* Implemented semi scrolling

* Bumped kernel version to 2.3.1

Author: Arun007coder

Include/Public_VAR.h

@@ -4,8 +4,8 @@
 inline char* OS_NAME = "SectorOS";
 
 inline char* KERNEL_NAME = "SectorOS";
-inline char* KERNEL_VERSION = "V2.2.2";
-inline char* KERNEL_BUILD = "Build: 2022-01-08";
+inline char* KERNEL_VERSION = "V2.3.1";
+inline char* KERNEL_BUILD = "Build: 2022-01-09";
 inline char* KERNEL_ARCH = "x86";
 
 inline char* SHELL_NAME = "SOSH";

Makefile

@@ -104,4 +104,4 @@ stopVBOX:
 .PHONY: clean
 clean:
 	@printf "\e[1;31mCleaning the object files...\n\e[0m"
-	@rm -f $(objects) SectorOS_Kernel.bin SectorOS.iso
+	@rm -f $(objects) CPU/shutdown.o SectorOS_Kernel.bin SectorOS.iso

kernel/kernel.cpp

@@ -700,9 +700,12 @@ void printf(char *str)
         if (y >= 25)
         {
             // ColourPrint(1);
+            char *foo = "                                                                               ";
             isused = true;
+            for (int i = 0; i != 80; i++)
+                foo[i] = VideoMemory[80 * 24 + i];
             for (y = 0; y < 25; y++)
-                for (x = 0; x < 80; x++)
+                for (x = 0; x < 79; x++)
                     VideoMemory[80 * y + x] = (VideoMemory[80 * y + x] & 0xFF00) | ' ';
             x = 0;
             y = 0;
@@ -717,7 +720,11 @@ void printf(char *str)
             printf(INTTOCHARPOINT(rtclock.month));
             printf("/");
             printf(INTTOCHARPOINT(rtclock.year));
-            printf("                        Type: Shell ");
+            printf("                        Type: Shell\n");
+            for (int i = 0; i != 80; i++)
+                VideoMemory[80 * 1 + i] = (VideoMemory[80 * 1 + i] & 0xFF00) | foo[i];
+            printf("\n");
+            play_sound(440);
         }
     }