SFB_ASIC_ROP
SFBWRITE32(asic, SFB_ASIC_ROP, 3); /* ROP_COPY */
SFBWRITE32(BUMP(p), SFB_ASIC_ROP, (v))
(*(uint32_t *)(BUMP(p) + SFB_ASIC_ROP) = (v))
*(uint32_t *)(asic + SFB_ASIC_ROP) = 3; /* ROP_COPY */