ioports_fallback_t Struct Reference

Detailed Description

Read i/o port definitions from a config file.

Each device definition in the input file begins with a line like this:

.devicename 

After it go the port definitions in this format:

portname          address 

The bit definitions (optional) are represented like this:

portname.bitname  bitnumber 

Lines beginning with a space are ignored. comment lines should be started with ';' character.

The default device is specified at the start of the file:

.default device_name 

Note

It is permissible to have a symbol mapped to several addresses but all addresses must be unique.

Parameters

[out]	ports	output vector
	device	contains device name to load. If default_device[0] == 0 then the default device is determined by .default directive in the config file.
	file	config file name
	callback	callback to call when the input line can't be parsed normally.

Returns

-1 on error or size of vector

Public Member Functions
virtual bool	handle (qstring *errbuf, const ioports_t &ports, const char *line)=0

Member Function Documentation

handle()

virtual bool ioports_fallback_t::handle ( qstring *  errbuf, const ioports_t &  ports, const char *  line  )

pure virtual

Parameters

[out]	errbuf	error message
	ports	i/o port definitions
	line	input line to parse

Returns

success or fills ERRBUF with an error message

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The documentation for this struct was generated from the following file:

• diskio.hpp