RMIXL_PICREG_WRITE
RMIXL_PICREG_WRITE(RMIXL_PIC_CONTROL, r);
RMIXL_PICREG_WRITE(RMIXL_PIC_IRTENTRYC1(irt), 0); /* high word */
RMIXL_PICREG_WRITE(RMIXL_PIC_IRTENTRYC0(irt), 0); /* low word */
RMIXL_PICREG_WRITE(RMIXL_PIC_IRTENTRYC0(irt), irtc0); /* low word */
RMIXL_PICREG_WRITE(RMIXL_PIC_IRTENTRYC1(irt), irtc1); /* high word */
RMIXL_PICREG_WRITE(RMIXL_PIC_INTRACK,
RMIXL_PICREG_WRITE(RMIXL_PIC_IPIBASE, r);