REG_FN_MODIFY_BASE
[REG_FN_MODIFY_BASE + 0] = modify_8,
[REG_FN_MODIFY_BASE + 1] = modify_16,
[REG_FN_MODIFY_BASE + 3] = modify_32,
fn = REG_FN_MODIFY_BASE;
case REG_FN_MODIFY_BASE + 1: /* 16bit */
case REG_FN_MODIFY_BASE + 3: /* 32bit */
case REG_FN_MODIFY_BASE + 0: /* 8bit */
fn = REG_FN_MODIFY_BASE;
fn = REG_FN_MODIFY_BASE;
fn = REG_FN_MODIFY_BASE;
fn = REG_FN_MODIFY_BASE;