Can't print on screen when keyboard interrupt happens

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Shvets04
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Posts: 28
Joined: Wed Feb 13, 2019 3:07 pm

Can't print on screen when keyboard interrupt happens

Post by Shvets04 »

hi, i want to implement simple shell in text screen mode.
i've implemented interrupts, and keyboard driver, but i cant put char on screen when intterrupt happens.

this is my keyboard handler

Code: Select all

static void keyboard_callback(registers_t regs) {
    
    kprintf("int"); // for debug only, but anyway it does not print anything on screen;
    dlog("key int"); // it works
    u8 scancode = inb(0x60);
    char *sc_ascii = convert(scancode, 10);
    print_letter(scancode); //<-- it is function that call shell_handler() and it should print text on screen.
    

}
the dlog() just print text on terminal(for debug) and it function work correctly.
how to solve this problem?

code - https://github.com/s04v/OSv1.0
Octocontrabass
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Posts: 5578
Joined: Mon Mar 25, 2013 7:01 pm

Re: Can't print on screen when keyboard interrupt happens

Post by Octocontrabass »

I'm surprised it works at all, since there are many mistakes in boot.asm and boot2.asm. For starters, which one of those are you actually using? You can't possibly be using both!
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