From a0df6785ef1f2d35ea5a8940f2c6a93e37720f2f Mon Sep 17 00:00:00 2001
From: sfja <sfja2004@gmail.com>
Date: Sun, 15 Feb 2026 22:13:00 +0100
Subject: [PATCH] seperate key release int

---
 programs/boot.vc5asm | 11 +++++++----
 src/vm.cpp           | 13 +++++++++++--
 src/vm.hpp           |  3 ++-
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/programs/boot.vc5asm b/programs/boot.vc5asm
index 287e7bc..8edeb76 100644
--- a/programs/boot.vc5asm
+++ b/programs/boot.vc5asm
@@ -35,13 +35,16 @@ _start:
     ; descriptor table structure:
     ;   [addr + 0] status address
     ;   [addr + 2] keycode address
-    ;   [addr + 4] keyboard interrupt handler
+    ;   [addr + 4] key press interrupt handler
+    ;   [addr + 6] key release interrupt handler
     mov r0, kbd_status
-    mov [0x702], r0
+    mov [0x702 + 0], r0
     mov r0, kbd_code
-    mov [0x704], r0
+    mov [0x702 + 2], r0
     mov r0, key_press_int
-    mov [0x706], r0
+    mov [0x702 + 4], r0
+    mov r0, 0
+    mov [0x702 + 6], r0
     lkbd 0x702
 
     ; character counter
diff --git a/src/vm.cpp b/src/vm.cpp
index 755087d..af89939 100644
--- a/src/vm.cpp
+++ b/src/vm.cpp
@@ -536,7 +536,8 @@ int VM::run_instruction()
             m_kbd_descriptor = KbdDescript {
                 .status_addr = word(op1),
                 .keycode_addr = word(op1 + 2),
-                .int_handler = word(op1 + 4),
+                .press_int_handler = word(op1 + 4),
+                .release_int_handler = word(op1 + 6),
             };
             m_kbd_loaded = true;
             break;
@@ -596,7 +597,15 @@ void VM::poll_events()
 
                 set_word(d.status_addr, flags);
                 set_word(d.keycode_addr, event->as_key_event().key);
-                interrupt(d.int_handler);
+                if (event->type() == IoEvent::Type::KeyPress) {
+                    if (d.press_int_handler) {
+                        interrupt(d.press_int_handler);
+                    }
+                } else {
+                    if (d.release_int_handler) {
+                        interrupt(d.release_int_handler);
+                    }
+                }
             }
             continue;
         }
diff --git a/src/vm.hpp b/src/vm.hpp
index 3eaaa91..42d6c19 100644
--- a/src/vm.hpp
+++ b/src/vm.hpp
@@ -97,7 +97,8 @@ struct VcdDescript {
 struct KbdDescript {
     uint16_t status_addr;
     uint16_t keycode_addr;
-    uint16_t int_handler;
+    uint16_t press_int_handler;
+    uint16_t release_int_handler;
 };
 
 enum class KbdStatusFlag : uint16_t {