/* Copyright 1990-2011, Jsoftware Inc.  All rights reserved. */
/* License in license.txt.                                   */
/*                                                                         */
/* Initializations                                                         */

#include "j.h"
#include "w.h"

#if SYS & SYS_FREEBSD
#include <floatingpoint.h>
#endif

J gjt=0; // JPF debug

void startup(void);

static A jtmakename(J jt,C*s){A z;I m;NM*zv;
 m=strlen(s);
 GA(z,NAME,m,1,0); zv=NAV(z);
 memcpy(zv->s,s,m); *(m+zv->s)=0;
 zv->m   =(UC)m; 
 zv->sn  =0; 
 zv->e   =0;
 zv->flag=NMDOT;
 zv->hash=NMHASH(m,s); 
 ACX(z);
 R z;
}

B jtglobinit(J jt){A x,y;C*s;D*d;I j;UC c,k;
 liln=1&&SYS&SYS_LILENDIAN;
 jt->adbreak=&breakdata; /* required for ma to work */
 meminit();  /* required for ma to work */
 jt->parsercalls=0;
 s=bitdisp; 
 DO(256, c=(UC)i;      DO(BB, *s++=c&(UC)128?'1':'0'; *s++=' '; c<<=1;);           );
 DO(16,  c=(UC)i; k=0; DO(BB, if(c&(UC)1)++k;                   c>>=1;); bitc[i]=k;);
 DO(15, j=1+i; DO(16, bitc[16*j+i]=bitc[j]+bitc[i];););
 MC(&inf, XINF,SZD); 
 MC(&jnan,XNAN,SZD);
 infm=-inf;
 memset(testb,C0,256);
 testb[CIF]=testb[CELSEIF]=testb[CSELECT]=testb[CWHILE]=testb[CWHILST]=testb[CFOR]=testb[CCASE]=testb[CFCASE]=1;
 num=9+numv;
 DO(9, GA(x,INT,1,0,0); ACX(x); * AV(x)=i-9;              num[i-9]   =x;);
 DO(8, GA(x,INT,1,0,0); ACX(x); * AV(x)=i+2;              num[i+2]   =x;);
 GA(x,B01, 1,0,0     ); ACX(x); *BAV(x)=0;                num[0]=zero=x;
 GA(x,B01, 1,0,0     ); ACX(x); *BAV(x)=1;                num[1]=one =x;
 memset(chr,C0,256*SZI);
 GA(x,LIT, 1,0,0     ); ACX(x); *CAV(x)=' ';              chr[' '   ]=x;
 GA(x,LIT, 1,0,0     ); ACX(x); *CAV(x)=':';              chr[':'   ]=x;
 GA(x,LIT, 1,0,0     ); ACX(x); *CAV(x)='/';              chr['/'   ]=x;
 GA(x,LIT, 1,0,0     ); ACX(x); *CAV(x)='\\';             chr['\\'  ]=x;
 GA(x,LIT, 1,0,0     ); ACX(x); *CAV(x)=CQUOTE;           chr[CQUOTE]=x;
 GA(x,B01, 0,1,0     ); ACX(x);                           mtv        =x;
 GA(x,LIT, 0,1,0     ); ACX(x);                           aqq        =x;
 GA(x,INT, 1,1,0     ); ACX(x); * AV(x)=0;                iv0=xzero  =x;
 GA(x,INT, 1,1,0     ); ACX(x); * AV(x)=1;                iv1=xone   =x;
 GA(x,FL,  1,0,0     ); ACX(x); *DAV(x)=inf;              ainf       =x;
 GA(x,FL,  1,0,0     ); ACX(x); *DAV(x)=PI;               pie        =x;
 GA(x,MARK,1,0,0     ); ACX(x); * AV(x)=0;                mark       =x; 
 GA(x,B01, 0,2,&zeroZ); ACX(x);                           mtm        =x;
 GA(x,CMPX,1,0,0     ); ACX(x); d=DAV(x); *d=0; *(1+d)=1; a0j1       =x;
 RZ(y=str(1L,"z"));     ACX(y);
 GA(x,BOX, 1,1,0     ); ACX(x); *AAV(x)=y;                zpath      =x;
 RZ(mnam=makename("m")); RZ(mdot=makename("m."));
 RZ(nnam=makename("n")); RZ(ndot=makename("n."));
 RZ(unam=makename("u")); RZ(udot=makename("u."));
 RZ(vnam=makename("v")); RZ(vdot=makename("v."));
 RZ(xnam=makename("x")); RZ(xdot=makename("x."));
 RZ(ynam=makename("y")); RZ(ydot=makename("y."));
 zeroQ.n =xzero; zeroQ.d =xone;
 zeroDX.e=0;     zeroDX.x=xzero;
 memset(minus0,C0,8L); minus0[SYS&SYS_LILENDIAN?7:0]='\200';
 pf=qpf();
 pinit();
 R 1;
}    /* called once when dll is loaded to create global constants */

static B jtevinit(J jt){A q,*v;
 GA(q,BOX,1+NEVM,1,0); v=AAV(q);
 DO(AN(q), v[i]=mtv;);
 v[EVALLOC  ]=cstr("allocation error"           );
 v[EVASSERT ]=cstr("assertion failure"          );
 v[EVATTN   ]=cstr("attention interrupt"        );
 v[EVBREAK  ]=cstr("break"                      );
 v[EVCTRL   ]=cstr("control error"              );
 v[EVDOMAIN ]=cstr("domain error"               );
 v[EVFACCESS]=cstr("file access error"          );
 v[EVFNAME  ]=cstr("file name error"            );
 v[EVFNUM   ]=cstr("file number error"          );
 v[EVILNAME ]=cstr("ill-formed name"            );
 v[EVILNUM  ]=cstr("ill-formed number"          );
 v[EVINDEX  ]=cstr("index error"                );
 v[EVINPRUPT]=cstr("input interrupt"            );
 v[EVFACE   ]=cstr("interface error"            );
 v[EVLENGTH ]=cstr("length error"               );
 v[EVLIMIT  ]=cstr("limit error"                );
 v[EVLOCALE ]=cstr("locale error"               );
 v[EVNAN    ]=cstr("NaN error"                  );
 v[EVNONCE  ]=cstr("nonce error"                );
 v[EVSPARSE ]=cstr("non-unique sparse elements" );
 v[EVOPENQ  ]=cstr("open quote"                 );
 v[EVWSFULL ]=cstr("out of memory"              );
 v[EVRANK   ]=cstr("rank error"                 );
 v[EVRO     ]=cstr("read-only data"             );
 v[EVSECURE ]=cstr("security violation"         );
 v[EVSPELL  ]=cstr("spelling error"             );
 v[EVSTACK  ]=cstr("stack error"                );
 v[EVSTOP   ]=cstr("stop"                       );
 v[EVSYNTAX ]=cstr("syntax error"               );
 v[EVSYSTEM ]=cstr("system error"               );
 v[EVTIME   ]=cstr("time limit"                 );
 v[EVVALUE  ]=cstr("value error"                );
 ra(q); jt->evm=q;
 if(jt->jerr){printf("evinit failed; error %hhi\n", jt->jerr); R 0;} else R 1;
}

/* static void sigflpe(int k){jsignal(EVDOMAIN); signal(SIGFPE,sigflpe);} */

static B jtconsinit(J jt){D y;
 jt->assert=1;
 RZ(jt->bxa=cstr("+++++++++|-")); jt->bx=CAV(jt->bxa);
 y=1.0; DO(44, y*=0.5;); jt->ct=jt->fuzz=y;
 jt->disp[0]=1; jt->disp[1]=5;
 jt->fcalln=NFCALL;
 jt->fdepn=NFDEP;
 jt->outmaxafter=222;
 jt->outmaxlen=256;
 strcpy(jt->outseq,"\x0a");
 strcpy(jt->pp,"%0.6g");
 jt->retcomm=1;
 jt->tostdout=1;
 jt->transposeflag=1;
 jt->xmode=XMEXACT;
 R 1;
}

static C jtjinit3(J jt){S t;
/* required for jdll and doesn't hurt others */
 gjt=jt; // global jt for JPF debug
#if (SYS & SYS_DOS)
 t=EM_ZERODIVIDE+EM_INVALID; _controlfp(t,t);
#endif
#if (SYS & SYS_OS2)
 t=EM_ZERODIVIDE+EM_INVALID+EM_OVERFLOW+EM_UNDERFLOW; _control87(t,t);
#endif
#if (SYS & SYS_FREEBSD)
 fpsetmask(0);
#endif
 jt->tssbase=tod();
 meminit();
 sesminit();
 evinit();
 consinit();
 symbinit();
 parseinit();
 xoinit();
 xsinit();
 sbtypeinit();
 rnginit();
#if (SYS & SYS_DOS+SYS_MACINTOSH)
 xlinit();
#endif
 jtecvtinit(jt);
 R !jt->jerr;
}

C jtjinit2(J jt,int dummy0,C**dummy1){jt->sesm=1; R jinit3();}