56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/*
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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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* 2018-10-03 Bernard The first version
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*/
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#ifndef CPUPORT_H__
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#define CPUPORT_H__
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#include <rtconfig.h>
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/* bytes of register width */
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#ifdef ARCH_CPU_64BIT
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#define STORE sd
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#define LOAD ld
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#define REGBYTES 8
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#else
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// error here, not portable
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#endif
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#ifdef RISCV_U_MODE
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#define RISCV_USER_ENTRY 0xFFFFFFE000000000ULL
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#endif
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#ifdef RISCV_S_MODE
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//csr in s-mode
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// M/U/S Interrupt Registers
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#define SRC_XIE sie
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#define SRC_XIP sip
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#define SRC_XTVEC stvec
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#define SRC_XSTATUS sstatus
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#define SRC_XSCRATCH sscratch
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#define SRC_XEPC sepc
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#define SRC_XCAUSE scause
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#define SRC_XTVAL stval
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#define XRET sret
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#else
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//csr in m-mode
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// M/U/S Interrupt Registers
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#define SRC_XIE mie
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#define SRC_XIP mip
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#define SRC_XTVEC mtvec
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#define SRC_XSTATUS mstatus
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#define SRC_XSCRATCH mscratch
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#define SRC_XEPC mepc
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#define SRC_XCAUSE mcause
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#define SRC_XTVAL mtval
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#define XRET mret
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#endif
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#endif
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