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@@ -1,28 +1,47 @@
-<img width="140" height="52" align="left" style="float: left; margin: 0 10px 0 0;" alt="9086 logo" src="https://git.efthimiskritikos.com/Efthimis/Testing/raw/branch/master/9086.svg">
-
-# 9086
+<img width="186" height="70" style=" margin: 10px 0px 10px 10px;" alt="9086 logo" src="readme_files/9086_design1.svg">
 
 
-### Most instructions follow this format
-| 6bit  | 1bit      | 1bit |      2bit       |     3bit     | 3bit |
-| ----- | --------- | ---- | --------------- | ------------ | ---- |
-| OpCod | Direction | Size | Addressing mode | Register ID  | Specific addressign mode|
+A CPU that aims to be binary compatible with the 8086 ISA, focused on optimisation and flexibility.
 
-| Register ID | Register Name|
-|:-------------:|:-------------:|
-|0 0 0 |AL AX|
-|0 0 1 |CL CX|
-|0 1 0 |DL DX|
-|0 1 1 |BL BX|
-|1 0 0 |AH SP|
-|1 0 1 |CH BP|
-|1 1 0 |DH SI|
-|1 1 1 |BH DI|
+### Progress
 
-* [ ] Not checked
-* [ ] still checked
-* [almost] checked
-* [x] checked
+* [ ] 8086
+  * [X] Executing code
+  * [X] Is Turing complete
+  * [ ] Can boot up MS-DOS / FreeDOS
+  * [ ] Is completely binary compatible
+  * [X] Is pipelined
+  * [ ] Is Out of Order
+  * [ ] Is superscalar
+  * [ ] Has been successfully synthesized
 
-|.. |.. |.. |.. | O | D | I | T | S | Z |.. | A |.. | P |.. | C |
-|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
+### Simulating it
+Both Verilator and Icarus Verilog can be used for simulation. You can select which one you want with the SIM variable on [common.mk](./common.mk)
+Specifically this list shows the software needed and the versions used during development (other versions should work as well)
+
+* Icarus Verilog : version 12.0  OR **(preferred)** Verilator : 5.016
+* bin86 : 0.16.21
+* GNU Make : 4.4.1
+* xxd : 2022-01-14
+* POSIX coreutils : GNU coreutils 9.4
+
+After that you can run `make` on the top level directory and it should build everything and start the simulation
+
+### High level design overview
+
+<img width="700" style=" margin: 10px 0px 10px 10px;" alt="9086 logo" src="readme_files/9086_overview.svg">
+
+### License
+All parts of this project and files in this repository are licensed under the GNU General Public License version 3 or later
+Efthymios Kritikos is the copyright owner for all files except the following:
+| ------------------------------------------------------- | ----------- |
+| system/fpga_config/OrangeCrab_r0.2.1/pin_constraint.pcf | Greg Davill |
+
+### Version names
+The version name consist of three numbers:
+
+1. The CPU that this version aims to be compatible with
+1. The specific milestone
+1. Patch level
+
+For example v1.3.2 aims to support 80186 code, is on the fourth milestone and has 2 bug fixes since the milestone was reached.