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Discussion Starter · #1 ·
A couple days ago LiraNuna pointed out in this thread this new GBA emulator. Gebea is a plugin-based Gameboy Advance emulator for x86/Win32 computers. It is written in x86 assembly, C and Euphoria.

Here are the new changes:
CPU: Changed flag updates for instructions only affecting N and Z
CPU: All unsigned LDRH instructions now set the upper 16 bits to zero
CPU: r15 is pc+12 when used as an operand in a dataproc instruction with register-specified shift
CPU: r15 is pc+12 when used as the source register in an STR/STRH instruction
CPU: Fixed the carry flag for a bunch of instructions
CPU: Added ROR#0 (RRX)
CPU: Fixed initial state of flags
CPU: Fixed LDR instruction with r15 as Rd
GPU: Fixed the mode 3 scanline renderer
GPU: Added mode 5 support, with rotation and scaling
MMU: Added timer support (timer 2 and 3, prescalar mode)

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