** Parodius Update ** The team - @GabrielPyron , @VTRCHIPMUSIC and I have all been flatout busy .. still we have had time to do some wee bits on Parodius for Sega Genesis. Since last update : More colors !! the background now uses Interupt trickery to have 19 colors so far (from 16) . Just got it working today as the lazer interupts colliding with the color change interupts had to be sorted out. So there are more 3 more blues shades in the background. You can see index 0 and index 11 in the CRAM viewer re-using color indexes on the RHS as the screen draws. Theres about 9 interupts driving lazers and background updates now, the cpu sorting / setup is costing about 8 %cpu but I'll live with it for now. Stage 1 track reworked by Vector, reduced vgm size to 101 KB ! ( xgm2 further reduces this to 53kb ) And it also includes the choirs, recreated in FM and PSG sound. He promises further enhancements to come too. Vic Viper Shot and Lazer SFX added , Speed-Up , Lazer Announcer speed samples added . I'm very happy with how the voices turned out in particular , Pyron has supplied modified samples to get better volume levels. Background collisions for the standard shot implemented , next I'll do the lazer . More of the vic viper power ups and Power up bar hud / animating water to add yet. #SGDK #Parodius #SegaMegadrive #SegaGenesis

Well productive day in SOTA , albiet not quite where I want it to be yet performance wise. The black gap about 1/3 way down in the VRAM is the saved tiles using SingleTile Streaming vs MetaTile streaming . I estimate its 160 tiles or so , which is a big deal when vram is tight as it is in this game . I've written ~ 75% of the hotpath in Inline assembly , made a new DMA queue for single tiles that does a DMA Queue for ~ 140 cycles ( very cheap for a DMA queue ) and its all working nicely - just not fast enough for my liking yet. Single tile streaming without tweaks the workload is about 4x metatile streaming ( my metatiles are 4 tile blocks ) . Im running a just over 2x at present here with single tile streaming so getting there. The isssue at present is its still updating in metatile chunks (4 tile chunks) so worst case we hit a row update and on worst frames it can do 60+ tiles easily ( row updates are 22 metatiles ) . So 60_+ dma calls + the dma time etc .. its over my ideal cpu allocation for it . Next steps is splitting the metatiles in half , or i'll virtualise it to a tilemap first so we I update half the tiles at once. I literally need to do this so the mid level boss can have the BG loaded at same time haha .. the squeeze is real !! #SGDK #SegaMegadrive #SegaGenesis