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

16 lines
356 B
C

#include <rp6502.h>
#include <errno.h>
int __fastcall__ write_xstack (const void* buf, unsigned count, int fildes)
{
unsigned i;
if (count > 512) {
return _mappederrno (EINVAL);
}
for (i = count; i;) {
ria_push_char (((char*)buf)[--i]);
}
ria_set_ax (fildes);
return ria_call_int_errno (RIA_OP_WRITE_XSTACK);
}