Minor improvements

boot.s

@@ -75,4 +75,4 @@ _start:
 
 # Set the size of the _start symbol to the current location '.' minus its start.
 # This is useful when debugging or when you implement call tracing.
-.size _start, . - _start
+.size _start, . - _start

main.nim

@@ -6,14 +6,14 @@ type
 proc kmain(mb_header: PMultiboot_header, magic: int) {.exportc.} =
   if magic != 0x2BADB002:
     discard # Something went wrong?
-  
+
   var vram = cast[PVIDMem](0xB8000)
   screenClear(vram, Yellow) # Make the screen yellow.
-  
+
   # Demonstration of error handling.
   var x = len(vram[])
   var outOfBounds = vram[x]
-  
+
   let attr = makeColor(Yellow, DarkGrey)
   writeString(vram, "Nim", attr, (25, 9))
   writeString(vram, "Expressive. Efficient. Elegant.", attr, (25, 10))

readme.markdown

@@ -31,7 +31,7 @@ You are required to have:
 
 * QEMU
 * a C and asm cross-compiler for i586
-* Nim from git HEAD
+* Nim 0.10.2 or higher
 * nimble (*)
 
 \* You can always grab the nake library manually from [here](https://github.com/fowlmouth/nake).
@@ -53,9 +53,9 @@ and build the cross compiler. Then perform the following actions:
 ```bash
 $ wget ftp://sourceware.org/pub/binutils/snapshots/binutils-2.24.51.tar.bz2
 $ tar -xf binutils-2.24.51.tar.bz2
-$ mkdir build 
+$ mkdir build
 $ ./binutils-2.24.51/configure --target=i586-elf --prefix=$PWD/build/ --disable-nls
-$ make
+$ make -j4
 $ make install
 ```
 
@@ -68,7 +68,7 @@ You may then grab the GCC source and build it:
 $ wget ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.2/gcc-4.9.2.tar.bz2
 $ tar -xf gcc-4.9.2.tar.bz2
 $ ./gcc-4.9.2/configure --target=i586-elf --prefix=$PWD/build/ --disable-nls --enable-languages=c --without-headers
-$ make all-gcc
+$ make all-gcc -j4
 $ make install-gcc
 ```