Now README is more beautiful :)

README.md

@@ -1 +1,18 @@
-# EmuCPU
+# EmuCPU
+
+![EmuCPU](https://raw.githubusercontent.com/EmuKit/EmuCPU/master/.github/imgs/diagram.png)
+
+## What is EmuCPU?
+EmuCPU is an emulator for a CPU I designed. 
+
+* It's 16 bit
+* It has 2 registers (A and B) and a Program Counter
+* Its ISA has 6 instructions
+* Program it's stored in a Memory, which size is defined at compile time.
+
+## What is the ISA?
+The ISA is the instruction set of the CPU. It has 6 instructions, MOV, ADD, SUB, MUL, DIV and INC.
+Math it's done with using boolean logic, not C math operators.
+
+## How do I use it?
+There's not a method to load a program from a file, so you have to write it in the code. In main.c there's an array called 'prog' which contains the program. You can write something in an ASM-like language.

lib/isa.h

@@ -15,6 +15,7 @@
 #define SUB 0x0003
 #define MUL 0x0004
 #define DIV 0x0005
+#define INC 0x0006
 
 #define HLT 0xFAFB
 #define NUL 0x0000
@@ -25,7 +26,7 @@ void _ADD(uint16_t *restrict dst, const uint16_t *restrict v1, const uint16_t *r
 void _SUB(uint16_t *restrict dst, const uint16_t *restrict v1, uint16_t *restrict v2, uint32_t *restrict flags);
 void _MUL(uint16_t *restrict dst, const uint16_t *restrict v1, uint16_t *restrict v2, uint32_t *restrict flags);
 void _DIV(uint16_t *restrict dst, uint16_t *restrict v1, uint16_t *restrict v2, uint32_t *restrict flags);
-
+void _INC(uint16_t *restrict dst, uint32_t *restrict flags);
 
 
 #endif //ISA_H