Malbolge Unshackled (variante de rotation de 20 bits), 3,64E6 octets
La taille de cette réponse étant supérieure à la taille maximale du programme (eh), le code est situé dans mon référentiel GitHub (note: ne copiez pas le code avec CTRL + A et CTRL + C, cliquez avec le bouton droit de la souris sur "Enregistrer l'élément de destination sous". .. ").
Comment faire ça?
Cela pourrait être une partie délicate, car un interprète naïf de Haskell mettra des siècles à faire la différence. TIO a un interprète décent Malbogle Unshackled, mais malheureusement, je ne pourrai pas l'utiliser (limitations).
Le meilleur que j'ai pu trouver est la variante de largeur de rotation fixe de 20 trit, qui fonctionne très bien, calculant (à peu près) instantanément .
Pour rendre l'interprète un peu plus rapide, j'ai supprimé toutes les vérifications de l'interprète Malbolge Unshackled de Matthias Lutter.
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
const char* translation = "5z]&gqtyfr$(we4{WP)H-Zn,[%\\3dL+Q;>U!pJS72Fh"
"OA1CB6v^=I_0/8|jsb9m<.TVac`uY*MK'X~xDl}REokN:#?G\"i@";
typedef struct Word {
unsigned int area;
unsigned int high;
unsigned int low;
} Word;
void word2string(Word w, char* s, int min_length) {
if (!s) return;
if (min_length < 1) min_length = 1;
if (min_length > 20) min_length = 20;
s[0] = (w.area%3) + '0';
s[1] = 't';
char tmp[20];
int i;
for (i=0;i<10;i++) {
tmp[19-i] = (w.low % 3) + '0';
w.low /= 3;
}
for (i=0;i<10;i++) {
tmp[9-i] = (w.high % 3) + '0';
w.high /= 3;
}
i = 0;
while (tmp[i] == s[0] && i < 20 - min_length) i++;
int j = 2;
while (i < 20) {
s[j] = tmp[i];
i++;
j++;
}
s[j] = 0;
}
unsigned int crazy_low(unsigned int a, unsigned int d){
unsigned int crz[] = {1,0,0,1,0,2,2,2,1};
int position = 0;
unsigned int output = 0;
while (position < 10){
unsigned int i = a%3;
unsigned int j = d%3;
unsigned int out = crz[i+3*j];
unsigned int multiple = 1;
int k;
for (k=0;k<position;k++)
multiple *= 3;
output += multiple*out;
a /= 3;
d /= 3;
position++;
}
return output;
}
Word zero() {
Word result = {0, 0, 0};
return result;
}
Word increment(Word d) {
d.low++;
if (d.low >= 59049) {
d.low = 0;
d.high++;
if (d.high >= 59049) {
fprintf(stderr,"error: overflow\n");
exit(1);
}
}
return d;
}
Word decrement(Word d) {
if (d.low == 0) {
d.low = 59048;
d.high--;
}else{
d.low--;
}
return d;
}
Word crazy(Word a, Word d){
Word output;
unsigned int crz[] = {1,0,0,1,0,2,2,2,1};
output.area = crz[a.area+3*d.area];
output.high = crazy_low(a.high, d.high);
output.low = crazy_low(a.low, d.low);
return output;
}
Word rotate_r(Word d){
unsigned int carry_h = d.high%3;
unsigned int carry_l = d.low%3;
d.high = 19683 * carry_l + d.high / 3;
d.low = 19683 * carry_h + d.low / 3;
return d;
}
// last_initialized: if set, use to fill newly generated memory with preinitial values...
Word* ptr_to(Word** mem[], Word d, unsigned int last_initialized) {
if ((mem[d.area])[d.high]) {
return &(((mem[d.area])[d.high])[d.low]);
}
(mem[d.area])[d.high] = (Word*)malloc(59049 * sizeof(Word));
if (!(mem[d.area])[d.high]) {
fprintf(stderr,"error: out of memory.\n");
exit(1);
}
if (last_initialized) {
Word repitition[6];
repitition[(last_initialized-1) % 6] =
((mem[0])[(last_initialized-1) / 59049])
[(last_initialized-1) % 59049];
repitition[(last_initialized) % 6] =
((mem[0])[last_initialized / 59049])
[last_initialized % 59049];
unsigned int i;
for (i=0;i<6;i++) {
repitition[(last_initialized+1+i) % 6] =
crazy(repitition[(last_initialized+i) % 6],
repitition[(last_initialized-1+i) % 6]);
}
unsigned int offset = (59049*d.high) % 6;
i = 0;
while (1){
((mem[d.area])[d.high])[i] = repitition[(i+offset)%6];
if (i == 59048) {
break;
}
i++;
}
}
return &(((mem[d.area])[d.high])[d.low]);
}
unsigned int get_instruction(Word** mem[], Word c,
unsigned int last_initialized,
int ignore_invalid) {
Word* instr = ptr_to(mem, c, last_initialized);
unsigned int instruction = instr->low;
instruction = (instruction+c.low + 59049 * c.high
+ (c.area==1?52:(c.area==2?10:0)))%94;
return instruction;
}
int main(int argc, char* argv[]) {
Word** memory[3];
int i,j;
for (i=0; i<3; i++) {
memory[i] = (Word**)malloc(59049 * sizeof(Word*));
if (!memory) {
fprintf(stderr,"not enough memory.\n");
return 1;
}
for (j=0; j<59049; j++) {
(memory[i])[j] = 0;
}
}
Word a, c, d;
unsigned int result;
FILE* file;
if (argc < 2) {
// read program code from STDIN
file = stdin;
}else{
file = fopen(argv[1],"rb");
}
if (file == NULL) {
fprintf(stderr, "File not found: %s\n",argv[1]);
return 1;
}
a = zero();
c = zero();
d = zero();
result = 0;
while (!feof(file)){
unsigned int instr;
Word* cell = ptr_to(memory, d, 0);
(*cell) = zero();
result = fread(&cell->low,1,1,file);
if (result > 1)
return 1;
if (result == 0 || cell->low == 0x1a || cell->low == 0x04)
break;
instr = (cell->low + d.low + 59049*d.high)%94;
if (cell->low == ' ' || cell->low == '\t' || cell->low == '\r'
|| cell->low == '\n');
else if (cell->low >= 33 && cell->low < 127 &&
(instr == 4 || instr == 5 || instr == 23 || instr == 39
|| instr == 40 || instr == 62 || instr == 68
|| instr == 81)) {
d = increment(d);
}
}
if (file != stdin) {
fclose(file);
}
unsigned int last_initialized = 0;
while (1){
*ptr_to(memory, d, 0) = crazy(*ptr_to(memory, decrement(d), 0),
*ptr_to(memory, decrement(decrement(d)), 0));
last_initialized = d.low + 59049*d.high;
if (d.low == 59048) {
break;
}
d = increment(d);
}
d = zero();
unsigned int step = 0;
while (1) {
unsigned int instruction = get_instruction(memory, c,
last_initialized, 0);
step++;
switch (instruction){
case 4:
c = *ptr_to(memory,d,last_initialized);
break;
case 5:
if (!a.area) {
printf("%c",(char)(a.low + 59049*a.high));
}else if (a.area == 2 && a.low == 59047
&& a.high == 59048) {
printf("\n");
}
break;
case 23:
a = zero();
a.low = getchar();
if (a.low == EOF) {
a.low = 59048;
a.high = 59048;
a.area = 2;
}else if (a.low == '\n'){
a.low = 59047;
a.high = 59048;
a.area = 2;
}
break;
case 39:
a = (*ptr_to(memory,d,last_initialized)
= rotate_r(*ptr_to(memory,d,last_initialized)));
break;
case 40:
d = *ptr_to(memory,d,last_initialized);
break;
case 62:
a = (*ptr_to(memory,d,last_initialized)
= crazy(a, *ptr_to(memory,d,last_initialized)));
break;
case 81:
return 0;
case 68:
default:
break;
}
Word* mem_c = ptr_to(memory, c, last_initialized);
mem_c->low = translation[mem_c->low - 33];
c = increment(c);
d = increment(d);
}
return 0;
}
dumbsignifie simplement inintéressant, sans propriétés particulières.