37 lines
1.8 KiB
C
37 lines
1.8 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#define PARITY(v) __builtin_parity(v)
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#define SET_ZF(v) \
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flg = ((v) == 0 ? (flg|ZF) : (flg&~ZF))
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#define SET_SF(v) \
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flg = ((long)(v) < 0 ? (flg|SF) : (flg&~SF))
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#define SET_PF(v) \
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flg = (PARITY(v) == 1 ? (flg|PF) : (flg&~PF))
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#define SET_ZSF(v) \
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SET_ZF(v); \
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SET_SF(v)
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#define SET_ZSPF(v) \
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SET_ZF(v); \
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SET_SF(v); \
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SET_PF(v)
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#define COMPARE(v1, v2) \
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ulong _u1 = (ulong)v1, _u2 = (ulong)v2; \
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long _s1 = (long)v1, _s2 = (long)v2; \
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\
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if (_u1 < _u2) flg |= CF; \
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else flg &= ~CF; \
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\
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if ( ((_s1 < 0) && (_s1 > LONG_MAX + _s2)) \
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|| ((_s2 > 0) && (_s1 < LONG_MIN + _s2)) ) \
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flg |= OF; \
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else flg &= ~OF; \
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SET_ZSF(_u1 - _u2);
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