578 	if (INB(ISR) & 0x20) { /* 82510 chip is present */  in asyattach()
600 		if ((INB(ISR) & 0xc0) == 0xc0)  in asyattach()
1010 	mcr = INB(MCR);  in asyopen()
1019 	    (INB(MSR) & DCD))  in asyopen()
1151 		lcr = INB(LCR);  in asyclose()
1217 		OUTB(MCR, INB(MCR) & ~ ASY_LOOP);  in asyclose()
1250 		icr = INB(ICR);  in asyclose()
1322 	    ((INB(LSR) & XSRE) == 0));  in asy_isbusy()
1418 		(void) INB(DAT);  in asy_program()
1419 		(void) INB(ISR);  in asy_program()
1420 		(void) INB(LSR);  in asy_program()
1421 		(void) INB(MSR);  in asy_program()
1426 		lcr = INB(LCR);  in asy_program()
1529 	while ((INB(LSR) & XHRE) == 0) {  in asyputchar()
1546 	return ((INB(LSR) & RCA) != 0);  in asyischar()
1561 	return (INB(DAT));  in asygetchar()
1584 		asy->polled_icr = INB(ICR);  in asy_polled_enter()
1639 	interrupt_id = INB(ISR) & 0x0F;  in asyintr()
1646 			lsr = INB(LSR);  in asyintr()
1653 				(void) INB(LSR);  in asyintr()
1655 				(void) INB(DAT);  in asyintr()
1657 				(void) INB(MSR);  in asyintr()
1705 	lsr = INB(LSR);  in asyintr()
1774 			lsr = INB(LSR);  in async_txint()
1811 			(void) (INB(DAT) & 0xff);  in async_rxint()
1821 			c = INB(DAT) & 0xff;  in async_rxint()
1889 		lsr = INB(LSR);  in async_rxint()
1981 	msr = INB(MSR);	/* this resets the interrupt */  in async_msint()
2099 	if (INB(ICR) & MIEN)  in async_softint()
2102 		val = INB(MSR) & 0xFF;  in async_softint()
2154 				val = INB(MCR);  in async_softint()
2439 		lcr = INB(LCR);  in async_restart()
2575 			val = INB(LCR);  in async_nstart()
2719 		if (INB(LSR) & XHRE) {  in async_nstart()
2748 	if (INB(LSR) & XHRE) {  in async_resume()
3057 				while ((INB(LSR) & XSRE) == 0) {  in async_ioctl()
3071 				val = INB(LCR);  in async_ioctl()
3099 			val = INB(LCR);  in async_ioctl()
3108 			val = INB(LCR);  in async_ioctl()
3159 			val = INB(MCR);  in async_ioctl()
3160 			icr = INB(ICR);  in async_ioctl()
3600 	mcr_r = INB(MCR);  in asymctl()
3618 		if (INB(ICR) & MIEN)  in asymctl()
3621 			msr_r = INB(MSR);  in asymctl()
3695 		mcr = INB(MCR);  in asycheckflowcontrol_hw()
3715 	if ((ss = async->async_flowc) != '\0' && (INB(LSR) & XHRE)) {  in asycheckflowcontrol_sw()