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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-11-09 WangXiaoyao Add portable asm support
*/
#ifndef __OPCODE_H__
#define __OPCODE_H__
/**
* @brief binary opcode pseudo operations
* Used to bypass toolchain restriction on extension ISA
*
* WARNING: Xuantie ISAs are not compatible to each other in opcode.
* It's painful to port this file, and should be really careful.
*/
/**
* @brief RISC-V instruction formats
*/
/**
* R type: .insn r opcode6, func3, func7, rd, rs1, rs2
*
* +-------+-----+-----+-------+----+---------+
* | func7 | rs2 | rs1 | func3 | rd | opcode6 |
* +-------+-----+-----+-------+----+---------+
* 31 25 20 15 12 7 0
*/
#define __OPC_INSN_FORMAT_R(opcode, func3, func7, rd, rs1, rs2) \
".insn r "RT_STRINGIFY(opcode)","RT_STRINGIFY(func3)","RT_STRINGIFY(func7)","RT_STRINGIFY(rd)","RT_STRINGIFY(rs1)","RT_STRINGIFY(rs2)
/**
* @brief Xuantie T-HEAD extension ISA format
* Compatible to Xuantie C906R2S1 user manual v06
*/
#define __OPC_INSN_FORMAT_CACHE(func7, rs2, rs1) \
__OPC_INSN_FORMAT_R(0x0b, 0x0, func7, x0, rs1, rs2)
#ifdef _TOOLCHAIN_SUPP_XTHEADE_ISA_
#define OPC_SYNC "sync"
#define OPC_SYNC_I "sync.i"
#define OPC_DCACHE_CALL "dcache.call"
#define OPC_DCACHE_IALL "dcache.iall"
#define OPC_DCACHE_CIALL "dcache.ciall"
#define OPC_ICACHE_IALL "icache.iall"
#define OPC_DCACHE_CVA(rs1) "dcache.cva "RT_STRINGIFY(rs1)
#define OPC_DCACHE_IVA(rs1) "dcache.iva "RT_STRINGIFY(rs1)
#define OPC_DCACHE_CIVA(rs1) "dcache.civa "RT_STRINGIFY(rs1)
#define OPC_ICACHE_IVA(rs1) "icache.iva "RT_STRINGIFY(rs1)
#else /* !_TOOLCHAIN_NOT_SUPP_THEAD_ISA_ */
#define OPC_SYNC ".long 0x0180000B"
#define OPC_SYNC_I ".long 0x01A0000B"
#define OPC_DCACHE_CALL ".long 0x0010000B"
#define OPC_DCACHE_IALL ".long 0x0020000B"
#define OPC_DCACHE_CIALL ".long 0x0030000B"
#define OPC_ICACHE_IALL ".long 0x0100000B"
#define OPC_DCACHE_CVA(rs1) __OPC_INSN_FORMAT_CACHE(0x1, x4, rs1)
#define OPC_DCACHE_IVA(rs1) __OPC_INSN_FORMAT_CACHE(0x1, x6, rs1)
#define OPC_DCACHE_CIVA(rs1) __OPC_INSN_FORMAT_CACHE(0x1, x7, rs1)
#define OPC_ICACHE_IVA(rs1) __OPC_INSN_FORMAT_CACHE(0x1, x16, rs1)
#endif /* _TOOLCHAIN_NOT_SUPP_THEAD_ISA_ */
#ifdef _TOOLCHAIN_SUPP_ZIFENCEI_ISA_
#define OPC_FENCE_I "fence.i"
#else /* !_TOOLCHAIN_SUPP_ZIFENCEI_ISA_ */
#define OPC_FENCE_I ".long 0x0000100F"
#endif /* _TOOLCHAIN_SUPP_ZIFENCEI_ISA_ */
#endif /* __OPCODE_H__ */
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