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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __RISCV_ENCODING_H__
#define __RISCV_ENCODING_H__
#include <sbi/sbi_const.h>
/* clang-format off */
#define MSTATUS_SIE _UL(0x00000002)
#define MSTATUS_MIE _UL(0x00000008)
#define MSTATUS_SPIE_SHIFT 5
#define MSTATUS_SPIE (_UL(1) << MSTATUS_SPIE_SHIFT)
#define MSTATUS_UBE _UL(0x00000040)
#define MSTATUS_MPIE _UL(0x00000080)
#define MSTATUS_SPP_SHIFT 8
#define MSTATUS_SPP (_UL(1) << MSTATUS_SPP_SHIFT)
#define MSTATUS_MPP_SHIFT 11
#define MSTATUS_MPP (_UL(3) << MSTATUS_MPP_SHIFT)
#define MSTATUS_FS _UL(0x00006000)
#define MSTATUS_XS _UL(0x00018000)
#define MSTATUS_MPRV _UL(0x00020000)
#define MSTATUS_SUM _UL(0x00040000)
#define MSTATUS_MXR _UL(0x00080000)
#define MSTATUS_TVM _UL(0x00100000)
#define MSTATUS_TW _UL(0x00200000)
#define MSTATUS_TSR _UL(0x00400000)
#define MSTATUS32_SD _UL(0x80000000)
#if __riscv_xlen == 64
#define MSTATUS_UXL _ULL(0x0000000300000000)
#define MSTATUS_SXL _ULL(0x0000000C00000000)
#define MSTATUS_SBE _ULL(0x0000001000000000)
#define MSTATUS_MBE _ULL(0x0000002000000000)
#define MSTATUS_MPV _ULL(0x0000008000000000)
#else
#define MSTATUSH_SBE _UL(0x00000010)
#define MSTATUSH_MBE _UL(0x00000020)
#define MSTATUSH_MPV _UL(0x00000080)
#endif
#define MSTATUS32_SD _UL(0x80000000)
#define MSTATUS64_SD _ULL(0x8000000000000000)
#define SSTATUS_SIE MSTATUS_SIE
#define SSTATUS_SPIE_SHIFT MSTATUS_SPIE_SHIFT
#define SSTATUS_SPIE MSTATUS_SPIE
#define SSTATUS_SPP_SHIFT MSTATUS_SPP_SHIFT
#define SSTATUS_SPP MSTATUS_SPP
#define SSTATUS_FS MSTATUS_FS
#define SSTATUS_XS MSTATUS_XS
#define SSTATUS_SUM MSTATUS_SUM
#define SSTATUS_MXR MSTATUS_MXR
#define SSTATUS32_SD MSTATUS32_SD
#define SSTATUS64_UXL MSTATUS_UXL
#define SSTATUS64_SD MSTATUS64_SD
#define HSTATUS_VTSR _UL(0x00400000)
#define HSTATUS_VTVM _UL(0x00100000)
#define HSTATUS_SP2V _UL(0x00000200)
#define HSTATUS_SP2P _UL(0x00000100)
#define HSTATUS_SPV _UL(0x00000080)
#define HSTATUS_SPRV _UL(0x00000001)
#define IRQ_S_SOFT 1
#define IRQ_VS_SOFT 2
#define IRQ_M_SOFT 3
#define IRQ_S_TIMER 5
#define IRQ_VS_TIMER 6
#define IRQ_M_TIMER 7
#define IRQ_S_EXT 9
#define IRQ_VS_EXT 10
#define IRQ_M_EXT 11
#define IRQ_S_GEXT 12
#define MIP_SSIP (_UL(1) << IRQ_S_SOFT)
#define MIP_VSSIP (_UL(1) << IRQ_VS_SOFT)
#define MIP_MSIP (_UL(1) << IRQ_M_SOFT)
#define MIP_STIP (_UL(1) << IRQ_S_TIMER)
#define MIP_VSTIP (_UL(1) << IRQ_VS_TIMER)
#define MIP_MTIP (_UL(1) << IRQ_M_TIMER)
#define MIP_SEIP (_UL(1) << IRQ_S_EXT)
#define MIP_VSEIP (_UL(1) << IRQ_VS_EXT)
#define MIP_MEIP (_UL(1) << IRQ_M_EXT)
#define MIP_SGEIP (_UL(1) << IRQ_S_GEXT)
#define SIP_SSIP MIP_SSIP
#define SIP_STIP MIP_STIP
#define PRV_U _UL(0)
#define PRV_S _UL(1)
#define PRV_M _UL(3)
#define SATP32_MODE _UL(0x80000000)
#define SATP32_ASID _UL(0x7FC00000)
#define SATP32_PPN _UL(0x003FFFFF)
#define SATP64_MODE _ULL(0xF000000000000000)
#define SATP64_ASID _ULL(0x0FFFF00000000000)
#define SATP64_PPN _ULL(0x00000FFFFFFFFFFF)
#define SATP_MODE_OFF _UL(0)
#define SATP_MODE_SV32 _UL(1)
#define SATP_MODE_SV39 _UL(8)
#define SATP_MODE_SV48 _UL(9)
#define SATP_MODE_SV57 _UL(10)
#define SATP_MODE_SV64 _UL(11)
#define PMP_R _UL(0x01)
#define PMP_W _UL(0x02)
#define PMP_X _UL(0x04)
#define PMP_A _UL(0x18)
#define PMP_A_TOR _UL(0x08)
#define PMP_A_NA4 _UL(0x10)
#define PMP_A_NAPOT _UL(0x18)
#define PMP_L _UL(0x80)
#define PMP_SHIFT 2
#define PMP_COUNT 16
/* page table entry (PTE) fields */
#define PTE_V _UL(0x001) /* Valid */
#define PTE_R _UL(0x002) /* Read */
#define PTE_W _UL(0x004) /* Write */
#define PTE_X _UL(0x008) /* Execute */
#define PTE_U _UL(0x010) /* User */
#define PTE_G _UL(0x020) /* Global */
#define PTE_A _UL(0x040) /* Accessed */
#define PTE_D _UL(0x080) /* Dirty */
#define PTE_SOFT _UL(0x300) /* Reserved for Software */
#define PTE_PPN_SHIFT 10
#define PTE_TABLE(PTE) \
(((PTE) & (PTE_V | PTE_R | PTE_W | PTE_X)) == PTE_V)
#if __riscv_xlen == 64
#define MSTATUS_SD MSTATUS64_SD
#define SSTATUS_SD SSTATUS64_SD
#define RISCV_PGLEVEL_BITS 9
#define SATP_MODE SATP64_MODE
#else
#define MSTATUS_SD MSTATUS32_SD
#define SSTATUS_SD SSTATUS32_SD
#define RISCV_PGLEVEL_BITS 10
#define SATP_MODE SATP32_MODE
#endif
#define RISCV_PGSHIFT 12
#define RISCV_PGSIZE (1 << RISCV_PGSHIFT)
#define CSR_USTATUS 0x0
#define CSR_FFLAGS 0x1
#define CSR_FRM 0x2
#define CSR_FCSR 0x3
#define CSR_CYCLE 0xc00
#define CSR_UIE 0x4
#define CSR_UTVEC 0x5
#define CSR_USCRATCH 0x40
#define CSR_UEPC 0x41
#define CSR_UCAUSE 0x42
#define CSR_UTVAL 0x43
#define CSR_UIP 0x44
#define CSR_TIME 0xc01
#define CSR_INSTRET 0xc02
#define CSR_HPMCOUNTER3 0xc03
#define CSR_HPMCOUNTER4 0xc04
#define CSR_HPMCOUNTER5 0xc05
#define CSR_HPMCOUNTER6 0xc06
#define CSR_HPMCOUNTER7 0xc07
#define CSR_HPMCOUNTER8 0xc08
#define CSR_HPMCOUNTER9 0xc09
#define CSR_HPMCOUNTER10 0xc0a
#define CSR_HPMCOUNTER11 0xc0b
#define CSR_HPMCOUNTER12 0xc0c
#define CSR_HPMCOUNTER13 0xc0d
#define CSR_HPMCOUNTER14 0xc0e
#define CSR_HPMCOUNTER15 0xc0f
#define CSR_HPMCOUNTER16 0xc10
#define CSR_HPMCOUNTER17 0xc11
#define CSR_HPMCOUNTER18 0xc12
#define CSR_HPMCOUNTER19 0xc13
#define CSR_HPMCOUNTER20 0xc14
#define CSR_HPMCOUNTER21 0xc15
#define CSR_HPMCOUNTER22 0xc16
#define CSR_HPMCOUNTER23 0xc17
#define CSR_HPMCOUNTER24 0xc18
#define CSR_HPMCOUNTER25 0xc19
#define CSR_HPMCOUNTER26 0xc1a
#define CSR_HPMCOUNTER27 0xc1b
#define CSR_HPMCOUNTER28 0xc1c
#define CSR_HPMCOUNTER29 0xc1d
#define CSR_HPMCOUNTER30 0xc1e
#define CSR_HPMCOUNTER31 0xc1f
#define CSR_SSTATUS 0x100
#define CSR_SIE 0x104
#define CSR_STVEC 0x105
#define CSR_SCOUNTEREN 0x106
#define CSR_SSCRATCH 0x140
#define CSR_SEPC 0x141
#define CSR_SCAUSE 0x142
#define CSR_STVAL 0x143
#define CSR_SIP 0x144
#define CSR_SATP 0x180
#define CSR_HSTATUS 0x600
#define CSR_HEDELEG 0x602
#define CSR_HIDELEG 0x603
#define CSR_HIE 0x604
#define CSR_HTIMEDELTA 0x605
#define CSR_HTIMEDELTAH 0x615
#define CSR_HCOUNTERNEN 0x606
#define CSR_HGEIE 0x607
#define CSR_HTVAL 0x643
#define CSR_HIP 0x644
#define CSR_HTINST 0x64a
#define CSR_HGATP 0x680
#define CSR_HGEIP 0xe07
#define CSR_VSSTATUS 0x200
#define CSR_VSIE 0x204
#define CSR_VSTVEC 0x205
#define CSR_VSSCRATCH 0x240
#define CSR_VSEPC 0x241
#define CSR_VSCAUSE 0x242
#define CSR_VSTVAL 0x243
#define CSR_VSIP 0x244
#define CSR_VSATP 0x280
#define CSR_MSTATUS 0x300
#define CSR_MISA 0x301
#define CSR_MEDELEG 0x302
#define CSR_MIDELEG 0x303
#define CSR_MIE 0x304
#define CSR_MTVEC 0x305
#define CSR_MCOUNTEREN 0x306
#define CSR_MSTATUSH 0x310
#define CSR_MSCRATCH 0x340
#define CSR_MEPC 0x341
#define CSR_MCAUSE 0x342
#define CSR_MTVAL 0x343
#define CSR_MIP 0x344
#define CSR_MTINST 0x34a
#define CSR_MTVAL2 0x34b
#define CSR_PMPCFG0 0x3a0
#define CSR_PMPCFG1 0x3a1
#define CSR_PMPCFG2 0x3a2
#define CSR_PMPCFG3 0x3a3
#define CSR_PMPADDR0 0x3b0
#define CSR_PMPADDR1 0x3b1
#define CSR_PMPADDR2 0x3b2
#define CSR_PMPADDR3 0x3b3
#define CSR_PMPADDR4 0x3b4
#define CSR_PMPADDR5 0x3b5
#define CSR_PMPADDR6 0x3b6
#define CSR_PMPADDR7 0x3b7
#define CSR_PMPADDR8 0x3b8
#define CSR_PMPADDR9 0x3b9
#define CSR_PMPADDR10 0x3ba
#define CSR_PMPADDR11 0x3bb
#define CSR_PMPADDR12 0x3bc
#define CSR_PMPADDR13 0x3bd
#define CSR_PMPADDR14 0x3be
#define CSR_PMPADDR15 0x3bf
#define CSR_TSELECT 0x7a0
#define CSR_TDATA1 0x7a1
#define CSR_TDATA2 0x7a2
#define CSR_TDATA3 0x7a3
#define CSR_DCSR 0x7b0
#define CSR_DPC 0x7b1
#define CSR_DSCRATCH 0x7b2
#define CSR_MCYCLE 0xb00
#define CSR_MINSTRET 0xb02
#define CSR_MHPMCOUNTER3 0xb03
#define CSR_MHPMCOUNTER4 0xb04
#define CSR_MHPMCOUNTER5 0xb05
#define CSR_MHPMCOUNTER6 0xb06
#define CSR_MHPMCOUNTER7 0xb07
#define CSR_MHPMCOUNTER8 0xb08
#define CSR_MHPMCOUNTER9 0xb09
#define CSR_MHPMCOUNTER10 0xb0a
#define CSR_MHPMCOUNTER11 0xb0b
#define CSR_MHPMCOUNTER12 0xb0c
#define CSR_MHPMCOUNTER13 0xb0d
#define CSR_MHPMCOUNTER14 0xb0e
#define CSR_MHPMCOUNTER15 0xb0f
#define CSR_MHPMCOUNTER16 0xb10
#define CSR_MHPMCOUNTER17 0xb11
#define CSR_MHPMCOUNTER18 0xb12
#define CSR_MHPMCOUNTER19 0xb13
#define CSR_MHPMCOUNTER20 0xb14
#define CSR_MHPMCOUNTER21 0xb15
#define CSR_MHPMCOUNTER22 0xb16
#define CSR_MHPMCOUNTER23 0xb17
#define CSR_MHPMCOUNTER24 0xb18
#define CSR_MHPMCOUNTER25 0xb19
#define CSR_MHPMCOUNTER26 0xb1a
#define CSR_MHPMCOUNTER27 0xb1b
#define CSR_MHPMCOUNTER28 0xb1c
#define CSR_MHPMCOUNTER29 0xb1d
#define CSR_MHPMCOUNTER30 0xb1e
#define CSR_MHPMCOUNTER31 0xb1f
#define CSR_MHPMEVENT3 0x323
#define CSR_MHPMEVENT4 0x324
#define CSR_MHPMEVENT5 0x325
#define CSR_MHPMEVENT6 0x326
#define CSR_MHPMEVENT7 0x327
#define CSR_MHPMEVENT8 0x328
#define CSR_MHPMEVENT9 0x329
#define CSR_MHPMEVENT10 0x32a
#define CSR_MHPMEVENT11 0x32b
#define CSR_MHPMEVENT12 0x32c
#define CSR_MHPMEVENT13 0x32d
#define CSR_MHPMEVENT14 0x32e
#define CSR_MHPMEVENT15 0x32f
#define CSR_MHPMEVENT16 0x330
#define CSR_MHPMEVENT17 0x331
#define CSR_MHPMEVENT18 0x332
#define CSR_MHPMEVENT19 0x333
#define CSR_MHPMEVENT20 0x334
#define CSR_MHPMEVENT21 0x335
#define CSR_MHPMEVENT22 0x336
#define CSR_MHPMEVENT23 0x337
#define CSR_MHPMEVENT24 0x338
#define CSR_MHPMEVENT25 0x339
#define CSR_MHPMEVENT26 0x33a
#define CSR_MHPMEVENT27 0x33b
#define CSR_MHPMEVENT28 0x33c
#define CSR_MHPMEVENT29 0x33d
#define CSR_MHPMEVENT30 0x33e
#define CSR_MHPMEVENT31 0x33f
#define CSR_MVENDORID 0xf11
#define CSR_MARCHID 0xf12
#define CSR_MIMPID 0xf13
#define CSR_MHARTID 0xf14
#define CSR_CYCLEH 0xc80
#define CSR_TIMEH 0xc81
#define CSR_INSTRETH 0xc82
#define CSR_HPMCOUNTER3H 0xc83
#define CSR_HPMCOUNTER4H 0xc84
#define CSR_HPMCOUNTER5H 0xc85
#define CSR_HPMCOUNTER6H 0xc86
#define CSR_HPMCOUNTER7H 0xc87
#define CSR_HPMCOUNTER8H 0xc88
#define CSR_HPMCOUNTER9H 0xc89
#define CSR_HPMCOUNTER10H 0xc8a
#define CSR_HPMCOUNTER11H 0xc8b
#define CSR_HPMCOUNTER12H 0xc8c
#define CSR_HPMCOUNTER13H 0xc8d
#define CSR_HPMCOUNTER14H 0xc8e
#define CSR_HPMCOUNTER15H 0xc8f
#define CSR_HPMCOUNTER16H 0xc90
#define CSR_HPMCOUNTER17H 0xc91
#define CSR_HPMCOUNTER18H 0xc92
#define CSR_HPMCOUNTER19H 0xc93
#define CSR_HPMCOUNTER20H 0xc94
#define CSR_HPMCOUNTER21H 0xc95
#define CSR_HPMCOUNTER22H 0xc96
#define CSR_HPMCOUNTER23H 0xc97
#define CSR_HPMCOUNTER24H 0xc98
#define CSR_HPMCOUNTER25H 0xc99
#define CSR_HPMCOUNTER26H 0xc9a
#define CSR_HPMCOUNTER27H 0xc9b
#define CSR_HPMCOUNTER28H 0xc9c
#define CSR_HPMCOUNTER29H 0xc9d
#define CSR_HPMCOUNTER30H 0xc9e
#define CSR_HPMCOUNTER31H 0xc9f
#define CSR_MCYCLEH 0xb80
#define CSR_MINSTRETH 0xb82
#define CSR_MHPMCOUNTER3H 0xb83
#define CSR_MHPMCOUNTER4H 0xb84
#define CSR_MHPMCOUNTER5H 0xb85
#define CSR_MHPMCOUNTER6H 0xb86
#define CSR_MHPMCOUNTER7H 0xb87
#define CSR_MHPMCOUNTER8H 0xb88
#define CSR_MHPMCOUNTER9H 0xb89
#define CSR_MHPMCOUNTER10H 0xb8a
#define CSR_MHPMCOUNTER11H 0xb8b
#define CSR_MHPMCOUNTER12H 0xb8c
#define CSR_MHPMCOUNTER13H 0xb8d
#define CSR_MHPMCOUNTER14H 0xb8e
#define CSR_MHPMCOUNTER15H 0xb8f
#define CSR_MHPMCOUNTER16H 0xb90
#define CSR_MHPMCOUNTER17H 0xb91
#define CSR_MHPMCOUNTER18H 0xb92
#define CSR_MHPMCOUNTER19H 0xb93
#define CSR_MHPMCOUNTER20H 0xb94
#define CSR_MHPMCOUNTER21H 0xb95
#define CSR_MHPMCOUNTER22H 0xb96
#define CSR_MHPMCOUNTER23H 0xb97
#define CSR_MHPMCOUNTER24H 0xb98
#define CSR_MHPMCOUNTER25H 0xb99
#define CSR_MHPMCOUNTER26H 0xb9a
#define CSR_MHPMCOUNTER27H 0xb9b
#define CSR_MHPMCOUNTER28H 0xb9c
#define CSR_MHPMCOUNTER29H 0xb9d
#define CSR_MHPMCOUNTER30H 0xb9e
#define CSR_MHPMCOUNTER31H 0xb9f
#define CAUSE_MISALIGNED_FETCH 0x0
#define CAUSE_FETCH_ACCESS 0x1
#define CAUSE_ILLEGAL_INSTRUCTION 0x2
#define CAUSE_BREAKPOINT 0x3
#define CAUSE_MISALIGNED_LOAD 0x4
#define CAUSE_LOAD_ACCESS 0x5
#define CAUSE_MISALIGNED_STORE 0x6
#define CAUSE_STORE_ACCESS 0x7
#define CAUSE_USER_ECALL 0x8
#define CAUSE_HYPERVISOR_ECALL 0x9
#define CAUSE_SUPERVISOR_ECALL 0xa
#define CAUSE_MACHINE_ECALL 0xb
#define CAUSE_FETCH_PAGE_FAULT 0xc
#define CAUSE_LOAD_PAGE_FAULT 0xd
#define CAUSE_STORE_PAGE_FAULT 0xf
#define CAUSE_FETCH_GUEST_PAGE_FAULT 0x14
#define CAUSE_LOAD_GUEST_PAGE_FAULT 0x15
#define CAUSE_STORE_GUEST_PAGE_FAULT 0x17
#define INSN_MATCH_LB 0x3
#define INSN_MASK_LB 0x707f
#define INSN_MATCH_LH 0x1003
#define INSN_MASK_LH 0x707f
#define INSN_MATCH_LW 0x2003
#define INSN_MASK_LW 0x707f
#define INSN_MATCH_LD 0x3003
#define INSN_MASK_LD 0x707f
#define INSN_MATCH_LBU 0x4003
#define INSN_MASK_LBU 0x707f
#define INSN_MATCH_LHU 0x5003
#define INSN_MASK_LHU 0x707f
#define INSN_MATCH_LWU 0x6003
#define INSN_MASK_LWU 0x707f
#define INSN_MATCH_SB 0x23
#define INSN_MASK_SB 0x707f
#define INSN_MATCH_SH 0x1023
#define INSN_MASK_SH 0x707f
#define INSN_MATCH_SW 0x2023
#define INSN_MASK_SW 0x707f
#define INSN_MATCH_SD 0x3023
#define INSN_MASK_SD 0x707f
#define INSN_MATCH_FLW 0x2007
#define INSN_MASK_FLW 0x707f
#define INSN_MATCH_FLD 0x3007
#define INSN_MASK_FLD 0x707f
#define INSN_MATCH_FLQ 0x4007
#define INSN_MASK_FLQ 0x707f
#define INSN_MATCH_FSW 0x2027
#define INSN_MASK_FSW 0x707f
#define INSN_MATCH_FSD 0x3027
#define INSN_MASK_FSD 0x707f
#define INSN_MATCH_FSQ 0x4027
#define INSN_MASK_FSQ 0x707f
#define INSN_MATCH_C_LD 0x6000
#define INSN_MASK_C_LD 0xe003
#define INSN_MATCH_C_SD 0xe000
#define INSN_MASK_C_SD 0xe003
#define INSN_MATCH_C_LW 0x4000
#define INSN_MASK_C_LW 0xe003
#define INSN_MATCH_C_SW 0xc000
#define INSN_MASK_C_SW 0xe003
#define INSN_MATCH_C_LDSP 0x6002
#define INSN_MASK_C_LDSP 0xe003
#define INSN_MATCH_C_SDSP 0xe002
#define INSN_MASK_C_SDSP 0xe003
#define INSN_MATCH_C_LWSP 0x4002
#define INSN_MASK_C_LWSP 0xe003
#define INSN_MATCH_C_SWSP 0xc002
#define INSN_MASK_C_SWSP 0xe003
#define INSN_MATCH_C_FLD 0x2000
#define INSN_MASK_C_FLD 0xe003
#define INSN_MATCH_C_FLW 0x6000
#define INSN_MASK_C_FLW 0xe003
#define INSN_MATCH_C_FSD 0xa000
#define INSN_MASK_C_FSD 0xe003
#define INSN_MATCH_C_FSW 0xe000
#define INSN_MASK_C_FSW 0xe003
#define INSN_MATCH_C_FLDSP 0x2002
#define INSN_MASK_C_FLDSP 0xe003
#define INSN_MATCH_C_FSDSP 0xa002
#define INSN_MASK_C_FSDSP 0xe003
#define INSN_MATCH_C_FLWSP 0x6002
#define INSN_MASK_C_FLWSP 0xe003
#define INSN_MATCH_C_FSWSP 0xe002
#define INSN_MASK_C_FSWSP 0xe003
#define INSN_MASK_WFI 0xffffff00
#define INSN_MATCH_WFI 0x10500000
#define INSN_16BIT_MASK 0x3
#define INSN_32BIT_MASK 0x1c
#define INSN_IS_16BIT(insn) \
(((insn) & INSN_16BIT_MASK) != INSN_16BIT_MASK)
#define INSN_IS_32BIT(insn) \
(((insn) & INSN_16BIT_MASK) == INSN_16BIT_MASK && \
((insn) & INSN_32BIT_MASK) != INSN_32BIT_MASK)
#define INSN_LEN(insn) (INSN_IS_16BIT(insn) ? 2 : 4)
#if __riscv_xlen == 64
#define LOG_REGBYTES 3
#else
#define LOG_REGBYTES 2
#endif
#define REGBYTES (1 << LOG_REGBYTES)
#define SH_RD 7
#define SH_RS1 15
#define SH_RS2 20
#define SH_RS2C 2
#define RV_X(x, s, n) (((x) >> (s)) & ((1 << (n)) - 1))
#define RVC_LW_IMM(x) ((RV_X(x, 6, 1) << 2) | \
(RV_X(x, 10, 3) << 3) | \
(RV_X(x, 5, 1) << 6))
#define RVC_LD_IMM(x) ((RV_X(x, 10, 3) << 3) | \
(RV_X(x, 5, 2) << 6))
#define RVC_LWSP_IMM(x) ((RV_X(x, 4, 3) << 2) | \
(RV_X(x, 12, 1) << 5) | \
(RV_X(x, 2, 2) << 6))
#define RVC_LDSP_IMM(x) ((RV_X(x, 5, 2) << 3) | \
(RV_X(x, 12, 1) << 5) | \
(RV_X(x, 2, 3) << 6))
#define RVC_SWSP_IMM(x) ((RV_X(x, 9, 4) << 2) | \
(RV_X(x, 7, 2) << 6))
#define RVC_SDSP_IMM(x) ((RV_X(x, 10, 3) << 3) | \
(RV_X(x, 7, 3) << 6))
#define RVC_RS1S(insn) (8 + RV_X(insn, SH_RD, 3))
#define RVC_RS2S(insn) (8 + RV_X(insn, SH_RS2C, 3))
#define RVC_RS2(insn) RV_X(insn, SH_RS2C, 5)
#define SHIFT_RIGHT(x, y) \
((y) < 0 ? ((x) << -(y)) : ((x) >> (y)))
#define REG_MASK \
((1 << (5 + LOG_REGBYTES)) - (1 << LOG_REGBYTES))
#define REG_OFFSET(insn, pos) \
(SHIFT_RIGHT((insn), (pos) - LOG_REGBYTES) & REG_MASK)
#define REG_PTR(insn, pos, regs) \
(ulong *)((ulong)(regs) + REG_OFFSET(insn, pos))
#define GET_RM(insn) (((insn) >> 12) & 7)
#define GET_RS1(insn, regs) (*REG_PTR(insn, SH_RS1, regs))
#define GET_RS2(insn, regs) (*REG_PTR(insn, SH_RS2, regs))
#define GET_RS1S(insn, regs) (*REG_PTR(RVC_RS1S(insn), 0, regs))
#define GET_RS2S(insn, regs) (*REG_PTR(RVC_RS2S(insn), 0, regs))
#define GET_RS2C(insn, regs) (*REG_PTR(insn, SH_RS2C, regs))
#define GET_SP(regs) (*REG_PTR(2, 0, regs))
#define SET_RD(insn, regs, val) (*REG_PTR(insn, SH_RD, regs) = (val))
#define IMM_I(insn) ((s32)(insn) >> 20)
#define IMM_S(insn) (((s32)(insn) >> 25 << 5) | \
(s32)(((insn) >> 7) & 0x1f))
#define MASK_FUNCT3 0x7000
/* clang-format on */
#endif
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