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Use the same optimisation techniques on the Z80 header. Up to 233Mhz now.

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Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
This commit is contained in:
Adrian.Conlon
2017-06-29 21:35:52 +01:00
parent 3439523865
commit 8f57fac3ee
1 changed files with 11 additions and 12 deletions
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23
Z80/inc/Z80.h
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@@ -181,12 +181,12 @@ namespace EightBit {
case 5: case 5:
return HL2().low; return HL2().low;
case 6: case 6:
if (m_displaced) { if (!m_displaced) {
m_displacement = fetchByte(); m_memory.ADDRESS() = HL();
return DISPLACED(); return m_memory.reference();
} }
m_memory.ADDRESS() = HL(); m_displacement = fetchByte();
return m_memory.reference(); return DISPLACED();
case 7: case 7:
return a; return a;
default: default:
@@ -232,13 +232,12 @@ namespace EightBit {
} }
register16_t& HL2() { register16_t& HL2() {
if (m_displaced) { if (!m_displaced)
if (m_prefixDD) return HL();
return IX(); if (m_prefixDD)
// Must be FD prefix return IX();
return IY(); // Must be FD prefix
} return IY();
return HL();
} }
register16_t& RP2(int rp) { register16_t& RP2(int rp) {