forked from sin365/AxibugEmuOnline
MAME: NEC Cpu 大量手动内联CLKM,CLKS指令 并将必然位运算固定结果常量化,减少计算
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@ -428,9 +428,25 @@ namespace cpu.nec
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}
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static byte[] JMP_table = new byte[] { 3, 10, 10 };
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//public void JMP(bool flag)
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//{
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// int tmp = (int)((sbyte)FETCH());
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// if (flag)
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// {
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// //使用外部定义减少GC压力
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// //byte[] table = new byte[] { 3, 10, 10 };
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// I.ip = (ushort)(I.ip + tmp);
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// pendingCycles -= JMP_table[chip_type / 8];
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// //PC = (I.sregs[1] << 4) + I.ip;
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// return;
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// }
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//}
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//手动内联
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public void JMP(bool flag)
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{
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int tmp = (int)((sbyte)FETCH());
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//int tmp = (int)((sbyte)FETCH());
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int tmp = (sbyte)(ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0));
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if (flag)
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{
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//使用外部定义减少GC压力
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