More minor changes

build.sh

@@ -22,5 +22,8 @@ cat build/calc.bin build/edit.bin > build/files.bin
 # Final binary
 cat build/bootloader.bin build/kernel.bin build/files.bin > build/kern.bin
 
+# Cleanup
+rm build/*[!kern].bin
+
 # Run QEMU
 qemu-system-x86_64 -drive format=raw,file="./build/kern.bin",index=0,media=disk -m 256M

src/fs/edit.asm

@@ -11,9 +11,8 @@ launch:
     mov si, controlsMsg
     call drawString
 
-    xor cx, cx
     mov di, hexCode
-
+    xor cx, cx      ; Clear counter
 getHexCh:
     xor ax, ax
     int 0x16
@@ -44,6 +43,7 @@ getHexCh:
     stosb
     mov dx, [hexByte]
     call printHexByte
+    inc byte [codeLen]
     xor cx, cx
     mov al, ' '
     mov ah, 0x0e
@@ -51,6 +51,7 @@ getHexCh:
     jmp getHexCh
 .backspace:
     mov byte [hexByte], 0
+    dec byte [codeLen]
     xor cx, cx
     cmp di, hexByte     ; Check if there's anything to delete
     je getHexCh         ; If not, ignore
@@ -116,6 +117,7 @@ backChars: db 8,8,8,'  ',8,8,0
 
 hexByte: db 0
 
+codeLen: db 0
 hexCode: times 256 db 0     ; Code buffer
     ret
 

src/kernel.asm

@@ -4,7 +4,7 @@ start:
     ; Save the drive number from stack
     mov byte [driveNumber], dl
 
-    mov bx, 0x8000
+    mov bx, 0x2000
     mov es, bx
     xor bx, bx
 

src/lib/disk.asm

@@ -0,0 +1,5 @@
+;
+; Loads a file from the filetable into a memory location
+;
+loadFile:
+