Detect keyboard ctrl-alt-delete and try to reset machine.

1 files changed, 9 insertions, 3 deletions

diff --git a/src/kbd.c b/src/kbd.c
index cb60306..e0f958a 100644
--- a/src/kbd.c
+++ b/src/kbd.c
@@ -338,6 +338,9 @@ handle_16(struct bregs *regs)
     }
 }
 
+// 16bit reset vector declared in romlayout.S
+void reset_vector() __attribute__ ((noreturn));
+
 #define none 0
 #define MAX_SCAN_CODE 0x58
 
@@ -566,9 +569,12 @@ process_key(u8 scancode)
         return;
 
     default:
-        if (scancode & 0x80) {
-            break; /* toss key releases ... */
-        }
+        if (scancode & 0x80)
+            // toss key releases
+            break;
+        if (scancode == 0x53 && (shift_flags & 0x0c) == 0x0c)
+            // Ctrl+alt+del - reset machine.
+            reset_vector();
         if (scancode > MAX_SCAN_CODE) {
             dprintf(1, "KBD: int09h_handler(): unknown scancode read: 0x%02x!\n"
                     , scancode);