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Z80: Analyze flow through RES and SET correctly

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This commit is contained in:
Karol Stasiak 2018-08-06 19:20:07 +02:00
parent 86ce1d42f3
commit f045f7f4c2
1 changed files with 3 additions and 3 deletions
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6
src/main/scala/millfork/assembly/z80/ZLine.scala
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@ -726,9 +726,9 @@ case class ZLine(opcode: ZOpcode.Value, registers: ZRegisters, parameter: Consta
case _ => false
}
case op if ZOpcodeClasses.RES_or_SET(op) => registers match {
case OneRegister(MEM_HL) => r == H || r == L
case OneRegister(MEM_IX_D) => r == IXH || r == IXL
case OneRegister(MEM_IY_D) => r == IYH || r == IYL
case OneRegister(MEM_HL) => false
case OneRegister(MEM_IX_D) => false
case OneRegister(MEM_IY_D) => false
case OneRegister(s) => r == s
case OneRegisterOffset(s, _) => r == s
case _ => false