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