Update readme

README.md

@@ -1,2 +1,96 @@
-# SA1-Root
-Base pack of patches for activating SA-1 for many different games.
+```
+  _____             __   _____             _   
+ / ____|  /\       /_ | |  __ \           | |  
+| (___   /  \ ______| | | |__) |___   ___ | |_ 
+ \___ \ / /\ \______| | |  _  // _ \ / _ \| __|
+ ____) / ____ \     | | | | \ \ (_) | (_) | |_ 
+|_____/_/    \_\    |_| |_|  \_\___/ \___/ \__|
+    Version 1.0              by Vitor Vilela
+```
+
+SA-1 Root is the base pack of patches for activating and using SA-1
+on many different games. SA-1 Root currently has patches for the
+following games:
+
+* [Gradius III](Gradius-III) v1.4
+* Super Mario World ([SA-1 Pack only](https://github.com/VitorVilela7/SA1-Pack))
+
+What is it?
+===========
+
+SA-1 is a co-processor used on some special SNES games, made to work together
+with the Super NES CPU and enhance its processing speed, graphics and memory.
+
+With its base 10.74 MHz clock, the SA-1 CPU is four times faster than the
+normal SNES CPU processing. The SA-1 CPU and SNES CPU also runs
+simultaneously, which can result in five times faster processing over game with
+a standard cart setup. With that much power, the Super Accelerator System (SAS)
+can be used to process game engines much faster than the normal, allowing more
+sprites to be processed at once, more in-game effects, faster loading and much
+more.
+
+SA-1 Root not just activates the co-processor, but also modifies a good part of
+the game engine to use and explore the chip features, which gives an extreme
+boost to the overall performance of the game.
+
+## System Features
+* 16-bit 65c816 processor clocked at 10.74 MHz.
+* 2 kB fast internal work memory (I-RAM), clocked at 10.74 MHz.
+* Multi-processor processing, with parallel operating mode and memory sharing
+control.
+* Large capacity memory, with a total capability of 8 MB of ROM clocked at
+10.74 MHz and 256 kB of BW-RAM, clocked at 5.37 MHz.
+* High speed arithmetic hardware of multiplication, division and cumulative
+sum.
+* Bitmap and Character Conversion functions for fast graphics manipulation.
+* Custom DMA circuit for fast transfers between ROM, I-RAM and BW-RAM.
+* Variable-Length Bit data processing for enhanced algorithms such as graphics
+and data compression.
+* Super MMC memory mapping capabilities for BW-RAM and bank switching for
+multiple ROM image access and mirroring.
+
+## Differences with SA-1 Pack
+
+SA-1 Root is intended to be the base pack for enabling SA-1 on the games
+and optimizing it. SA-1 Pack is intended to be a full featured pack that
+not just enables SA-1 and accelerate the game, but also improve the game
+engine and provide additonal tools for ROM hacking.
+
+For example, Super Mario World's SA-1 Pack doubles the maximum phisical
+amount of allowed enemies on screen and includes different shared
+routines for additional SA-1 features.
+
+Compatibility
+=============
+
+SA-1 Root is warranted to work with real hardware, including SA-1 carts
+plus the most up-to-date SNES emulators including bsnes and Snes9x.
+
+ZSNES is not compatible with the SA-1 Root patches.
+
+Credits
+=======
+
+SA-1 Root wouldn't be that awesome without help from these people:
+
+* indcsion (additional testing)
+* Vitor Vilela (crazy author that did most of the patches)
+* You (for using it :D)
+
+Useful Links
+============
+
+#### Technical documents
+
+Useful documents for understanding SA-1:
+
+* SNES Dev. Book: https://www.romhacking.net/docs/226/
+* SA-1 Registers: https://wiki.superfamicom.org/sa-1-registers
+* SA-1 Doc: https://github.com/VitorVilela7/SNES-SA-1-doc/
+
+#### Personal
+
+You can contact make though the following links:
+
+* My Github profile: https://github.com/VitorVilela7
+* My Twitter profile: https://twitter.com/HackerVilela