* PUSH and POP instructions utilize a 16-bit operand and the high-order byte is always pushed first and popped last. PUSH HL is PUSH H then L. POP HL is POP L then H.
* ADD SP,e takes 4 cycles, while LDHL SP,e takes only 3 cycles.
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== Weblinks ==
*[https://github.com/SingleStepTests Tom Harte's SingleStepTests]
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