always read data from ps2 port 2 if we get interrupt

Makefile

@@ -40,6 +40,7 @@ KERNEL_SOURCES := \
 	src/window.c    \
 	src/keyboard.c    \
 	src/unicode.c    \
+	src/interpreter.c    \
 	$(KERNEL_SOURCES_$(ARCH)) \
 	# end of kernel sources list
 

include/interpreter.h

@@ -0,0 +1,8 @@
+#ifndef KARLOS_INTERPRETER_H
+#define KARLOS_INTERPRETER_H
+
+#include <stdint.h>
+
+void interpret_handle_input_line(const uint8_t *s);
+
+#endif

src/console.c

@@ -1,3 +1,4 @@
+#include "interpreter.h"
 #include "keyboard.h"
 #include "std.h"
 #include "console.h"
@@ -118,8 +119,15 @@ void cin_putc(uint32_t c)
         window_glyph_to_framebuffer(&cin_win, cin_cursor_y, cin_cursor_x, true);
 
         // do something with string
-        void cin_handle_input_line(void);
-        cin_handle_input_line();
+        // convert to utf-8 first
+        static uint8_t current_line_utf8[CONSOLE_MAX_COLS * 4];
+        uint8_t *stemp = current_line_utf8;
+        unsigned int idx = 0;
+        while (cin_line[idx] != 0) {
+            utf8_push_terminated(&stemp, cin_line[idx]);
+            idx += 1;
+        }
+        interpret_handle_input_line(current_line_utf8);
         return;
     }
 
@@ -194,55 +202,3 @@ void console_editor_key_event_listener(enum editor_key_event_kind kind, uint32_t
         default: UNREACHABLE();
     }
 }
-
-void cin_handle_input_line() {
-    // utf8-ize the current line
-    static uint8_t current_line_utf8[CONSOLE_MAX_COLS * 4];
-    uint8_t *stemp = current_line_utf8;
-    unsigned int idx = 0;
-    while (cin_line[idx] != 0) {
-        utf8_push_terminated(&stemp, cin_line[idx]);
-        idx += 1;
-    }
-
-    const uint8_t *s = current_line_utf8;
-    printf(">>> %s\n", s);
-    if (memcmp(s, "echo", 4) == 0) {
-        s += 4;
-        while (*s == ' ') {
-            s++;
-        }
-        if (*s != '"') {
-            printf("expected `echo` to be followed by enquoted string\n");
-            return;
-        }
-        s++;
-        // TODO escaped double quote
-        while (1) {
-            glyph g = utf8_next_asserted(&s);
-            if (g == 0) {
-                printf("unclosed delimiter\n");
-                return;
-            } else if (g == '"') {
-                break;
-            } else if (g == '\\') {
-                g = utf8_next_asserted(&s);
-                if (g != 'U') {
-                    printf("unknown escape character\n");
-                    return;
-                }
-                // TODO error handling
-                uint32_t codepoint = 0;
-                for (int i = 0; i < 4; i++) {
-                    codepoint = (codepoint << 4) | hexchar_to_num(utf8_next_asserted(&s));
-                }
-                printf("%c", codepoint);
-            } else {
-                printf("%c", g);
-            }
-        }
-        putln();
-    } else {
-        printf("unknown command\n");
-    }
-}

src/interpreter.c

@@ -0,0 +1,46 @@
+#include "unicode.h"
+#include "std.h"
+#include "interpreter.h"
+
+void interpret_handle_input_line(const uint8_t *s) {
+    
+    printf(">>> %s\n", s);
+    if (memcmp(s, "echo", 4) == 0) {
+        s += 4;
+        while (*s == ' ') {
+            s++;
+        }
+        if (*s != '"') {
+            printf("expected `echo` to be followed by enquoted string\n");
+            return;
+        }
+        s++;
+        // TODO escaped double quote
+        while (1) {
+            unicode_char c = utf8_next_asserted(&s);
+            if (c == 0) {
+                printf("unclosed delimiter\n");
+                return;
+            } else if (c == '"') {
+                break;
+            } else if (c == '\\') {
+                c = utf8_next_asserted(&s);
+                if (c != 'U') {
+                    printf("unknown escape character\n");
+                    return;
+                }
+                // TODO error handling
+                uint32_t codepoint = 0;
+                for (int i = 0; i < 4; i++) {
+                    codepoint = (codepoint << 4) | hexchar_to_num(utf8_next_asserted(&s));
+                }
+                printf("%c", codepoint);
+            } else {
+                printf("%c", c);
+            }
+        }
+        putln();
+    } else {
+        printf("unknown command\n");
+    }
+}

src/kernel.c

@@ -1,31 +1,3 @@
-/*
- * Copyright (C) 2017 - 2021 bzt (bztsrc@gitlab)
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy,
- * modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * This file is part of the BOOTBOOT Protocol package.
- * @brief A sample BOOTBOOT compatible kernel
- *
- */
-
 #include <stdbool.h>
 #include <stdint.h>
 #include <cpuid.h>

src/x86_64/ps2_driver.c

@@ -219,7 +219,8 @@ void port1_handler(void) {
 }
 
 void port2_handler(void) {
-	DEBUG_PRINTF("keycode from port 2: %X8\n", ps2_read_data());
+	uint8_t data = ps2_read_data();
+	DEBUG_PRINTF("keycode from port 2: %X8\n", data);
 }
 
 #define PS2_INIT_PRINT