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NUT.c
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asm (
".section .entry\n"
".global _start\n"
"_start:\n\t"
// Disable VGA cursor
"mov $0x01, %ah\n\t"
"mov $0x2607, %cx\n\t"
"int $0x10\n\t"
"call kmain"
);
#include <stddef.h>
#include <stdint.h>
#define STI() asm("sti" ::: "memory");
#define CLI() asm("cli" ::: "memory");
#define MK_FP(seg, off) \
((void __far *) ((unsigned long) (unsigned) (seg) << 16 | \
(unsigned) (off)))
int ticks = 0;
int text[80][25] = {0};
int curx = 0;
int cury = 0;
/*
* Set the backgroun color so that it draws an italian flag.
*/
char get_color_from_pos(int x) {
if(x <= 26) {
return 0x2f;
} else if(x >= 26 && x <= 54) {
return 0x72;
} else if (x > 54 && x < 80){
return 0x4f;
}
return 0x34;
}
int rand() {
return ticks;
}
void set_character(char c, char color, int x, int y) {
volatile int __far * VGA = MK_FP(0xb800, 0);
int full_char = (color << 8) | c;
text[x][y] = full_char;
VGA[x + y * 80] = full_char;
}
void delete_char() {
set_character(' ', get_color_from_pos(curx - 1), curx - 1, cury);
if(curx != 1) {
curx -= 1;
}
}
void puts(char *str) {
int i;
volatile int __far * VGA = MK_FP(0xb800, 0);
for (i = 0; str[i]; i++) {
if(str[i] == 'u') {
str[i] = 'v';
}
if(str[i] == 'U') {
str[i] = 'V';
}
if(str[i] != '\n' && str[i] != '\r') {
set_character(str[i], get_color_from_pos(curx), curx, cury);
curx++;
if(curx > 79) {
curx = 0;
cury++;
}
} else if (str[i] == '\n'){
cury++;
} else if (str[i] == '\r'){
curx = 0;
}
if(cury > 24) {
for(int i = 0; i < 80; i++) {
for(int j = 1; j < 25; j++) {
text[i][j - 1] = text[i][j];
}
}
cury = 24;
for(int i = 0; i < 80; i++) {
set_character(' ', get_color_from_pos(i), i, cury);
}
for(int i = 0; i < 80; i++) {
for(int j = 0; j < 25; j++) {
VGA[i + j * 80] = text[i][j];
}
}
}
}
return;
}
int bios_getchar(void) {
int ret;
asm volatile (
"int $0x16"
: "=a"(ret)
: "0"(0)
);
return ret & 0xff;
}
void bios_gets(char *str, int limit) {
int i = 0;
char in[2];
in[1] = 0;
for (;;) {
in[0] = bios_getchar();
switch (in[0]) {
case 0x08:
if (i) {
i--;
delete_char();
}
continue;
case 0x1c:
continue;
case 0x0d:
str[i] = 0;
break;
default:
if (i == limit - 1)
continue;
puts(in);
str[i++] = (char)in[0];
continue;
}
break;
}
return;
}
int sub_m_size = 12;
char* subject_m[] = {"DIO", "LO SPIRITO SANTO", "GESU", "PADRE PIO", "SAN TOMMASO", "SAN GIUSEPPE", "OGNI SANTO", "IL PAPA",
"SANTO STEFANO", "SAN BENEDETTO DA NORCIA", "SAN GENNARO", "IL PADRE ETERNO"};
int ins_m_size =13;
char* insult_m[] = {"PORCO", "MAIALE", "BASTARDO", "PEZZO DI MERDA", "", "DEPORTATO", "SCHIFOSO", "DEFICIENTE",
"IDIOTA", "IMPESTATO", "COGLIONE", "TESTICOLO","BESTEMMIARE"};
int att_m_size = 53;
char* attribute_m[] = {"SALDATORE", "ARITMETICO", "ARBITRO", "PIROTECNICO", "PORCONE", "SBRATTO", "STATICO", "ALBERO",
"STABILE", "SUBLIME", "PREPUZIO", "TRABEAZIONE", "TRANQUILLONE", "PELATO", "SEGMENTATO", "ALTALENA",
"ROBUSTO", "CONDENSATORE", "AMPLIFICATORE", "NIENTE", "SASSOFONO", "TRE", "FORNACE", "PORTAFOGLIO",
"PEZZO", "PALLE", "FUCILE", "CANE", "LETTO", "SALVADANAIO", "FUNGHETTO", "CUBICO",
"VENTILATORE", "MANUBRIO", "ERRORE", "PROFESSIONALE", "PISTA", "FRUSTA", "DA CORSA", "BESTEMMIARE",
"MULTIFUNZIONE", "MECCANICO", "SU UNA MOTO", "LERCIO", "RADIATORE", "FRACICO", "IN VENDITA ALL'ASTA", "CONFETTO",
"RICONDIZIONATO", "TRASGRESSIVO", "SFERICO", "CHIOSCO", "40ENNE", "TAVOLINO", "RAGGIO LASER", "ANCESTRALE",
"PRIMORDIALE", "FINALE", "ANALE", "BUSTINA", "PIEDE"};
int sub_f_size = 7;
char* subject_f[] = {"MADONNA", "MARIA MADDALENA", "LA SANTISSIMA", "L'IMMACOLATA", "SANTA BARBARA", "LA VERGINE", "LA PENTECOSTE"};
int ins_f_size = 15;
char* insult_f[] = {"TROIA", "MAIALA", "PUTTANONA", "BASTARDA", "ZOCCOLA", "PUTTANA", "MALEDETTA", "SCHIFOSA",
"MALATA", "MERETRICE", "BALDRACCONA", "BALDRACCA", "", "IMPESTATA","BESTEMMIARE"};
int att_f_size = 30;
char* attribute_f[] = {"STIPATA", "SUBLIME", "CATGIRL", "CLEOPATRA", "ABBACINANTE", "CAPRA", "DIAPOSITIVA", "INDOSSATRICE",
"AMMACCATURA", "PASTA", "MAFIA", "TRAP", "PORTA", "BARCA A VELA", "PROFESSIONALE", "PISTA",
"FRUSTA", "DA CORSA", "METROPOLITANA", "BARELLA", "VIDEOLUDICA", "DA BATTAGLIA", "ARIA CONDIZIONATA",
"RAFFREDDATA", "MITRAGLIATRICE", "BUSTINA", "PESCA NOCE", "PALLA", "ESPERTA", "NOCE"};
int pre_size = 7;
char* prefix[] = {"QUASI-", "SUPER-", "PSEUDO-", "ULTRA-", "MEGA-", "MINI-", "MICRO-"};
void bestemmiare(){
if(rand() % 2){
if(rand() % 2){
puts(subject_m[rand() % sub_m_size]);
puts(" ");
puts(insult_m[rand() % ins_m_size]);
puts(" ");
if(!(rand() % 11)){
puts(prefix[rand() % pre_size]);
}
puts(attribute_m[rand() % att_m_size]);
puts(" ");
}else{
puts(insult_m[rand() % ins_m_size]);
puts(" ");
puts(subject_m[rand() % sub_m_size]);
puts(" ");
if(!(rand() % 11)){
puts(prefix[rand() % pre_size]);
}
puts(attribute_m[rand() % att_m_size]);
puts(" ");
}
}else{
if(rand() % 2){
puts(subject_f[rand() % sub_f_size]);
puts(" ");
puts(insult_f[rand() % ins_f_size]);
puts(" ");
if(!(rand() % 11)){
puts(prefix[rand() % pre_size]);
}
puts(attribute_f[rand() % att_f_size]);
puts(" ");
}else{
puts(insult_f[rand() % ins_f_size]);
puts(" ");
puts(subject_f[rand() % sub_f_size]);
puts(" ");
if(!(rand() % 11)){
puts(prefix[rand() % pre_size]);
}
puts(attribute_f[rand() % att_f_size]);
puts(" ");
}
}
}
asm (
".section .text\n"
"timer_isr:\n\t"
"incw %cs:(ticks)\n\t"
"iretw"
);
void timer_isr(void);
struct ivt_entry {
void __far *vector;
};
void kmain(void) {
// Hook int 0x1c
struct ivt_entry __far *ivt = MK_FP(0x0000, 0x0000);
CLI();
ivt[0x1c].vector = timer_isr;
STI();
char prompt[256];
for(int i = 0; i < 80; i++) {
for(int j = 0; j < 25; j++) {
set_character(' ', get_color_from_pos(i), i, j);
}
}
char* str = "Benenuto a BestOS";
puts(str);
for (;;) {
puts("\r\nGRANDE NOCE> ");
bios_gets(prompt, 256);
puts("\r\n");
bestemmiare();
}
}