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README.md

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+# README
+
+This repository contains multiple small CPUs, simulated in Logisim.
+
+## Models
+
+### cpu8_v1
+
+Extremely simple 8-bit CPU with 6 arithmetic (ADD, SUB) and logical (AND, OR, NAND, NOR) operations, conditional jumps are also supported.
+
+The CPU has 6 Registers:
+- 1x Constant loading
+- 2x ALU operand
+- 1x ALU result
+- 2x General purpose
+
+The program is read from a readonly memory (ROM).
+
+## Programming
+
+In [this repository](https://gitlab.com/ChUrl/logisim-assembler) I implemented a simple assembler, to make programming the CPUs easier.
+The assembler versions (branches) match with the CPU names.