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1988-11-22
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MEMORY.DOC
These are general memory handling routines which will perform operations
as quickly as possible. They are super-optimized to use long word and
multiple-register moves whenever possible.
BZero BZero
(void) = BZero(buf, bytes)
APTR buf;
long bytes;
Zero out an area of memory. That was simple! This is simply a special
case of BSet()
BSet BSet
(void) = BSet(buf, bytes, value)
APTR buf;
long bytes;
long value; (only lower 8 bits used)
Jam a byte value into an area of memory.
BMov BMov
(void) = BMov(src, dest, bytes)
APTR src, dest;
long bytes;
Move a block of memory from the source to the destination. An
ascending or decending copy is used depending on how the source and
destination overlap, if at all. Both are optimized to use multiple-
register moves when possible, longword moves, or byte moves if the
two blocks are hopelessly out of alignment.
BCmp BCmp
BOOL = BCmp(src, dest, bytes)
APTR src, dest;
long bytes;
Compare two blocks of memory. (1) is returned on success, (0) on
failure. Currently, this routine is not optimized at all.