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Add a couple of LIKELY/UNLIKELY specifications to the 6809 processor.

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon 2018-08-25 12:51:43 +01:00
parent c105ee37bf
commit ae66b39dac
1 changed files with 6 additions and 6 deletions
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12
MC6809/src/mc6809.cpp
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@ -18,13 +18,13 @@ int EightBit::mc6809::step() {
if (LIKELY(powered())) { if (LIKELY(powered())) {
m_prefix10 = m_prefix11 = false; m_prefix10 = m_prefix11 = false;
ExecutingInstruction.fire(*this); ExecutingInstruction.fire(*this);
if (lowered(RESET())) if (UNLIKELY(lowered(RESET())))
handleRESET(); handleRESET();
else if (lowered(NMI())) else if (UNLIKELY(lowered(NMI())))
handleNMI(); handleNMI();
else if (lowered(FIRQ()) && !(CC() & FF)) else if (UNLIKELY(lowered(FIRQ()) && !(CC() & FF)))
handleFIRQ(); handleFIRQ();
else if (lowered(IRQ()) && !(CC() & IF)) else if (UNLIKELY(lowered(IRQ()) && !(CC() & IF)))
handleIRQ(); handleIRQ();
else else
execute(fetchByte()); execute(fetchByte());
@ -71,9 +71,9 @@ void EightBit::mc6809::handleFIRQ() {
// //
int EightBit::mc6809::execute(uint8_t opcode) { int EightBit::mc6809::execute(uint8_t opcode) {
if (m_prefix10) if (UNLIKELY(m_prefix10))
execute10(opcode); execute10(opcode);
else if (m_prefix11) else if (UNLIKELY(m_prefix11))
execute11(opcode); execute11(opcode);
else else
executeUnprefixed(opcode); executeUnprefixed(opcode);