io-global.asm File Reference

Io module. More...

Functions
macro	c128lib_OpenIOChannel (filenumber, devicenumber, secondary)
	Opens an I/O channel.
macro	c128lib_SetIOName (length, address)
	Sets the name for I/O operations.
macro	c128lib_SetInputChannel (filenumber)
	Sets the input channel.
macro	c128lib_SetOutputChannel (filenumber)
	Sets the output channel.
macro	c128lib_OpenFile (length, address, filenumber, devicenumber, secondary)
	Opens a file for I/O operations.

Detailed Description

Io module.

Simple macros for Io.

Author

Raffaele Intorcia raffa.nosp@m.ele..nosp@m.intor.nosp@m.cia@.nosp@m.gmail.nosp@m..com

Copyright

MIT License Copyright (c) 2024 c128lib - https://github.com/c128lib

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Date

2024

Function Documentation

c128lib_OpenIOChannel()

macro c128lib_OpenIOChannel	(	filenumber	,
		devicenumber	,
		secondary	)

Opens an I/O channel.

This macro opens an I/O channel with the specified file number, device number, and secondary address. It loads the parameters into the appropriate registers and then calls the SETLFS routine in the C128 Kernal.

Parameters

[in]	filenumber	The file number for the I/O channel.
[in]	devicenumber	The device number for the I/O channel.
[in]	secondary	The secondary address for the I/O channel.

Remarks

Register .A, .X and .Y will be modified.

Flags N and Z will be affected.

Since

1.0.0

c128lib_SetIOName()

macro c128lib_SetIOName	(	length	,
		address	)

Sets the name for I/O operations.

This macro sets the name for I/O operations. It loads the length of the name and the address of the name into the appropriate registers, then calls the Kernal.JSETNAM routine.

Parameters

[in]	length	The length of the name.
[in]	address	The address where the name is stored.

Remarks

Register .A, .X and .Y will be modified.

Flags N and Z will be affected.

Since

1.0.0

c128lib_SetInputChannel()

macro c128lib_SetInputChannel

(

filenumber

)

Sets the input channel.

This macro sets the input channel for subsequent I/O operations. It loads the file number into the X register and then calls the CHKIN routine in the C128 Kernal.

Parameters

[in]

filenumber

The file number for the input channel.

Remarks

Register .X will be modified.

Flags N and Z will be affected.

Note

Use c128lib_SetInputChannel in io-global.asm

Since

1.0.0

c128lib_SetOutputChannel()

macro c128lib_SetOutputChannel

(

filenumber

)

Sets the output channel.

This macro sets the output channel for subsequent I/O operations. It loads the file number into the X register and then calls the Kernal.JCHKOUT routine.

Parameters

[in]

filenumber

The file number for the output channel.

Remarks

Register .X will be modified.

Flags N and Z will be affected.

Since

1.0.0

c128lib_OpenFile()

macro c128lib_OpenFile	(	length	,
		address	,
		filenumber	,
		devicenumber	,
		secondary	)

Opens a file for I/O operations.

This macro opens a file for I/O operations. It sets the name for I/O operations, opens an I/O channel with the specified file number, device number, and secondary address, calls the OPEN routine in the C128 Kernal, and sets the input channel for subsequent I/O operations.

Parameters

[in]	length	The length of the name.
[in]	address	The address where the name is stored.
[in]	filenumber	The file number for the I/O channel.
[in]	devicenumber	The device number for the I/O channel.
[in]	secondary	The secondary address for the I/O channel.

Since

1.0.0