u32g_sub 3966 ext/uvector/uvector.c r = u32g_sub(v0, v1, clamp); u32g_sub 3981 ext/uvector/uvector.c r = u32g_sub(v0, v1, clamp); u32g_sub 3995 ext/uvector/uvector.c r = u32g_sub(v0, v1, clamp);