thanks to the following small patch to genblitter.c, i've gained ~3 fps.. (on gp2x/psp)
99c99 < printf("for (j = 0; j < b->vblitsize; j++) {\n"); --- > printf("for (j = b->vblitsize; j--; ) {\n"); 176c176 < printf("for (j = 0; j < b->vblitsize; j++) {\n"); --- > printf("for (j = b->vblitsize; j--; ) {\n"); -GnoStiC/bronx. "uae2x and pspuae developer"