAB   H   : RANDOM   C  
C: REGION   C   : SEARCH   C   : SPAWN    C   : STDIO    H   : TCAP     C  
C: TERMIO   C   : VT52     C   : WINDOW   C   : WORD     C   : EMACS    REL
C: NOTES    TXT

user 14: uemacs V3.6.1

14C>dir
C: SPAWN    C   : ANSI     C   : BASIC    C   : BIND     C   : EBIND    H  
C: EDEF     H   : EFUNC    H   : EPATH    H   : ESTRUCT  H   : BUFFER   C  
C: DISPLAY  C   : UEMACS   68K : FILE     C   : FILEIO   C   : HP150    C  
C: LINE     C   : LOCK     C   : MAIN     C   : RANDOM   C   : REGION   C  
C: SEARCH   C   : BIOS     S   : TCAP     C   : TERMIO   C   : NOTES    TXT
C: VT52     C   : WORD     C   : WINDOW   C   : UEMACS   REL : BIOS     H

user 15: uemacs V3.9

15C>dir
C: ESTRUCT  H   : ANSI     O   : CRYPT    O   : BASIC    O   : BIND     O  
C: BUFFER   O   : DG10     O   : NOTES    TXT : 00_INDEX TXT : ANSI     C  
C: BADER    DOC : BASIC    C   : BIND     C   : BUFFER   C   : CG198_1I 008
C: CRYPT    C   : CUG      DOC : DG10     C   : DISPLAY  C   : DOLOCK   C  
C: EBIND    H   : EDEF     H   : EFUNC    H   : EMACS    C   : EMACS    KEY
C: EPATH    H   : EVAL     C   : EVAR     H   : EXEC     C   : FILE     C  
C: FILEIO   C   : HEADER   CUG : HP110    C   : HP150    C   : IBMPC    C  
C: INPUT    C   : ISEARCH  C   : LINE     C   : LOCK     C   : MAIN     C  
C: MAKEFILE     : MENU     C   : MISC         : RANDOM   C   : REGION   C  
C: SEARCH   C   : SPAWN    C   : ST520    C   : SUBMIT   DSK : TCAP     C  
C: TERMIO   C   : TIPC     C   : UNIX     MK  : VMSVT    C   : VT52     C  
C: WINDOW   C   : WORD     C   : Z309     C

is there a user 16?

15C>user 16
User # range is [0-15]

just kidding. stat is here:

C>stat

C: RW, FREE SPACE:    12,842K
M: RW, FREE SPACE:    16,256K

What else? whereis

C>whereis emacs

C>whereis emacs.*
EMACS.68K            0
EMACS.HLP            12
EMACS.RC             12
EMACS.TUT            12
EMACS.TXT            12
EMACS.68K            13
EMACS.REL            13
EMACS.C              15
EMACS.KEY            15

C>whereis stat.*
STAT.68K             0

that is useful.

2014-04-22: does it start?

tingo@kg-core1$ ./cpmsim
Read 32768 bytes from boot track


CP/M-68K(tm) Version 1.2  03/20/84
Copyright (c) 1984 Digital Research, Inc.

CP/M-68K BIOS Version 1.0
Simulated system of April 2014
TPA =16251  K

C>AUTOST.SUB
AUTOST.SUB?

it does. To exit emulator, use the bbye command:

C>bbye
CP/M-68K terminating normally

Final PC=00008106

The bye command does something else:

C>bye
CP/M-68K BIOS Version 1.0
Simulated system of April 2014
TPA =16251  K

C>AUTOST.SUB


Exception $0B at user address $0000041A.  Aborted.

Funny.

2014-04-22: I read about this emulator on the comp.os.cpm newsgroup a while ago, today I decided to see if I could get it to compile under FreeBSD.

tingo@kg-core1$ uname -a
FreeBSD kg-core1.kg4.no 8.4-STABLE FreeBSD 8.4-STABLE #0 r253646: Thu Jul 25 10:12:31 UTC 2013     root@kg-core1.kg4.no:/usr/obj/usr/src/sys/GENERIC  amd64

create a place to test it:

tingo@kg-core1$ pwd
/home/tingo/work/cpm68k

unzip Musashi sources:

tingo@kg-core1$ unzip  ~/dl/musashi331.zip
Archive:  /home/tingo/dl/musashi331.zip
 extracting: example.zip 
 extracting: history.txt 
 extracting: m68k.h 
 extracting: m68k_in.c 
 extracting: m68kconf.h 
 extracting: m68kcpu.c 
 extracting: m68kcpu.h 
 extracting: m68kdasm.c 
 extracting: m68kmake.c 
 extracting: readme.txt

check format:

tingo@kg-core1$ file *
example.zip: Zip archive data, at least v2.0 to extract
history.txt: ASCII English text, with CRLF line terminators
m68k.h:      ASCII C program text, with CRLF line terminators
m68k_in.c:   ASCII C program text, with CRLF line terminators
m68kconf.h:  ASCII C program text, with CRLF line terminators
m68kcpu.c:   ASCII C program text, with CRLF line terminators
m68kcpu.h:   ASCII C program text, with CRLF line terminators
m68kdasm.c:  ASCII C program text, with CRLF line terminators
m68kmake.c:  ASCII C program text, with CRLF line terminators
readme.txt:  ASCII English text, with CRLF line terminators

run through dos2unix:

tingo@kg-core1$ dos2unix *

check again:

tingo@kg-core1$ file *
example.zip: Zip archive data, at least v2.0 to extract
history.txt: ASCII English text
m68k.h:      ASCII C program text
m68k_in.c:   ASCII C program text
m68kconf.h:  ASCII C program text
m68kcpu.c:   ASCII C program text
m68kcpu.h:   ASCII C program text
m68kdasm.c:  ASCII C program text
m68kmake.c:  ASCII C program text
readme.txt:  ASCII English text

Next, move one file out of the way:

tingo@kg-core1$ mv m68kconf.h m68kconf.h_org

then unzip the cpmsim sources:

tingo@kg-core1$ unzip  ~/dl/cpmsim.zip
Archive:  /home/tingo/dl/cpmsim.zip
 extracting: cpmsim.c 
 extracting: simbios.s 
 extracting: simbios.bin 
 extracting: cpm400.bin 
 extracting: diskc.cpm.fs 
 extracting: makefile 
 extracting: sim.h 
 extracting: m68kconf.h 
 extracting: cpmsim

I also had to run dos2unix on the makefile:

tingo@kg-core1$ dos2unix makefile

Ok, try to compile:

tingo@kg-core1$ make
mkdir obj
gcc -Wall -O2 -c -Iobj -I. cpmsim.c -o obj/sim.o
cpmsim.c: In function 'disk_write':
cpmsim.c:425: warning: implicit declaration of function 'TEMP_FAILURE_RETRY'
gcc -Wall m68kmake.c -o obj/m68kmake
obj/m68kmake obj m68k_in.c

        Musashi v3.3 68000, 68010, 68EC020, 68020 emulator
        Copyright 1998-2000 Karl Stenerud (karl@mame.net)

Generated 1962 opcode handlers from 503 primitives
gcc -Wall -O2 -c -Iobj -I. m68kcpu.c -o obj/m68kcpu.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kops.c -o obj/m68kops.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopac.c -o obj/m68kopac.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopdm.c -o obj/m68kopdm.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopnz.c -o obj/m68kopnz.o
gcc -Wall -O2 -c -Iobj -I. m68kdasm.c
gcc -Wall obj/sim.o obj/m68kcpu.o obj/m68kops.o obj/m68kopac.o obj/m68kopdm.o obj/m68kopnz.o m68kdasm.o -o cpmsim
obj/sim.o(.text+0x8cf): In function `disk_write':
: undefined reference to `TEMP_FAILURE_RETRY'
*** Error code 1

Stop in /zs/tingo/work/cpm68k.

Well, didn't work straight through. Ah. I found this on the newsgroup: NOTE: OS/X users will need this added to cpmsim.c:

#ifdef __APPLE__
#define TEMP_FAILURE_RETRY(expr) \
    ({ long int _res; \
        do _res = (long int) (expr); \
        while (_res == -1L && errno == EINTR); \
        _res; })
#endif

I changed __APPLE__ into __FreeBSD__ and added it to cpmsim.c and did a rebuild (note: the make clean target doesn't really remove the obj directory):

tingo@kg-core1$ make
mkdir obj
gcc -Wall -O2 -c -Iobj -I. cpmsim.c -o obj/sim.o
gcc -Wall m68kmake.c -o obj/m68kmake
obj/m68kmake obj m68k_in.c

        Musashi v3.3 68000, 68010, 68EC020, 68020 emulator
        Copyright 1998-2000 Karl Stenerud (karl@mame.net)

Generated 1962 opcode handlers from 503 primitives
gcc -Wall -O2 -c -Iobj -I. m68kcpu.c -o obj/m68kcpu.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kops.c -o obj/m68kops.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopac.c -o obj/m68kopac.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopdm.c -o obj/m68kopdm.o
gcc -Wall -O2 -c -Iobj -I. obj/m68kopnz.c -o obj/m68kopnz.o
gcc -Wall obj/sim.o obj/m68kcpu.o obj/m68kops.o obj/m68kopac.o obj/m68kopdm.o obj/m68kopnz.o m68kdasm.o -o cpmsim

compiled.