AmigaBasicBMAP-io: Read and write Amiga Basic BMAP files

In AmigaFFH: Commodore Amiga File Format Handler

Read and write Amiga Basic BMAP files

Description

Read and write AmigaBasicBMAP() binary file format.

Usage

read.AmigaBasicBMAP(file)

write.AmigaBasicBMAP(x, file)

Arguments

file	A character string of the filename of the Amiga Basic BMAP file to be read or written.
x	A AmigaBasicBMAP() class object that needs to be stored.

Details

An Amiga Basic BMAP file maps the offset of routines in Amiga libraries and can be read as a comprehensive list and written back to a binary file using these functions.

Value

Returns an AmigaBasicBMAP() class object read from the file in case of read.AmigaBasicBMAP. Otherwise, invisibly returns the result of the call of close to the file connection.

Author(s)

Pepijn de Vries

See Also

Other AmigaBasic.operations: AmigaBasic.reserved(), AmigaBasicBMAP, AmigaBasic, [.AmigaBasic(), as.AmigaBasicBMAP(), as.AmigaBasic(), as.character(), check.names.AmigaBasic(), names.AmigaBasic(), rawToAmigaBasicBMAP(), rawToAmigaBasic(), read.AmigaBasic(), write.AmigaBasic()

Other io.operations: read.AmigaBasicShape(), read.AmigaBasic(), read.AmigaBitmapFontSet(), read.AmigaBitmapFont(), read.AmigaIcon(), read.SysConfig(), read.iff(), write.AmigaBasicShape(), write.AmigaBasic(), write.AmigaBitmapFont(), write.AmigaIcon(), write.SysConfig(), write.iff()

Examples

## A small fragment of the dos.library BMAP would look like this:
dos.bmap <- as.AmigaBasicBMAP(list(
  xOpen = list(
    libraryVectorOffset = -30,
    registers = as.raw(2:3)
  ),
  xClose = list(
    libraryVectorOffset = -36,
    registers = as.raw(2)
  ),
  xRead = list(
    libraryVectorOffset = -42,
    registers = as.raw(2:4)
  )
))

## This will write the BMAP to a file:
write.AmigaBasicBMAP(dos.bmap, file.path(tempdir(), "dos.bmap"))

## This will read the same file:
dos.bmap.copy <- read.AmigaBasicBMAP(file.path(tempdir(), "dos.bmap"))

AmigaFFH documentation built on April 3, 2025, 11:35 p.m.