cc65/libsrc/rp6502/stdin_opt.c

#include <rp6502.h>

int __fastcall__ stdin_opt (unsigned long ctrl_bits, unsigned char str_length)
{
    ria_push_long (ctrl_bits);
    ria_set_a (str_length);
    return ria_call_int_errno (RIA_OP_STDIN_OPT);
}