TEXT uartputc(SB), $0	MOVL 4(SP),AX	CALL rmode16(SB)	STI	CLR(rDX)	MOVB $0x01, AH	BIOSCALL(0x14)	CALL16(pmode32(SB))	XORL AX,AX	RET TEXT uartgotc(SB), $0	CALL rmode16(SB)	STI	CLR(rDX)	MOVB $0x03, AH	BIOSCALL(0x14)	CALL16(pmode32(SB))	ANDL $0x8100,AX	MOVL $0x0100,BX	CMPL BX,AX	JE uartread	XORL AX,AX	RETuartread:	CALL rmode16(SB)	STI	CLR(rDX)	MOVB $0x02, AH	BIOSCALL(0x14)	CALL16(pmode32(SB))	ANDL $0xFF,AX	RET