4 ms·
GameBoy Emulation in JavaScript: The CPU (2010)
- nielskrijger 11y agoReally? CPr_b: function() { var i = Z80._r.a; // Temp copy of A i -= Z80._r.b; // Subtract B Z80._r.f |= 0x40; // Set subtraction flag if(!(i & 255)) Z80._r.f |= 0x80; // Check for zero if(i < 0) Z80._r.f |= 0x10; // Check for underflow Z80._r.m = 1; Z80._r.t = 4; // 1 M-time taken } Who anybody other than a machine will be able to make sense of that?