VORTEX_MIX_INVOL_B
VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
VORTEX_MIX_INVOL_B +
VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
addr = VORTEX_MIX_INVOL_B + 0x7fc;
hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),