Terminal

git-svn-id: https://spexeah.com:8443/svn/Asuro@214 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c

src/console.pas

@@ -77,6 +77,8 @@ procedure writebin32ln(b : uint32);
 procedure writebin32ex(b : uint32; attributes : char);
 procedure writebin32lnex(b : uint32; attributes : char);
 
+procedure backspace;
+
 function combinecolors(Foreground, Background : TColor) : char;
 
 procedure _increment_x();
@@ -440,6 +442,14 @@ begin
      outb($3D5, b);
 end;
 
+procedure backspace;
+begin
+     Dec(Console_Cursor.X);
+     writechar(' ');
+     Dec(Console_Cursor.X);
+     _update_cursor();
+end;
+
 procedure _increment_x(); [public, alias: '_console_increment_x'];
 begin
      Console_Cursor.X:= Console_Cursor.X+1;

src/kernel.pas

@@ -28,22 +28,28 @@ uses
      lmemorymanager,
      tss,
      scheduler,
-     PCI;
+     PCI,
+     Terminal;
  
 procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall;
  
 implementation
 
+procedure temphook(ignored : TKeyInfo);
+begin
+   Terminal.run;
+end;
+
 procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall; [public, alias: 'kmain'];   
 var
-   c    : uint8;
-   z    : uint32;
-   dds  : uint32;
-   pint : puint32;
-   pint2 : puint32;
+   c               : uint8;
+   z               : uint32;
+   dds             : uint32;
+   pint            : puint32;
+   pint2           : puint32;
    keyboard_layout : array [0..1] of TKeyInfo;
-   i : uint32;
-   cEIP : uint32;
+   i               : uint32;
+   cEIP            : uint32;
    
 begin
      multibootinfo:= mbinfo;
@@ -105,7 +111,10 @@ begin
      console.writestring('Total Memory = ');
      console.writeint(((mbinfo^.mem_upper + 1000) div 1024) + 1);
      console.writestringln('MB');
-     console.setdefaultattribute(console.combinecolors(lYellow, Black));
+     console.setdefaultattribute(console.combinecolors(White, Black));
+     console.writestringln('');
+     console.writestringln('Press any key to boot in to Asuro Terminal...');
+     keyboard.hook(@temphook);
      util.halt_and_dont_catch_fire;
 end;
  

src/terminal.pas

@@ -0,0 +1,52 @@
+unit terminal;
+
+interface
+
+uses
+    console,
+    keyboard;
+
+var
+    buffer : array[0..1024] of byte;
+    bIndex : uint32 = 0;
+
+procedure run;
+
+implementation
+
+procedure process_command;
+begin
+    console.writecharln(' ');
+    console.writestring('Asuro#> ');
+    bIndex:= 0;
+end;
+
+procedure key_event(info : TKeyInfo);
+begin
+    if (info.key_code >= 32) and (info.key_code <= 126) then begin
+        if bIndex <= 1024 then begin
+            buffer[bIndex]:= info.key_code;
+            inc(bIndex);
+            console.writechar(char(info.key_code));
+        end;
+    end; 
+    if info.key_code = 8 then begin //backspace
+        if bIndex > 0 then begin
+            console.backspace;
+            dec(bIndex);
+            buffer[bIndex]:= 0;
+        end;
+    end;
+    if info.key_code = 13 then begin //return
+        process_command;
+    end;
+end;
+
+procedure run;
+begin
+    keyboard.hook(@key_event);
+    console.clear();
+    console.writestring('Asuro#> ');
+end;
+
+end.