low-level keyboard input (not hooked up to /dev yet)

fix acquire() to cli() *before* incrementing nlock
make T_SYSCALL a trap gate, not an interrupt gate
sadly, various crashes if you hold down a keyboard key...

1 files changed, 1 insertions, 0 deletions

diff --git a/x86.h b/x86.h
index 41a6e9a..ea60064 100644
--- a/x86.h
+++ b/x86.h
@@ -362,6 +362,7 @@ struct trapframe {
 
 #define IRQ_OFFSET      32	// IRQ 0 corresponds to int IRQ_OFFSET
 
+#define IRQ_KBD         1
 #define IRQ_IDE         14
 #define IRQ_ERROR       19
 #define IRQ_SPURIOUS    31