Gameboy Emulator Blargg Test Progress 01-special.gb 114947C8 DAA Failed #6 02-interrupt.gb Passed 03-op sp,hl.gb Passed 04-op r,imm.gb Passed 05-op rp.gb Passed 06-ld r,r.gb Passed 07-jr,jp,call,ret,rst.gb Passed 08-misc instrs.gb Passed 09-op r,r.gb Passed 10-bit ops.gb Passed 11-op a,(hl).gb 27 Failed Helpful links General http://bgb.bircd.org/pandocs.htm Half carry explanation https://www.reddit.com/r/EmuDev/comments/4clh23/trouble_with_halfcarrycarry_flag/ Instructions http://www.devrs.com/gb/files/GBCPU_Instr.html http://www.pastraiser.com/cpu/gameboy/gameboy_opcodes.html Clock Timing https://github.com/AntonioND/giibiiadvance/blob/master/docs/TCAGBD.pdf