(svn r3089) Fix possible issue with out-of-bounds array access in replace vehicle gui, and add brief commenting.
.CODE
PUBLIC _get_save_esp
_get_save_esp:
MOV RAX,RSP
RET
PUBLIC _rdtsc
_rdtsc:
RDTSC
MOV RCX,RDX
SHL RCX,32
AND RAX,0FFFFFFFFh
OR RAX,RCX
RET
END