4 * this program tries helping to understand the amorphous depuration
5 * and recrystallization of SiCx while ion implanation. hopefully the program
6 * will simulate the stabilization of the selforganizing structure in the
10 * - J. K. N. Lindner. Habilationsschrift, Universitaet Augsburg.
11 * - Maik Haeberlen. Diplomarbeit, Universitaet Augsburg.
18 #include <sys/types.h>
28 #define MAKE_AMORPH(N) *(N)|=AMORPH
29 #define MAKE_CRYST(N) *(N)&=~AMORPH
35 puts("-n \t\t no user interaction");
36 printf("-a <value> \t slope of nuclear energy loss (default %f)\n",A_EL);
37 printf("-b <value> \t nuclear energy loss offset (default %f)\n",B_EL);
38 printf("-x <value> \t # x cells (default %d)\n",X);
39 printf("-y <value> \t # x cells (default %d)\n",Y);
40 printf("-z <value> \t # x cells (default %d)\n",Z);
41 printf("-X <value> \t display x (default %d)\n",X/2-1);
42 printf("-Y <value> \t display y (default %d)\n",Y/2-1);
43 printf("-Z <value> \t display z (default %d)\n",Z/2-1);
44 printf("-s <value> \t steps (default %d)\n",STEPS);
45 printf("-d <value> \t refresh display (default %d)\n",REFRESH);
46 printf("-r <value> \t amorphous influence range (default %d)\n",RANGE);
47 printf("-f <value> \t pressure = <value> * 1/distance^2 (default %f)\n",A_AP);
48 printf("-p <value> \t pressure offset (default %f)\n",B_AP);
49 printf("-A <value> \t slope of linear c distribution (default %f)\n",A_CD);
50 printf("-B <value> \t linear c distribution offset (default %f)\n",B_CD);
51 printf("-C <value> \t initial c concentration (default %d)\n",CC);
52 puts("-L <file> \t load from file");
53 puts("-S <file> \t save to file");
54 puts("-R <file> \t read from random file");
59 int process_cell(d3_lattice *d3_l,u32 x,u32 y,u32 z,int r,double a,double b,int *t_c)
66 thiz=d3_l->status+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
67 conc=d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
75 if(*(d3_l->status+((x+d3_l->max_x+i)%d3_l->max_x)+((y+d3_l->max_y+j)%d3_l->max_x)*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH) p+=a*URAND_MAX/(i*i+j*j);
82 if(get_rand(URAND_MAX)<=p)
89 /* assume 1-p probability */
90 if(get_rand(URAND_MAX)>p)
100 int distrib_c(d3_lattice *d3_l,int t_c,double a,double b)
102 int i,j,k,total,area;
108 area=d3_l->max_x*d3_l->max_y;
109 area_h=(int *)malloc(d3_l->max_z*sizeof(int));
112 sum=b*d3_l->max_z+a*d3_l->max_z*(d3_l->max_z+1)/2;
113 for(i=0;i<d3_l->max_z;i++)
118 if(!(*(d3_l->status+(i*area)+j)&AMORPH))
123 temp=(int)((i+1)*a+b)*t_c/(sum*area_h[i]);
128 if(!(*(d3_l->status+(i*area)+j)&AMORPH))
130 *(d3_l->extra+(i*area)+j)=temp;
135 left=(int)(((i+1)*a+b)*t_c/sum)%area_h[i];
138 x=get_rand(d3_l->max_x);
139 y=get_rand(d3_l->max_y);
140 if(!(*(d3_l->status+(i*area)+j)&AMORPH))
142 *(d3_l->extra+(i*area)+x+y*d3_l->max_x)+=1;
151 x=get_rand(d3_l->max_x);
152 y=get_rand(d3_l->max_y);
153 z=get_rand_lgp(d3_l->max_z,a,b);
154 if(!(*(d3_l->status+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH))
156 *(d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)+=1;
165 int save_to_file(char *sf,d3_lattice *d3_l)
169 if((sf_fd=open(sf,O_WRONLY|O_CREAT))<0)
171 puts("cannot open save file");
174 if(write(sf_fd,d3_l,sizeof(d3_lattice))<sizeof(d3_lattice))
176 puts("failed saving d3 lattice struct");
179 c=d3_l->max_x*d3_l->max_y*d3_l->max_z;
180 if(write(sf_fd,d3_l->status,c*sizeof(unsigned char))<c*sizeof(unsigned char))
182 puts("failed saving status of d3 lattice sites");
185 if(write(sf_fd,d3_l->extra,c*sizeof(int))<c*sizeof(int))
187 puts("failed saving sites concentration");
195 int load_from_file(char *lf,d3_lattice *d3_l)
199 if((lf_fd=open(lf,O_RDONLY))<0)
201 puts("cannot open load file");
204 if(read(lf_fd,d3_l,sizeof(d3_lattice))<sizeof(d3_lattice))
206 puts("failed reading d3 lattice struct");
209 c=d3_l->max_x*d3_l->max_y*d3_l->max_z;
210 if((d3_l->status=(unsigned char*)malloc(c*sizeof(unsigned char)))==NULL)
212 puts("cannot allocate status buffer");
215 if((d3_l->extra=(int *)malloc(c*sizeof(int)))==NULL)
217 puts("cannot allocate concentration buffer");
220 if(read(lf_fd,d3_l->status,c*sizeof(unsigned char))<c*sizeof(unsigned char))
222 puts("failed reading status of d3 lattice sites");
225 if(read(lf_fd,d3_l->extra,c*sizeof(int))<c*sizeof(int))
227 puts("failed reading sites concentration");
235 int main(int argc,char **argv)
237 u32 max_x,max_y,max_z,x,y,z,x_c,y_c,z_c;
238 int i,quit,escape,nowait;
239 double a_el,b_el,a_cd,b_cd,a_ap,b_ap;
240 int cc,steps,range,refresh;
241 char s_file[MAX_CHARS];
242 char l_file[MAX_CHARS];
243 char r_file[MAX_CHARS];
247 char status_txt[MAX_TXT];
248 char conc_txt[MAX_TXT];
249 char steps_txt[MAX_TXT];
250 char cc_txt[MAX_TXT];
251 char *arg_v[MAX_ARGV];
290 a_el=atof(argv[++i]);
293 b_el=atof(argv[++i]);
296 max_x=atoi(argv[++i]);
299 max_y=atoi(argv[++i]);
302 max_z=atoi(argv[++i]);
314 steps=atoi(argv[++i]);
317 refresh=atoi(argv[++i]);
320 range=atoi(argv[++i]);
323 a_ap=atof(argv[++i]);
326 b_ap=atof(argv[++i]);
329 a_cd=atof(argv[++i]);
332 b_cd=atof(argv[++i]);
338 strcpy(l_file,argv[++i]);
341 strcpy(s_file,argv[++i]);
344 strcpy(r_file,argv[++i]);
353 if(!strcmp(r_file,"")) rand_init(NULL);
354 else rand_init(r_file);
356 if(!strcmp(l_file,""))
359 d3_lattice_init(&argc,argv,&d3_l,max_x,max_y,max_z);
360 if((d3_l.status=(unsigned char *)malloc(i*sizeof(unsigned char)))==NULL)
362 puts("failed allocating status buffer");
365 memset(d3_l.status,0,i*sizeof(unsigned char));
366 if((d3_l.extra=(int *)malloc(i*sizeof(int)))==NULL)
368 puts("failed allocating concentration buffer");
371 memset(d3_l.extra,0,i*sizeof(int));
374 load_from_file(l_file,&d3_l);
375 d3_lattice_init(&argc,argv,&d3_l,d3_l.max_x,d3_l.max_y,d3_l.max_z);
378 d3_event_init(&d3_l);
380 if(!strcmp(l_file,""))
383 while((i<steps) && (quit==0) && (escape==0))
385 x_c=get_rand(d3_l.max_x);
386 y_c=get_rand(d3_l.max_y);
387 z_c=get_rand_lgp(d3_l.max_z,a_el,b_el);
388 distrib_c(&d3_l,cc,a_cd,b_cd);
389 process_cell(&d3_l,x_c,y_c,z_c,range,a_ap,b_ap,&cc);
392 sprintf(x_txt,"x: %d",x+1);
393 sprintf(y_txt,"y: %d",y+1);
394 sprintf(z_txt,"z: %d",z+1);
395 sprintf(status_txt,"status: %c",(*(d3_l.status+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y)&AMORPH)?'a':'c');
396 sprintf(conc_txt,"conc: %d",*(d3_l.extra+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y));
397 sprintf(steps_txt,"step: %d",i);
398 sprintf(cc_txt,"total c: %d",cc);
409 d3_lattice_draw(&d3_l,x,y,z,10,arg_v);
410 scan_event(&d3_l,&x,&y,&z,&quit,&escape);
416 if(strcmp(s_file,"")) save_to_file(s_file,&d3_l);
418 while((quit==0) && (escape==0) && (nowait==0))
420 sprintf(x_txt,"x: %d",x);
421 sprintf(y_txt,"y: %d",y);
422 sprintf(z_txt,"z: %d",z);
423 sprintf(status_txt,"status: %c",(*(d3_l.status+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y)&AMORPH)?'a':'c');
424 sprintf(conc_txt,"conc: %d",*(d3_l.extra+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y));
425 strcpy(steps_txt,"step: end!");
426 sprintf(cc_txt,"total c: %d",cc);
437 d3_lattice_draw(&d3_l,x,y,z,10,arg_v);
438 scan_event(&d3_l,&x,&y,&z,&quit,&escape);