1/*
2 * Copyright (C) 2004, 2007  Maciej W. Rozycki
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License.  See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8#ifndef _ASM_COMPILER_H
9#define _ASM_COMPILER_H
10
11#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
12#define GCC_IMM_ASM() "n"
13#define GCC_REG_ACCUM "$0"
14#else
15#define GCC_IMM_ASM() "rn"
16#define GCC_REG_ACCUM "accum"
17#endif
18
19#ifdef CONFIG_CPU_MIPSR6
20/* All MIPS R6 toolchains support the ZC constrain */
21#define GCC_OFF_SMALL_ASM() "ZC"
22#else
23#ifndef CONFIG_CPU_MICROMIPS
24#define GCC_OFF_SMALL_ASM() "R"
25#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
26#define GCC_OFF_SMALL_ASM() "ZC"
27#else
28#error "microMIPS compilation unsupported with GCC older than 4.9"
29#endif /* CONFIG_CPU_MICROMIPS */
30#endif /* CONFIG_CPU_MIPSR6 */
31
32#ifdef CONFIG_CPU_MIPSR6
33#define MIPS_ISA_LEVEL "mips64r6"
34#define MIPS_ISA_ARCH_LEVEL MIPS_ISA_LEVEL
35#define MIPS_ISA_LEVEL_RAW mips64r6
36#define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
37#else
38/* MIPS64 is a superset of MIPS32 */
39#define MIPS_ISA_LEVEL "mips64r2"
40#define MIPS_ISA_ARCH_LEVEL "arch=r4000"
41#define MIPS_ISA_LEVEL_RAW mips64r2
42#define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
43#endif /* CONFIG_CPU_MIPSR6 */
44
45#endif /* _ASM_COMPILER_H */
46