mirror of https://github.com/bsnes-emu/bsnes.git
52 lines
1.5 KiB
C++
Executable File
52 lines
1.5 KiB
C++
Executable File
struct flag_t {
|
|
bool n, v, p, b, h, i, z, c;
|
|
|
|
inline operator unsigned() const {
|
|
return (n << 7) | (v << 6) | (p << 5) | (b << 4)
|
|
| (h << 3) | (i << 2) | (z << 1) | (c << 0);
|
|
}
|
|
|
|
inline unsigned operator=(uint8 data) {
|
|
n = data & 0x80; v = data & 0x40; p = data & 0x20; b = data & 0x10;
|
|
h = data & 0x08; i = data & 0x04; z = data & 0x02; c = data & 0x01;
|
|
return data;
|
|
}
|
|
|
|
inline unsigned operator|=(uint8 data) { return operator=(operator unsigned() | data); }
|
|
inline unsigned operator^=(uint8 data) { return operator=(operator unsigned() ^ data); }
|
|
inline unsigned operator&=(uint8 data) { return operator=(operator unsigned() & data); }
|
|
};
|
|
|
|
struct word_t {
|
|
union {
|
|
uint16 w;
|
|
struct { uint8 order_lsb2(l, h); };
|
|
};
|
|
|
|
inline operator unsigned() const { return w; }
|
|
inline unsigned operator=(unsigned data) { return w = data; }
|
|
|
|
inline unsigned operator++() { return ++w; }
|
|
inline unsigned operator--() { return --w; }
|
|
|
|
inline unsigned operator++(int) { unsigned data = w++; return data; }
|
|
inline unsigned operator--(int) { unsigned data = w--; return data; }
|
|
|
|
inline unsigned operator+=(unsigned data) { return w += data;; }
|
|
inline unsigned operator-=(unsigned data) { return w -= data;; }
|
|
|
|
inline unsigned operator|=(unsigned data) { return w |= data; }
|
|
inline unsigned operator^=(unsigned data) { return w ^= data; }
|
|
inline unsigned operator&=(unsigned data) { return w &= data; }
|
|
};
|
|
|
|
struct regs_t {
|
|
word_t pc;
|
|
union {
|
|
uint16 ya;
|
|
struct { uint8 order_lsb2(a, y); };
|
|
};
|
|
uint8 x, s;
|
|
flag_t p;
|
|
};
|