amigaIntToRaw {adfExplorer} | R Documentation |
Convert Amiga integers into raw values
Description
Convert 8, 16, or 32-bit signed or unsigned integer values into raw data, conform Amiga specifications.
Usage
amigaIntToRaw(x, bits = 8, signed = F)
Arguments
x |
A vector of class |
bits |
Number of bits that represents the integer value. Should be 8 or a positive multitude of 8. |
signed |
A |
Details
The Commodore Amiga has specified the following data formats to represent integer data: BYTE (signed 8-bit integer), UBYTE (unsigned 8-bit integer), WORD (signed 16-bit integer), UWORD (unsigned 16-bit integer), LONG (signed 32-bit integer), ULONG, (unsigned 32-bit integer). This function converts such integers into raw data.
Value
Returns (a vector
of) raw
data, representing
the integer value(s) conform Amiga specifications.
Author(s)
Pepijn de Vries
See Also
Other raw.operations:
amigaDateToRaw()
,
displayRawData()
,
rawToAmigaDate()
,
rawToAmigaInt()
,
rawToBitmap()
Examples
## some unsigned 8-bit integers:
ubyte <- sample.int(255, 100, TRUE)
## The same values as raw data:
amigaIntToRaw(ubyte)
## some signed 8-bit integers:
byte <- sample.int(255, 100, TRUE) - 128
## The same values as raw data:
amigaIntToRaw(byte, signed = TRUE)
## some signed 16-bit integers:
word <- sample.int(2^16, 100, TRUE) - 2^15
## The same values as raw data:
amigaIntToRaw(word, 16, TRUE)
## note that 16-bit integers require
## twice as many raw values:
length(amigaIntToRaw(word, 16, TRUE))
length(amigaIntToRaw(byte, 8, TRUE))