Write byte in GPU

[saku-koodari]

Code snippet 1:

                case 5:
                    _raster = value;
                    break; // TODO: in the source, there was break; missing. Find out whether it was on purpose or not.
                // OAM DMA
                case 6:
                    for (var i = 0; i < SCREEN_WIDTH; i++)
                    {
                        // var val = MMU.rb((value << 8) + i);
                        // _oam[i] = vval;
                        // UpdateOAM(0xFE00 + i, val);
                        throw new NotImplementedException("// TODO: uncomment lines above. NOTE: MMU.rd (memory.ReadByte)");
                    }
                    break;

[saku-koodari]

Code snippet 2:

                    // TODO: #1 Look the source (javascript) You can see, that 
                    //          there are used obj0 and obj1 instead object1 and object2.
                    //          Find out wheter that is done on purpose or not.
                    //
                    // TODO: #2 Combine cases below, due to they are higly similar.
                    //
                    // TODO: #3 You Enum again for those Colors

                // OBJ0 palette mapping
                case 8:
                    for (var i = 0; i < 4; i++)
                    {
                        switch ((value >> (i * 2)) & 3)
                        {
                            case 0: _palette.Object1[i] = 255; break;
                            case 1: _palette.Object1[i] = 192; break;
                            case 2: _palette.Object1[i] = 96; break;
                            case 3: _palette.Object1[i] = 0; break;
                        }
                    }
                    break;

                // OBJ1 palette mapping
                case 9:
                    for (var i = 0; i < 4; i++)
                    {
                        switch ((value >> (i * 2)) & 3)
                        {
                            case 0: _palette.Object2[i] = 255; break;
                            case 1: _palette.Object2[i] = 192; break;
                            case 2: _palette.Object2[i] = 96; break;
                            case 3: _palette.Object2[i] = 0; break;
                        }
                    }
                    break;

[saku-koodari]

As you can see, colors are hardcored. They have to softcode.

[saku-koodari]

Commit d6a0756 softcoded colors.