Merge pull request #81 from rikardn/CHRGET

Add MOVCHG, CHRGET and CHRGOT

strings/61D0034CFB

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+fragment + BNE 03 + JMP fragment
+
+Fragments of a long conditional jump - trivial

strings/7AD002E67BAD

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+$7A + BNE 2 + INC $7B  + LDA(abs)
+
+Fragment of common code to increment a 16-bit pointer, trivial and non-copyrightable

strings/94E37BE3

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+$E394 + $E37B   Address of basic cold start and address of basic warm start
+
+Addresses to well known functions. Trivial.

strings/A000911460

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+LDY #0 + BCC $14 + RTS
+
+Fragment of special case termination of subroutine. Trivial

strings/CA10F860

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+DEX + BPL back + RTS
+
+Loop fragment. Not copyrightable.