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+Prototype Processor aSsembler
+
+computer architecture[1] is by qubane[2];
+assembler is by nakidai[3] and released in public domain
+
+pros:
+- factored out emit() function so it can be replaced with something more
+  suitable for your specific use case
+- case insensitive where not needed
+- `inc' mnemonic that includes some other file
+cons:
+- doesn't handle comments very good, but still (start line with `; ' to make
+  one)
+- code is garbage a little
+other:
+- lda instruction uses atoi for number converting, hence number base there is 10
+- register check is case insensitive by 1 letter, so e.g. ACC can be named as a,
+  AcC, acC, AR etc
+
+[1] https://docs.google.com/spreadsheets/d/1ESjhZcvpGmuHCNxgOESfSy-MXQoqrMqCyCDJyvDhRMM/edit?usp=sharing
+[2] https://github.com/qubane
+[3] https://nakidai.ru