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feature: functional shell with help and merdella commands

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TOOD: reboot, poweroff, echo, color
This commit is contained in:
0x35c
2024-09-10 20:03:33 +02:00
parent 232b19666a
commit 15bdb4743a
8 changed files with 232 additions and 19 deletions
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43
src/terminal/put.c
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@ -129,3 +129,46 @@ void update_cursor(void)
outb(0x3D4, 0x0E);
outb(0x3D5, (pos >> 8) & 0xFF);
}
void move_cursor(int direction)
{
switch (direction) {
case LEFT:
if (screen->column) {
screen->column--;
} else if (screen->row) {
screen->column = VGA_WIDTH - 1;
screen->row--;
}
break;
case RIGHT:
if (screen->column < VGA_WIDTH - 1) {
screen->column++;
} else if (screen->row < VGA_HEIGHT - 1) {
screen->column = 0;
screen->row++;
} else {
terminal_new_line();
}
break;
case UP:
break;
case DOWN:
break;
default:
break;
}
uint16_t pos = screen->row * VGA_WIDTH + screen->column;
outb(0x3D4, 0x0F);
outb(0x3D5, pos & 0xFF);
outb(0x3D4, 0x0E);
outb(0x3D5, (pos >> 8) & 0xFF);
}
struct screen *get_screen(void)
{
return screen;
}