diff --git a/.gitignore b/.gitignore
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+*.labels
+*.obj
+*.OBJ
+*.bin
+*.tmp
+tmp/
+build/
+*.lst
+*.sld
+
diff --git a/README.md b/README.md
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+# Ocean-240.2 ROM Sources 
+
+Source codes of CP/M and Monitor for Ocean-240.2 personal computer.
+
+Source codes in Z80 mnemonics, but limited for i8080 instruction set.
+
+
+## Compile:
+
+To compile sources, use [sjasmplus Z80 assembler](https://github.com/z00m128/sjasmplus).