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#include "ultra64.h"
/**
* memcpy: copies `len` bytes from memory starting at `src` to memory starting at `dest`. Expects the memory
* specified by `src` and `dest` to not overlap.
*
* @see libultra also has a memcpy().
*
* @param dest address of start of buffer writing to
* @param src address of start of buffer to read from
* @param len number of bytes to copy. (`s32` rather than the standard `size_t`)
*
* @return dest
*/
void* MemCpy(void* dest, const void* src, s32 len) {
u8* d = dest;
const u8* s = src;
while (len > 0) {
*d++ = *s++;
len--;
}
return dest;
}
/**
* memset: sets `len` bytes to `val` starting at address `dest`.
*
* @see There are two other memsets in this codebase, Lib_MemSet(), memset().
* This one is unused.
*
* @param dest address to start at
* @param val value to write (`s32`, but interpreted as `u8`)
* @param len number of bytes to write. (`s32` rather than the standard `size_t`)
*
* @return dest
*/
void* MemSet(void* dest, s32 val, s32 len) {
u8* d = dest;
s32 s = len;
while (s > 0) {
*d++ = val;
s--;
}
return dest;
}
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