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/* Copyright (C) 2022-2023 Free Software Foundation, Inc.
Contributed by Xiongchuan Tan <xc-tan@outlook.com>.
This file is part of the GNU Transactional Memory Library (libitm).
Libitm is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _RV_ASM_H
#define _RV_ASM_H
#ifdef __riscv_e
# error "rv32e and rv64e unsupported"
#endif
#if __riscv_xlen == 64
# define GPR_L ld
# define GPR_S sd
# define SZ_GPR 8
# define LEN_GPR 14
#elif __riscv_xlen == 32
# define GPR_L lw
# define GPR_S sw
# define SZ_GPR 4
# define LEN_GPR 16 /* Extra padding to align the stack to 16 bytes */
#else
# error Unsupported XLEN (must be 64-bit or 32-bit).
#endif
#if defined(__riscv_flen) && __riscv_flen == 64
# define FPR_L fld
# define FPR_S fsd
# define SZ_FPR 8
#elif defined(__riscv_flen) && __riscv_flen == 32
# define FPR_L flw
# define FPR_S fsw
# define SZ_FPR 4
#elif defined(__riscv_flen)
# error Q-extension unsupported
#else
# define SZ_FPR 0
#endif
/* The size of gtm_jmpbuf */
#define ADJ_STACK_SIZE (LEN_GPR*SZ_GPR+12*SZ_FPR)
#endif /* _RV_ASM_H */
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