dosmemput

Syntax

#include <sys/movedata.h> void dosmemput(const void *buffer, int length, int offset);

Description

This function transfers data from the program's virtual address space to MS-DOS's conventional memory space. The offset is a physical address, which can be computed from a real-mode segment/offset pair as follows:

offset = segment * 16 + offset;

The length is the number of bytes to transfer, and buffer is a pointer to somewhere in your virtual address space (such as memory obtained from malloc) where the data will come from.

Return Value

None.

Portability

ANSI/ISO C	No
POSIX	No

Example

unsigned short save_screen[25][80]; dosmemput(save_screen, 80*2*25, 0xb8000);