Releases · tsalvo/nes-emu-ios

25 Jun 01:24

tsalvo

0.0.5

7ed3c85

0.0.5 Latest

Latest

CPU:

instruction table updates - add timings for alternate SBC function and NOPs, and all illegal opcodes
implement all illegal 6502 instructions

Mapper 4 (MMC3):

support the TNROM variant which is used in some Famicom Games (notably FFIII), which has 8KB CHR RAM instead of CHR ROM

Mapper 5 (MMC5):

implement additional PRG and CHR banking modes
smaller save states
additional safety checks for save state loading

Mapper 7 (AxROM):

fix an issue where a ROM could request a banking offset beyond what the cartridge offers
save state format update

Mapper 9 (MMC2):

fix an issue where a ROM could request a banking offset beyond what the cartridge offers

Mapper 11 (ColorDreams):

fix an issue where a ROM could request a banking offset beyond what the cartridge offers

Mapper 66 (GxROM):

fix an issue where a ROM could request a banking offset beyond what the cartridge offers
fix banking issues due to this mapper originally being combined with ColorDreams mapper. it is different enough that it Neds its own file.

Mapper 78:

fix an issue where a ROM could request a banking offset beyond what the cartridge offers

This should fix compatibility with some games. More test ROMs are passing.

Assets 3

15 Jun 04:21

tsalvo

0.0.4

fb965f4

0.0.4

CPU:

handle some 6502 addressing mode special cases

MMC1 Mapper:

Fix PRG RAM banking offset (was using 4KB banking instead of 8KB)
Fix out of bounds issues where a ROM could request a bank number that was higher than what's available on the cartridge

This release fixes some CPU Test ROMs, some MMC1 Holy Diver Batman 0.0.1 Test ROMS, as well as a bug with F-1 Race where extra road was drawn on the sides. This might improve compatibility with some other games too.

Assets 3