Imbus/xv6-riscv-kernel
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

debugging prints

Browse source
This commit is contained in:
rsc 2006-09-07 15:45:38 +00:00
parent 1542186378
commit ab17e3198b
3 changed files with 39 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

34
console.c
View file

@ -356,19 +356,29 @@ kbd_intr()
c += 'a' - 'A';
}
// Ignore unknown keystrokes.
if(c == 0x0) {
release(&kbd_lock);
return;
}
switch(c){
case 0:
// Ignore unknown keystrokes.
break;
case C('T'):
cprintf("#"); // Let user know we're still alive.
break;
case C('P'):
procdump();
break;
if(((kbd_w + 1) % KBD_BUF) != kbd_r){
kbd_buf[kbd_w++] = c;
if(kbd_w >= KBD_BUF)
kbd_w = 0;
wakeup(&kbd_r);
} else {
cprintf("kbd overflow\n");
default:
if(((kbd_w + 1) % KBD_BUF) != kbd_r){
kbd_buf[kbd_w++] = c;
if(kbd_w >= KBD_BUF)
kbd_w = 0;
wakeup(&kbd_r);
} else {
cprintf("kbd overflow\n");
}
break;
}
release(&kbd_lock);