IsaRulbusInterface Class Reference
[Rulbus Interface]

#include <IsaRulbusInterface.h>

Inherits TheRulbusInterface.

List of all members.

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Detailed Description

Class IsaRulbusInterface implements getReg() and putReg() for the ISA Rulbus Interface. At construction time it checks for a valid PC port-I/O base address. The base address may range from 0x200 to 0xFF00 in steps of 0x0100.

Public Member Functions
Construction
	IsaRulbusInterface (long aBase=DEF_ISA_BASE)
	(default) constructor; checks for valid ISA Rulbus Interface base address.
Accessors
long	base () const
	return the converters Rulbus base address.
bool	invariant () const
	check class invariant.
Printer
bool	printOn (std::ostream &stream) const
	report configuration.
Static Public Attributes
const long	DEF_ISA_BASE = 0x0200
	default ISA Rulbus Interface base address.
Protected Member Functions
Construction
	IsaRulbusInterface (IsaRulbusInterfaceRef)
	prevent copying.
IsaRulbusInterfaceRef	operator= (IsaRulbusInterfaceRef)
	prevent copying.
Predicates
bool	validBase (long base) const
	check for valid base address.
Provider interface
int	getReg (int offset) const
	read a byte from the Rulbus.
int	putReg (int offset, int byte) const
	write a byte to the Rulbus.
Private Attributes
long	theBase
	interface port-i/o base address
Static Private Attributes
const long	baseMin = 0x0200
	lowest acceptable base address
const long	baseMax = 0xFF00
	highest acceptable base address
const long	baseStp = 0x0100
	base address delta
CharCptr	msgtitle = "Initialize ISA Rulbus Interface"
	title for error message boxes concerning initialization errors.

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Constructor & Destructor Documentation

IsaRulbusInterface (  long  aBase = DEF_ISA_BASE  )

The (default) constructor does the following: check for valid ISA base address if CanIO is used for port-I/O, the constructor opens the I/O port range used by the ISA Rulbus Interface (see openIO()). The constructor throws a RulbusInterfaceError if the base address is invalid, or if the address range could not be opened.

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Member Function Documentation

int getReg (  int  offset  )  const [protected, virtual]

Reading a byte from the ISA Rulbus Interface is simple: int getReg(int offset) { return inp( base + offset ); } Implements TheRulbusInterface.

int putReg (  int  offset, int  byte )  const [protected, virtual]

Writing a byte to the ISA Rulbus Interface is simple: int putReg(int offset, int byte) { outp( base + offset, byte ); return byte; } Implements TheRulbusInterface.

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The documentation for this class was generated from the following files:

• IsaRulbusInterface.h
• IsaRulbusInterface.cpp

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