caos-with-snake/kernel.c
2022-12-14 17:17:27 +03:00

51 lines
1.2 KiB
C

asm(".asciz \"kernel start\\n\"");
#include "console.h"
#include "cpu/isr.h"
#include "cpu/gdt.h"
#include "drivers/keyboard.h"
#include "drivers/vga.h"
#include "drivers/ata.h"
#include "drivers/misc.h"
#include "drivers/uart.h"
#include "fs/fs.h"
#include "lib/string.h"
#include "proc.h"
void _start() {
load_gdt();
init_keyboard();
uartinit();
load_idt();
sti();
char *buf = (char*)(16 << 20);
vga_clear_screen();
printk("YABLOKO\n");
if (read_file("kernel.bin", buf, 4096 + sector_size) > 0) {
printk(buf + 4096);
} else {
printk("failed to read file\n");
}
printk("\n> ");
while (1) {
if (kbd_buf_size > 0 && kbd_buf[kbd_buf_size-1] == '\n') {
if (!strncmp("halt\n", kbd_buf, kbd_buf_size)) {
qemu_shutdown();
} else if (!strncmp("run ", kbd_buf, 4)) {
kbd_buf[kbd_buf_size-1] = '\0';
const char* cmd = kbd_buf + 4;
run_elf(cmd);
} else {
printk("unknown command, try: halt | run CMD");
}
kbd_buf_size = 0;
printk("\n> ");
}
asm("hlt");
}
}