Allow for larger than 255 byte commandline

Author: a1ive

Makefile

@@ -1,6 +1,6 @@
 # Versioning information
 #
-VERSION := v3.0.1
+VERSION := v3.0.2
 WIMBOOT_VERSION := v2.8.0
 SBAT_GENERATION := 1
 

README.md

@@ -123,6 +123,7 @@ menuentry "Boot Windows NT6+ VHD/VHDx" {
 
 ## Kernel parameters
 
+The maximum size of the command line without the terminating zero is 4096 bytes.  
 Boolean values can be expressed as `yes` and `no`, `true` and `false`, `on` and `off`, or `1` and `0`.  
 Spaces in file paths should be replaced with `:`.  
 Slashes in file paths are automatically converted to backslashes.  

prefix.S

@@ -90,7 +90,7 @@ header:
 
 	.org	0x206
 version:
-	.word	0x203	/* Version 2.03 */
+	.word	0x206	/* Version 2.06 */
 
 	.org	0x20e
 kernel_version:
@@ -116,6 +116,10 @@ cmd_line_ptr:
 ramdisk_max:
 	.long	0xffffffff
 
+	.org	0x238
+cmdline_size:
+	.long	4096
+
 version_string:
 	.asciz	VERSION