z80:Opcodes:CPI

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Multiple instructions combined into one. CPD does these things in this order:

  1. CP (HL)
  2. INC HL
  3. DEC BC

Syntax

No operands.

   CPI

Effects

The carry is preserved, N is set and all the other flags are affected as defined. P/V denotes the overflowing of BC, while the Z flag is set if A=(HL) before HL is increased.

Uses

See CPIR for one example use.

T-States

16 t-states

See Also

BIT,CALL,CP,CPD,CPDR,CPIR,JP,JR