any tips, from which program i can crap the code?   the blm code: http://ucapps.de/mios/blm_scalar_v1_0a.zip the LEDs on the Matrix-Board  connectetd to J3_1 going to Scalar-Board looking very simular to the SID-Matrix Shematic, except the Transistors, and without the 8 Resistors. & this code is what i see a 8Bit app... so the way to go, i think?   A other Idea, get it from the ASM - codet - SID Application SID ASM code: http://ucapps.de/mios/midibox_sid_v2_043.zip because the doc