SH4_CCR_OCE
r &= ~SH4_CCR_OCE;
sh_cache_enable_dcache = (r & SH4_CCR_OCE);
r = SH4_CCR_ICE|SH4_CCR_OCE|SH4_CCR_WT;
r = SH4_CCR_EMODE|SH4_CCR_ICE|SH4_CCR_OCE|SH4_CCR_WT;
_reg_read_4(SH4_CCR) & ~(SH4_CCR_ICE | SH4_CCR_OCE));
_reg_read_4(SH4_CCR) | SH4_CCR_ICE | SH4_CCR_OCE);