test.c

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#include <io.h>
#include <file.h>
#include <conio.h>
#include <mouse.h>
#include <graphics.h>
#include <string.h>
#include <stdlib.h>
 
__start int main() {
    char a[] = "Greetings from C disk! Parameters:";
    Byte parameters = 0x80;
    printf("%s\"%s\"\n", a, parameters);
    Byte disk[701];
 
    //read and print file data.txt
    FILE *file = NULL;
    file = open("data.txt", "");
    if(file == NULL) {
        puts("ERROR file cannot be opened\n");
        return 404;
    }
    printf("Size: %i; ID: %i\n", file->size, file->id);
    size_t size = read(disk, 12, file);
    printf("Readed: %iB: ", size);
    for(size_t i = 0; i < size; i++)
        putc(disk[i]);
    printf("\nSize: %i; ID: %i\n", size, file->id);
 
    size = read(disk, 700, file);
    if(size != 700) {
        puts("ERROR file cannot be readed\n");
        return 403;
    }
    for(size_t i = 0; i < size; i++)
        putc(disk[i]);
    puts("END");
    putc('\n');
 
    write("Hello!!! data.txt, I've overwritten it!", 40, file);
    create("HELLO.txt", 2);
 
    getc();
    // test colors
    for(int i = 0; i < 16; i++) {
        for(int j = 0; j < 16; j++)
            cputc('X', j + i * 16, 2);
        putc('\n');
    }
    //test interrupts
    asm("int 0x20"
        ::"a"(0xff00));
    asm("int 0x21"
        ::"a"(0xff00));
 
    //test string operations
    char L0[8] = "123456";
    char L1[] = "Napis1\n";
    puts(L1);
    printf("Napis2\npis456=%s\n", strncpy(L0, strchr(L1, 'p'), 3));
 
    char test2[] = "cdYou shouldn't see this";
    char test1[] = "ab";
    strcpy(test2, test1);
    printf("ab=%s", test2);
 
    //test graphics
    getc();
    setVideoMode(0x10);
    Position pos = {0, 0};
 
    for(int i = 0; i < 10000; i++) {
        pos.x += i;
        pos.y = i % 250;
        pos.x %= 250;
        writePixel(pos, Green);
    }
 
    for(size_t i = 0; i < SIZE_X; i++) {
        pos.x = i;
        pos.y = SIZE_Y - i;
        writePixel(pos, Cyan);
    }
    getc();
    int ret = mouseInitialize();
    if(ret < 0)return ret;
    setVideoMode(ColorMode);
    Key key;
    Color color = Red;
    do {
        printf("%i %i %i %i", mouse.x, mouse.y, mouse.status, (Color)color);
        Position pos = {mouse.x, mouse.y};
        if(mouse.status == LeftPress) {
            color--;
            udelay(100000);
        }
        if(mouse.status == RightPress) {
            color++;
            udelay(100000);
        }
        writePixel(pos, color);
 
        key = getKeyBuff();
        if(key.available == 1) {
            key = getc();
            putc(key.character);
        }
        else
            putc('x');
        printf("      \r");
        udelay(10000);
    } while(key.character != 'a');
    setVideoMode(0x2);
    setColorPalette(DarkGrey);
 
    return -1234;
}
char b[] = "DISK 1234567890";