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Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 86/CONCURRENT/CCPM-86 2.0 SOURCE/genccpm/genccpm.c
Sepp J Morris 31738079c4 Upload 
Digital Research
2020-11-06 18:50:37 +01:00

3256 lines
104 KiB
C
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/**************************************************************************
* G E N C C P M - generates an operating system
*
* Written by Bill Fitler Nov. 1982
*
* GENCCPM is designed to edit the system image for the operating system
* and construct an initialized, loadable image for execution.
* GENCCPM was originally designed for Concurrent CP/M-86 v2.0, and was
* modelled after the old GENSYS.
*
* Revision history:
* 23 Feb 83 whf: add patch module
* 25 Jan 83 whf: combine all modules for easier maintenance
* 20 Jan 83 whf: handles SYSDAT overflow
* 19 Nov 82 whf: added BDOS buffering generation.
*
************************************************************************/
/*******************************/
/* for serialization purposes: */
char *copynote = "COPYRIGHT (C) 1983, DIGITAL RESEARCH 654321 $";
/****************************************************/
/* up front for patching: Note the internal EOS (0) */
char *clearx = "\033H\033E\0\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
/****************************************************/
/****** include files ********/
#define MAINMODULE
#define CCPM
#include <genccpm.h>
/*****************************/
#ifdef CCPM
BYTE *edsysver = "GENCCPM v3.0 [3/7/83]\n";
#endif
#ifdef MPM
BYTE *edsysver = "GENMPM vX.X [??/??/??]\n";
#endif
BYTE mainmtitle[50] = ""; /* room for title of main menu */
MENU *mainmenu = NULLPTRI; /* pointers to main menu items */
MENU *xiosmenu = NULLPTRI; /* pointers to XIOS menu items */
MENU *memmenu=NULLPTRI; /* memory management menu */
MENU *syspmenu=NULLPTRI; /* system parameters menu */
MENU *rspmenu=NULLPTRI; /* rsp edit menu */
/**************************************************************************/
/* main module
/**************************************************************************/
main(ac,av)
WORD ac;
BYTE **av;
{
BYTE cmds[CMDSLEN]; /* input area of commands */
BOOLEAN sysvalid(); /* is the system data valid? */
fprintf(stderr,edsysver);
if( isatty(1) ) /* standard output to a tty? */
clearit = clearx; /* yes, do clear screens */
else clearit = ""; /* no, don't do clear screens */
init_sysdat(); /* initialize system data */
init_edsys(); /* initialize menus */
if( ac>1 ) { /* if any command line arguments */
copyargs(ac-1,av+1,cmds); /* simplify cmd parser */
verbose = TRUE; /* turn on wordiness by default */
domenu(cmds,mainmenu); /* do what they've asked for */
}
FOREVER { /* work with user for a while */
if(doit) { /* does user want to quit? */
if( sysvalid() ) /* has evrything been defined? */
break; /* let them if everything okay */
press_return(); /* let them view the message(s) */
}
printf("%s",clearit); /* clear the screen */
prtmenu(mainmtitle,mainmenu); /* display user options */
printf(PROMPT); /* prompt user */
if( gets(cmds)!=cmds ){ /* on end of file */
close(0); /* standard input */
open("CON:",AREAD); /* reopen to the console */
close(1); /* standard output: assume redirection */
open("CON:",AWRITE);/* reopen to console */
clearit = clearx; /* do the clear screen routine */
continue; /* force user to input blank line */
}
if( *cmds==NULL ) /* blank line of input */
continue; /* don't bother with blank lines here */
domenu(cmds,mainmenu); /* do what they've asked for */
} /*****************************/
/* we've got user input */
make_sysfile(); /* construct system image/use old one*/
gentables(); /* generate the tables */
fixups(); /* odds and ends on the system image */
wrapup(); /* close files, etc. */
}
/* copyargs: copies args to cbuf for uniform parsing */
copyargs(ac,av,cbuf)
WORD ac;
BYTE **av;
BYTE *cbuf;
{
for( *cbuf=NULL; ac>0; --ac, ++av ) {
strcat(cbuf,*av);
strcat(cbuf," ");
}
}
/**************************************************************************/
/* init_sysdat: reads SYStem DATa info from:
/* 1. SYSFILE, if it exists
/* 2. SYSMOD, o.w. if this is the case, it also checks
/* for existence of all other required modules
/**************************************************************************/
VOID init_sysdat()
{
REG WORD sf; /* file descriptor for SysData read */
LONG grpseek(); /* seek the data group */
WORD goffs; /* loc of group */
EXTERN DLIST *rsps, *dirsearch(); /* directory search fn */
BYTE *addmem(); /* for initializing memory */
BYTE *chkmodules(), *xlist[80]; /* list of missing modules */
printf("GENerate SYStem image for %s\n",VERLABEL);
init_sds(sdat_area); /* initialize program ptrs */
/***************************************************/
if(chkmodules(xlist)==NULLPTR && (sf=BROPEN(SYSMOD)) > 0 ) {
printf("Constructing new %s file\n",SYSFILE);
/*** procedureize this? for cmd use */
dogensys=TRUE; /* no SYSFILE, read from modules */
if(grpseek(sf,GTYPDATA)<0) /* seek start of data group */
CRASH("no data group in SYSDAT module\n");
read(sf,sdat_area,SDLEN); /* read in the data group */
/**** may have to init arbitrarily some MAX values here ****/
xtrapds = *sd_pul; /* default number of extra process descriptors */
totqcbs = *sd_qul; /* default number of qcbs */
totopen = 0x40; /* arbitrary total open files & locked recs */
qbuflen = *sd_qmalen; /* init'ed to bytes */
rsps = dirsearch("*.RSP"); /* init RSP list */
addmem("400,6000,400"); /* start out with this memory allocation */
close(sf); /* don't need it for a while */
#ifdef CCPM
sf=BROPEN(XIOSMOD); /* let's go read the XIOS info */
if( grpseek(sf,GTYPDATA) <= 0 ) /* if there is not a data group */
grpseek(sf,GTYPCODE); /* use the code group instead */
goffs = lseek( sf,0L,1 ); /* where did we end up? */
initxios_info(sf,goffs); /* grab info from there */
close(sf); /* don't need it for a while */
#endif
} else if( FALSE && /****** temporarily disable this option!!! ***/
(sf=BROPEN(SYSFILE)) >= 0 ){ /* does SYSFILE exist? *******/
printf("Editting %s file\n",SYSFILE);
dogensys = FALSE; /* tell them not to gen a new system */
grpseek(sf,GTYPDATA); /* get data module in OS */
read(sf,sdat_area,SDLEN); /* read in the info */
/**** may have to trace down some lists for MAX values ****/
close(sf); /* don't need it for a while */
} else { /***************************************************/
if( xlist == NULLPTR ) {
fprintf(stderr,"Can't find %s module\n",SYSMOD);
} else {
fprintf(stderr,"Can't find these modules:\n%s\n",xlist);
}
fprintf(stderr,"Please find the correct modules\n");
exit(1);
} /**** end module check ****/
if( VERSION != *sd_mpmvn ){ /* a little version number checking */
USERR("%s works on OS version %x\n",edsysver,VERSION);
USERR("Sys Data area found was from OS version %x\n",*sd_mpmvn);
USERR("Please find correct .SYS or %s files\n",MODEXT);
exit(1);
}
}
/**************************************************************************/
#define RDAC 4 /* Read Access mode for 'access' */
BYTE *
chkmodules(badbuf) /* place to put missing module names */
BYTE *badbuf;
{
*badbuf=0;
if( access(SYSMOD,RDAC) ) {strcat(badbuf,SYSMOD);strcat(badbuf," ");}
if( access(SUPMOD,RDAC) ) {strcat(badbuf,SUPMOD);strcat(badbuf," ");}
if( access(RTMMOD,RDAC) ) {strcat(badbuf,RTMMOD);strcat(badbuf," ");}
if( access(MEMMOD,RDAC) ) {strcat(badbuf,MEMMOD);strcat(badbuf," ");}
if( access(CIOMOD,RDAC) ) {strcat(badbuf,CIOMOD);strcat(badbuf," ");}
if( access(BDOSMOD,RDAC) ) {strcat(badbuf,BDOSMOD);strcat(badbuf," ");}
#ifdef NET
if( access(NETMOD,RDAC) ) {strcat(badbuf,NETMOD);strcat(badbuf," ");}
#endif
if( access(XIOSMOD,RDAC) ) {strcat(badbuf,XIOSMOD);strcat(badbuf," ");}
if( *badbuf )
return badbuf;
else return NULLPTR;
}
/**************************************************************************/
/* init_edsys: initializes program variables and menus
/**************************************************************************/
VOID init_edsys()
{
MENU *m; /* mainmenu pointer */
MENU *x; /* xiosmenu pointer */
MENU *me; /* memory partitions menu */
MENU *s; /* sys params menu */
MENU *r; /* rsp menu */
MENU *bldmenu(); /* func to build the menu list */
BYTE *drvmsg; /* destination drive message */
BYTE *delmsg; /* delete old SYSFILE msg */
BYTE getdrive(); /* get default drive */
BYTE *help(); /* func to help user */
BYTE *doxios(); /* func to do xios menu */
BYTE *dosysp(); /* func to do sys param menu */
BYTE *dorsp(); /* func to display & handle RSPs */
BYTE *dolbl(); /* func to modify version label */
BYTE *domem(); /* handle memory partitions */
BYTE *doxbufs(); /* func to construct bdos buffers */
BYTE *addmem(); /* add mem part */
BYTE *delmem(); /* delete mem part */
BYTE *rspinclude(); /* include a bunch of RSPs */
BYTE *rspexclude(); /* exclude a bunch of RSPs */
BYTE *doexit(); /* exit the main menu */
sprintf(mainmtitle,"*** %s %s Main Menu ***",VERLABEL,PROGNAME);
destdrv = getdrive(); /* returns the default drive */
drvmsg = malloc(50);
sprintf(drvmsg,"%s Output To (Destination) Drive",SYSFILE);
delmsg = malloc(55);
sprintf(delmsg,"Delete (instead of rename) old %s file\n",SYSFILE);
m=NULLPTR; x=NULLPTR; me=NULLPTR; s=NULLPTR; r=NULLPTR; /* init menu pointers */
/***** initialize menus *****/
#ifdef CCPM
m=bldmenu(m,MPROC,help,"help","GENCCPM Help");
m=bldmenu(m,MBOOL,&verbose,"verbose","More Verbose GENCCPM Messages");
#endif
#ifdef MPM
m=bldmenu(m,MPROC,help,"help","GENMPM Help");
m=bldmenu(m,MBOOL,&verbose,"verbose","More Verbose GENMPM Messages");
#endif
m=bldmenu(m,MDRIV,&destdrv,"destdrive",drvmsg);
m=bldmenu(m,MBOOL,&doclean,"deletesys",delmsg);
m=bldmenu(m,MPROC,dosysp,"sysparams","Display/Change System Parameters");
s=bldmenu(s,MDRIV,sd_srchdisk,"sysdrive","System Drive");
s=bldmenu(s,MDRIV,sd_tempdisk,"tmpdrive","Temporary File Drive");
s=bldmenu(s,MBOOL,sd_dayfile,"cmdlogging","Command Day/File Logging at Console");
s=bldmenu(s,MBOOL,sd_cmode,"compatmode","CP/M FCB Compatibility Mode");
s=bldmenu(s,MWORD,sd_mmp,"memmax","Maximum Memory per Process (paragraphs)");
s=bldmenu(s,MBYTE,sd_popen_max,"openmax","Open Files per Process Maximum");
s=bldmenu(s,MBYTE,sd_plock_max,"lockmax","Locked Records per Process Maximum\n");
s=bldmenu(s,MWORD,sd_mpmseg,"osstart","Starting Paragraph of Operating System");
s=bldmenu(s,MWORD,&totopen,"nopenfiles","Number of Open File and Locked Record Entries");
s=bldmenu(s,MBYTE,&xtrapds,"npdescs","Number of Process Descriptors");
s=bldmenu(s,MBYTE,&totqcbs,"nqcbs","Number of Queue Control Blocks");
s=bldmenu(s,MWORD,&qbuflen,"qbufsize","Queue Buffer Total Size in bytes");
m=bldmenu(m,MPROC,domem,"memory","Display/Change Memory Allocation Partitions");
me=bldmenu(me,MPROC,addmem,"add","ADD Memory Partition(s)");
me=bldmenu(me,MPROC,delmem,"delete","DELETE Memory Partition(s)");
#ifdef MPM
m=bldmenu(m,MPROC,doxios,"xios","Display/Change XIOS Dependent Values");
x=bldmenu(x,MBYTE,sd_ncns,"nconsoles","Number of System Consoles");
x=bldmenu(x,MBYTE,sd_nlst,"nprinters","Number of System Printers");
x=bldmenu(x,MBYTE,sd_nccb,"nccbs","Total Character Control Blocks");
x=bldmenu(x,MBYTE,sd_nflags,"nflags","Number of Flags");
x=bldmenu(x,MBYTE,sd_tickspsec,"nticks","Number of Ticks Per Second");
#endif
#ifdef CCPM
m=bldmenu(m,MPROC,doxbufs,"diskbuffers","Display/Change Disk Buffer Allocation");
#endif
if( dogensys )
m=bldmenu(m,MPROC,dolbl,"oslabel","Display/Change Operating System Label");
m=bldmenu(m,MPROC,dorsp,"rsps","Display/Change RSP list\n");
r=bldmenu(r,MPROC,rspinclude,"include","Include RSPs");
r=bldmenu(r,MPROC,rspexclude,"exclude","Exclude RSPs");
m=bldmenu(m,MPROC,doexit,"gensys","I'm finished changing things, go GEN a SYStem\n");
mainmenu=m; /* assign now to longer name */
xiosmenu=x; /* assign to longer name */
memmenu=me; /* yah yah */
syspmenu=s; /* " " */
rspmenu=r; /* " " */
}
BYTE *
doexit() /* this is really a boolean... */
{
doit = TRUE;
return NULLPTR;
}
/**************************************************************************/
/* sysvalid: validates system data.
/* also calculates certain SYSDAT variables, in the course of validation.
/**************************************************************************/
#define BYTE_ADJUST(xx) if( xx > 0xFF ) xx = 0xFF
#define ALIGN(xx) (((xx)+0xF) & 0xFFF0)
BOOLEAN
sysvalid()
{
REG BOOLEAN isv; /* is valid? */
#ifdef CCPM
BOOLEAN xiosvalid(); /* check xios info */
#endif
LOCAL WORD nmparts; /* number of memory partitions */
isv = TRUE; /* innocent until proven guilty */
if( totopen < *sd_popen_max ) {
USERR("'nopenfiles' is less than 'openmax'. Please adjust.\n");
isv = FALSE;
}
if( totopen < *sd_plock_max ) {
USERR("'nopenfiles' is less than 'lockmax'. Please adjust.\n");
isv = FALSE;
}
if( (nmparts=cntmlist(memroot)) <= 0 ) {
USERR("Memory Partitions need to be adjusted\n");
isv = FALSE;
}
#ifdef CCPM
if( !xiosvalid() ) { /* xios info needs work? */
USERR("Disk Performance Buffers need to be adjusted\n");
isv=FALSE;
}
#endif
if( !isv )
USERR("Please correct the System Parameters\n");
return isv;
}
/**************************************************************************/
/* make_sysfile: responsible for preparing SYSfile image for table generation
/* and
/* if( dousesys )
/* doctors up SYSFILE for appropriate table generation and fixups
/* else constructs a SYSfile from assembled modules
/**************************************************************************/
VOID make_sysfile()
{
BYTE fbuf[20]; /* file name buffer */
PUTDRV(fbuf,NEWSYS);
unlink(fbuf); /* this is the file we'll be using */
if( (fns=BWCREAT(fbuf))<0 ) { /* try to open for output */
USERR("can't open new .SYS file (%s)\n",fbuf);
exit(1);
}
if( dogensys )
gensys(); /* make a new SYS file from modules */
else edsys(); /* edit the old SYS file */
}
/**************************************************************************/
/* gensys: generates a new SYS file image from modules
/**************************************************************************/
VOID
gensys()
{
WORD fxm; /* file descriptor for xios mod */
BYTE fbuf[20];
if( doclean ) { /* clean up the SYSFILE first? */
PUTDRV(fbuf,SYSFILE);
unlink(fbuf); /* delete if there... */
}
if(verbose) printf("Generating new SYS file\n");
FCHECK(fns); /* File error check */
write(fns,cmdhdr,SECSIZ); /* write out a (dummy) command hdr */
genfix(); /* remember the sysdat & sup fixups */
clsup = xfergrp(SUPMOD,GTYPCODE);
clos_label = writelbl(); /* write the OS label (returns 0 if none exists) */
if( clos_label != 0 )
*sd_verptr = clsup<<4; /* fill in offset of label rel sup code seg */
genfix(); clrtm = xfergrp(RTMMOD,GTYPCODE);
genfix(); clmem = xfergrp(MEMMOD,GTYPCODE);
genfix(); clcio = xfergrp(CIOMOD,GTYPCODE);
genfix(); clbdos= xfergrp(BDOSMOD,GTYPCODE);
#ifdef NET
genfix(); clnet = xfergrp(NETMOD,GTYPCODE);
#else
clnet = 0;
#endif
fxm = BROPEN(XIOSMOD); /* look at XIOS module */
if( grpseek(fxm,GTYPDATA) >= 0){ /* is there a data group?*/
#ifdef CCPM
USERR("XIOS has separate code and data (small model)");
USERR("This is not supported in this O.S.: use 8080 model.");
exit(1);
#else
pure_xios = TRUE; /* ifso, it's separate code & data */
genfix(); clxios = xfergrp(XIOSMOD,GTYPCODE);
#endif
} else {
pure_xios = FALSE;
clxios = 0;
}
cltotal = clsup+clos_label+clrtm+clmem+clcio+clbdos+clnet+clxios;
/*** finished writing the code portion of NEWSYS ***/
fldstart = lseek(fns,0L,1); /* where in file SYSDAT gets written */
dsstart = *sd_mpmseg + cltotal; /* where in memory SYSDAT gets loaded */
dlsysdat = xfergrp(SYSMOD,GTYPDATA); /* system data area, fixed later */
if( pure_xios )
dlxios = xferpart_grp(fxm,GTYPDATA,dlsysdat);
else { genfix(); dlxios = xferpart_grp(fxm,GTYPCODE,dlsysdat); }
close(fxm); /* don't need this file descriptor */
dltotal = dlsysdat+dlxios; /* this will change later */
/*** finished writing STATIC data portion of NEWSYS ***/
/*** fill in sysdat here ***/
sd_supmod->ep_eseg = sd_supmod->ep_iseg = *sd_mpmseg;
sd_rtmmod->ep_eseg = sd_rtmmos->ep_iseg = sd_supmod->ep_eseg+clsup+clos_label;
sd_memmod->ep_eseg = sd_memmod->ep_iseg = sd_rtmmod->ep_eseg+clrtm;
sd_ciomod->ep_eseg = sd_ciomod->ep_iseg = sd_memmod->ep_eseg+clmem;
sd_bdosmod->ep_eseg = sd_bdosmod->ep_iseg = sd_ciomod->ep_eseg+clcio;
sd_xiosmod->ep_eseg = sd_xiosmod->ep_iseg = sd_bdosmod->ep_eseg+clbdos;
#ifdef NET
sd_netmod->ep_eseg = sd_netmod->ep_iseg = sd_xiosmod->ep_eseg+clxios;
#endif
if( pure_xios ) /* compute xios offsets */
sd_xiosmod->ep_ioff = 0; /* separate code */
else sd_xiosmod->ep_ioff = dlsysdat<<4; /* mixed code & data, after sysdat */
sd_xiosmod->ep_eoff = sd_xiosmod->ep_ioff + 3;
}
/****************************************************************************/
genfix() /* subroutine to remember SYSDAT & Super fixups */
{
LONG fa;
fa = lseek(fns,0L,1); /* where are we in this file? */
fixlater(fa+6,F_PUT,&dsstart); /* fix the SYSDAT address */
fixlater(fa+8,F_PUT,&(sd_supmod->ep_eoff)); /* Supervisor entry offset */
fixlater(fa+10,F_PUT,&(sd_supmod->ep_eseg)); /* " " segment */
}
/**************************************************************************/
/* edsys: edit the old SYS file image.
/* - copies old sys file into new
/* - if( donew_xios ) will patch in a new XIOS from module
/**************************************************************************/
VOID
edsys()
{
if(verbose) printf("Editting old SYS file\n");
write(fns,cmdhdr,SECSIZ); /* leave room for command hdr */
cltotal = xfergrp(SYSFILE,GTYPCODE);
dltotal = xfergrp(SYSFILE,GTYPDATA);
if( donew_xios ) {
; /* need to read 'xt' from XIOS module */
} else {
#ifdef CCPM
; /* need to init 'xt' from sysdat */
#endif
}
}
/**************************************************************************/
/* fixups: inserts updated SYSDAT page into NEWSYS file, and does some
/* address fixups
/**************************************************************************/
VOID fixups()
{
REG WORD ii; /* counter */
GROUP *cg, *dg; /* group ptrs */
UWORD genmfl(); /* (re)Gen Memory Free List */
if(verbose) printf("Doing fixups\n");
FCHECK(fns); /* File error check */
/*** fixup the memory list ***/
if(verbose) {
printf("SYS image load map:\n");
printf(" Code starts at %4.4x\n",*sd_mpmseg);
printf(" Data starts at %4.4x\n",dsstart);
printf(" Tables start at %4.4x\n",(dsotables>>4)+dsstart);
printf(" RSPs start at %4.4x\n",(dsotables>>4)+dsstart+dltables);
printf(" XIOS buffers start at %4.4x\n",rsvd_seg);
printf(" End of OS at %4.4x\n",*sd_endseg);
}
if( trimlist(*sd_mpmseg,*sd_endseg) ) { /* mem part list trimmed? */
printf("Trimming memory partitions. New list:");
dspmlist(memroot);
lseek( fns, locmfl, 0 );
ii = (dlsysdat+dlxios)<<4;
genmfl(ii); /*****/
}
#ifdef CCPM
/*** fixup XIOS info ***/
fixupxios_info(); /* fixes the buffer info (DPH info) */
#endif
/*** fixup the command header ***/
for( ii=0; ii<SECSIZ; ii++ ) /* zero out command header */
cmdhdr[ii] = '\0';
cg = cmdhdr; /* code group first */
cg->gtype = GTYPCODE; /* init all code vars */
cg->glen = cltotal; /* total length of code groups */
cg->gmin = cltotal; /* min length of code group */
cg->gabase = *sd_mpmseg; /* loads at absolute address */
dg = cmdhdr + sizeof(*cg); /* data group next */
dg->gtype = GTYPDATA; /* init all data vars */
dg->glen = dltotal; /* total length of data group+tables */
dg->gmin = dltotal; /* min length of data group */
dg->gabase = cg->gabase+cltotal;/* abs addr of start of system data */
lseek( fns, 0L, 0 ); /* seek the beginning of NEWSYS */
write(fns,cmdhdr,SECSIZ); /* write out the command header */
/*** fixup the sysdat page ***/
lseek(fns,fldstart,0); /* seek there in file */
write(fns,sdat_area,SDLEN); /* put it into the file */
/*** take care of the little fixes ***/
fixfile(); /* fixes from the list */
}
/**************************************************************************/
/* wrapup: closes files
/**************************************************************************/
VOID wrapup()
{
BYTE buf1[20], buf2[20];
if(verbose) printf("Wrapping up\n");
FCHECK(fns); /* File error check */
lseek(fns,0L,2); /* flush NEWSYS buffers? */
if(strlen(edsysver) != write(fns,edsysver,strlen(edsysver))) {
USERR("WRITE FAILURE - the disk may be too full\n");
exit(1);
}
close(fns); /* all finished with NEWSYS */
PUTDRV(buf1,OLDSYS); unlink(buf1);
PUTDRV(buf2,SYSFILE); rename(buf2,buf1);
PUTDRV(buf1,NEWSYS); rename(buf1,buf2);
}
/***************************************************************/
/***************************************************************/
/* edszzz.c: the rest of edsys.c, broken up for shorter compiles */
/***************************************************************/
/***************************************************************/
#ifndef MAINMODULE
#include <genccpm.h>
#endif
/**************************************************************************/
/* init_sds: points the system data pointers to the right place
/**************************************************************************/
VOID
init_sds(sysdat)
BYTE *sysdat; /* ptr to system data buffer */
{
sd_supmod = sysdat + 0x00; /* (4) */
sd_rtmmod = sysdat + 0x08; /* (4) */
sd_memmod = sysdat + 0x10; /* (4) */
sd_ciomod = sysdat + 0x18; /* (4) */
sd_bdosmod = sysdat + 0x20; /* (4) */
sd_xiosmod = sysdat + 0x28; /* (4) */
sd_netmod = sysdat + 0x30; /* (4) */
sd_mpmseg = sysdat + 0x40;
sd_rspseg = sysdat + 0x42;
sd_endseg = sysdat + 0x44;
sd_module_map = sysdat + 0x46;
sd_ncns = sysdat + 0x47;
sd_nlst = sysdat + 0x48;
sd_nccb = sysdat + 0x49;
sd_nflags = sysdat + 0x4A;
sd_srchdisk = sysdat + 0x4B;
sd_mmp = sysdat + 0x4C;
sd_nslaves = sysdat + 0x4E;
sd_dayfile = sysdat + 0x4F;
sd_tempdisk = sysdat + 0x50;
sd_tickspsec = sysdat + 0x51;
sd_lul = sysdat + 0x52;
sd_ccb = sysdat + 0x54;
sd_flags = sysdat + 0x56;
sd_mdul = sysdat + 0x58;
sd_nxmds = sysdat + 0x58;
sd_mfl = sysdat + 0x5A;
sd_nmparts = sysdat + 0x5A;
sd_pul = sysdat + 0x5C;
sd_nxpd = sysdat + 0x5C;
sd_qul = sysdat + 0x5E;
sd_nqds = sysdat + 0x5D;
sd_qmau = sysdat + 0x60; /* (4) */
sd_qmastart = sysdat + 0x62;
sd_qmalen = sysdat + 0x64;
sd_verptr = sysdat + 0x78;
sd_vn = sysdat + 0x7A;
sd_mpmvn = sysdat + 0x7C;
sd_ncondev = sysdat + 0x83;
sd_nlstdev = sysdat + 0x84;
sd_nciodev = sysdat + 0x85;
#ifdef MPM
sd_plock_max = sysdat + 0x8A;
sd_popen_max = sysdat + 0x8C;
#endif
#ifdef CCPM
sd_lcb = sysdat + 0x86;
sd_popen_max = sysdat + 0x8A;
sd_plock_max = sysdat + 0x8B;
#endif
sd_cmode = sysdat + 0x90;
}
/************************************************************************/
/* doxios: gets miscellaneous XIOS values from user */
/************************************************************************/
BYTE *
doxios(bb,xmtitle) /* submenu for XIOS value mods */
BYTE *bb; /* value passed in from menu */
BYTE *xmtitle;
{
BYTE cmds[CMDSLEN]; /* space for additional commands */
EXTERN MENU *xiosmenu; /* list of menu items for xios menu */
EXTERN BYTE *clearit;
if( bb != NULLPTR ) { /* if any "command line" arguments */
domenu(bb,xiosmenu); /* do what they've asked for */
} else FOREVER { /* work with user for a while */
printf("%s",clearit); /* clear screen */
prtmenu(xmtitle,xiosmenu); /* display user options */
printf(PROMPT); /* prompt user */
if( gets(cmds)!=cmds || /* on end of file */
*cmds==NULL ) /* or blank line of input */
break; /* exit interaction with user */
domenu(cmds,xiosmenu); /* do what they've asked for */
} /*****************************/
return NULLPTR; /* standard return... */
}
/************************************************************************/
/* dosysp: gets miscellaneous system paramaters from user */
/************************************************************************/
BYTE *
dosysp(bb,smtitle) /* submenu for SYSP value mods */
BYTE *bb; /* value passed in from menu */
BYTE *smtitle;
{
BYTE cmds[CMDSLEN]; /* space for additional commands */
EXTERN MENU *syspmenu; /* list of menu items for sysp menu */
EXTERN BYTE *clearit;
if( bb != NULLPTR ) { /* if any "command line" arguments */
domenu(bb,syspmenu); /* do what they've asked for */
} else FOREVER { /* work with user for a while */
printf("%s",clearit); /* clear screen */
prtmenu(smtitle,syspmenu); /* display user options */
printf(PROMPT); /* prompt user */
if( gets(cmds)!=cmds || /* on end of file */
*cmds==NULL ) /* or blank line of input */
break; /* exit interaction with user */
domenu(cmds,syspmenu); /* do what they've asked for */
} /*****************************/
return NULLPTR; /* standard return... */
}
/*************************************************************************/
/* dorsp: handles rsp editting */
/*************************************************************************/
BYTE *
dorsp(parm,xmtitle) /* handle RSP list editting */
BYTE *parm; /* command value parameter */
BYTE *xmtitle;
{
BYTE cmds[CMDSLEN]; /* space for additional commands */
EXTERN MENU *rspmenu; /* list of menu items for rsp menu */
EXTERN BYTE *clearit;
if( parm != NULLPTR ) { /* if any "command line" arguments */
domenu(parm,rspmenu); /* do what they've asked for */
} else FOREVER { /* work with user for a while */
printf("%s",clearit); /* clear screen */
rsp_display(rsps); /* display what they have to work with */
prtmenu(xmtitle,rspmenu); /* display user options */
printf(PROMPT); /* prompt user */
if( gets(cmds)!=cmds || /* on end of file */
*cmds==NULL ) /* or blank line of input */
break; /* exit interaction with user */
domenu(cmds,rspmenu); /* do what they've asked for */
} /*****************************/
return NULLPTR; /* standard return... */
}
/*************************************************************************/
BYTE *
rspinclude(rs)
BYTE *rs;
{
BYTE *bp, *cp, *ep; /* ptrs to take apart command str */
DLIST *dd;
if( rs==NULLPTR || *rs==NULL )
return "You need to say 'include=xx.rsp,yy.rsp,zz.rsp'";
for( ep=rs; *ep; ++ep ) ; /* end of string pointer */
for( bp=rs; bp<ep; bp=cp+1 ){ /* process each rsp spec */
for( cp=bp; *cp && *cp!=','; ++cp ) ; /* find eos or comma */
if( *cp == ',' ) *cp = '\0'; /* null terminate the spec */
if( (dd=dirsearch(bp)) == NULLPTR )
return "Can't find RSP to include";
rspjoin(dd);
}
return NULLPTR;
}
rspjoin(dd)
DLIST *dd;
{
DLIST *rs;
if( rsps == NULLPTR )
rsps = dd;
else {
for( rs=rsps; rs->dlnext != NULLPTR; rs=rs->dlnext ) ;
rs->dlnext = dd;
}
}
/*************************************************************************/
BYTE *
rspexclude(rs)
BYTE *rs;
{
BYTE *bp, *cp, *ep;
BOOLEAN rspzap();
if( rs==NULLPTR || *rs==NULL )
return "You need to say 'exclude=aa.rsp,bb.rsp,cc.rsp'";
for( ep=rs; *ep; ++ep ) ; /* find eos */
for( bp=rs; bp<ep; bp=cp+1 ){ /* process each rsp spec */
for( cp=bp; *cp && *cp!=','; ++cp ) ; /* find eos or comma */
if( *cp == ',' ) *cp = '\0'; /* null terminate the spec */
if( !rspzap(bp) )
return "Can't find RSP to exclude";
}
return NULLPTR;
}
BOOLEAN
rspzap(nm)
BYTE *nm;
{
DLIST **qs, *ps, *rs;
if( *nm == '*' ) { /* zap entire list? */
for( ps=rsps; ps!=NULLPTR; ps=rs ) {
rs = ps->dlnext;
free(ps);
}
rsps = NULLPTR;
return TRUE;
}
for( qs= &rsps; *qs!=NULLPTR; qs = &rs->dlnext ) { /* zap part of list */
rs = *qs;
if( namematch(nm,rs->dlname) ) {
*qs = rs->dlnext;
free(rs);
return TRUE;
}
}
return FALSE; /* thru loop, can't find it */
}
namematch(s1,s2)
BYTE *s1, *s2;
{
for( ; *s1 && *s2; ++s1, ++s2 )
if( toupper(*s1) != toupper(*s2) )
return FALSE;
if( *s1 || *s2 )
return FALSE;
else return TRUE;
}
/**************************************************************************/
#define PAGEWIDTH 72
rsp_display(rp)
DLIST *rp;
{
WORD ii;
printf("\nRSPs to be included are:\n");
for( ii=0; rp!=NULLPTR; rp = rp->dlnext ) {
if( (ii += 15) > PAGEWIDTH ) {
printf("\n");
ii=15;
}
printf(" %12.12s",rp->dlname);
}
printf("\n");
}
/**************************************************************************/
/* grpseek: seeks in MOD file 'fd' to the start of a code/data group, */
/* returns length (in bytes) of that group */
/*************************************************************************/
LONG
grpseek(fde,gt)
WORD fde; /* file descriptor */
WORD gt; /* group type to look for */
{
WORD gc; /* group counter */
LONG dps; /* pgphs to group base in file */
GROUP grp; /* structure for Cmd Hdr info */
if( lseek(fde,0L,0) < 0 ) /* seek to beginning of file */
CRASH("grp cmd header seek failed\n");
dps=8; /* pgphs to start of load group */
for( gc=0; gc<8; gc++ ) { /* search up to 8 groups in cmd hdr */
read(fde,&grp,sizeof(grp)); /* read each group in header */
if( grp.gtype == gt ) /* the group we want */
break;
dps += grp.glen; /* add in size of previous group */
}
if( grp.gtype != gt ) /* did we find the group? */
return ((LONG) FAILURE); /* nope, so fail */
dps = dps << 4; /* pgphs xfm to bytes */
if( lseek(fde,dps,0) < 0 ) /* seek to start of data group */
CRASH("grp group seek failed\n");
return ((LONG)((grp.glen)<<4)); /* return group size in bytes */
}
/**************************************************************************/
/* xfer rtns: transfer a group from file 'module' to file NEWSYS (fns)
/* returns number of paragraphs in the group
/**************************************************************************/
WORD
xfergrp(module,group_type)
BYTE *module; /* module name */
WORD group_type; /* code? or data? */
{
REG WORD fm; /* file descriptor for module */
REG WORD rv; /* return value */
if( (fm=BROPEN(module)) < 0 ) /* open the module for binary reading */
CRASH("can't find a system module\n");
rv = xferpart_grp(fm,group_type,0);
close(fm);
return rv;
}
/**************************************************************************/
WORD
xferpart_grp(fm,gt,skip)
WORD fm; /* file descriptor for module */
WORD gt; /* group type: code or data */
UWORD skip; /* num pgphs to skip in this group */
{
REG WORD ii; /* counter */
REG LONG xx, yy; /* long counters */
BYTE xferbuf[BUFSIZ]; /* a transfer buffer */
GROUP grp; /* a group area */
if( lseek(fm,0L,0) < 0 ) /* seek to beginning of file */
CRASH("grp cmd header seek failed\n");
yy = skip+8; /* num pgphs to skip + in cmd hdr */
for( ii=0; ii<8; ++ii ) { /* read group hdrs in cmd hdr */
read(fm,&grp,sizeof(grp));
if( grp.gtype == gt )
break;
yy += grp.glen; /* count #pgphs in this group to skip */
}
if( grp.gtype!=gt ) CRASH("module doesn't have group\n");
xx = yy << 4; /* cvt to bytes */
if( lseek(fm,xx,0)<0 ) CRASH("couldn't seek in module\n");
xx = grp.glen; xx -= skip; /* pgphs to xfer */
for( yy=xx<<4; yy>0; yy-=ii ){ /* xfer bytes to NEWSYS */
ii = ( yy > BUFSIZ ? BUFSIZ : yy ); /* num bytes per xfer */
if( read(fm,xferbuf,ii) != ii ) CRASH("not enough bytes in module\n");
write(fns,xferbuf,ii);
}
return (WORD)(xx); /* convert to pgphs */
}
/**************************************************************************/
/* help: prints out a help message */
/**************************************************************************/
BYTE *helpm1[] = {
"\n\n",
"\t\t*** GENCCPM Help Function ***",
"\t\t============================",
" GENCCPM lets you edit and/or generate a system image from",
"operating system modules on the default drive. A detailed",
"explanation of each parameter may be found in the Concurrent CP/M-86",
"System Guide, Section 2.\n",
" GENCCPM assumes the default values shown within square",
"brackets. All numbers are Hexadecimal. To change a parameter,",
"enter the parameter name followed by '=' and the new value. Type",
"<CR> (a carriage return) to enter the assignment. You can make",
"multiple assignments if you separate them by a space. No spaces",
"are allowed within an assignment. Example:\n",
"CHANGES? verbose=N sysdrive=A: openmax=1A <CR>\n",
"Parameter names may be shortened to the minimum combination of",
"letters unique to the currently displayed menu. Example:\n",
"CHANGES? v=N sysd=A: op=1a <CR>\n",
NULLPTRI
};
BYTE *helpm2[] = {
"\n\n",
"Sub-menus (the last few options without default values) are accessed",
"by typing the sub-menu name followed by <CR>. You may enter",
"multiple sub-menus, in which case each sub-menu will be displayed",
"in order. Example:\n",
"CHANGES? help sysparams rsps <CR>\n",
"Enter <CR> alone to exit a menu, or a parameter name, '=' and the",
"new value to assign a parameter. Multiple assignments may be",
"entered, as in response to the Main Menu prompt.\n",
NULLPTRI
};
BYTE *
help(tx) /* print a helpful message to user */
BYTE *tx;
{
REG BYTE **cpp; /* pointer to help strings */
for( cpp=helpm1; *cpp != NULLPTR; cpp++ )
printf("%s\n",*cpp);
press_return();
for( cpp=helpm2; *cpp != NULLPTR; cpp++ )
printf("%s\n",*cpp);
press_return();
return NULLPTR;
}
/************************************************************************/
/* memory list allocation */
/**************************************************************************/
BYTE *
domem(cmdval,memtitle)
BYTE *cmdval;
BYTE *memtitle;
{
WORD cntmlist(); /* does list validation */
BOOLEAN okl; /* okay list */
BYTE cmds[CMDSLEN]; /* place to put input */
EXTERN MLIST *memroot; /* memory list root */
EXTERN MENU *memmenu; /* memory edit menu */
EXTERN BYTE *clearit;
okl = (cntmlist(memroot) > 0); /* overlap chk & condense */
if(cmdval!=NULLPTR) {
domenu(cmdval,memmenu); /* do the commands */
okl = (cntmlist(memroot)>0);/* check the results */
}
if( !okl || cmdval==NULLPTR ) /* do we need to interact with user? */
FOREVER { /* display, the edit */
printf("%s",clearit); /* clear the screen (maybe) */
dspmlist(memroot); /* here's what it looks like */
prtmenu(memtitle,memmenu); /* here's how to edit */
printf(PROMPT); /* what to do? */
if( gets(cmds)!=cmds || *cmds==NULL ) { /* see if the want to get out */
if(okl)
break;
else {
printf("Please adjust memory partitions\n");
press_return();
continue;
}
}
domenu(cmds,memmenu); /* edit the memory list */
okl = (cntmlist(memroot)>0);/* validate the memory list */
}
return NULLPTR; /* standard return */
}
/**************************************************************************/
BYTE *
addmem(ms) /* add memory partitions */
BYTE *ms; /* memory partition spec */
{
REG BYTE *pl; /* pointer to last addr spec */
REG BYTE *ps; /* pointer to size spec */
UWORD f, l, s; /* values of spec */
MLIST *intomlist(), *mnew; /* where to put them */
EXTERN MLIST *memroot; /* memory partitions list */
BYTE *badspec = "Add memory partition spec should look like:\n\tadd=first,last,size";
BYTE *badval = "Spec: add=first,last,size\n\twhere last>first, size>80";
BYTE *index();
if( (pl=index(ms,','))==0) /* look for ptr to last addr */
return badspec;
else *pl++ = NULL; /* terminate first addr spec */
if( (ps=index(pl,','))==0) /* look for ptr to size */
return badspec;
else *ps++ = NULL;
f=atoih(ms); /* convert first addr spec */
s=atoih(ps); /* convert size spec */
if( *pl=='+' ) /* last addr relative to first? */
l=atoih(pl+1)+f; /* yes, so calculate */
else if( *pl==NULL || *pl=='*' ) {
if( *pl=='*' ) /* last addr multiple of size? */
l=atoih(pl+1); /* spec multiple */
else l=1; /* default multiple=1 */
l = f+l*s; /* s in paragraphs */
} else l=atoih(pl); /* no, it's absolute address */
if( l<=f || s==0 ) /* 1st validation check */
return badval;
if( s<MINKMEM ) /* 2nd validation check */
return "Memory partition must be at least 80 paragraphs";
mnew = (MLIST *)malloc(sizeof(*mnew)); /* make room */
mnew->mlfirst = f;
mnew->mllast = l;
mnew->mlsize = s;
memroot=intomlist(memroot,mnew); /* sorted insertion into list */
if( s > l-f ) /* check: size_partition > mem_region */
return "Warning: partition size larger than memory region";
return NULLPTR; /* everything okay */
}
/**************************************************************************/
BYTE *
delmem(ms) /* delete memory partition */
BYTE *ms;
{
REG WORD df, dl; /* delete first, last */
MLIST **mm, **mn, *mo, *mp, *mq; /* necessary list ptrs */
EXTERN MLIST *memroot; /* memory partitions list */
BYTE *pl;
WORD i;
BYTE *badspec="To delete a memory partition, say\n\tdelete=1 or delete=1-3\n";
if( *ms == '*' ) { /* delete all? */
for( mp=memroot; mp!=NULLPTR; mp=mq ) {
mq = mp->mlnext; /* save the pointer before we free it */
free(mp);
}
memroot = NULLPTR;
return NULLPTR; /* everything okay */
}
if( (pl=index(ms,'-')) == 0 )
pl=ms; /* point last to first */
else *pl++ = NULL; /* else point to after 'dash' */
df=atoi(ms); /* decimal conversion */
dl=atoi(pl);
for( i=1, mm=&memroot, mn=NULLPTR, mo=memroot;
i<=dl && mo!=NULLPTR;
++i ) {
if( i==df ) mn=mm; /* found first, pt to ptr to */
mm = &mo->mlnext; /* ptr to ptr */
mo = mo->mlnext;
}
if( mn==NULLPTR || i<=dl ) /* check range of deletions */
return badspec;
mp = *mn; /* save ptr to deleted list */
*mn = mo; /* cut them suckers out of the list */
for( ; mp!=mo; mp=mq ) {
mq = mp->mlnext;
free(mp);
}
return NULLPTR; /* everything ok */
}
/**************************************************************************/
dspmlist(mroot)
MLIST *mroot;
{
MLIST *mn, *mo;
REG WORD i, nump;
printf("\n\n");
printf(" Addresses Partitions (in paragraphs)\n");
printf(" # Start Last Size Qty \n");
for( i=1, mn=mroot; mn!=NULLPTR; ++i, mn=mo ) {
nump = (mn->mllast-mn->mlfirst) / mn->mlsize;
printf("%2.2d. %4.4xh %4.4xh %4.4xh %4.4xh ",
i,mn->mlfirst,mn->mllast,mn->mlsize,nump);
if( (mo=mn->mlnext) != NULLPTR ) { /* do some checking */
if( mn->mllast > mo->mlfirst )
printf("**overlaps** ");
if( mn->mlsize > mn->mllast-mn->mlfirst )
printf("**partition too big** ");
}
printf("\n");
}
}
/**************************************************************************/
WORD
cntmlist(mroot) /* check for overlaps, condense if possible */
MLIST *mroot; /* returns number mem partitions, 0 if bad list */
{
MLIST *mn, *mo; /* ptr within list */
REG BOOLEAN olap; /* partitions overlap or bad size */
REG WORD nump; /* number of partitions this block */
REG WORD totnump; /* keep the count going */
totnump = 0; /* total number partitions */
olap = FALSE; /* innocent until proven guilty */
for( mn=mroot; mn!=NULLPTR && (mo=mn->mlnext)!=NULLPTR; ) {
if( mn->mlsize==mo->mlsize ){ /* partitions same size? */
if( mn->mlfirst==mo->mlfirst && /* same partitions? */
mn->mllast==mo->mllast ) {
mn->mlnext=mo->mlnext;
free(mo); /* mo is redundant, zap it */
continue;
} else
if( mn->mllast==mo->mlfirst || /* adjacent partition? */
mn->mllast==(mo->mlfirst-1) ) {
mn->mllast=mo->mllast; /* make 1st partition bigger */
mn->mlnext=mo->mlnext; /* zap out mo from list */
free(mo); /* we don't need it any more */
continue;
}
}
if( mn->mllast > mo->mlfirst )
olap=TRUE; /* partitions overlap */
nump = (mn->mllast-mn->mlfirst) / mn->mlsize;
if( nump<=0 )
olap=TRUE; /* size > partition */
else totnump += nump; /* incr this count */
mn=mo; /* continue through loop */
}
if( mn!=NULLPTR ) { /* catch the last in the loop */
nump = (mn->mllast-mn->mlfirst) / mn->mlsize;
if( nump<=0 )
olap=TRUE; /* size > partition */
else totnump += nump; /* incr this count */
}
if( olap )
return 0; /* boo boo, return 0 */
else return totnump; /* return num partitions */
}
/**************************************************************************/
MLIST *
intomlist(mroot,mi) /* insert mi into list mroot sorted */
MLIST *mroot;
MLIST *mi;
{
MLIST **mm; /* ptr to ptr to list */
MLIST *mn; /* ptr to list */
for( mm=&mroot, mn=mroot;
mn != NULLPTR && mi->mlfirst > mn->mlfirst; ){
mm = &mn->mlnext;
mn = mn->mlnext;
}
mi->mlnext = mn;
*mm = mi;
return mroot;
}
/**************************************************************************/
/* trimlist: trims the memory list according to OS bounds */
/**************************************************************************/
BOOLEAN /* returns TRUE iff any adjustments */
trimlist(osstart,osend)
WORD osstart; /* starting pgph */
WORD osend; /* ending pgph */
{
EXTERN MLIST *memroot;
REG MLIST **mm, *mn, *mo; /* ptrs into memlist */
REG WORD ss, zz; /* temp vars */
LOCAL WORD adjusts; /* number of collisions */
adjusts = 0; /* we haven't adjusted anything yet */
for( mm=&memroot, mn=memroot; mn!=NULLPTR; mn=*mm ) {
if( mn->mlfirst < osstart ) {
if( mn->mllast >= osstart ) { /** collision **/
++adjusts; /* we're doing some adjusting */
if( mn->mllast > osend ) { /* real big mem part? */
mo = (MLIST *)malloc(sizeof *mo); /* set it up now, adjust it later */
mo->mlfirst = onbounds(mn->mlfirst,mn->mlsize,osstart);
mo->mllast = mn->mllast;
mo->mlsize = mn->mlsize;
mo->mlnext = mn->mlnext;
mn->mlnext = mo;
}
if( (zz=trimit(mn->mlfirst,osstart-1,mn->mlsize)) > 0 ) {
mn->mllast = osstart-1;
mn->mlsize = zz; /* in case it was trimmed */
} else { /* partitions too small, delete it */
*mm = mn->mlnext;
free(mn);
continue; /* don't increment list ptr */
}
} /**** end collision ****/
} else if( mn->mlfirst < osend ) { /** collision **/
++adjusts; /* we're doing some adjusting */
if( mn->mllast <= osend ) { /* does part cross past os? */
*mm = mn->mlnext; /* no, delete it */
free(mn);
continue;
}
ss = onbounds(mn->mlfirst,mn->mlsize,osend);
if( (zz=trimit(osend,ss,mn->mlsize)) > 0 ){/* set up a smaller mem part */
mo = (MLIST *)malloc(sizeof *mo);
mo->mlfirst = osend+1;
mo->mllast = ss;
mo->mlsize = zz;
mo->mlnext = mn;
*mm = mo;
mm = &mo->mlnext;
}
if( (zz=trimit(ss,mn->mllast,mn->mlsize)) > 0 ){
mn->mlfirst = ss;
mn->mlsize = zz;
} else { /* partition too small, delete */
*mm = mn->mlnext;
free(mn);
continue; /* don't bottom out on this loop */
}
} /**** end collision ****/
mm = &mn->mlnext; /* set up for next partition check */
} /**** end FOR loop ***/
return adjusts>0; /* returns TRUE if we adjusted */
}
WORD /* returns new size of partition, 0 if not enough room */
trimit(start,last,olds)
WORD start; /* start address of partition */
WORD last; /* end address of partition */
WORD olds; /* old partition size */
{
REG WORD ss;
ss = last-start; /* size is in paragraphs */
if( ss< 0 ) return 0; /* negative size */
if( ss<MINKMEM ) return 0; /* sorry, too small */
else if( ss<olds ) return ss-1; /* needs to be smaller */
else return olds; /* fine just the way it is */
}
WORD
onbounds(start,size,nst)
WORD start; /* original starting boundary */
WORD size; /* partition size */
WORD nst; /* new starting address */
{ /* returns addr>nst multiple of size from start */
REG WORD rr;
for( rr=start; rr<nst; rr += size )
;
return rr;
}
/*********************************************************************/
/*********************************************************************/
/* edsgen.c
/* EXPORTS gentable() - the routine which builds all the tables
/*********************************************************************/
/*********************************************************************/
#ifndef MAINMODULE
#include <genccpm.h>
#endif
MLOCAL UWORD rsp_last; /* link to previous RSP */
MLOCAL UWORD rsp_seg; /* where next RSP seg gets written */
#define ALIGN(xx) (((xx)+0xF)&0xFFF0)
#define BYTE_ADJUST(yy) if(yy>0xFF) yy=0xFF
/*************************************************************************/
UWORD /* return new offset */
segwrite(nbs) /* pad to paragraph boundary */
UWORD nbs; /* old offset */
{
REG UWORD nps;
if( nbs & 0xF ) { /* does it need padding? */
nps = 0x10 - (nbs & 0xF); /* number pad bytes needed */
write(fns,"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",nps);
return (nbs+nps);
} else return nbs;
}
UWORD /* return num paragraphs */
padwrite(nbs) /* pad to paragraph boundary */
UWORD nbs; /* num bytes needing padding */
{
return segwrite(nbs) >> 4; /* convert to pgphs */
}
UWORD
datwrite(from,size)
BYTE *from;
WORD size;
{
if( write(fns,from,size) != size ) {
fprintf(stderr,"ERROR: Write to new SYS file failed\n");
fprintf(stderr,"Out of room on disk?\n");
exit(1);
}
return size;
}
/**************************************************************************/
MLOCAL LONG oldladdr=0; /* save previous address for comparison */
#define BIGWORD 0x0000ffffL
chkaddr(uaddr) /* check for SYSDAT overflow */
UWORD uaddr;
{
LONG laddr;
laddr = BIGWORD & uaddr;
if( laddr < oldladdr ) {
USERR("ERROR - System Data Area has grown too large\n");
USERR("Try reducing the size of some of the tables\n");
exit(1);
}
oldladdr = laddr; /* save for wrap around compare */
}
/* this is a kluge: I did it because I couldn't get the LONG cast */
/* to work without doing sign extension... whf 1/20/83 */
/**************************************************************************/
/* EXPORT gentables: generates various tables in system data area,
/* and handles RSPs
/**************************************************************************/
VOID gentables()
{
LOCAL WORD nmparts; /* number of memory partitions */
LOCAL WORD nsat_items; /* number of SAT items in qmau */
LOCAL UWORD damds; /* offset of beginning of tables */
LOCAL UWORD daqbuf; /* offset of beginning of qbuf */
LOCAL LONG daend; /* sys data offset: end of data area */
LOCAL UWORD doffset; /* current offset into data area */
LOCAL UWORD lastlink; /* helps link lists together */
LOCAL WORD count; /* counts num list items being generated */
LOCAL UWORD ucount; /* unsigned counter */
LOCAL MLIST *mn; /* for trapsing down memroot */
LOCAL WORD nump; /* local number partitions */
LOCAL UWORD saddr; /* local starting addr */
LOCAL WORD length; /* local partition length */
BYTE buf[SECSIZ]; /* an area for writing */
LOCAL LONG dmagic; /* fixup location for xt_alloc info */
UWORD genmfl(); /* gen a memory free list */
UWORD genxios(); /* go gen the xios disk buffers */
DLIST *rs; /* ptr to rsp list */
MD md; /* sample memory descriptor */
PD pd; /* " process descriptor */
QCB qcb; /* " queue control block */
CCB ccb; /* " channel control block */
LOCK lock; /* " lock list item */
FLAG flg; /* " flag item */
SATITEM sat; /* " sub allocation table item */
if(verbose) printf("Generating tables\n");
FCHECK(fns); /* File error check */
/* pre-calculate certain vars */
bufs_seg = 0; /* total buf segs allocated in rsvd_seg */
if( (nmparts=cntmlist(memroot)) <= 0 )
CRASH("invalid memory list, aborting\n");
totpds = xtrapds + nmparts; /* 1 pd per memory partition, plus xtras */
BYTE_ADJUST(totpds);
totmds = (3*totpds) + nmparts + (nmparts>>1); /* 3 mds per process, plus */
/* 1 per partition, plus extra for */
/* memory allocator worst case */
BYTE_ADJUST(totmds);
nsat_items = (1+ (1+2*totqcbs)); /* 1 for header entry plus worst case */
dltotal = dlsysdat+dlxios; /* keep track of total data length in pgphs */
doffset = dltotal << 4; /* calculate current data offset */
dsotables = doffset; /* mark the start of tables */
chkaddr(doffset); /* init the function */
/* MEMORY FREE LIST */
locmfl = lseek(fns,0L,1); /* remember where we are writing this */
doffset = genmfl(doffset); /* gen the mem free list */
lastlink = 0; /* UNUSED MEMORY DESCRIPTOR LIST */
zfill(&md,sizeof md); /* init the mem descriptor */
for( count=totmds-nmparts; count>0; --count ) { /* generate rest of mds */
md.md_link = lastlink;
lastlink = doffset;
doffset += datwrite(&md,sizeof(md));
}
*sd_mdul = lastlink; /* store ptr to mds unused */
lastlink = 0; /* UNUSED PROCESS DESCRIPTOR LIST */
zfill(&pd,sizeof(pd));
for( count=totpds; count>0; --count ) {
pd.pd_link = lastlink;
lastlink = doffset;
doffset += datwrite(&pd,sizeof(pd));
}
*sd_pul = lastlink; /* store ptr to pds unused */
lastlink = 0; /* UNUSED QUEUE CONTROL BLOCKS */
zfill(&qcb,sizeof(qcb));
for( count=totqcbs; count>0; --count ) {
qcb.qc_link = lastlink;
lastlink = doffset;
doffset += datwrite(&qcb,sizeof(qcb));
}
*sd_qul = lastlink; /* store ptr to unused qcb list */
lastlink = 0; /* UNUSED LOCKED ITEMS LIST */
zfill(&lock,sizeof(lock));
for( count=totopen; count>0; --count ) {
lock.lo_link = lastlink;
lastlink = doffset;
doffset += datwrite(&lock,sizeof(lock));
}
*sd_lul = lastlink; /* store ptr to unused lock items list */
#ifdef MPM
*sd_ccb = doffset; /* CHANNEL CONTROL BLOCK TABLE */
zfill(&ccb,sizeof(ccb));
ccb.cc_mimic = ccb.cc_msource = 0xFF;
for( count= *sd_nccb; count>0; --count ) {
doffset += datwrite(&ccb,sizeof(ccb));
}
#endif
#ifdef CCPM
*sd_ncns = xt.xt_nvcns;
*sd_ncondev = xt.xt_nccbs;
*sd_ccb = xt.xt_ccb;
*sd_nlst = xt.xt_nlcbs;
*sd_nlstdev = xt.xt_nlcbs;
*sd_lcb = xt.xt_lcb;
*sd_nciodev = *sd_ncondev + *sd_nlstdev;
*sd_tickspsec = xt.xt_ticks_sec;
#endif
*sd_flags = doffset; /* FLAG TABLE */
flg.fl_status = -1;
flg.fl_pd = -1;
for( count= *sd_nflags; count>0; --count ) {
doffset += datwrite(&flg,sizeof(flg));
}
#ifdef CCPM
doffset = genxios(doffset); /* go gen the xios buffering info */
#endif
chkaddr(doffset); /* is table space too big? */
doffset = segwrite(doffset); /* Q Sub Alloc Tab HEADER */
*sd_qmastart = dsstart + (doffset>>4); /* fill in seg addr */
daqbuf = doffset + sizeof(sat)*nsat_items;
zfill(&sat,sizeof(sat));
sat.sa_start = --nsat_items; /* decr before write */
doffset += datwrite(&sat,sizeof(sat)); /* write the header */
/* Q Sub Alloc Tab ENTRIES */
sat.sa_start = daqbuf;
sat.sa_length = qbuflen; /* byte value */
*sd_qmalen = qbuflen>>4; /* pgph value */
doffset += datwrite(&sat,sizeof(sat)); /* write the first sat entry */
zfill(&sat,sizeof(sat));
for( count= --nsat_items; count>0; --count ) {
doffset += datwrite(&sat,sizeof(sat));/* write the rest of the sat entries */
}
zfill(buf,SECSIZ); /* Q BUFFER AREA - may go past 64K */
daend = doffset; /* abandon doffset */
for( ucount=qbuflen; ucount>0; ucount -= length ) {
length = (ucount>SECSIZ ? SECSIZ : ucount);
daend += datwrite(buf,length);
}
doffset = daend & 0xF; /* get low nibble */
daend = (daend >> 4) + padwrite(doffset); /* cvt to pgphs */
dltables = daend - dltotal; /* compute length of tables in pgphs */
dltotal = daend; /* keep track of total data length */
/*** now fill in the rsps ***/
if(verbose) printf("Appending RSPs to system file\n");
FCHECK(fns); /* File error check */
rsp_last = 0;
rsp_seg = dsstart + daend;
for( rs=rsps; rs!=NULLPTR; rs=rs->dlnext ) /* follow the rsp list */
xfer_rsp(rs->dlname);
*sd_rspseg = rsp_last;
dlrsps = rsp_seg - (dsstart + daend);
dltotal += dlrsps;
rsvd_seg = rsp_seg;
#ifdef CCPM
length = xt.xt_alloc; /* how much memory is XIOS requesting */
xt.xt_alloc = rsvd_seg+bufs_seg; /* this is the place they can use */
dmagic = fldstart; /* location of SYSDAT in SYS file */
dmagic += XTABALLOC; /* add in where xt_alloc goes to */
fixlater(dmagic,F_PUT,&(xt.xt_alloc)); /* fix this number later on */
bufs_seg += length; /* allocate requested space */
#endif
*sd_endseg = rsvd_seg+bufs_seg; /* this is where we reserve to */
}
/**************************************************************************/
/* genmfl: writes out a memory free list, assuming file 'fns' is seeking
/* correctly into file.
/**************************************************************************/
UWORD
genmfl(doffset)
UWORD doffset;
{
REG MLIST *mn; /* ptr into EDSYS mem list */
LOCAL WORD nump;
LOCAL UWORD lastlink, length, saddr; /* counter vars */
MD md; /* mem desc struct */
*sd_mfl = doffset; /* gen this list forward */
zfill(&md,sizeof(md)); /* init the data structure */
for( mn=memroot; mn!=NULLPTR; mn=mn->mlnext ) {
nump = (mn->mllast - mn->mlfirst) / mn->mlsize;
saddr = mn->mlfirst; /* use this starting address */
length = md.md_length = mn->mlsize; /* size in pgphs */
for( ; nump>0; --nump ) { /* for each partition */
doffset += sizeof(md); /* incr by sizeof object */
lastlink = doffset; /* record address of where this will go */
if( nump == 1 ) { /* on this group's last partition */
length = md.md_length = mn->mllast-saddr; /* stick in rmdr */
if( mn->mlnext == NULLPTR ) /* on the very last partition */
lastlink=0; /* set end of list */
}
md.md_link = lastlink; /* thread the list */
md.md_start = saddr; /* set the starting addr */
write(fns,&md,sizeof(md)); /* put it into the NEWSYS file */
saddr += length; /* next md starts here */
}
} /* finished with memory partitions */
return doffset;
}
/**************************************************************************/
VOID
zfill(addr,num)
BYTE *addr;
WORD num;
{
for( ; num>0; --num )
*addr++ = '\0';
}
/**************************************************************************/
/**************************************************************************/
#define RSPHDR struct rsp_header
RSPHDR {
UWORD rs_link; /* link to other RSPs */
WORD rs_sdatvar; /* SYSDAT offset: num copies */
BYTE rs_ncopies; /* local: num copies */
BYTE rs_space[11]; /* fill up rest of header */
};
RSPHDR *rhdr; /* RSP's header */
PD *rpd; /* RSP's process descriptor area */
UDA *ruda; /* RSP's uda area */
#define RHDRSIZE (sizeof(RSPHDR)+sizeof(PD)+sizeof(UDA))
#define RHDRPGPHS (RHDRSIZE>>4)
MLOCAL BYTE rh[RHDRSIZE]; /* where to read the RSP header */
MLOCAL BYTE rspnbuf[9]; /* room for copy of pd name */
MLOCAL BYTE *rspname; /* name of RSP */
/**************************************************************************/
xfer_rsp(rspnm)
BYTE *rspnm; /* name of rsp */
{
LOCAL WORD fr; /* rsp file descriptor */
LOCAL WORD ncs; /* number of copies */
rhdr = rh; /* init these vars */
rpd = rh+sizeof(*rhdr); /* points to process descriptor */
ruda = rh+sizeof(*rhdr)+sizeof(*rpd); /* points to user data area */
if( (fr=BROPEN(rspnm)) < 0 ) {
printf("can't open RSP %s\n",rspnm);
exit(1);
}
if( grpseek(fr,GTYPDATA) > 0L){ /* is there a data group? */
ncs = gwab_hdr(fr);
if( rpd->pd_mem == 0 )
xfer_separate_rsp(fr,ncs);
else xfer_pure_rsp(fr,ncs);
} else {
grpseek(fr,GTYPCODE);
ncs = gwab_hdr(fr);
if( rpd->pd_mem == 0 )
xfer_mixed_rsp(fr,ncs);
else {
USERR("RSP %s has non zero MEM field and no data group\n",
rspnm);
}
}
close(fr);
}
/**************************************************************************/
WORD
gwab_hdr(fr)
WORD fr;
{
REG WORD rv; /* return val */
EXTERN BYTE sdat_area[];
rspname = NULLPTR; /* blank out this name */
read(fr,rh,RHDRSIZE);
strncpy(rspnbuf,rpd->pd_name,8);/* store this in case we need it */
if( rhdr->rs_sdatvar != 0 ) {
rspname = rspnbuf;
rv = sdat_area[rhdr->rs_sdatvar] - 1;
} else {
if( rhdr->rs_ncopies > 0 )
rspname = rspnbuf;
rv = rhdr->rs_ncopies;
}
return rv;
}
/**************************************************************************/
xfer_separate_rsp(fr,ncs) /* (many) data and (many) code segs */
WORD fr; /* file desc of RSP file */
WORD ncs; /* number of copies */
{
WORD ii; /* counter */
for( ii=0; ii<=ncs; ++ii) {
ruda->ud_dsinit = ruda->ud_esinit = ruda->ud_ssinit = rsp_seg;
ruda->ud_csinit = rsp_seg + (grpseek(fr,GTYPDATA)>>4);
rhdr->rs_ncopies = ii;
if( rspname ) /* do we need to insert a modfied name? */
putname(rpd->pd_name,rspname,ii);
rhdr->rs_link = rsp_last; /* link together the list */
rsp_last = rsp_seg; /* remember this for next time */
write(fns,rh,RHDRSIZE); /* write out the RSP header */
rsp_seg += RHDRPGPHS + xferpart_grp(fr,GTYPDATA,RHDRPGPHS);
rsp_seg += xferpart_grp(fr,GTYPCODE,0);
}
}
/**************************************************************************/
xfer_pure_rsp(fr,ncs) /* (many) data segs and one code segs */
WORD fr; /* file desc of RSP file */
WORD ncs; /* number of copies */
{
WORD ii; /* counter */
ruda->ud_csinit = rsp_seg + (1+ncs) * (grpseek(fr,GTYPDATA) >> 4);
for( ii=0; ii<=ncs; ++ii) {
ruda->ud_dsinit = ruda->ud_esinit = ruda->ud_ssinit = rsp_seg;
rhdr->rs_ncopies = ii;
if( rspname ) /* do we need to insert a modfied name? */
putname(rpd->pd_name,rspname,ii);
rpd->pd_mem = 8; /* magic ptr to md in rsphdr */
rhdr->rs_link = rsp_last; /* link together the list */
rsp_last = rsp_seg; /* remember this for next time */
write(fns,rh,RHDRSIZE); /* write out the RSP header */
rsp_seg += RHDRPGPHS + xferpart_grp(fr,GTYPDATA,RHDRPGPHS);
}
rsp_seg += xferpart_grp(fr,GTYPCODE,0);
}
/**************************************************************************/
xfer_mixed_rsp(fr,ncs) /* (many) mixed code/data segs */
WORD fr; /* file desc of RSP file */
WORD ncs; /* number of copies */
{
WORD ii; /* counter */
for( ii=0; ii<=ncs; ++ii) {
ruda->ud_csinit = ruda->ud_dsinit = ruda->ud_esinit =
ruda->ud_ssinit = rsp_seg;
rhdr->rs_ncopies = ii;
if( rspname ) /* do we need to insert a modfied name? */
putname(rpd->pd_name,rspname,ii);
rhdr->rs_link = rsp_last; /* link together the list */
rsp_last = rsp_seg; /* remember this for next time */
write(fns,rh,RHDRSIZE); /* write out the RSP header */
rsp_seg += RHDRPGPHS + xferpart_grp(fr,GTYPCODE,RHDRPGPHS);
}
}
/**************************************************************************/
putname(to,from,num)
BYTE *to;
BYTE *from;
WORD num;
{
BYTE buf[15];
BYTE *bp;
WORD jj;
for( bp=buf, jj=0; *from && *from != ' ' && jj<8; ++jj )
*bp++ = *from++;
if( jj>6 )
bp = buf+7;
sprintf(bp,"%x ",num);
for( bp=buf, jj=0; jj<8; jj++ )
*to++ = *bp++;
}
/************************************************************************/
/* dolbl: modify operating system version label */
/************************************************************************/
#define MAXLBL 80
BYTE *
dolbl(txt,lbtitle)
BYTE *txt; /* cmd val */
BYTE *lbtitle;
{
DLIST *sl, *psl; /* ptrs to system labels */
BYTE mb[MAXLBL]; /* max size of each line */
EXTERN BYTE *clearit;
sl = psl = syslbls; /* init ptrs */
printf("%s\n%s\n",clearit,lbtitle);
printf("Current message is:\n");
if( syslbls==NULLPTR )
printf("<null>\n");
else for( ; sl != NULLPTR; sl = (psl=sl)->dlnext )
printf("%s\n",sl->dlname);
printf("\nAdd lines to message. Terminate by entering only RETURN:\n");
FOREVER {
if( gets(mb) != mb || *mb==NULL )
break;
sl = (DLIST *)malloc(sizeof(*sl)); /* alloc a list item */
sl->dlname = malloc(sizeof(mb));
strcpy(sl->dlname,mb); /* copy message to new space */
sl->dlnext = NULLPTR;
if( psl==NULLPTR ) /* new list? */
syslbls = psl = sl; /* this will be the first line */
else {
psl->dlnext = sl;
psl = psl->dlnext;
}
}
return NULLPTR;
}
/************************************************************************/
/* writelbl: writes the OS label to the NEWSYS file, returning the length
/* of the label (in pgphs)
/************************************************************************/
WORD
_wrlbl(str) /* subroutine to writelbl */
BYTE *str;
{
REG WORD slen;
slen=strlen(str); /* length of string to be written */
write(fns,str,slen); /* write string to file NEWSYS */
write(fns,"\015\012",2); /* cr,lf */
return slen+2;
}
WORD
writelbl() /* returns num pgphs written */
{
REG WORD cc; /* count of chars output */
DLIST *sl; /* list ptr */
cc = 0;
cc += _wrlbl(""); /* crlf */
cc += _wrlbl(version); /* write out the version label */
cc += _wrlbl(copyright); /* followed by copyright notice */
for( sl=syslbls; sl!=NULLPTR; sl=sl->dlnext )
cc += _wrlbl(sl->dlname); /* followed by all lines in OS label */
cc += _wrlbl("$"); /* terminate message for printstr fn */
return padwrite(cc); /* writes enough zeroes to pad to pgph bdry */
}
/***************************************************************************/
/* fixup routines: remembers and posthumously patches the SYS file
/***************************************************************************/
FIX *fixroot = NULLPTRI; /* list of fixes */
fixlater(fa,ft,fp) /* records the fix in the list */
LONG fa; /* addr within NEWSYS to fix */
WORD ft; /* type of fix: F_ADD or F_PUT */
WORD *fp; /* ptr to val used in fixing */
{
FIX *fx;
fx = (FIX *)malloc(sizeof *fx); /* alloc a list item */
fx->f_addr = fa;
fx->f_type = ft;
fx->f_ptr = fp;
fx->f_next = fixroot; /* insert at head of list */
fixroot = fx;
}
fixfile() /* does the fixes in the file */
{
FIX *fx;
WORD fval; /* the value to stuff */
LONG lastval;
lastval=lseek(fns,0L,2);
for( fx=fixroot; fx!=NULLPTR; fx = fx->f_next ) {
if(fx->f_addr > lastval) {
printf("fixfile: %X %x %x\n",fx->f_addr,fx->f_type,fx->f_ptr);
continue;
}
if( lseek(fns,fx->f_addr,0) < 0L )
CRASH("fixup seek failure\n");
if( fx->f_type == F_ADD ) { /* F_ADD the value to what's there */
read(fns,&fval,2);
fval += *(fx->f_ptr);
lseek(fns,-2L,1); /* backup to write */
} else /* must be a F_PUT */
fval = *(fx->f_ptr);
write(fns,&fval,2);
}
}
/************************************************************************/
/************************************************************************/
/* edsdisk - This module exports the following routines:
/*
/* initxios_info(xf,goff) 'xf' is XIOSMOD file descriptor, 'goff'
/* is offset of data group in XIOSMOD (including header);
/* this module inits the buffering info questions.
/* doxbufs(txt,title) 'txt' is a command, 'title' is the prompt for this fn;
/* this routine is called within the MENU module, and prompts user
/* for xios info.
/* xiosvalid() returns a BOOLEAN value indicating whether the xios info
/* is valid.
/* genxios(doffset) generates the buffers for the xios, starting at 'doffset'
/* in the system data area.
/* fixupxios_info() writes DPH fixups required by genxios
/**************************************************************************/
/**************************************************************************/
#ifndef MAINMODULE
#include <genccpm.h>
#endif
/**************************************************************************/
/* edsdisk.h : defines the data structures used in this module
/**************************************************************************/
#define ADDR UWORD /* Address (offset) within SysDat */
#define SEG UWORD /* Segment address (may be outside SysDat) */
#define DPH struct dph_item
DPH { /* Disk Parameter Header structure */
ADDR dph_xlt; /* Translation Table Address */
BYTE dph_space[6]; /* reserved & Media Flag */
ADDR dph_dpb; /* Disk Parameter Block Address */
ADDR dph_csv; /* CheckSum Vector Address */
ADDR dph_alv; /* Allocation Vector Address */
ADDR dph_dirbcb; /* Dir Buffer Control Block Header Address */
ADDR dph_datbcb; /* Data Buffer Control Block Header Address */
SEG dph_hstbl; /* Hash Table Segment */
};
#define DPB struct dpb_item
DPB { /* Disk Parameter Block structure */
WORD dpb_spt; /* Sectors Per Track */
BYTE dpb_bsh; /* Allocation Block Shift Factor */
BYTE dpb_blm; /* Allocation Block Mask */
BYTE dpb_exm; /* Extent Mask */
WORD dpb_dsm; /* Disk Storage Maximum */
WORD dpb_drm; /* Directory Maximum */
WORD dpb_dav; /* Directory Allocation Vector */
WORD dpb_cks; /* Checksum Vector Size */
WORD dpb_off; /* Track Offset */
WORD dpb_psh; /* Physical Record Shift Factor */
WORD dpb_phm; /* Physical Record Mask */
};
#define BCBH struct bcbh_item
BCBH { /* Buffer Control Block Header structure */
ADDR bcbh_lr; /* BCB List Root */
BYTE bcbh_pm; /* BCB Process Max */
};
#define BCB struct bcb_item
BCB { /* Buffer Control Block structure */
BYTE bcb_drv; /* Drive */
BYTE bcb_record[3]; /* Record Number */
BYTE bcb_wflg; /* Write Pending Flag */
BYTE bcb_seq; /* Sequential Access Counter */
WORD bcb_track; /* Logical Track Number */
WORD bcb_sector; /* Logical Translated Sector Number */
UWORD bcb_bufptr; /* Buffer Offset (for DIRBCB) / Segment (for DATBCB) */
ADDR bcb_link; /* Link to next BCB */
WORD bcb_pdadr; /* Process Descriptor Address */
};
#define DINFO struct dirbuf_information
DINFO {
BOOLEAN d_modified; /* DPH was modified? */
BOOLEAN d_hashing; /* user wants hashing? */
WORD d_ndirbs; /* Num dir buffers */
WORD d_sdirbs; /* Size dir buffers */
WORD d_pmdirbs; /* Process Max Number Dir Buffs */
WORD d_ndatbs; /* Num data buffers */
WORD d_sdatbs; /* Size data buffers */
WORD d_pmdatbs; /* Process Max Number Dir Buffs */
WORD d_shash; /* Size of hash table */
WORD d_alvsize; /* size of Alloc Vector area (in bytes ) */
WORD d_blksize; /* size of disk Allocation Block */
WORD d_csvsize; /* size of Checksum Vector area */
};
/* end of edsdisk.h ********************************************************/
/***************************************************************************/
WORD csfd; /* command file descriptor */
WORD csgoff; /* group offset within command file */
cseek(offs) /* seek offset within Command File */
ADDR offs;
{
lseek(csfd,(LONG) offs+csgoff, 0); /* compensate for cmd header */
}
/***************************************************************************/
/* following is temporary!! change to zero after debugging */
#define ZBYTE (doffset&0xFF) /* the byte usually passed in */
WORD
bufwrite(size,byt)
WORD size;
BYTE byt;
{
WORD ss;
for( ss=size; ss>0; --ss )
write(fns,&byt,1);
return size;
}
/***************************************************************************/
/* Module local variables */
#define DPHNUM 16 /* number of possible disks */
ADDR *dphtab; /* table of offsets of Disk Parm Hdrs */
DPH *dh[DPHNUM]; /* table of Disk Parm Hdrs */
DINFO *di[DPHNUM]; /* table of info on DPHs */
/* Module local predicates */
#define ASKFOR(aa) ((aa) == 0xFFFF) /* Is this one we're sposed to ask for? */
#define SHRMSK 0x8000 /* Is this shared with another drive? */
#define SHARED(bb) ((bb)!=0xFFFF && (bb) & SHRMSK) /* Is this nd??bs field shared with another disk? */
#define GETSHARED(cc) ((cc) & ~SHRMSK) /* Get the drive we share with */
/***************************************************************************/
/* EXPORT
/* initxios_info: gets whatever information GENSYS needs from xios
/***************************************************************************/
initxios_info(xf,goff) /* get info from xios file */
WORD xf; /* xios file descriptor */
WORD goff; /* group offset within xios file */
{
REG WORD ii; /* counter */
DPB dd; /* a place to keep this info */
DPH *dph;
DINFO *dinf;
csfd = xf; /* assign to global: set up cseek */
csgoff = goff; /* assign to global */
cseek(XTABLOC); /* go to where the XIOSTAB info is */
read(xf,&xt,sizeof xt); /* read in the xios info */
dphtab = xt.xt_dphtab; /* point to disk parm header table */
for( ii=0; ii<DPHNUM; ++ii ) { /* for each dph pointer */
if( dphtab[ii] == 0 ) { /* is there a dph? */
dh[ii]=NULLPTR;
di[ii]=NULLPTR; /* no tickee, no washee */
} else { /* aha! let's set up this info */
dh[ii] = (DPH *)malloc(sizeof(DPH));
di[ii] = (DINFO *)malloc(sizeof(DINFO));
zfill(di[ii],sizeof(DINFO));
cseek(dphtab[ii]);
read(xf,dh[ii],sizeof(DPH));
}
} /* end of reading dph */
for( ii=0; ii<DPHNUM; ++ii ) /* let's go thru it again */
if( dh[ii] ) { /* if there's something there */
dph = dh[ii];
dinf = di[ii];
cseek(dph->dph_dpb); /* point to the disk parm block */
read(xf,&dd,sizeof(DPB));
dinf->d_blksize = 128 << dd.dpb_psh;
dinf->d_csvsize = 0x7FFF & dd.dpb_cks;
dinf->d_alvsize = (dd.dpb_dsm/8 + 1) * 2;
dinf->d_shash = 4 * (1 + dd.dpb_drm);
dinf->d_ndirbs = -1; /* ask for these by name! */
dinf->d_ndatbs = -1;
dinf->d_hashing = TRUE; /* default to hashing */
} /* end of drive info init */
}
/************************************************************************/
/* EXPORT
/* doxbufs: queries user for BDOS buffering info;
/* exits only when all data valid
/************************************************************************/
BYTE *
doxbufs(txt,bdtitle)
BYTE *txt;
BYTE *bdtitle;
{
BYTE cmds[CMDSLEN];
BOOLEAN xiosvalid();
EXTERN BYTE *clearit;
FOREVER {
printf("%s",clearit); /* clear screen */
printf("%s\n",bdtitle);
dbufs_display(); /* display */
printf("Drive (<CR> to exit) ? ");
if( gets(cmds)!=cmds || *cmds==NULL ) { /* they hit <CR>? */
if( xiosvalid() ) break;
USERR("Please correct drive buffers information\n");
press_return();
continue;
}
askabout(cmds); /* go do what they want */
}
return NULLPTR; /* error msg for menu handler */
}
/************************************************************************/
/* dbufs_display: display disk buffering info
/************************************************************************/
dbufs_display()
{
REG WORD ii, jj, tot; /* counters */
DPH *dph;
DINFO *dinf;
tot = 0; /* init this */
dcalcsizes(); /* check all the sizes */
printf("\n\t*** Disk Buffering Information ***\n");
printf(" Dir Max/Proc Data Max/Proc Hash Specified\n");
printf("Drv Bufs Dir Bufs Bufs Dat Bufs -ing Buf Pgphs\n");
printf("=== ==== ======== ==== ======== ==== =========\n");
for( ii=0; ii<DPHNUM; ++ii ) { /*** for each drive ***/
if( dphtab[ii]==0 ) continue; /* no DP Hdr for this drive */
dph = dh[ii]; dinf = di[ii];
printf(" %c: ",'A'+ii); /* print which drive */
dspdnums(dph->dph_dirbcb,dinf->d_ndirbs,dinf->d_pmdirbs);
dspdnums(dph->dph_datbcb,dinf->d_ndatbs,dinf->d_pmdatbs);
if( ! ASKFOR(dph->dph_hstbl) )
printf(" fixed ");
else if( dinf->d_hashing )
printf(" yes ");
else printf(" no ");
jj = dspdsize(dph,dinf);
if( jj == -2 )
printf(" fixed ");
else if( jj == -1 )
printf(" ?? ");
else {
printf(" %4.4x ",jj >> 4);
tot += jj;
}
printf("\n");
} /*** end for each drive ***/
printf("Total paragraphs allocated to buffers: %x\n",tot >> 4);
}
/***************************************************************************/
/* dspdsize: calculates a drive's user-requestable buffer size, in bytes
/***************************************************************************/
WORD
dspdsize(dph,dinf) /* calculate size requested */
DPH *dph; /* returns -1 if still needs info */
DINFO *dinf; /* returns -2 if pre-allocated */
{
REG WORD siz;
siz=0;
if( !ASKFOR(dph->dph_dirbcb) &&
!ASKFOR(dph->dph_datbcb) &&
!ASKFOR(dph->dph_hstbl) )
return -2; /* nothing to say here */
if( ASKFOR(dph->dph_dirbcb) ){
if( ASKFOR(dinf->d_ndirbs) )
return -1;
if( !SHARED(dinf->d_ndirbs) )
siz += dinf->d_sdirbs * dinf->d_ndirbs;
}
if( ASKFOR(dph->dph_datbcb) ){
if( ASKFOR(dinf->d_ndatbs) )
return -1;
if( !SHARED(dinf->d_ndatbs) )
siz += dinf->d_sdatbs * dinf->d_ndatbs;
}
if( ASKFOR(dph->dph_hstbl) ){
if( dinf->d_hashing )
siz += dinf->d_shash;
}
return siz;
}
/***************************************************************************/
/* dspdnums: displays the data/dir buf numbers
/***************************************************************************/
dspdnums(nfix,ninput,npm) /* display subroutine */
WORD nfix;
WORD ninput;
WORD npm;
{
if( !ASKFOR(nfix) )
printf("fixed ");
else if( SHARED(ninput) )
printf("shares %c: ",'A'+GETSHARED(ninput));
else {
if( ASKFOR(ninput) )
printf(" ?? ");
else printf(" %2.2x ",ninput);
if( ASKFOR(npm) )
printf(" ?? ");
else printf(" %2.2x ",npm);
}
}
/***************************************************************************/
/* dcalcsizes: calculates buffer sizes across shared buffers
/***************************************************************************/
dcalcsizes() /* make sure all the sizes are correct */
{
REG WORD ii, jj;
REG WORD *pkk;
DPH *dph;
DINFO *dinf;
for( ii=0; ii<DPHNUM; ++ii ) /* init all sizes to zero */
if(dphtab[ii]) {
dinf = di[ii];
dinf->d_sdirbs = dinf->d_sdatbs = 0;
}
for( ii=0; ii<DPHNUM; ++ii ) /* for each drive */
if(dphtab[ii]) {
dph = dh[ii];
dinf = di[ii];
if( ASKFOR(dph->dph_dirbcb) ) /* max out the size of a dirbuf */
if( !ASKFOR(dinf->d_ndirbs) ) { /* if it's real data there */
if( SHARED(dinf->d_ndirbs) ) {
jj = GETSHARED(dinf->d_ndirbs);
pkk = & ((di[jj])->d_sdirbs);
} else
pkk = & dinf->d_sdirbs;
if( dinf->d_blksize > *pkk ) /* assign the maximum size found */
*pkk = dinf->d_blksize;
}
if( ASKFOR(dph->dph_datbcb) ) /* max out the size of a data buf */
if( !ASKFOR(dinf->d_ndatbs) ) {
if( SHARED(dinf->d_ndatbs) ) {
jj = GETSHARED(dinf->d_ndatbs);
pkk = & ((di[jj])->d_sdatbs);
} else
pkk = & dinf->d_sdatbs;
if( dinf->d_blksize > *pkk )
*pkk = dinf->d_blksize;
}
}
}
/***************************************************************************/
/* ask user about a drive
/***************************************************************************/
askabout(drspec) /* ask user about a drive */
BYTE *drspec;
{
REG WORD dr;
DPH *dph;
DINFO *dinf;
BOOLEAN askhash();
if( *drspec == '*' ) {
askstar(); /* get info, apply to all disks */
return;
}
dr = toupper(*drspec) - 'A'; /* which drive do they want to fix? */
if( dr<0 || dr>=DPHNUM || dphtab[dr]==0 || drspec[1] != ':') {
USERR("Problem with '%s':\n",drspec);
USERR("Please specify an existing drive between 'A:' and 'P:'\n");
press_return();
return;
}
dph = dh[dr];
dinf = di[dr];
if( dspdsize(dph,dinf) == -2 ) { /* is there anything to modify? */
USERR("All buffers for %c: are fixed within the XIOS module.\n",
dr+'A');
USERR("You can't modify this fixed information in GENSYS.\n");
press_return();
return;
}
if( ASKFOR(dph->dph_dirbcb) ){
dinf->d_ndirbs = asknd(1,FALSE); /* get directory info */
dinf->d_pmdirbs = askpm(1,dinf->d_ndirbs);
}
if( ASKFOR(dph->dph_datbcb) ){
dinf->d_ndatbs = asknd(2,(128==dinf->d_blksize)); /* get data info */
dinf->d_pmdatbs = askpm(2,dinf->d_ndatbs);
}
if( ASKFOR(dph->dph_hstbl) ){
dinf->d_hashing = askhash();
}
}
/****************************************************************************/
/* askstar: asks buffering questions & applies to all ASKFOR/unanswered drives
/****************************************************************************/
askstar()
{
REG WORD dr;
DPH *dph;
DINFO *dinf;
WORD andirbs, andirpms, andatbs, andatpms;
BOOLEAN ahash, askhash();
andirbs = asknd(1,FALSE); /* Number of directory buffers? */
andirpms = askpm(1,andirbs); /* Process Max Dir Bufs? */
andatbs = asknd(2,FALSE); /* Number of data buffers? */
andatpms = askpm(2,andatbs); /* Process Max Data Bufs? */
ahash = askhash(); /* Hashing? */
for( dr=0; dr<DPHNUM; ++dr )
if( dphtab[dr] ) { /* for all existing drives */
dph = dh[dr]; dinf = di[dr];
if( ASKFOR(dph->dph_dirbcb) )
if( ASKFOR(dinf->d_ndirbs) ) {
dinf->d_ndirbs = andirbs;
dinf->d_pmdirbs = andirpms;
}
if( ASKFOR(dph->dph_datbcb) )
if( ASKFOR(dinf->d_ndatbs) ) {
dinf->d_ndatbs = andatbs;
dinf->d_pmdatbs = andatpms;
}
if( ASKFOR(dph->dph_hstbl) )
dinf->d_hashing = ahash;
}
}
/***************************************************************************/
/* asknd: ask the user for the number of dir/data buffers
/***************************************************************************/
WORD
asknd(type,zero_ok)
WORD type; /* 1=dir, 2=data */
BOOLEAN zero_ok;
{
REG WORD val, jj;
BYTE *name;
BYTE cmds[CMDSLEN];
DPH *dph;
if( type==1 ) name="directory"; else name="data";
FOREVER {
printf("Number of %s buffers, or drive to share with ? ",name);
gets( cmds );
if( cmds[1] != ':' ) {
val = atoih(cmds);
if( val > 0 && val <= 127 ) break;
if(*cmds == '0') {
if( zero_ok ) break;
USERR("Number of buffers must be greater than 0\n");
press_return();
continue;
}
} else {
val = toupper(*cmds) - 'A'; /* which drive do they want? */
if( val>=0 && val<DPHNUM && dphtab[val]!=0) { /* a drive maybe? */
dph = dh[val];
if( type==1 ) jj = dph->dph_dirbcb;
else jj = dph->dph_datbcb;
if( ASKFOR(jj) ) {
if( type==1 ) jj = di[val]->d_ndirbs;
else jj = di[val]->d_ndatbs;
if( !SHARED(jj) ) {
val |= SHRMSK; /* turn on sharing */
break;
}
}
USERR("Drive %c: is not available for sharing\n",'A'+val);
press_return();
continue;
}
}
USERR("Please input a number, or an existing drive from 'A:' to 'P:'\n");
press_return();
}
return val;
}
/************************************/
/* askpm: ask about process maximum
/************************************/
WORD
askpm(type,pmmax)
WORD type;
WORD pmmax;
{
REG WORD val;
BYTE *cmds[CMDSLEN];
BYTE *name;
switch(type) { case 1: name="directory"; break; case 2: name="data"; }
if( SHARED(pmmax) || pmmax<=0 )
return 0;
FOREVER { /* get input from user */
printf("Maximum %s buffers per process [%x]? ",name,pmmax);
gets( cmds );
if( *cmds==NULL )
val = pmmax; /* default value */
else val = atoih(cmds);
if( val > 0 && val <= pmmax ) break;
USERR("Maximum must be > zero and <= %x\n",pmmax);
press_return();
}
return val;
}
/*****************************************/
/* askhash: ask user if they'd like to hash
/*****************************************/
BOOLEAN
askhash()
{
REG WORD val;
BYTE *cmds[CMDSLEN], *cp;
FOREVER {
printf("Hashing [yes] ? ");
gets( cmds );
if( *cmds == NULL )
return TRUE;
for( cp=cmds; *cp; ++cp ) {
if( *cp==' ' || *cp=='\t' ) {
*cp = NULL;
break;
}
if( isupper(*cp) )
*cp = tolower(*cp);
}
if( (val=whichof(cmds,",yes,true,on,hashing,no,false,off")) > 0 )
break;
USERR("Please answer 'hashing', 'yes', or 'no'.\n");
press_return();
}
return val<=4; /* TRUE iff answer was one of 1st four */
}
/************************************************************************/
/* EXPORT
/* xiosvalid: validates that all the user-requestable info has been filled in
/************************************************************************/
BOOLEAN
xiosvalid()
{
REG WORD ii;
REG WORD ndph;
ndph = 0;
for( ii=0; ii<DPHNUM; ++ii )
if( dphtab[ii]!=0 ) {
if( dspdsize(dh[ii],di[ii]) == -1 )
return FALSE;
++ndph;
}
if( ndph==0 ) {
USERR("no dph information in xios header...");
exit(1);
}
return TRUE;
}
/***************************************************************************/
/* EXPORT
/* genxios: generates disk buffers (to be placed after the rest of the
/* system tables.
/*************************************************************************/
#define OFF_BCBPTR 0xA
#define OFF_DPHHTAB 0x12
ADDR locrsvd_off; /* local reserved offset, for DIRBUF fix */
ADDR /* returns final offset */
genxios(doffset) /* generate the disk buffers */
ADDR doffset; /* offset in data file */
{
REG WORD ii, jj; /* counter */
REG BOOLEAN dm; /* modified flag */
REG ADDR lastlink; /* used for threading lists */
ADDR locbufs_off; /* local buffer offset for DIRBUF grouping */
LONG dmagic; /* where word needing fix goes into file */
BCB bcb; /* place for organizing, calc for fixups */
BCBH bcbh;
DPH *dph;
DINFO *dinf;
BOOLEAN xiosvalid();
if( !xiosvalid() ) CRASH("invalid disk buffer information");
for( ii=0; ii<DPHNUM; ++ii ) /* allocate CHECK SUM VECTORS */
if( dh[ii] ) { /* if there's something to look at */
dph = dh[ii]; /* convenient ptr */
dinf = di[ii];
if( ASKFOR(dph->dph_csv) ){
dinf->d_modified = TRUE;
if( dinf->d_csvsize == 0 )
dph->dph_csv=0;
else {
dph->dph_csv = doffset;
doffset += bufwrite(dinf->d_csvsize,ZBYTE);
}
}
}
for( ii=0; ii<DPHNUM; ++ii ) /* allocate ALLOCATION TABLE VECTORS */
if( dh[ii] ) { /* if there's something to look at */
dph = dh[ii]; /* convenient ptr */
dinf = di[ii];
if( ASKFOR(dph->dph_alv) ){
dinf->d_modified = TRUE;
dph->dph_alv = doffset;
doffset += bufwrite(dinf->d_alvsize,ZBYTE);
}
}
locbufs_off = 0; /* amount (bytes) of local dir buffer*/
for( ii=0; ii<DPHNUM; ++ii ) /* allocate DIR BCBs & BUFFERS */
if( dh[ii] ) { /* if there's something to look at */
dph = dh[ii]; /* convenient ptr */
dinf = di[ii];
if( ASKFOR(dph->dph_dirbcb) ){ /* DIR BCBs */
dinf->d_modified = TRUE;
if( ! SHARED(dinf->d_ndirbs) ) { /* take care of sharing later */
lastlink=0; /* linker */
zfill(&bcb,sizeof(BCB)); /* init to zeroes */
bcb.bcb_drv = 0xFF;
for( jj=dinf->d_ndirbs; jj>0; --jj ){
bcb.bcb_link = lastlink;
/* pts to loc of buffer relative to locrsvd_off */
bcb.bcb_bufptr = locbufs_off;
locbufs_off += dinf->d_sdirbs; /* increase buf size */
/* calc where bcb will be written to, for fixlater */
dmagic = lseek(fns,0L,1) + OFF_BCBPTR;
fixlater(dmagic,F_ADD,&locrsvd_off);
/* finally, write out the bcb info */
lastlink = doffset; /* point to the bcb */
doffset += datwrite(&bcb,sizeof bcb);
}
bcbh.bcbh_lr = lastlink; /* fill in the bcb hdr */
bcbh.bcbh_pm = dinf->d_pmdirbs;
dph->dph_dirbcb = doffset; /* link to head of list */
/* write out a buffer control block hdr */
doffset += datwrite(&bcbh,sizeof bcbh);
}
}
}
for( ii=0; ii<DPHNUM; ++ii ) /* allocate DATA BCBs & BUFFERS */
if( dh[ii] ) { /* if there's something to look at */
dph = dh[ii]; /* convenient ptr */
dinf = di[ii];
/* the bufs can go out of the system page, but the bcbs need to be in */
if( ASKFOR(dph->dph_datbcb) ){ /* DATA BCBs: !!temporary!! */
dinf->d_modified = TRUE;
if( ! SHARED(dinf->d_ndatbs) ) { /* do sharing later */
lastlink=0; /* linker */
zfill(&bcb,sizeof(BCB)); /* init to zeroes */
bcb.bcb_drv = 0xFF;
for( jj=dinf->d_ndatbs; jj>0; --jj ){
bcb.bcb_link = lastlink;
bcb.bcb_bufptr = bufs_seg; /* point into reserved area */
bufs_seg += (dinf->d_sdatbs) >>4; /* cvt to pgphs */
/* calculate where the bcb.bcb_bufptr will be written in file */
dmagic = lseek(fns,0L,1) + OFF_BCBPTR;
fixlater(dmagic,F_ADD,&rsvd_seg); /* fix the bufptr */
lastlink = doffset;
/* write out a buffer control block */
doffset += datwrite(&bcb,sizeof bcb);
}
bcbh.bcbh_lr = lastlink; /* fill in the bcb hdr */
bcbh.bcbh_pm = dinf->d_pmdatbs;
dph->dph_datbcb = doffset; /* link to head of list */
/* write out a buffer control block hdr */
doffset += datwrite(&bcbh,sizeof bcbh);
}
}
}
/* now write the local directory buffers */
locrsvd_off = doffset; /* address of directory buffer area */
doffset += bufwrite(locbufs_off,ZBYTE); /* write out the buffers */
/* dmagic: magic number to add to dphtab[ii] */
dmagic = OFF_DPHHTAB + fldstart;/* where in file does SYSDAT start */
for( ii=0; ii<DPHNUM; ++ii ) /* allocate HASH TABLES */
if( dh[ii] ) { /* if there's something to look at */
dph = dh[ii]; /* convenient ptr */
dinf = di[ii];
if( ASKFOR(dph->dph_hstbl) ) { /* HASH TABLE ALLOC */
dinf->d_modified = TRUE;
if( dinf->d_hashing ) {
dph->dph_hstbl = bufs_seg; /* point into reserved area */
bufs_seg += (dinf->d_shash) >>4; /* cvt bytes to pgphs */
/* remember where the dph_hstbl word will be stored */
/* so we can adjust bufs_seg by starting loc of rsvd_seg */
fixlater(dmagic+dphtab[ii],F_ADD,&rsvd_seg);
} else dph->dph_hstbl = 0;
}
} /**** end of processing ****/
for( ii=0; ii<DPHNUM; ++ii ) /* resolve shared buffers */
if( dh[ii] ) {
if( ASKFOR(dh[ii]->dph_dirbcb) ) {
jj = GETSHARED(di[ii]->d_ndirbs);
dh[ii]->dph_dirbcb = dh[jj]->dph_dirbcb;
}
if( ASKFOR(dh[ii]->dph_datbcb) ) {
jj = GETSHARED(di[ii]->d_ndatbs);
dh[ii]->dph_datbcb = dh[jj]->dph_datbcb;
}
} /* end resolve shared buffers */
return doffset;
}
/***************************************************************************/
/* EXPORT
/* fixupxios_info: does the fixup for the dph info in the xios
/*************************************************************************/
fixupxios_info() /* call from fixups */
{
REG WORD ii; /* counter */
REG LONG dmagic; /* addr var */
for( ii=0; ii<DPHNUM; ++ii )
if( di[ii]->d_modified ) {
dmagic = fldstart + dphtab[ii];
lseek(fns,dmagic,0); /* where to write to */
write(fns,dh[ii],sizeof(DPH)); /* what to write */
}
}
/**************************************************************************/
/**************************************************************************/
/* M E N U handling routines
/*
/* Written by Bill Fitler
/**************************************************************************/
/**************************************************************************/
#ifndef MAINMODULE
#include <portab.h>
#include <stdio.h>
#include <menu.h>
EXTERN BOOLEAN verbose; /* flag: be wordy */
#endif
MLOCAL BOOLEAN eflag = FALSE; /* user error */
/**************************************************************************/
/* bldmenu: builds a menu list from successive calls
/**************************************************************************/
MENU *
bldmenu(muroot,typ,ptr,name,description)
MENU *muroot; /* root of menu list (or NULLPTR) */
WORD typ; /* type of menu item */
BYTE *ptr; /* pointer to something... */
BYTE *name; /* command name for this menu item */
BYTE *description; /* long label for this item */
{
REG MENU *mu; /* ptr to created item */
REG MENU *tmu; /* temp ptr for linked list scan */
mu = (MENU *)malloc(sizeof(*mu)); /* allocate memory for item */
mu->mutype = typ;
mu->muiptr = ptr;
mu->muname = name;
mu->mudesc = description;
mu->munext = NULLPTR;
if( muroot == NULLPTR ) /* if NULL list */
return mu; /* return something to start with */
for( tmu=muroot; tmu->munext != NULLPTR; tmu = tmu->munext )
; /* append to end of list */
tmu->munext = mu;
return muroot; /* keep list in order */
}
/**************************************************************************/
/* domenu: executes the specified commands (in cbuf) from the menu (mnu)
/**************************************************************************/
#define CMDLEN 80
#define USERR ++eflag;printf
#define ECHK(fn) _errchk(fn,cmd,cmdval)
VOID
domenu(cbuf,mnu)
BYTE *cbuf; /* command buffer */
MENU *mnu; /* table of menu specs */
{
REG MENU *mi; /* ptr to menu item */
LOCAL BYTE cmd[CMDLEN]; /* place for command & value */
LOCAL BYTE *cmdval; /* ptr within cmd */
LOCAL BYTE *cp; /* temp char ptr */
BYTE *msetbool(); /* set a boolean value */
BYTE *msetbyte(); /* set a numeric byte value */
BYTE *msetword(); /* set an integer pointer */
BYTE *msettxt(); /* set a text value */
BYTE *(*proc)(); /* procedure pointer */
BYTE *msetdrv(); /* set a drive value */
BYTE *_nxtcmd(); /* command parser */
MENU *_fndcmd(); /* command lookup */
eflag = FALSE; /* no errors yet */
while((cbuf=_nxtcmd(cbuf,cmd))){ /* while there are commands in cbuf */
cmdval = NULLPTR; /* init value ptr for command */
for( cp=cmd; *cp; cp++ ) { /* scan command for assign op */
if( isupper(*cp) ) /* convert all commands to LOWER CASE */
*cp = tolower(*cp);
if( *cp == '=' ) { /* found? */
*cp++ = NULL; /* terminate command */
cmdval = cp; /* point value to after assign op */
break; /* and terminate loop */
}
}
if( (mi=_fndcmd(cmd,mnu)) == NULLPTR ){ /* scan menu commands */
USERR("'%s' is not a command for this menu\n",cmd);
} else { /******** cmd loop ********/
switch(mi->mutype) { /* handle cmd type */
case MBOOL: /** BOOLEAN command **/
ECHK(msetbool(mi->muiptr,cmdval));
break;
case MBYTE: /** BYTE command **/
ECHK(msetbyte(mi->muiptr,cmdval));
break;
case MWORD: /** INTEGER command **/
ECHK(msetword(mi->muiptr,cmdval));
break;
case MTEXT: /** TEXT command **/
ECHK(msettxt(mi->muiptr,cmdval));
break;
case MPROC: /** PROCEDURAL command **/
proc = mi->muiptr; /* assign to function ptr */
ECHK(((*proc)(cmdval,mi->mudesc)));
break;
case MDRIV: /** DRIVE letter command **/
ECHK(msetdrv(mi->muiptr,cmdval));
break;
} /* end switch */
} /********* end cmd loop *********/
if(eflag) { /* user error? */
press_return();
*cbuf = NULL;
} else if(verbose) /* are we being wordy? */
prtmival(mi); /* let the user know what happened */
} /**** end while loop ****/
}
/* _nxtcmd: parses cin into cout */
BYTE *
_nxtcmd(cin,cout) /* returns ptr to after next cmd */
BYTE *cin; /* command in buf */
BYTE *cout; /* command out buf */
{
/***** handle quoted strings??? *****/
while( isspace(*cin) ) /* skip leading spaces */
++cin;
if( *cin == NULL ) /* check for EOS */
return NULLPTR;
while( *cin && !isspace(*cin) ) /* scan to eos or whitespace */
*cout++ = *cin++; /* xfer to command out buf */
*cout = NULL; /* null terminate command out buf */
return cin; /* return ptr to after command */
}
/* _fndcmd: scans thru menu structure 'mu' looking for command name 'cn' */
/* returns ptr to menu item or NULLPTR */
MENU *
_fndcmd(cn,mus)
BYTE *cn; /* command name */
MENU *mus; /* ptr to menu list */
{
REG WORD cnl; /* cmd name len */
MENU *musave; /* extra ptr to menu item */
cnl = strlen(cn);
for( ; ; mus = mus->munext) { /* scan menu list */
if( mus==NULLPTR ) /* if we hit the end then fail */
return NULLPTR;
if( strncmp(cn,mus->muname,cnl) == 0 ) /* cn prefix of name?*/
break; /* yes, we have a candidate */
}
musave = mus;
for( mus=mus->munext; ; mus=mus->munext ) { /* finish scanning list */
if( mus==NULLPTR ) /* if we hit the end then succeed */
return musave; /* we reached end of list: found it! */
if( strncmp(cn,mus->muname,cnl) == 0 )
return NULLPTR; /* another match: ambiguous command */
}
}
/* _errchk: checks for error returns on functions */
VOID
_errchk(emsg,cm,cmv)
BYTE *emsg; /* error message to check */
BYTE *cm; /* command generating the error */
BYTE *cmv; /* value generating the error */
{
if( emsg ) { /* non NULL error message return? */
USERR("Error on command '%s",cm);
if(cmv)
USERR("=%s",cmv);
USERR("': %s\n",emsg);
}
}
/* msetbool: sets the BOOLEAN pointed to by 'bp' according to value in 'cvp' */
BYTE * /* return NULLPTR, or ptr to err msg */
msetbool(bp,cvp)
BYTE *bp; /* pointer to boolean to set */
BYTE *cvp; /* pointer to value to set to */
{
REG WORD bv;
REG BYTE *tp;
if( cvp==NULLPTR ) /* no val: toggle boolean */
bv = (*bp ? 4 : 1); /* toggle by setting bv index */
else {
for( tp=cvp; *tp; ++tp )
if( isupper(*tp) ) *tp=tolower(*tp);
if( (bv=whichof(cvp,",on,yes,true,off,no,false"))==0 )
return "value must be 'yes' or 'no'";
}
if( bv < 4 )
*bp = -1; /* zap to 0xFFFF */
else *bp = 0; /* zap to zero */
return NULLPTR;
}
BYTE *
msetbyte(bp,cvp) /* set numeric BYTE value */
BYTE *bp; /* ptr to BYTE to set */
BYTE *cvp; /* value to set BYTE to */
{
REG WORD val; /* temp holding place */
val=0;
if(cvp != NULLPTR) val=atoih(cvp); /* assume numbers are in HEX!! */
if( cvp==NULLPTR || (val==0 && !isdigit(*cvp)) )
return "value must be a number";
if( val > 255 )
return "value must be less than FF hex (255 decimal)";
*bp = val;
return NULLPTR;
}
BYTE *
msetword(ip,cvp)
WORD *ip; /* ptr to WORD to set */
BYTE *cvp; /* value to set WORD to */
{
REG WORD val; /* temp holding place */
val=0;
if(cvp != NULLPTR) val=atoih(cvp); /* assume numbers are in HEX!! */
if( cvp==NULLPTR || (val==0 && !isdigit(*cvp)) )
return "value must be an unsigned hex number between 0 and FFFFh";
*ip = val;
return NULLPTR;
}
WORD
atoih(cp) /* conver ascii hex to word */
BYTE *cp; /* buffer number */
{
REG WORD v; /* resulting value */
REG BYTE cv; /* character value */
BYTE *savcp; /* save orig ptr */
v = 0; savcp = cp; /* init value */
for( cv = *cp; ; cv = *++cp ){ /* for each char in cp */
if( isdigit(cv) )
v = (v<<4) + (cv-'0'); /* convert digit and add */
else { /* maybe it's a letter */
if( isupper(cv) ) /* upper case letter? */
cv = tolower(cv); /* convert it */
if( cv<'a' || cv>'f') /* range check */
break; /* terminate loop if failed */
v = (v<<4)+(10+cv-'a'); /* convert letter and add */
}
}
if( cp-savcp <= 4 )
return v; /* return the value */
else {
*savcp |= 0x80;
return 0; /* turn on hi bit, make isdigit test fail */
}
}
BYTE *
msettxt(tp,cvp)
BYTE **tp; /* place to store ptr to value */
BYTE *cvp; /* value to set BYTEs to */
{
REG BYTE *tmp; /* temp ptr for allocated storage */
if( cvp==NULLPTR )
cvp=""; /* point to null string, instead */
tmp = malloc(1+strlen(cvp)); /* get space for string */
strcpy(tmp,cvp); /* copy to allocated space */
*tp = tmp; /* assign ptr */
return NULLPTR;
}
BYTE *
msetdrv(dp,cvp)
BYTE *dp; /* place to store ptr to value */
BYTE *cvp; /* value to set DRIVE to */
{
REG WORD v; /* work place */
if( cvp!=NULLPTR ) { /* check for drive letter */
if( isupper(*cvp) )
*cvp = tolower(*cvp);
v = *cvp - 'a'; /* convert drive spec to nibble */
}
if( cvp==NULLPTR || v<0 || v>15 || cvp[1] != ':' )
return "you must specify a drive 'A:' thru 'P:'";
*dp = v; /* looks okay, set it */
return NULLPTR; /* no errors */
}
/**************************************************************************/
/* prtmenu: displays the menu labels, values and descriptors
/**************************************************************************/
VOID
prtmenu(mtitle,mnu)
BYTE *mtitle; /* title of menu */
MENU *mnu; /* table specifying menu */
{
printf("\n\n%s\n",mtitle); /* give the menu a title */
for( ; mnu!=NULLPTR; mnu = mnu->munext ) /* travel down list */
prtmival(mnu);
}
prtmival(mnu) /* return ptr to value of item */
MENU *mnu; /* item to get value of */
{
REG BYTE *ival;
BYTE ivbuf[10]; /* local buf for display */
BYTE *vbp; /* value byte ptr */
WORD *vwp; /* value word ptr */
WORD v; /* place to put value */
printf("%12.12s ",mnu->muname); /* first the name */
ival = ivbuf; *ival = NULL; /* init value */
switch(mnu->mutype) { /* now the value */
case MBOOL:
if( *(mnu->muiptr) )
ival="[Y]";
else ival="[N]";
break;
case MBYTE:
vbp = mnu->muiptr;
v = (*vbp & 0xFF);
sprintf(ivbuf,"[%2.2x]",v); /* display in hex */
break;
case MWORD:
vwp = mnu->muiptr;
v = *vwp;
sprintf(ivbuf,"[%4.4x]",v); /* display in hex */
break;
case MTEXT:
vbp = *((BYTE **)mnu->muiptr); /* go get the char ptr */
if( strlen(vbp) > 4 )
sprintf(ivbuf,"[%-4.4s>",vbp);
else sprintf(ivbuf,"[%s]",vbp);
break;
case MPROC:
/* leave blank */
break;
case MDRIV:
sprintf(ivbuf,"[%c:]",'A'+(*mnu->muiptr));
break;
}
printf("%-6s ",ival);
printf("%s\n",mnu->mudesc); /* finally the description */
}
/************************************************************************
/* whichof: scans the string 'set' (delimited by 1st char in 'set')
/* for 1st occurrence of string 'sample'.
/* Returns 0 if 'sample' not a prefix of any item in set or if
/* 'sample' is a prefix of more than one item in set;
/* delimiter# o.w.
/* E.G. if set = ",on,yes,true,off,no,false" then
/* whichof("yes",set) == 2;
/* whichof("y",set) == 2;
/* whichof("o",set) == 0;
/* whichof("x",set) == 0;
/* NOTE: results not guaranteed if item delimiter (*set) is in string 'sample',
/* or if null item is in set (adjacent delimiters).
/*************************************************************************/
/* first, a subroutine: */
/* _wget: returns NULLPTR if sa not prefix of item in st; */
/* returns end of item (ptr in st) otherwise */
BYTE *_wget(sa,st,de)
BYTE *sa;
BYTE *st;
BYTE de;
{
BYTE *s2;
for( ;; ) { /* do forever */
for( s2=sa; *s2 && *s2 == *st; ){
++s2; ++st; /* try match */
}
if( *s2 == NULL ){ /* success! we've matched all of sa */
while( *st && *st != de ) ++st; /* adv to nxt delim */
return( --st ); /* backup one char */
}
while( *st && *st != de ) /* no match, look for next item */
++st; /* adv to nxt delim */
if( *st == NULL )
return( NULLPTR ); /* end of list */
++st;
}
}
WORD whichof(sample,set)
BYTE *sample;
BYTE *set;
{
WORD sx;
BYTE *sp, *np;
if( (sp=_wget(sample,set+1,*set)) == NULLPTR )
return 0; /* not found */
if( _wget(sample,sp+1,*set) != NULLPTR )
return 0; /* ambiguous */
for( sx=0, np=set; np<sp; np++ )
if( *np == *set ) sx++; /* count delimiters */
return sx;
}
/*******************************************************************/
/*******************************************************************/
/* misc.c:
/* some miscellaneous functions which belong in the system library */
/*******************************************************************/
/*******************************************************************/
#ifndef MAINMODULE
#include <portab.h>
#include <stdio.h>
#include <cpm.h> /* directory search support */
#endif
#define FCB struct fcbstruct
FCB {
BYTE fcbdr; /* drive */
BYTE fcbname[8]; /* name */
BYTE fcbext[3]; /* extension */
BYTE fcbrest[24]; /* all the rest */
};
#define FSEARCH(faddr) (bdos(17,faddr)&0xFF)
#define NSEARCH(faddr) (bdos(18)&0xFF) /* doesn't use FCB */
#define SETDMA(dma) bdos(26,dma) /* where to put dir info */
#define SECSIZE 128
#define AMASK 0x7F
/* dirsearch: returns a DLIST of names matching 'fs' */
DLIST * /* returns list of names found in */
dirsearch(fs) /* directory search for */
BYTE *fs; /* file spec */
{
FCB f, *fp; /* use this FCB */
REG WORD ret; /* ptr */
DLIST *_newdli(), *ls; /* list */
BYTE dmabuf[SECSIZE]; /* place for directory info */
fp = &f; /* everything else uses address */
parsefn(fs,fp); /* fill fcb with filespec */
SETDMA(dmabuf); /* tell em where to put it */
if( (ret=FSEARCH(fp)) > 3 ) /* look for first occurrence */
return NULLPTR; /* no luck */
ls=_newdli(dmabuf+(ret<<5),NULLPTR); /* start off a list */
while( (ret=NSEARCH(fp)) <= 3 ) { /* do all the search_nexts */
ls = _newdli(dmabuf+(ret<<5),ls); /* link them together */
}
return ls;
}
DLIST *
_newdli(f,lnk)
FCB *f;
DLIST *lnk;
{
REG WORD i;
BYTE *np, nb[15]; /* name buffer */
DLIST *newl; /* new list item */
/* make a pretty filename */
np = nb;
for( i=0; i<11; ++i ) /* zap out any high bits in filename */
f->fcbname[i] &= AMASK; /* mask off attribute bits */
for( i=0; i<8; ++i ) { /* handle name spec */
if( f->fcbname[i] == ' ' ) /* end of name? */
break; /* okay */
*np++ = f->fcbname[i]; /* o.w. stuff into name buffer */
}
*np++ = '.'; /* tack this on */
for( i=0; i<3; ++i ){ /* handle ext spec */
if( f->fcbext[i] == ' ' ) /* end of ext? */
break;
*np++ = f->fcbext[i];
}
*np++ = NULL; /* null terminate string */
/*************************************************************/
np = malloc(np-nb); /* save it away */
strcpy(np,nb); /* do the copy */
newl = (DLIST *)malloc(sizeof(*newl)); /* get ptr area set up */
newl->dlname = np;
newl->dlnext = lnk;
return newl;
}
parsefn(fs,f)
BYTE *fs; /* file spec */
FCB *f; /* fcb */
{
REG WORD i;
REG BYTE *cp;
for( cp=fs; *cp; cp++ ) /* make everything upper case */
if( islower(*cp) )
*cp = toupper(*cp);
for( i=0; i<24; ++i ) /* init fcb */
f->fcbrest[i] = 0;
if( *(fs+1) == ':' ) { /* drive spec? */
f->fcbdr = 1 + *fs - 'A'; /* 0=default, 1 = A:,... */
fs += 2; /* skip dr spec */
} else f->fcbdr = 0; /* default drive */
for( i=0; *fs && *fs != '.' && i<8; fs++, ++i ) { /* NAME. */
if( *fs == '*' ) { /* wildcard? */
for( ; i<8; ++i ) /* fill up rest of name */
f->fcbname[i]='?'; /* with search spec */
for( ; *fs && *fs!='.'; fs++ ) /* ignore to end or '.' */
;
break; /* terminate loop */
}
f->fcbname[i] = *fs;
}
for( ; i<8; ++i ) /* fill up rest of name */
f->fcbname[i] = ' '; /* with blanks */
for( ; *fs; fs++ ) /* skip rest of name */
if( *fs == '.' ) { /* end of name? */
fs++; break; /* yes, so exit this loop */
}
for( i=0; *fs && i<3; fs++,++i ) { /* .EXT */
if( *fs == '*' ){ /* wildcard */
for( ; i<3; ++i )
f->fcbext[i] = '?';
break;
}
f->fcbext[i] = *fs;
}
for( ; i<3; ++i ) /* fill up rest of ext */
f->fcbext[i] = ' '; /* with blanks */
}
/* access: tests for existence: return NULL if exist, -1 o.w. */
WORD
access(fn)
BYTE *fn;
{
FCB f; /* use this FCB */
BYTE dmabuf[SECSIZE]; /* place for directory info */
parsefn(fn,&f); /* fill fcb with filespec */
SETDMA(dmabuf); /* tell em where to put it */
if( FSEARCH(&f) > 3 ) /* look for first occurrence */
return -1; /* no luck */
return 0;
}
BYTE *
gets(s)
BYTE *s;
{
BYTE *sav;
if( fgets(s,32767,stdin) == NULLPTR )
return NULLPTR;
if( !isatty(0) ) /* reading from CON:? */
fputs(s,stdout); /* echo if not */
for( sav=s; *s && *s != '\n'; ++s )
;
*s = '\0';
return sav;
}
/************************************************************************/
BYTE
getdrive()
{
return bdos(25,0);
}
/************************************************************************/
/* press_return: let user look at screen */
press_return()
{
BYTE bitbucket[40]; /* leave room */
if( !isatty(0) ) { /* stdin from CON:? */
printf("Error in command file: terminating program\n");
exit(1);
}
printf("\07Press RETURN to continue ");
if( gets(bitbucket)!=bitbucket )
exit(1); /* eof, quit now */
}
/* patch: provides a patch area */
patch() /* should never get called */
{
int i;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
i=i+5; i=i+5; i=i+5; i=i+5; i=i+5;
return;
}
/*******************************************************************/
/*******************************************************************/
/* T H E E N D
/*******************************************************************/
/*******************************************************************/
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