precalculate inverted stack mask; improve dynamic core stack functions
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2606
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5 changed files with 87 additions and 131 deletions
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@ -418,7 +418,7 @@ struct CPUBlock {
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GDTDescriptorTable gdt;
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DescriptorTable idt;
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struct {
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Bitu mask;
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Bitu mask,notmask;
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bool big;
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} stack;
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struct {
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