master
 1/* Assembler macros for m680x0.
 2   Copyright (C) 2010-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public
 7   License as published by the Free Software Foundation; either
 8   version 2.1 of the License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library.  If not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#include <sysdeps/m68k/sysdep.h>
20
21#ifdef __ASSEMBLER__
22
23/* Perform operation OP with PC-relative SRC as the first operand and
24   DST as the second.  TMP is available as a temporary if needed.  */
25# define PCREL_OP(OP, SRC, DST, TMP) \
26  OP SRC(%pc), DST
27
28/* Load the address of the GOT into register R.  */
29# define LOAD_GOT(R) \
30  lea _GLOBAL_OFFSET_TABLE_@GOTPC (%pc), R
31
32#else
33
34/* As above, but PC is the spelling of the PC register.  We need this
35   so that the macro can be used in both normal and extended asms.  */
36#define PCREL_OP(OP, SRC, DST, TMP, PC) \
37  OP " " SRC "(" PC "), " DST
38
39#endif	/* __ASSEMBLER__ */
40
41# if defined __mc68020__ || defined __mc68030__ || defined __mc68040__	      \
42     || defined __mc68060__
43#  define M68K_SCALE_AVAILABLE 1
44# else
45#  define M68K_SCALE_AVAILABLE 0
46# endif