/*  Code generator for Intel 80386 or higher.                   */

#include "supp.h"

static char FILE_[]=__FILE__;

/*  Public data that MUST be there.                             */

/* Name and copyright. */
char cg_copyright[]="vbcc code-generator for i386 V0.4b (c) in 1996-97 by Volker Barthelmann";

/*  Commandline-flags the code-generator accepts                */
int g_flags[MAXGF]={VALFLAG,VALFLAG,0,0,
                    0,0,0,0};
char *g_flags_name[MAXGF]={"cpu","fpu","no-delayed-popping","const-in-data",
                           "merge-constants","elf","longalign","safe-fp"};
union ppi g_flags_val[MAXGF];

/*  Alignment-requirements for all types in bytes.              */
zlong align[16];

/*  Alignment that is sufficient for every object.              */
zlong maxalign;

/*  CHAR_BIT of the target machine.                             */
zlong char_bit;

/*  Sizes of all elementary types in bytes.                     */
zlong sizetab[16];

/*  Minimum and Maximum values each type can have.              */
/*  Must be initialized in init_cg().                           */
zlong t_min[32];
zulong t_max[32];

/*  Names of all registers.                                     */
char *regnames[MAXR+1]={"noreg","%eax","%ecx","%edx","%ebx",
                                "%esi","%edi","%ebp","%esp",
                                "%st(0)","%st(1)","%st(2)","%st(3)",
                                "%st(4)","%st(5)","%st(6)","%st(7)"};

/*  The Size of each register in bytes.                         */
zlong regsize[MAXR+1];

/*  Type which can store each register. */
struct Typ *regtype[MAXR+1];

/*  regsa[reg]!=0 if a certain register is allocated and should */
/*  not be used by the compiler pass.                           */
int regsa[MAXR+1];

/*  Specifies which registers may be scratched by functions.    */
int regscratch[MAXR+1]={0,1,1,1,0,0,0,0,0,1,1,1,1,1,1,1,1};


/****************************************/
/*  Some private data and functions.    */
/****************************************/

static long malign[16]=  {1,1,2,2,2,2,2,1,2,1,1,1,2,1};
static long msizetab[16]={0,1,2,4,4,4,8,0,4,0,0,0,4,0};

struct Typ ltyp={LONG},ldbl={DOUBLE};

#define DATA 0
#define BSS 1
#define CODE 2

static int section=-1,newobj;
static char *codename="\t.text\n",*dataname="\t.data\n",*bssname="";
static int is_const(struct Typ *);
static const int ax=1,cx=2,dx=3,bx=4,si=5,di=6,bp=7,sp=8;
static char x_t[]={'?','b','w','l','l','s','l','v','l','a','s','u','e','f','?','?'};
static int is_const(struct Typ *);
static void pr(FILE *,struct IC *);
static void function_top(FILE *,struct Var *,long);
static void function_bottom(FILE *f,struct Var *,long);

#define isreg(x) ((p->x.flags&(REG|DREFOBJ))==REG)

static long loff,stackoffset,notpopped,dontpop;

static char *ccs[]={"z","nz","l","ge","le","g","mp"};
static char *ccu[]={"z","nz","b","ae","be","a","mp"};
static char *logicals[]={"or","xor","and"};
static char *arithmetics[]={"sal","sar","add","sub","imul","div","mod"};
static char *farithmetics[]={"f?","f?","fadd","fsub","fmul","fdiv","fsubr","fdivr"};
static char *dct[]={"","byte","short","long","long","long","long","long","long"};
static pushedsize,pushorder=2;
static int fst[8];
static int cxl,dil,sil;
static char *idprefix="",*labprefix="";

static struct fpconstlist {
    struct fpconstlist *next;
    int label,typ;
    union atyps val;
} *firstfpc;

static int addfpconst(struct obj *o,int t)
{
    struct fpconstlist *p=firstfpc;
    t&=NQ;
    if(g_flags[4]&USEDFLAG){
        for(p=firstfpc;p;p=p->next){
            if(t==p->typ){
                eval_const(&p->val,t);
                if(t==FLOAT&&zdeqto(vdouble,zf2zd(o->val.vfloat))) return(p->label);
                if(t==DOUBLE&&zdeqto(vdouble,o->val.vdouble)) return(p->label);
            }
        }
    }
    p=mymalloc(sizeof(struct fpconstlist));
    p->next=firstfpc;
    p->label=++label;
    p->typ=t;
    p->val=o->val;
    firstfpc=p;
    return(p->label);
}
static void probj2(FILE *f,struct obj *p,int t)
/*  Gibt Objekt auf Bildschirm aus                      */
{
  if((p->flags&(DREFOBJ|REG))==(DREFOBJ|REG)) fprintf(f,"(");
  if(p->flags&VARADR) fprintf(f,"$");
  if((p->flags&VAR)&&!(p->flags&REG)) {
    if(p->v->storage_class==AUTO||p->v->storage_class==REGISTER){
      if(p->v->offset<0) fprintf(f,"%ld(%%esp)",(long)(loff-zl2l(p->v->offset)+zl2l(p->val.vlong))-stackoffset+pushedsize);
      else           fprintf(f,"%ld(%%esp)",(long)(zl2l(p->v->offset)+zl2l(p->val.vlong)-stackoffset));
    }else{
      if(!zleqto(l2zl(0L),p->val.vlong)){printval(f,&p->val,LONG,0);fprintf(f,"+");}
      if(p->v->storage_class==STATIC&&(p->v->vtyp->flags&NQ)!=FUNKT){
	fprintf(f,"%sl%ld",labprefix,zl2l(p->v->offset));
      }else{
	fprintf(f,"%s%s",idprefix,p->v->identifier);
      }
    }
  }
  if(p->flags&REG){
    if(p->reg>8){
      int i;
      for(i=0;i<8;i++){
	if(fst[i]==p->reg)
	  fprintf(f,"%s",regnames[i+9]);
      }
    }else{
      t&=NQ;
      if(t==CHAR&&!(p->flags&DREFOBJ)) fprintf(f,"%%%cl",regnames[p->reg][2]);
      else if(t==SHORT&&!(p->flags&DREFOBJ)) fprintf(f,"%%%s",regnames[p->reg]+2);
      else fprintf(f,"%s",regnames[p->reg]);
    }
  }
  if(p->flags&KONST){
    if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
      fprintf(f,"%sl%d",labprefix,addfpconst(p,t));
    }else{
      fprintf(f,"$");printval(f,&p->val,t&NU,0);
    }
  }
  if((p->flags&(DREFOBJ|REG))==(DREFOBJ|REG)) fprintf(f,")");
}
static void fxch(FILE *f,int i)
{
    int m;
    fprintf(f,"\tfxch\t%s\n",regnames[i+9]);
    m=fst[0];fst[0]=fst[i];fst[i]=m;
}
static int freest(void)
{
    int i;
    for(i=0;i<8;i++){
        if(fst[i]<0) return(i);
    }
    for(i=0;i<8;i++){
        if(fst[i]==0) return(i);
    }
    ierror(0);
}
static void fpush(FILE *f)
{
    int i;
    if(fst[7]>0){
        i=freest();
	if(fst[i]==0) fprintf(f,"\tffree\t%s\n",regnames[i+9]);
        fxch(f,i);fxch(f,7);
    }
    for(i=7;i>0;i--)
        fst[i]=fst[i-1];
    fst[0]=-1;
}
static void fpop(void)
{
    int i;
/*    if(fst[0]>0&&regs[fst[0]]) ierror(0);*/
    for(i=0;i<7;i++)
        fst[i]=fst[i+1];
    fst[7]=-1;
}
static void fload(FILE *f,struct obj *o,int t)
{
    fprintf(f,"\tfld");
    if((o->flags&(REG|DREFOBJ))==REG) fprintf(f,"\t");
        else fprintf(f,"%c\t",x_t[t&NQ]);
    probj2(f,o,t);fprintf(f,"\n");
    fpush(f);
}
static void fstore(FILE *f,struct obj *o,int t)
{
    int i;
    if((o->flags&(REG|DREFOBJ))==REG){
        for(i=0;i<8;i++)
            if(fst[i]==o->reg) fst[i]=0;
        fst[0]=o->reg;
    }else{
        fprintf(f,"\tfstp%c\t",x_t[t&NQ]);probj2(f,o,t);
        fpop();fprintf(f,"\n");
    }
}
static void prfst(FILE *f,char *s)
{
    int i;
    if(DEBUG==0) return;
    fprintf(f,"*\t%s\t",s);
    for(i=0;i<8;i++){
        if(fst[i]>=0){
	    if(fst[i]==0) fprintf(f,"+++ ");
              else        fprintf(f,"%s ",regnames[fst[i]]+3);
        }else{
            fprintf(f,"--- ");
	}
    }
    fprintf(f,"\n");
}
static void finit(void)
{
    int i;
    for(i=0;i<8;i++){
        if(regs[i+9])
            fst[i]=i+9;
        else
            fst[i]=-1;
    }
}
static void forder(FILE *f)
{
    int i,m,unordered;
    prfst(f,"forder"); 
    for(i=0;i<8;i++){
        if(fst[i]==0){fprintf(f,"\tffree\t%s\n",regnames[i+9]);fst[i]=-1;}
    }
oloop:
    unordered=0;
    for(i=0;i<8;i++){
        if(fst[i]>0&&fst[i]!=i+9&&regs[fst[i]]){unordered=1;break;}
    }
    if(!unordered) return;
    if(fst[0]>=0&&regs[fst[0]]){
        if(fst[0]!=9){
            fxch(f,fst[0]-9);
            goto oloop;
        }else{
            fxch(f,freest());
        }
    }
    for(i=1;i<8;i++){
        if(fst[i]>=0&&fst[i]!=i+9&&regs[fst[i]]&&fst[i]!=9){
            fxch(f,i);
            goto oloop;
        }
    }
    if(regs[9]){
        for(i=1;i<8;i++){
            if(fst[i]==9){ fxch(f,i);return;}
        }
    }
}
static void pr(FILE *f,struct IC *p)
{
    int i;
    for(;pushorder>2;pushorder>>=1){
        for(i=1;i<=8;i++){
            if(regs[i]&pushorder){
                fprintf(f,"\tpopl\t%s\n",regnames[i]);
                stackoffset+=4;regs[i]&=~pushorder;
            }
        }
    }
    for(i=1;i<=8;i++)
        if(regs[i]&2) regs[i]&=~2;
}
static void function_top(FILE *f,struct Var *v,long offset)
/*  erzeugt Funktionskopf                       */
{
    int i;
    if(section!=CODE){fprintf(f,codename);section=CODE;}
    if(v->storage_class==EXTERN) fprintf(f,"\t.globl\t%s%s\n",idprefix,v->identifier);
    fprintf(f,"%s%s:\n",idprefix,v->identifier);
    for(pushedsize=0,i=1;i<sp;i++){
        if(regused[i]&&!regscratch[i]){
            fprintf(f,"\tpushl\t%s\n",regnames[i]);
            pushedsize+=4;
        }
    }
    if(offset) fprintf(f,"\tsubl\t$%ld,%%esp\n",offset);
}
static void function_bottom(FILE *f,struct Var *v,long offset)
/*  erzeugt Funktionsende                       */
{
    int i;
    forder(f);
    if(offset) fprintf(f,"\taddl\t$%ld,%%esp\n",offset);
    for(i=sp-1;i>0;i--){
        if(regused[i]&&!regscratch[i]){
            fprintf(f,"\tpopl\t%s\n",regnames[i]);
        }
    }
    fprintf(f,"\tret\n");
}
static int is_const(struct Typ *t)
/*  Tests if a type can be placed in the code-section.  */
{
    if(!(t->flags&(CONST|STRINGCONST))){
        do{
            if(t->flags&(CONST|STRINGCONST)) return(1);
            if((t->flags&NQ)!=ARRAY) return(0);
            t=t->next;
        }while(1);
    }else return(1);
}
static int compare_objects(struct obj *o1,struct obj *o2)
{
    if(o1->flags==o2->flags&&o1->am==o2->am){
        if(!(o1->flags&VAR)||(o1->v==o2->v&&zleqto(o1->val.vlong,o2->val.vlong))){
            if(!(o1->flags&REG)||o1->reg==o2->reg){
                return(1);
            }
        }
    }
    return(0);
}
static int get_reg(FILE *f,struct IC *p,int type)
{
    int i;
    /*  If we can use a register which was already used by the compiler */
    /*  or it is a sratch register then we can use it without problems. */
    for(i=1;i<=8;i++){
        if(!regs[i]&&(regused[i]||regscratch[i])&&regok(i,type,0)){
            regs[i]=2;
            return(i);
        }
    }
    /*  Otherwise we have to save this register.                        */
    /*  We may not use a register which is used in this IC.             */
    for(i=1;i<=8;i++){
        if(regs[i]<2&&regok(i,type,0)
            &&(!(p->q1.flags&REG)||p->q1.reg!=i)
            &&(!(p->q2.flags&REG)||p->q2.reg!=i)
            &&(!(p->z.flags&REG)||p->z.reg!=i) ){

            fprintf(f,"\tpushl\t%s\n",regnames[i]);
            /*  Mark register as pushed (taking care of the order). */
            pushorder<<=1; regs[i]|=pushorder;
            stackoffset-=4;
            return(i);
        }
    }
    ierror(0);
}
static void move(FILE *f,struct obj *q,int qr,struct obj *z,int zr,int t)
/*  Generates code to move object q (or register qr) into object z (or  */
/*  register zr).                                                       */
{
  t&=NQ;
  if(q&&(q->flags&(REG|DREFOBJ))==REG) qr=q->reg;
  if(z&&(z->flags&(REG|DREFOBJ))==REG) zr=z->reg;
  if(qr&&zr){
    if(qr!=zr)
      fprintf(f,"\tmovl\t%s,%s\n",regnames[qr],regnames[zr]);
    return;
  }
  if(zr&&(q->flags&KONST)){
    eval_const(&q->val,t);
    if(zleqto(vlong,l2zl(0L))&&zuleqto(vulong,ul2zul(0UL))&&zdeqto(vdouble,d2zd(0.0))){
      fprintf(f,"\txorl\t%s,%s\n",regnames[zr],regnames[zr]);
      return;
    }
  }
  fprintf(f,"\tmov%c\t",x_t[t&NQ]);
  if(qr){
    if(t==SHORT) fprintf(f,"%%%s",regnames[qr]+2);
    else if(t==CHAR) fprintf(f,"%%%cl",regnames[qr][2]);
    else fprintf(f,"%s",regnames[qr]);
  }else 
    probj2(f,q,t);
  fprintf(f,",");
  if(zr){
    if(t==SHORT) fprintf(f,"%%%s",regnames[zr]+2);
    else if(t==CHAR) fprintf(f,"%%%cl",regnames[zr][2]);
    else fprintf(f,"%s",regnames[zr]);
  }else 
    probj2(f,z,t);
  fprintf(f,"\n");
}
static long pof2(zulong x)
/*  Yields log2(x)+1 oder 0. */
{
    zulong p;int ln=1;
    p=ul2zul(1L);
    while(ln<=32&&zulleq(p,x)){
        if(zuleqto(x,p)) return(ln);
        ln++;p=zuladd(p,p);
    }
    return(0);
}

/****************************************/
/*  End of private fata and functions.  */
/****************************************/


int init_cg(void)
/*  Does necessary initializations for the code-generator. Gets called  */
/*  once at the beginning and should return 0 in case of problems.      */
{
    int i;
    /*  Initialize some values which cannot be statically initialized   */
    /*  because they are stored in the target's arithmetic.             */
    maxalign=l2zl(4L);
    char_bit=l2zl(8L);
    if(g_flags[6]&USEDFLAG){
        for(i=SHORT;i<16;i++) malign[i]=4;
    }
    for(i=0;i<16;i++){
        sizetab[i]=l2zl(msizetab[i]);
        align[i]=l2zl(malign[i]);
    }
    for(i=1;i<= 8;i++) {regsize[i]=l2zl(4L);regtype[i]=&ltyp;}
    for(i=9;i<=16;i++) {regsize[i]=l2zl(8L);regtype[i]=&ldbl;}

    /*  Initialize the min/max-settings. Note that the types of the     */
    /*  host system may be different from the target system and you may */
    /*  only use the smallest maximum values ANSI guarantees if you     */
    /*  want to be portable.                                            */
    /*  That's the reason for the subtraction in t_min[INT]. Long could */
    /*  be unable to represent -2147483648 on the host system.          */
    t_min[UNSIGNED|CHAR]=t_min[UNSIGNED|SHORT]=t_min[UNSIGNED|INT]=t_min[UNSIGNED|LONG]=l2zl(0L);
    t_min[CHAR]=l2zl(-128L);
    t_min[SHORT]=l2zl(-32768L);
    t_min[LONG]=zlsub(l2zl(-2147483647L),l2zl(1L));
    t_min[INT]=t_min[LONG];
    t_max[CHAR]=ul2zul(127L);
    t_max[SHORT]=ul2zul(32767UL);
    t_max[LONG]=ul2zul(2147483647UL);
    t_max[INT]=t_max[LONG];
    t_max[UNSIGNED|CHAR]=ul2zul(255UL);
    t_max[UNSIGNED|SHORT]=ul2zul(65535UL);
    t_max[UNSIGNED|LONG]=ul2zul(4294967295UL);
    t_max[UNSIGNED|INT]=t_max[UNSIGNED|LONG];
    /*  Reserve a few registers for use by the code-generator.      */
    /*  We only reserve the stack-pointer here.                     */
    regsa[sp]=1;
    /*  We need at least one free slot in the flaoting point stack  */
    regsa[16]=1;regscratch[16]=0;
    /*  Use l%d as labels and _%s as identifiers by default. If     */
    /*  -elf is specified we use .l%d and %s instead.               */
    if(g_flags[5]&USEDFLAG) labprefix="."; else idprefix="_";
    return(1);
}

int freturn(struct Typ *t)
/*  Returns the register in which variables of type t are returned. */
/*  If the value cannot be returned in a register returns 0.        */
{
    if((t->flags&NQ)==FLOAT||(t->flags&NQ)==DOUBLE) return 9;
    if((t->flags&NQ)<=POINTER) return 1;
    return 0;
}

int regok(int r,int t,int mode)
/*  Returns 0 if register r cannot store variables of   */
/*  type t. If t==POINTER and mode!=0 then it returns   */
/*  non-zero only if the register can store a pointer   */
/*  and dereference a pointer to mode.                  */
{
    if(r==0) return(0);
    t&=NQ;
    if(r>8){
      if(g_flags[7]&USEDFLAG) return 0;
      if(t==FLOAT||t==DOUBLE) return 1;
        else                  return 0;
    }
    if(t==CHAR&&(r==si||r==di||r==bp)) return 0;
    if(t<=LONG) return 1;
    if(t==POINTER) return 1;
    return 0;
}

int dangerous_IC(struct IC *p)
/*  Returns zero if the IC p can be safely executed     */
/*  without danger of exceptions or similar things.     */
/*  vbcc may generate code in which non-dangerous ICs   */
/*  are sometimes executed although control-flow may    */
/*  never reach them (mainly when moving computations   */
/*  out of loops).                                      */
/*  Typical ICs that generate exceptions on some        */
/*  machines are:                                       */
/*      - accesses via pointers                         */
/*      - division/modulo                               */
/*      - overflow on signed integer/floats             */
{
    int c=p->code;
    if((p->q1.flags&DREFOBJ)||(p->q2.flags&DREFOBJ)||(p->z.flags&DREFOBJ))
        return(0);
    if((c==DIV||c==MOD)&&!(p->q2.flags&KONST))
        return(1);
    return(0);
}

int must_convert(np p,int t)
/*  Returns zero if code for converting np to type t    */
/*  can be omitted.                                     */
/*  In this generic 32bit RISC cpu pointers and 32bit   */
/*  integers have the same representation and can use   */
/*  the same registers.                                 */
{
    int o=p->ntyp->flags,op=o&NQ,tp=t&NQ;
    if(tp==POINTER&&op==POINTER) return(0);
    if((t&UNSIGNED)&&(o&UNSIGNED)&&zleqto(sizetab[tp],sizetab[op])) return(0);
    if((tp==INT&&op==LONG)||(tp==LONG&&op==INT)) return(0);

    return(1);
}

void gen_ds(FILE *f,zlong size,struct Typ *t)
/*  This function has to create <size> bytes of storage */
/*  initialized with zero.                              */
{
    if(newobj) fprintf(f,"%ld\n",zl2l(size));
        else   fprintf(f,"\t.space\t%ld\n",zl2l(size));
    newobj=0;
}

void gen_align(FILE *f,zlong align)
/*  This function has to make sure the next data is     */
/*  aligned to multiples of <align> bytes.              */
{
    if(!zlleq(align,l2zl(1L))) fprintf(f,"\t.align\t4\n");
}

void gen_var_head(FILE *f,struct Var *v)
/*  This function has to create the head of a variable  */
/*  definition, i.e. the label and information for      */
/*  linkage etc.                                        */
{
    int constflag;
    if(v->clist) constflag=is_const(v->vtyp);
    if(v->storage_class==STATIC){
        if((v->vtyp->flags&NQ)==FUNKT) return;
        if(v->clist&&(!constflag||(g_flags[3]&USEDFLAG))&&section!=DATA){fprintf(f,dataname);section=DATA;}
        if(v->clist&&constflag&&!(g_flags[3]&USEDFLAG)&&section!=CODE){fprintf(f,codename);section=CODE;}
        if(!v->clist&&section!=BSS){fprintf(f,bssname);section=BSS;}
        if(section!=BSS) fprintf(f,"\t.align\t4\n%sl%ld:\n",labprefix,zl2l(v->offset));
            else fprintf(f,"\t.lcomm\t%sl%ld,",labprefix,zl2l(v->offset));
        newobj=1;
    }
    if(v->storage_class==EXTERN){
        fprintf(f,"\t.globl\t%s%s\n",idprefix,v->identifier);
        if(v->flags&(DEFINED|TENTATIVE)){
            if(v->clist&&(!constflag||(g_flags[3]&USEDFLAG))&&section!=DATA){fprintf(f,dataname);section=DATA;}
            if(v->clist&&constflag&&!(g_flags[3]&USEDFLAG)&&section!=CODE){fprintf(f,codename);section=CODE;}
            if(!v->clist&&section!=BSS){fprintf(f,bssname);section=BSS;}
            if(section!=BSS) fprintf(f,"\t.align\t4\n%s%s:\n",idprefix,v->identifier);
                else fprintf(f,"\t.comm\t%s%s,",idprefix,v->identifier);
            newobj=1;
        }
    }
}

void gen_dc(FILE *f,int t,struct const_list *p)
/*  This function has to create static storage          */
/*  initialized with const-list p.                      */
{
    fprintf(f,"\t.%s\t",dct[t&NQ]);
    if(!p->tree){
        if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
        /*  auch wieder nicht sehr schoen und IEEE noetig   */
            unsigned char *ip;
            ip=(unsigned char *)&p->val.vdouble;
            fprintf(f,"0x%02x%02x%02x%02x",ip[3],ip[2],ip[1],ip[0]);
            if((t&NQ)==DOUBLE){
                fprintf(f,",0x%02x%02x%02x%02x",ip[7],ip[6],ip[5],ip[4]);
            }
        }else{
            printval(f,&p->val,t&NU,0);
        }
    }else{
        int m=p->tree->o.flags;
        p->tree->o.flags&=~VARADR;
        probj2(f,&p->tree->o,t&NU);
        p->tree->o.flags=m;
    }
    fprintf(f,"\n");newobj=0;
}

/*  The main code-generation routine.                   */
/*  f is the stream the code should be written to.      */
/*  p is a pointer to a doubly linked list of ICs       */
/*  containing the function body to generate code for.  */
/*  v is a pointer to the function.                     */
/*  offset is the size of the stackframe the function   */
/*  needs for local variables.                          */
void gen_code(FILE *f,struct IC *p,struct Var *v,zlong offset)
{
    int c,t,lastcomp=0,reg;
    if(DEBUG&1) printf("gen_code()\n");
    for(c=1;c<=15;c++) regs[c]=regsa[c];
    regs[16]=0;
    loff=((zl2l(offset)+1)/2)*2;
    function_top(f,v,loff);
    stackoffset=notpopped=dontpop=0;
    finit();
    for(;p;pr(f,p),p=p->next){
        c=p->code;t=p->typf;
        if(c==NOP) continue;
        if(c==SUBPFP) c=SUB;
        if(c==SUBIFP) c=SUB;
        if(c==ADDI2P) c=ADD;
        if(c==ALLOCREG){
            regs[p->q1.reg]=1;
            continue;
        }
        if(c==FREEREG){
            if(p->q1.reg>=9){
                for(c=0;c<8;c++)
                    if(fst[c]==p->q1.reg) fst[c]=0;
            }
            regs[p->q1.reg]=0;
            continue;
        }
        if(notpopped&&!dontpop){
            int flag=0;
            if(c==LABEL||c==COMPARE||c==TEST||c==BRA){
                fprintf(f,"\taddl\t$%ld,%%esp\n",notpopped);
                stackoffset+=notpopped;notpopped=0;
            }
        }
        if(c==LABEL) {forder(f);fprintf(f,"%sl%d:\n",labprefix,t);continue;}
        if(c>=BEQ&&c<=BRA){
            forder(f);
            if(lastcomp&UNSIGNED) fprintf(f,"\tj%s\t%sl%d\n",ccu[c-BEQ],labprefix,t);
                else              fprintf(f,"\tj%s\t%sl%d\n",ccs[c-BEQ],labprefix,t);
            continue;
        }
        if(c==MOVETOREG){
            if(p->z.reg>8){
                for(c=0;c<8;c++){
                    if(fst[c]==p->z.reg) fst[c]=0;
                }
                fload(f,&p->q1,DOUBLE);
                fst[0]=p->z.reg;
                continue;
            }
            move(f,&p->q1,0,0,p->z.reg,LONG);
            continue;
        }
        if(c==MOVEFROMREG){
            if(p->q1.reg>8){
                if(fst[0]!=p->q1.reg){
                    for(c=0,reg=-1;c<8;c++){
                        if(fst[c]==p->q1.reg) reg=c;
                    }
                    if(reg<0) ierror(0);
                    fxch(f,reg);
                }
                fprintf(f,"\tfstpl\t");probj2(f,&p->z,DOUBLE);
                fprintf(f,"\n");fpop();
                continue;
            }
            move(f,0,p->q1.reg,&p->z,0,LONG);
            continue;
        }
        if((p->q1.flags&(DREFOBJ|REG))==DREFOBJ){
            reg=get_reg(f,p,LONG);
            move(f,&p->q1,0,0,reg,LONG);
            p->q1.flags|=REG;p->q1.reg=reg;
	    p->q1.flags&=~KONST;
        }
        if((p->q2.flags&(DREFOBJ|REG))==DREFOBJ){
            reg=get_reg(f,p,LONG);
            move(f,&p->q2,0,0,reg,LONG);
            p->q2.flags|=REG;p->q2.reg=reg;
	    p->q2.flags&=~KONST;
        }
        if((p->z.flags&(DREFOBJ|REG))==DREFOBJ){
            reg=get_reg(f,p,LONG);
            move(f,&p->z,0,0,reg,LONG);
            p->z.flags|=REG;p->z.reg=reg;
	    p->z.flags&=~KONST;
        }
        if(c>=CONVCHAR&&c<=CONVULONG){
            int to;
            if(c==CONVCHAR) to=CHAR;
            if(c==CONVUCHAR) to=(UNSIGNED|CHAR);
            if(c==CONVSHORT) to=SHORT;
            if(c==CONVUSHORT) to=(UNSIGNED|SHORT);
            if(c==CONVINT) to=INT;
            if(c==CONVUINT) to=(UNSIGNED|INT);
            if(c==CONVLONG) to=INT;
            if(c==CONVULONG) to=(UNSIGNED|INT);
            if(c==CONVFLOAT) to=FLOAT;
            if(c==CONVDOUBLE) to=DOUBLE;
            if(c==CONVPOINTER) to=(UNSIGNED|INT);
            if((t&NU)==LONG) t=INT;
            if((t&NU)==(UNSIGNED|LONG)||(t&NU)==POINTER) t=(UNSIGNED|INT);
            if((to&NQ)<=INT&&(t&NQ)<=INT){
                if(isreg(z)) reg=p->z.reg;
                else if(isreg(q1)&&regok(p->q1.reg,t,0)) reg=p->q1.reg;
                else reg=get_reg(f,p,((to&NQ)==CHAR||(t&NQ)==CHAR)?CHAR:LONG);
                if((to&NQ)<=SHORT){
                    fprintf(f,"\tmov%c%cl\t",(to&UNSIGNED)?'z':'s',x_t[to&NQ]);
		    probj2(f,&p->q1,to);
                    fprintf(f,",%s\n",regnames[reg]);
                }else{
                    move(f,&p->q1,0,0,reg,to);
                }
                move(f,0,reg,&p->z,0,t);
                continue;
            }
            if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
                if((to&NQ)==FLOAT||(to&NQ)==DOUBLE){
                    if(isreg(q1)&&fst[0]==p->q1.reg){
                        if(isreg(z)){
                            if(p->z.reg==fst[0]) continue;
                            for(reg=0,c=7;c>=0;c--){
                                if(fst[c]==p->z.reg){reg=c;break;}
                                if(fst[c]<0) reg=c;
                            }
                            fst[reg]=p->z.reg;
                        }
                        fprintf(f,"\tfst%c\t",x_t[t&NQ]);
                        probj2(f,&p->z,t);fprintf(f,"\n");
                        continue;
                    }
                    fload(f,&p->q1,to);
                    fstore(f,&p->z,t);
                    continue;
                }
                if((to&NQ)<=SHORT){
                    if(isreg(q1)){
                        reg=p->q1.reg;
                        if(to&UNSIGNED){
                            fprintf(f,"\tandl\t$%ld,%s\n",(to&NQ)==CHAR?255L:65535L,regnames[reg]);
                        }else{
/*                            fprintf(f,"\tc%ctl\t%s\n",x_t[to&NQ],regnames[reg]);*/
                            if((to&NQ)==SHORT){
                                fprintf(f,"\tmovswl\t%%%s,%s\n",regnames[reg]+2,regnames[reg]);
                            }else{
                                fprintf(f,"\tmovsbl\t%%%cl,%s\n",regnames[reg][2],regnames[reg]);
                            }
                        }
                    }else{
                        reg=get_reg(f,p,LONG);
                        if(to&UNSIGNED){
                            fprintf(f,"\tmovz%cl\t",x_t[to&NQ]);
                        }else{
                            fprintf(f,"\tmovs%cl\t",x_t[to&NQ]);
                        }
                        probj2(f,&p->q1,to);fprintf(f,",%s\n",regnames[reg]);
                    }
                    fprintf(f,"\tpushl\t%s\n",regnames[reg]);
                    fprintf(f,"\tfildl\t(%s)\n\taddl\t$4,%s\n",regnames[sp],regnames[sp]);
                }else{
                    if(to&UNSIGNED){
                        fprintf(f,"\tpushl\t$0\n\tpushl\t");stackoffset-=4;
                        probj2(f,&p->q1,to);
                        fprintf(f,"\n\tfildq\t(%s)\n\taddl\t$8,%s\n",regnames[sp],regnames[sp]);
                        stackoffset+=4;
                    }else{
                        if(isreg(q1)){
                            fprintf(f,"\tpushl\t%s\n\tfildl\t(%s)\n\taddl\t$4,%s\n",regnames[p->q1.reg],regnames[sp],regnames[sp]);
                        }else{
                            fprintf(f,"\tfildl\t");probj2(f,&p->q1,t);
                            fprintf(f,"\n");
                        }
                    }
                }
                fpush(f);
                fstore(f,&p->z,t);
                continue;
            }
            if((to&NQ)==FLOAT||(to&NQ)==DOUBLE){
                if(isreg(q1)&&fst[0]==p->q1.reg){
                    if((t&NQ)==CHAR){
                        if(isreg(z)) reg=p->z.reg; else reg=get_reg(f,p,CHAR);
                        fprintf(f,"\tsubl\t$4,%s\n\tfistl\t(%s)\n\tmovsbl\t(%s),%s\n\taddl\t$4,%s\n",regnames[sp],regnames[sp],regnames[sp],regnames[reg],regnames[sp]);
                        move(f,0,reg,&p->z,0,t);
                    }else{
		      if(isreg(z)){
			fprintf(f,"\tsubl\t$4,%s\n\tfistl\t(%s)\n\tmov%c\t(%s),",regnames[sp],regnames[sp],x_t[t&NQ],regnames[sp]);
			stackoffset-=4;
			probj2(f,&p->z,t);fprintf(f,"\n\taddl\t$4,%s\n",regnames[sp]);
			stackoffset+=4;
		      }else{
			fprintf(f,"\tfist%c\t",x_t[t&NQ]);
                        probj2(f,&p->z,t);fprintf(f,"\n");
		      }
                    }
                }else{
                    fload(f,&p->q1,to);
                    if((t&NQ)==CHAR){
                        if(isreg(z)) reg=p->z.reg; else reg=get_reg(f,p,CHAR);
                        fprintf(f,"\tsubl\t$4,%s\n\tfistpl\t(%s)\n\tmovsbl\t(%s),%s\n\taddl\t$4,%s\n",regnames[sp],regnames[sp],regnames[sp],regnames[reg],regnames[sp]);
                        fpop(); move(f,0,reg,&p->z,0,t);
                    }else{
		      if(isreg(z)){
			fprintf(f,"\tsubl\t$4,%s\n\tfistpl\t(%s)\n\tmov%c\t(%s),",regnames[sp],regnames[sp],x_t[t&NQ],regnames[sp]);
			stackoffset-=4;
			probj2(f,&p->z,t);fprintf(f,"\n\taddl\t$4,%s\n",regnames[sp]);
			stackoffset+=4;fpop();
		      }else{
			fprintf(f,"\tfistp%c\t",x_t[t&NQ]);
                        probj2(f,&p->z,t);fprintf(f,"\n");fpop();
		      }
                    }
                }
                continue;
            }
            ierror(0);
        }
        if(c==MINUS||c==KOMPLEMENT){
            char *s;
            if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
                if(isreg(z)&&p->z.reg==9&&isreg(q1)&&p->q1.reg==9){
                    fprintf(f,"\tfchs\n");
                    continue;
                }
                fload(f,&p->q1,t);
                fprintf(f,"\tfchs\n");
                fprintf(f,"\tfstp%c\t",x_t[t&NQ]);
                probj2(f,&p->z,t);fprintf(f,"\n");
                fpop();
                continue;
            }
            if(c==MINUS) s="neg"; else s="not";
            if(compare_objects(&p->q1,&p->q2)){
                fprintf(f,"\t%s%c\t",s,x_t[t&NQ]);
                probj2(f,&p->z,t);fprintf(f,"\n");
                continue;
            }
            if(isreg(z)) reg=p->z.reg; else reg=get_reg(f,p,t);
            move(f,&p->q1,0,0,reg,t);
            fprintf(f,"\t%s%c\t%s\n",s,x_t[t&NQ],regnames[reg]);
            move(f,0,reg,&p->z,0,t);
            continue;
        }
        if(c==SETRETURN){
            if(p->z.reg){
                if(p->z.reg==9){
                    if(!isreg(q1)||fst[0]!=p->q1.reg)
                        fload(f,&p->q1,t);
                }else{
                    move(f,&p->q1,0,0,p->z.reg,t);
                }
            }
            continue;
        }
        if(c==GETRETURN){
            if(p->q1.reg){
                if(p->q1.reg==9){
                    if(!isreg(z)||fst[0]!=p->z.reg)
                        fstore(f,&p->z,t);
                }else{
                    move(f,0,p->q1.reg,&p->z,0,t);
                }
            }
            continue;
        }
        if(c==CALL){
            int reg;
	    if((p->q1.flags&VAR)&&p->q1.v->fi&&p->q1.v->fi->inline_asm){
	      fprintf(f,"%s\n",p->q1.v->fi->inline_asm);
	    }else{
	      if(p->q1.flags&DREFOBJ){
                if(!(p->q1.flags&REG)) ierror(0);
                fprintf(f,"\tcall\t*%s\n",regnames[p->q1.reg]);
	      }else{
                fprintf(f,"\tcall\t");probj2(f,&p->q1,t);
                fprintf(f,"\n");
	      }
	    }
            if(!zleqto(l2zl(0L),p->q2.val.vlong)){
	      notpopped+=zl2l(p->q2.val.vlong);
	      dontpop-=zl2l(p->q2.val.vlong);
	      if(!(g_flags[2]&USEDFLAG)&&stackoffset==-notpopped){
                /*  Entfernen der Parameter verzoegern  */
	      }else{
		fprintf(f,"\taddl\t$%ld,%%esp\n",zl2l(p->q2.val.vlong));
		stackoffset+=zl2l(p->q2.val.vlong);
		notpopped-=zl2l(p->q2.val.vlong);
	      }
            }
            continue;
        }
        if(c==ASSIGN||c==PUSH){
            if(c==PUSH) dontpop+=zl2l(p->q2.val.vlong);
            if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
                if(c==ASSIGN){
                    prfst(f,"fassign");
                    fload(f,&p->q1,t);
                    fstore(f,&p->z,t);
                    continue;
                }else if(isreg(q1)){
                    prfst(f,"fpush");
                    fprintf(f,"\tsubl\t$%ld,%s\n",zl2l(sizetab[t&NQ]),regnames[sp]);
                    stackoffset-=zl2l(sizetab[t&NQ]);
                    if(fst[0]==p->q1.reg){
                        fprintf(f,"\tfst%c\t(%s)\n",x_t[t&NQ],regnames[sp]);
                    }else{
                        fload(f,&p->q1,t);
                        fprintf(f,"\tfstp%c\t(%s)\n",x_t[t&NQ],regnames[sp]);
                        fpop();
                    }
                    continue;
                }
            }
            if((t&NQ)>POINTER||!zleqto(p->q2.val.vlong,sizetab[t&NQ])||!zlleq(p->q2.val.vlong,l2zl(4L))){
                int mdi=di,msi=si,m=0;long l;
                l=zl2l(p->q2.val.vlong);
                if(regs[cx]){m|=1;if(!cxl)cxl=++label;fprintf(f,"\tmovl\t%s,%sl%d\n",regnames[cx],labprefix,cxl);}
                if(regs[msi]||!regused[msi]){m|=2;if(!sil)sil=++label;fprintf(f,"\tmovl\t%s,%sl%d\n",regnames[msi],labprefix,sil);}
                if(regs[mdi]||!regused[mdi]){m|=4;if(!dil)dil=++label;fprintf(f,"\tmovl\t%s,%sl%d\n",regnames[mdi],labprefix,dil);}
                if((p->z.flags&REG)&&p->z.reg==msi&&(p->q1.flags&REG)&&p->q1.reg==mdi){
                    msi=di;mdi=si;
                    m|=8;
                }
                if(!(p->z.flags&REG)||p->z.reg!=msi){
                    fprintf(f,"\tleal\t");probj2(f,&p->q1,t);
                    fprintf(f,",%s\n",regnames[msi]);
                }
                if(c==PUSH){
                    fprintf(f,"\tsubl\t$%ld,%s\n\tmovl\t%s,%s\n",l,regnames[sp],regnames[sp],regnames[mdi]);
                    stackoffset-=l;
                }else{
                    fprintf(f,"\tleal\t");probj2(f,&p->z,t);
                    fprintf(f,",%s\n",regnames[mdi]);
                }
                if((p->z.flags&REG)&&p->z.reg==msi){
                    fprintf(f,"\tleal\t");probj2(f,&p->q1,t);
                    fprintf(f,",%s\n",regnames[msi]);
                }
                if(m&8){
                    msi=si;mdi=di;
                    fprintf(f,"\txch\t%s,%s\n",regnames[msi],regnames[mdi]);
                }
                if((t&NQ)==ARRAY||(t&NQ)==CHAR||l<4){
                    fprintf(f,"\tmovl\t$%ld,%s\n\trep\n\tmovsb\n",l,regnames[cx]);
                }else{
                    if(l>=8)
                        fprintf(f,"\tmovl\t$%ld,%s\n\trep\n",l/4,regnames[cx]);
                    fprintf(f,"\tmovsl\n");
                    if(l%2) fprintf(f,"\tmovsw\n");
                    if(l%1) fprintf(f,"\tmovsb\n");
                }
                if(m&4) fprintf(f,"\tmovl\t%sl%d,%s\n",labprefix,dil,regnames[mdi]);
                if(m&2) fprintf(f,"\tmovl\t%sl%d,%s\n",labprefix,sil,regnames[msi]);
                if(m&1) fprintf(f,"\tmovl\t%sl%d,%s\n",labprefix,cxl,regnames[cx]);
                continue;
            }
            if(t==FLOAT) t=LONG;
            if(c==PUSH){
                fprintf(f,"\tpush%c\t",x_t[t&NQ]);
                probj2(f,&p->q1,t);fprintf(f,"\n");
                stackoffset-=zl2l(p->q2.val.vlong);
                continue;
            }
            if(c==ASSIGN){
                if(p->q1.flags&KONST){
                    move(f,&p->q1,0,&p->z,0,t);
                    continue;
                }
                if(isreg(z)) reg=p->z.reg;
                else if(isreg(q1)) reg=p->q1.reg;
                else reg=get_reg(f,p,t);
                move(f,&p->q1,0,0,reg,t);
                move(f,0,reg,&p->z,0,t);
                continue;
            }
            ierror(0);
        }
        if(c==ADDRESS){
            if(isreg(z)) reg=p->z.reg; else reg=get_reg(f,p,LONG);
            fprintf(f,"\tleal\t");probj2(f,&p->q1,t);
            fprintf(f,",%s\n",regnames[reg]);
            move(f,0,reg,&p->z,0,POINTER);
            continue;
        }
        if(c==TEST){
            lastcomp=t;
            if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
                if(isreg(q1)&&fst[0]==p->q1.reg){
                    fprintf(f,"\tftst\n");lastcomp|=UNSIGNED;
                    continue;
                }else{
                    p->code=c=COMPARE;
                    p->q2.flags=KONST;
                    p->q2.val.vdouble=d2zd(0.0);
                    if((t&NQ)==FLOAT) p->q2.val.vfloat=zd2zf(p->q2.val.vdouble);
                    /*  fall through to COMPARE */
                }
            }else{
                fprintf(f,"\tcmp%c\t$0,",x_t[t&NQ]);
                probj2(f,&p->q1,t);fprintf(f,"\n");
                continue;
            }
        }
        if(c==COMPARE){
            lastcomp=t;
            if(isreg(q2)||(p->q1.flags&KONST)){
                struct IC *b=p->next;
                struct obj o;
                o=p->q1;p->q1=p->q2;p->q2=o;
                while(b&&b->code==FREEREG) b=b->next;
                if(!b) ierror(0);
                if(b->code==BLT) b->code=BGT;
                else if(b->code==BLE) b->code=BGE;
                else if(b->code==BGT) b->code=BLT;
                else if(b->code==BGE) b->code=BLE;
            }
            if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
                prfst(f,"fcomp");
                if(isreg(q1)&&p->q1.reg==fst[0]){
                    fprintf(f,"\tfcom%c\t",x_t[t&NQ]);
                    probj2(f,&p->q2,t);fprintf(f,"\n");
                }else{
                    fload(f,&p->q1,t);
                    fprintf(f,"\tfcomp%c\t",x_t[t&NQ]);
                    probj2(f,&p->q2,t);fprintf(f,"\n");
                    fpop();
                }
                fprintf(f,"\tfstsw\n\tsahf\n");
                lastcomp|=UNSIGNED;
                continue;
            }
            if(!isreg(q1)){
                if(!isreg(q2)){
                    reg=get_reg(f,p,t);
                    move(f,&p->q1,0,0,reg,t);
                    p->q1.flags=REG;
                    p->q1.reg=reg;
                }
            }
            fprintf(f,"\tcmp%c\t",x_t[t&NQ]);
            probj2(f,&p->q2,t);fprintf(f,",");
            probj2(f,&p->q1,t);fprintf(f,"\n");
            continue;
        }
        if((t&NQ)==FLOAT||(t&NQ)==DOUBLE){
            char s[2];
            prfst(f,"fmath");
            if(isreg(q2)) s[0]=0; else {s[0]=x_t[t&NQ];s[1]=0;}
            if(isreg(z)&&isreg(q1)&&p->q1.reg==fst[0]&&p->z.reg==fst[0]){
                fprintf(f,"\t%s%s\t",farithmetics[c-LSHIFT],s);
                probj2(f,&p->q2,t); fprintf(f,"\n");continue;
            }
            fload(f,&p->q1,t);
            fprintf(f,"\t%s%s\t",farithmetics[c-LSHIFT],s);
            probj2(f,&p->q2,t); fprintf(f,"\n");
            fstore(f,&p->z,t); continue;
        }
        if((c==MULT||c==DIV||(c==MOD&&(p->typf&UNSIGNED)))&&(p->q2.flags&KONST)){
            long ln;
            eval_const(&p->q2.val,t);
            if(zlleq(l2zl(0L),vlong)&&zulleq(ul2zul(0UL),vulong)){
                if(ln=pof2(vulong)){
                    if(c==MOD){
                        vlong=zlsub(vlong,l2zl(1L));
                        p->code=AND;
                    }else{
                        vlong=l2zl(ln-1);
                        if(c==DIV) p->code=RSHIFT; else p->code=LSHIFT;
                    }
                    c=p->code;
                    if((t&NU)==CHAR) p->q2.val.vchar=zl2zc(vlong);
                    if((t&NU)==SHORT) p->q2.val.vshort=zl2zs(vlong);
                    if((t&NU)==INT) p->q2.val.vint=zl2zi(vlong);
                    if((t&NU)==LONG) p->q2.val.vlong=vlong;
                    vulong=zl2zul(vlong);
                    if((t&NU)==(UNSIGNED|CHAR)) p->q2.val.vuchar=zul2zuc(vulong);
                    if((t&NU)==(UNSIGNED|SHORT)) p->q2.val.vushort=zul2zus(vulong);
                    if((t&NU)==(UNSIGNED|INT))  p->q2.val.vuint=zul2zui(vulong);
                    if((t&NU)==(UNSIGNED|LONG)) p->q2.val.vulong=vulong;
                }
            }
        }
        if(c==MOD||c==DIV){
            int m=0;
            if(regs[ax]&&(!isreg(z)||p->z.reg!=ax)){
                fprintf(f,"\tpushl\t%s\n",regnames[ax]);
                stackoffset-=4;m|=1;
            }
            if(regs[dx]&&(!isreg(z)||p->z.reg!=dx)){
                fprintf(f,"\tpushl\t%s\n",regnames[dx]);
                stackoffset-=4;m|=2;
            }
            if((p->q2.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&(p->q2.reg==ax||p->q2.reg==dx)){
                move(f,&p->q2,0,0,dx,t);
                fprintf(f,"\tpushl\t%s\n",regnames[dx]);
                m|=8;stackoffset-=4;
            }
            move(f,&p->q1,0,0,ax,t);
            if(p->q2.flags&KONST){
                fprintf(f,"\tpush%c\t",x_t[t&NQ]);probj2(f,&p->q2,t);
                fprintf(f,"\n");m|=4;stackoffset-=4;
            }
            if(t&UNSIGNED) fprintf(f,"\txorl\t%s,%s\n\tdivl\t",regnames[dx],regnames[dx]);
                else       fprintf(f,"\tcltd\n\tidivl\t");
            if((m&12)||(isreg(q2)&&p->q2.reg==dx)){
                fprintf(f,"(%s)",regnames[sp]);
            }else if(isreg(q2)&&p->q2.reg==ax){
                fprintf(f,"%s(%s)",(m&2)?"4":"",regnames[sp]);
            }else{
                probj2(f,&p->q2,t);
            }
            fprintf(f,"\n");
            if(c==DIV) move(f,0,ax,&p->z,0,t);
                else   move(f,0,dx,&p->z,0,t);
            if(m&4){ fprintf(f,"\taddl\t$%ld,%s\n",zl2l(sizetab[t&NQ]),regnames[sp]);stackoffset+=4;}
            if(m&8){ fprintf(f,"\tpopl\t%s\n",regnames[dx]);stackoffset+=4;}
            if(m&2){ fprintf(f,"\tpopl\t%s\n",regnames[dx]);stackoffset+=4;}
            if(m&1){ fprintf(f,"\tpopl\t%s\n",regnames[ax]);stackoffset+=4;}
            continue;
        }
        if(!(p->q2.flags&KONST)&&(c==LSHIFT||c==RSHIFT)){
            char *s=arithmetics[c-LSHIFT];
            int fl=0;
            if(c==RSHIFT&&(t&UNSIGNED)) s="shr";
            if(((p->q1.flags&REG)&&p->q1.reg==cx)||((p->z.flags&REG)&&p->z.reg==cx)
               ||(!compare_objects(&p->q1,&p->z)&&!isreg(q1))){
	        fl=regs[cx];regs[cx]=2; /* don't want cx */
                reg=get_reg(f,p,t);
		regs[cx]=fl;
		if(isreg(z)&&p->z.reg==cx) fl=0;
		if(fl){fprintf(f,"\tpushl\t%s\n",regnames[cx]);stackoffset-=4;}
                move(f,&p->q1,0,0,reg,t);
                move(f,&p->q2,0,0,cx,t);
                fprintf(f,"\t%s%c\t%%cl,%s\n",s,x_t[t&NQ],regnames[reg]);
                move(f,0,reg,&p->z,0,t);
		if(fl){fprintf(f,"\tpopl\t%s\n",regnames[cx]);stackoffset+=4;}
                continue;
            }else{
                if(!isreg(q2)||p->q2.reg!=cx){
                    if(regs[cx]){fprintf(f,"\tpushl\t%s\n",regnames[cx]);stackoffset-=4;fl=1;}
                    move(f,&p->q2,0,0,cx,t);
                }
                if(compare_objects(&p->q1,&p->z)){
                    fprintf(f,"\t%s%c\t%%cl,",s,x_t[t&NQ]);
                    probj2(f,&p->z,t);fprintf(f,"\n");
                }else{
                    move(f,0,p->q1.reg,&p->z,0,t);
                    fprintf(f,"\t%s%c\t%%cl,",s,x_t[t&NQ]);
                    probj2(f,&p->z,t);fprintf(f,"\n");
                }
                if(fl) {fprintf(f,"\tpopl\t%s\n",regnames[cx]);stackoffset+=4;}
                continue;
            }
        }
        if((c>=LSHIFT&&c<=MOD)||(c>=OR&&c<=AND)){
            char *s;
            if(c>=OR&&c<=AND) s=logicals[c-OR];
                else s=arithmetics[c-LSHIFT];
            if(c==RSHIFT&&(t&UNSIGNED)) s="shr";
            if(c!=MULT&&compare_objects(&p->q1,&p->z)){
                if(isreg(z)||isreg(q1)||(p->q2.flags&KONST)){
                    if((p->q2.flags&KONST)&&(c==ADD||c==SUB)){
                        eval_const(&p->q2.val,t);
                        if(zleqto(vlong,l2zl(1L))&&zuleqto(vulong,ul2zul(1UL))&&zdeqto(vdouble,d2zd(1.0))){
                            if(c==ADD) s="inc"; else s="dec";
                            fprintf(f,"\t%s%c\t",s,x_t[t&NQ]);
                            probj2(f,&p->z,t);fprintf(f,"\n");
                            continue;
                        }
                    }
                    fprintf(f,"\t%s%c\t",s,x_t[t&NQ]);
                    probj2(f,&p->q2,t);fprintf(f,",");
                    probj2(f,&p->z,t);fprintf(f,"\n");
                    continue;
                }else{
                    if(isreg(q2)) reg=p->q2.reg; else reg=get_reg(f,p,t);
                    move(f,&p->q2,0,0,reg,t);
                    fprintf(f,"\t%s%c\t%s",s,x_t[t&NQ],regnames[reg]);
                    fprintf(f,","); probj2(f,&p->z,t);fprintf(f,"\n");
                    continue;
                }
            }
            if(isreg(z)) reg=p->z.reg; else reg=get_reg(f,p,t);
            move(f,&p->q1,0,0,reg,t);
            if((p->q2.flags&KONST)&&(c==ADD||c==SUB)){
                eval_const(&p->q2.val,t);
                if(zleqto(vlong,l2zl(1L))&&zuleqto(vulong,ul2zul(1UL))&&zdeqto(vdouble,d2zd(1.0))){
                    if(c==ADD) s="inc"; else s="dec";
                    fprintf(f,"\t%s%c\t%s\n",s,x_t[t&NQ],regnames[reg]);
                }else{
                    fprintf(f,"\t%s%c\t",s,x_t[t&NQ]);
                    probj2(f,&p->q2,t);fprintf(f,",%s\n",regnames[reg]);
                }
            }else{
                fprintf(f,"\t%s%c\t",s,x_t[t&NQ]);
                probj2(f,&p->q2,t);fprintf(f,",%s\n",regnames[reg]);
            }
            move(f,0,reg,&p->z,0,t);
            continue;
        }
        ierror(0);
    }
    if(notpopped){
        fprintf(f,"\taddl\t$%ld,%%esp\n",notpopped);
        stackoffset+=notpopped;notpopped=0;
    }
    function_bottom(f,v,loff);
}

int shortcut(int code,int typ)
{
    return(0);
}

void cleanup_cg(FILE *f)
{
    struct fpconstlist *p;
    unsigned char *ip;
    while(p=firstfpc){
        if(f){
            if(section!=CODE){fprintf(f,codename);section=CODE;}
	    fprintf(f,"\t.align\t4\n");
            fprintf(f,"%sl%d:\n\t.long\t",labprefix,p->label);
            ip=(unsigned char *)&p->val.vdouble;
            fprintf(f,"0x%02x%02x%02x%02x",ip[3],ip[2],ip[1],ip[0]);
            if((p->typ&NQ)==DOUBLE){
                fprintf(f,",0x%02x%02x%02x%02x",ip[7],ip[6],ip[5],ip[4]);
            }
            fprintf(f,"\n");
        }
        firstfpc=p->next;
        free(p);
    }
    if(f){
        if(section!=BSS){fprintf(f,bssname);section=BSS;}
        if(cxl) fprintf(f,"\t.lcomm\t%sl%d,4\n",labprefix,cxl);
        if(sil) fprintf(f,"\t.lcomm\t%sl%d,4\n",labprefix,sil);
        if(dil) fprintf(f,"\t.lcomm\t%sl%d,4\n",labprefix,dil);
    }
}