Snezziboy v0.22

***wraggster*** · June 18th, 2006, 01:38

Snezziboy the SNES Emulator for the Gameboy Advance (nintendo ds too) has been updated, heres whats new:

Fixed the JMP ($xxxx) and the JML [$xxxx] instruction to read the indirect addresses from bank zero instead of the current data bank. (Aero fighters now work)

Shifted the horizontal offset by 8 pixels to the right so games now look generally centralized

Modified the IO for WRAM write at IO addresses $2180-3 to behave as Snes9x

Fixed the interrupts to push the correct program counter onto the stack, and the RTI instruction to pop the correct program counter from the stack. (Earthworm Jim now works)

Fixed the $213C/D registers to generate the H/V counters correctly. (Zelda-A Link to the Past now works, though in the name entry screen, the name selection still
does not move, and in-game text is invisible...)

Fixed the COP instruction to fire a COP interrupt
(Illusion of Gaia now intros correctly)

Fixed the MVP/MVN instruction to increment the cycle counter correctly.

Fixed the DMA such that source DMA address is incremented and the DMA size is set to 0, after each DMA channel read/write is complete. (Contra's intro and in-game background tiles display correctly now) (FF2 non-mode 7 backgrounds now displays correctly) (Illusion of Gaia title screens appear)

Added rendering for Modes 4 and 5. (Secret of Mana name entry screen requires mode 5, and now appears better. Due to
double horizontal resolution though, the text appears but remains unreadable)

Added the $2139/A registers to read the VRAM. (Illusion of Gaia seems to works perfectly) (MegamanX, Megaman7 screens get restored after pressing start)

Added option for enabling backdrop (With this option set to Yes, Super Mario World backgrounds will not appear black)

Others:

Provided additional SnezziDebugger.exe that can be used to debug SNES games to search for speed hacks, SPC patches and other patches.

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