SH4_CCR_WT
r &= ~SH4_CCR_WT;
sh_cache_write_through_p0_u0_p3 = (r & SH4_CCR_WT);
r = SH4_CCR_ICE|SH4_CCR_OCE|SH4_CCR_WT;
r = SH4_CCR_EMODE|SH4_CCR_ICE|SH4_CCR_OCE|SH4_CCR_WT;