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cc65/libsrc/rp6502/sysrename.c
2024-02-17 15:47:51 -08:00

22 lines
561 B
C

#include <rp6502.h>
#include <errno.h>
#include <string.h>
unsigned char __fastcall__ _sysrename (const char* oldpath, const char* newpath)
{
size_t oldpathlen, newpathlen;
oldpathlen = strlen (oldpath);
newpathlen = strlen (newpath);
if (oldpathlen + newpathlen > 510) {
return _mappederrno (EINVAL);
}
while (oldpathlen) {
ria_push_char (oldpath[--oldpathlen]);
}
ria_push_char (0);
while (newpathlen) {
ria_push_char (newpath[--newpathlen]);
}
return ria_call_int_errno (RIA_OP_RENAME);
}