Gebea Release 4
posted in Emulator Release by mfc on Sep 17th, 2004Gebea, a rapidly progressing GBA emulator for Windows, has been updated today! Here is what's new:
- 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)