mirror of https://github.com/bsnes-emu/bsnes.git
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
struct Flag {
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inline operator uint() const {
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return (n << 7) | (v << 6) | (p << 5) | (b << 4)
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| (h << 3) | (i << 2) | (z << 1) | (c << 0);
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}
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inline auto operator=(uint data) -> uint {
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n = data & 0x80; v = data & 0x40; p = data & 0x20; b = data & 0x10;
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h = data & 0x08; i = data & 0x04; z = data & 0x02; c = data & 0x01;
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return data;
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}
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inline auto operator|=(uint data) -> uint { return operator=(operator uint() | data); }
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inline auto operator^=(uint data) -> uint { return operator=(operator uint() ^ data); }
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inline auto operator&=(uint data) -> uint { return operator=(operator uint() & data); }
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bool n, v, p, b, h, i, z, c;
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};
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struct Word {
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inline operator uint() const { return w; }
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inline auto operator=(uint data) -> uint { return w = data; }
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inline auto operator++() -> uint { return ++w; }
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inline auto operator--() -> uint { return --w; }
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inline auto operator++(int) -> uint { uint data = w++; return data; }
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inline auto operator--(int) -> uint { uint data = w--; return data; }
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inline auto operator+=(uint data) -> uint { return w += data;; }
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inline auto operator-=(uint data) -> uint { return w -= data;; }
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inline auto operator|=(uint data) -> uint { return w |= data; }
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inline auto operator^=(uint data) -> uint { return w ^= data; }
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inline auto operator&=(uint data) -> uint { return w &= data; }
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union {
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uint16_t w;
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struct { uint8_t order_lsb2(l, h); };
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};
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};
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struct Regs {
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Word pc;
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union {
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uint16_t ya;
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struct { uint8_t order_lsb2(a, y); };
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};
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uint8_t x, s;
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Flag p;
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};
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