REGVAL
pll_reg_5 = REGVAL(2);
pll_reg_3 = REGVAL(1);
pll_reg_57 = REGVAL(3);
#define IP22ZILOG_SET_CURR_REG(PORT, REGNUM, REGVAL) \
((UART_ZILOG(PORT)->curregs[REGNUM]) = (REGVAL))