int15_copy()
QNX SDP8.0Building Embedded SystemsConfigurationDeveloper
Copy data from high memory (above 1 MB) to a buffer, or to low memory (below 1 MB)
Synopsis:
unsigned char int15_copy (long from, long to, long len)
Arguments:
- from
- The address in memory of the data to be copied.
- to
- The destination address in memory
- len
- The length (in bytes) of the data chunk to copy.
Description:
The int15_copy() function is intended for an x86 system with a BIOS, running in real mode. The function lets you copy data from high memory (above 1 MB) to a buffer, or to low memory (below 1 MB).
The int15_copy() function also allows functions such as image_scan() and image_setup() to perform scanning and setup of images located in high memory.
Returns:
- 0
- Success
- -1
- Failure
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