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Couple of small changes in LIKELY/UNLIKELY usage.

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon
2017-12-05 21:40:23 +00:00
parent 6a47f710b9
commit 3d88a8f6d1
2 changed files with 7 additions and 7 deletions
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12
Intel8080/src/Intel8080.cpp
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@@ -297,7 +297,7 @@ int EightBit::Intel8080::execute(uint8_t opcode) {
execute(x, y, z, p, q); execute(x, y, z, p, q);
if (cycles() == 0) if (UNLIKELY(cycles() == 0))
throw std::logic_error("Unhandled opcode"); throw std::logic_error("Unhandled opcode");
return cycles(); return cycles();
@@ -416,13 +416,13 @@ void EightBit::Intel8080::execute(int x, int y, int z, int p, int q) {
decrement(f, operand); decrement(f, operand);
R(y, a, operand); R(y, a, operand);
addCycles(4); addCycles(4);
if (y == 6) if (UNLIKELY(y == 6))
addCycles(7); addCycles(7);
break; break;
} case 6: // 8-bit load immediate } case 6: // 8-bit load immediate
R(y, a, fetchByte()); R(y, a, fetchByte());
addCycles(7); addCycles(7);
if (y == 6) if (UNLIKELY(y == 6))
addCycles(3); addCycles(3);
break; break;
case 7: // Assorted operations on accumulator/flags case 7: // Assorted operations on accumulator/flags
@@ -461,11 +461,11 @@ void EightBit::Intel8080::execute(int x, int y, int z, int p, int q) {
} }
break; break;
case 1: // 8-bit loading case 1: // 8-bit loading
if (z == 6 && y == 6) { // Exception (replaces LD (HL), (HL)) if (UNLIKELY(z == 6 && y == 6)) { // Exception (replaces LD (HL), (HL))
halt(); halt();
} else { } else {
R(y, a, R(z, a)); R(y, a, R(z, a));
if ((y == 6) || (z == 6)) // M operations if (UNLIKELY((y == 6) || (z == 6))) // M operations
addCycles(3); addCycles(3);
} }
addCycles(4); addCycles(4);
@@ -500,7 +500,7 @@ void EightBit::Intel8080::execute(int x, int y, int z, int p, int q) {
UNREACHABLE; UNREACHABLE;
} }
addCycles(4); addCycles(4);
if (z == 6) if (UNLIKELY(z == 6))
addCycles(3); addCycles(3);
break; break;
case 3: case 3: