Gameboy: zBoy v0.50 :: AEP Emulation Page - Emulation News

zBoy v0.50 [04 Sep 2011]

zBoy has been entirely rewritten in C language, using SDL for input, video and timing routines,
Added support for 8x graphic scaling (which ends up with a game resolution of 1280x1152),
Added support for screensaver inhibition under Windows (--NOSCREENSAVER),
Palette customization has been hardcoded into zBoy (no support for external palette files anymore, but you can choose an alternative palette from a predefined set of palettes),
Fixed the time adjustment routine (it doesn´t speeds up over 100% of normal game speed after being late for some time),
Replaced the EPX graphic filter by Scale2x (slightly faster), and renamed EPX3 by Scale3x (which is the technically correct name),
Made the Scale2x scaling the default one,
Dropped DOS support,
Dropped fullscreen support,
Fixed the ADC opcode emulation (wasn´t setting the C flag when carry from bit 7)
this made all the Megaman serie playable,
Fixed the SBC opcode emulation (wasn´t setting the C and H flags properly),
Implemented the gameboy type checking via the FF00h joypad register,
Added the possibility to disable the graphic "Window" used in many games (by default under the F3 key),
Fixed a bug in IRQ generated by the coincidence register
was generating several IRQs in one scanline (now it generates only one IRQ for a matching scanline)
this made the intro of Prince of Persia working.