riscv-spike: support for Spike emulation of riscv

Spike support: QEMU RISCV is broken, and the maintainers at Berkeley
are working on it, but at the moment spike is the only way to  test
on riscv. Add support for spike console output for debugging.

Privileged ISA: Update to privileged ISA in RISCV (machine,
supervisor, hypervisor, user modes) broke exisitng RISCV asm, and
bootblock.S was updated to match the new spec. Clean old assembly

[pg: things build with gcc 4.9 now, but don't expect them to work.
Hardcoding register names into the assembler language may not be the smartest
idea of the RISCV folks.]

Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181
Signed-off-by: Thaminda Edirisooriya <thaminda@google.com>
Reviewed-on: http://review.coreboot.org/11078
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

16 files changed, 1302 insertions, 618 deletions

diff --git a/src/arch/riscv/bootblock.S b/src/arch/riscv/bootblock.S
index 4f2d1ecd55..a26b144458 100644
--- a/src/arch/riscv/bootblock.S
+++ b/src/arch/riscv/bootblock.S
@@ -22,30 +22,33 @@
 
 .section ".text._start", "ax", %progbits
 // Maybe there's a better way.
-.space 0x2000
+.space 0x200
 .globl _start
 _start:
 
 	// pending figuring out this f-ing toolchain. Hardcode what we know works.
-  la sp, 0x4ef0 // .stacktop
-//  la a0, trap_entry
+//  la sp, 0x4ef0 // .stacktop
+//  la sp, 0x40000 // from src/mainboard/emulation/qemu-riscv
+  la sp, 0x7FF00 // stack start + stack size
+
+  // make room for HLS
+  addi sp, sp, -64 // MENTRY_FRAME_SIZE
+
+
+  //poison the stack
+  la t1, 0x40000
+  li t0, 0xdeadbeef
+  sd t0, 0(t1)
+
 //  la gp, _gp
-//  csrw evec, a0
 
   # clear any pending interrupts
+#if __GNUC__ < 5
   csrwi clear_ipi, 0
+#else
+  csrwi sip, 0
+#endif
 
-  li a0, SR_S | SR_PS | SR_EI | SR_S64 | SR_U64
-  or a1, a0, SR_EF | SR_EA
-  csrw status, a1
-  csrr a1, status
-  csrw status, a0
-
-//  and a2, a1, SR_EF
-//  sw a2, have_fp, t0
-
-//  and   a2, a1, SR_EA
-//  sw a2, have_accelerator, t0
   call main
 .=0x4000
 .stack:
diff --git a/src/arch/riscv/include/arch/atomic.h b/src/arch/riscv/include/arch/atomic.h
deleted file mode 100644
index b3e5d24154..0000000000
--- a/src/arch/riscv/include/arch/atomic.h
+++ /dev/null
@@ -1,75 +0,0 @@
-// See LICENSE for license details.
-
-#ifndef _RISCV_ATOMIC_H
-#define _RISCV_ATOMIC_H
-
-#include <arch/encoding.h>
-
-typedef struct { volatile long val; } atomic_t;
-typedef struct { atomic_t lock; } spinlock_t;
-#define SPINLOCK_INIT {{0}}
-
-#define mb() __sync_synchronize()
-
-static inline void atomic_set(atomic_t* a, long val)
-{
-  a->val = val;
-}
-
-static inline long atomic_read(atomic_t* a)
-{
-  return a->val;
-}
-
-static inline long atomic_add(atomic_t* a, long inc)
-{
-  long ret = atomic_read(a);
-  atomic_set(a, ret + inc);
-  return ret;
-}
-
-static inline long atomic_swap(atomic_t* a, long val)
-{
-  long ret = atomic_read(a);
-  atomic_set(a, val);
-  return ret;
-}
-
-static inline long atomic_cas(atomic_t* a, long compare, long swap)
-{
-  long ret = atomic_read(a);
-  if (ret == compare)
-    atomic_set(a, swap);
-  return ret;
-}
-
-static inline void spinlock_lock(spinlock_t* lock)
-{
-  do
-  {
-    while (atomic_read(&lock->lock))
-      ;
-  } while (atomic_swap(&lock->lock, -1));
-  mb();
-}
-
-static inline void spinlock_unlock(spinlock_t* lock)
-{
-  mb();
-  atomic_set(&lock->lock,0);
-}
-
-static inline long spinlock_lock_irqsave(spinlock_t* lock)
-{
-  long flags = clear_csr(status, SR_EI);
-  spinlock_lock(lock);
-  return flags;
-}
-
-static inline void spinlock_unlock_irqrestore(spinlock_t* lock, long flags)
-{
-  spinlock_unlock(lock);
-  set_csr(status, flags & SR_EI);
-}
-
-#endif
diff --git a/src/arch/riscv/include/arch/encoding.h b/src/arch/riscv/include/arch/encoding.h
index 089a8a99ea..ae42e82847 100644
--- a/src/arch/riscv/include/arch/encoding.h
+++ b/src/arch/riscv/include/arch/encoding.h
@@ -3,56 +3,132 @@
 #ifndef RISCV_CSR_ENCODING_H
 #define RISCV_CSR_ENCODING_H
 
-#define SR_S     0x00000001
-#define SR_PS    0x00000002
-#define SR_EI    0x00000004
-#define SR_PEI   0x00000008
-#define SR_EF    0x00000010
-#define SR_U64   0x00000020
-#define SR_S64   0x00000040
-#define SR_VM    0x00000080
-#define SR_EA    0x00000100
-#define SR_IM    0x00FF0000
-#define SR_IP    0xFF000000
-#define SR_ZERO  ~(SR_S|SR_PS|SR_EI|SR_PEI|SR_EF|SR_U64|SR_S64|SR_VM|SR_EA|SR_IM|SR_IP)
-#define SR_IM_SHIFT 16
-#define SR_IP_SHIFT 24
+#define MSTATUS_IE          0x00000001
+#define MSTATUS_PRV         0x00000006
+#define MSTATUS_IE1         0x00000008
+#define MSTATUS_PRV1        0x00000030
+#define MSTATUS_IE2         0x00000040
+#define MSTATUS_PRV2        0x00000180
+#define MSTATUS_IE3         0x00000200
+#define MSTATUS_PRV3        0x00000C00
+#define MSTATUS_FS          0x00003000
+#define MSTATUS_XS          0x0000C000
+#define MSTATUS_MPRV        0x00010000
+#define MSTATUS_VM          0x003E0000
+#define MSTATUS32_SD        0x80000000
+#define MSTATUS64_SD        0x8000000000000000
 
-#define IRQ_COP   2
-#define IRQ_IPI   5
-#define IRQ_HOST  6
-#define IRQ_TIMER 7
+#define SSTATUS_IE          0x00000001
+#define SSTATUS_PIE         0x00000008
+#define SSTATUS_PS          0x00000010
+#define SSTATUS_FS          0x00003000
+#define SSTATUS_XS          0x0000C000
+#define SSTATUS_MPRV        0x00010000
+#define SSTATUS_TIE         0x01000000
+#define SSTATUS32_SD        0x80000000
+#define SSTATUS64_SD        0x8000000000000000
 
-#define IMPL_SPIKE  1
-#define IMPL_ROCKET 2
+#define MIP_SSIP            0x00000002
+#define MIP_HSIP            0x00000004
+#define MIP_MSIP            0x00000008
+#define MIP_STIP            0x00000020
+#define MIP_HTIP            0x00000040
+#define MIP_MTIP            0x00000080
+
+#define SIP_SSIP MIP_SSIP
+#define SIP_STIP MIP_STIP
+
+#define PRV_U 0
+#define PRV_S 1
+#define PRV_H 2
+#define PRV_M 3
+
+#define VM_MBARE 0
+#define VM_MBB   1
+#define VM_MBBID 2
+#define VM_SV32  8
+#define VM_SV39  9
+#define VM_SV48  10
+
+#define UA_RV32  0
+#define UA_RV64  4
+#define UA_RV128 8
+
+#define IRQ_SOFT   0
+#define IRQ_TIMER  1
+#define IRQ_HOST   2
+#define IRQ_COP    3
+
+#define IMPL_ROCKET 1
+
+#define DEFAULT_MTVEC 0x100
 
 // page table entry (PTE) fields
-#define PTE_V    0x001 // Entry is a page Table descriptor
-#define PTE_T    0x002 // Entry is a page Table, not a terminal node
-#define PTE_G    0x004 // Global
-#define PTE_UR   0x008 // User Write permission
-#define PTE_UW   0x010 // User Read permission
-#define PTE_UX   0x020 // User eXecute permission
-#define PTE_SR   0x040 // Supervisor Read permission
-#define PTE_SW   0x080 // Supervisor Write permission
-#define PTE_SX   0x100 // Supervisor eXecute permission
-#define PTE_PERM (PTE_SR | PTE_SW | PTE_SX | PTE_UR | PTE_UW | PTE_UX)
+#define PTE_V     0x001 // Valid
+#define PTE_TYPE  0x01E // Type
+#define PTE_R     0x020 // Referenced
+#define PTE_D     0x040 // Dirty
+#define PTE_SOFT  0x380 // Reserved for Software
+
+#define PTE_TYPE_TABLE        0x00
+#define PTE_TYPE_TABLE_GLOBAL 0x02
+#define PTE_TYPE_URX_SR       0x04
+#define PTE_TYPE_URWX_SRW     0x06
+#define PTE_TYPE_UR_SR        0x08
+#define PTE_TYPE_URW_SRW      0x0A
+#define PTE_TYPE_URX_SRX      0x0C
+#define PTE_TYPE_URWX_SRWX    0x0E
+#define PTE_TYPE_SR           0x10
+#define PTE_TYPE_SRW          0x12
+#define PTE_TYPE_SRX          0x14
+#define PTE_TYPE_SRWX         0x16
+#define PTE_TYPE_SR_GLOBAL    0x18
+#define PTE_TYPE_SRW_GLOBAL   0x1A
+#define PTE_TYPE_SRX_GLOBAL   0x1C
+#define PTE_TYPE_SRWX_GLOBAL  0x1E
+
+#define PTE_PPN_SHIFT 10
+
+#define PTE_TABLE(PTE) ((0x0000000AU >> ((PTE) & 0x1F)) & 1)
+#define PTE_UR(PTE)    ((0x0000AAA0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_UW(PTE)    ((0x00008880U >> ((PTE) & 0x1F)) & 1)
+#define PTE_UX(PTE)    ((0x0000A0A0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SR(PTE)    ((0xAAAAAAA0U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SW(PTE)    ((0x88888880U >> ((PTE) & 0x1F)) & 1)
+#define PTE_SX(PTE)    ((0xA0A0A000U >> ((PTE) & 0x1F)) & 1)
+
+#define PTE_CHECK_PERM(PTE, SUPERVISOR, STORE, FETCH) \
+  ((STORE) ? ((SUPERVISOR) ? PTE_SW(PTE) : PTE_UW(PTE)) : \
+   (FETCH) ? ((SUPERVISOR) ? PTE_SX(PTE) : PTE_UX(PTE)) : \
+             ((SUPERVISOR) ? PTE_SR(PTE) : PTE_UR(PTE)))
 
 #ifdef __riscv
 
 #ifdef __riscv64
-# define RISCV_PGLEVELS 3
-# define RISCV_PGSHIFT 13
+# define MSTATUS_SD MSTATUS64_SD
+# define SSTATUS_SD SSTATUS64_SD
+# define RISCV_PGLEVEL_BITS 9
 #else
-# define RISCV_PGLEVELS 2
-# define RISCV_PGSHIFT 12
+# define MSTATUS_SD MSTATUS32_SD
+# define SSTATUS_SD SSTATUS32_SD
+# define RISCV_PGLEVEL_BITS 10
 #endif
-#define RISCV_PGLEVEL_BITS 10
+#define RISCV_PGSHIFT 12
 #define RISCV_PGSIZE (1 << RISCV_PGSHIFT)
 
 #ifndef __ASSEMBLER__
 
-#define read_csr(reg) ({ long __tmp; \
+#ifdef __GNUC__
+
+#if __GNUC__ < 5
+// stubbed out until we're safely on gcc-5.1+ with the new ABI
+#define read_csr(reg) ({ 0; })
+#define write_csr(reg, val)
+#define swap_csr(reg, val) ({ val; })
+#define set_csr(reg, bit) ({ bit; })
+#define clear_csr(reg, bit) ({ bit; })
+#else
+#define read_csr(reg) ({ unsigned long __tmp; \
   asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \
   __tmp; })
 
@@ -63,31 +139,26 @@
   asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \
   __tmp; })
 
-#define set_csr(reg, bit) ({ long __tmp; \
+#define set_csr(reg, bit) ({ unsigned long __tmp; \
   if (__builtin_constant_p(bit) && (bit) < 32) \
     asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
   else \
     asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
   __tmp; })
 
-#define clear_csr(reg, bit) ({ long __tmp; \
+#define clear_csr(reg, bit) ({ unsigned long __tmp; \
   if (__builtin_constant_p(bit) && (bit) < 32) \
     asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
   else \
     asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
   __tmp; })
+#endif
 
-#define rdtime() ({ unsigned long __tmp; \
-  asm volatile ("rdtime %0" : "=r"(__tmp)); \
-  __tmp; })
-
-#define rdcycle() ({ unsigned long __tmp; \
-  asm volatile ("rdcycle %0" : "=r"(__tmp)); \
-  __tmp; })
+#define rdtime() read_csr(time)
+#define rdcycle() read_csr(cycle)
+#define rdinstret() read_csr(instret)
 
-#define rdinstret() ({ unsigned long __tmp; \
-  asm volatile ("rdinstret %0" : "=r"(__tmp)); \
-  __tmp; })
+#endif
 
 #endif
 
@@ -97,346 +168,395 @@
 /* Automatically generated by parse-opcodes */
 #ifndef RISCV_ENCODING_H
 #define RISCV_ENCODING_H
-#define MATCH_FMV_S_X 0xf0000053
-#define MASK_FMV_S_X  0xfff0707f
-#define MATCH_AMOXOR_W 0x2000202f
-#define MASK_AMOXOR_W  0xf800707f
-#define MATCH_REMUW 0x200703b
-#define MASK_REMUW  0xfe00707f
-#define MATCH_FMIN_D 0x2a000053
-#define MASK_FMIN_D  0xfe00707f
+#define MATCH_ADD 0x33
+#define MASK_ADD  0xfe00707f
+#define MATCH_ADDI 0x13
+#define MASK_ADDI  0x707f
+#define MATCH_ADDIW 0x1b
+#define MASK_ADDIW  0x707f
+#define MATCH_ADDW 0x3b
+#define MASK_ADDW  0xfe00707f
+#define MATCH_AMOADD_D 0x302f
+#define MASK_AMOADD_D  0xf800707f
+#define MATCH_AMOADD_W 0x202f
+#define MASK_AMOADD_W  0xf800707f
+#define MATCH_AMOAND_D 0x6000302f
+#define MASK_AMOAND_D  0xf800707f
+#define MATCH_AMOAND_W 0x6000202f
+#define MASK_AMOAND_W  0xf800707f
 #define MATCH_AMOMAX_D 0xa000302f
 #define MASK_AMOMAX_D  0xf800707f
+#define MATCH_AMOMAX_W 0xa000202f
+#define MASK_AMOMAX_W  0xf800707f
+#define MATCH_AMOMAXU_D 0xe000302f
+#define MASK_AMOMAXU_D  0xf800707f
+#define MATCH_AMOMAXU_W 0xe000202f
+#define MASK_AMOMAXU_W  0xf800707f
+#define MATCH_AMOMIN_D 0x8000302f
+#define MASK_AMOMIN_D  0xf800707f
+#define MATCH_AMOMIN_W 0x8000202f
+#define MASK_AMOMIN_W  0xf800707f
+#define MATCH_AMOMINU_D 0xc000302f
+#define MASK_AMOMINU_D  0xf800707f
+#define MATCH_AMOMINU_W 0xc000202f
+#define MASK_AMOMINU_W  0xf800707f
+#define MATCH_AMOOR_D 0x4000302f
+#define MASK_AMOOR_D  0xf800707f
+#define MATCH_AMOOR_W 0x4000202f
+#define MASK_AMOOR_W  0xf800707f
+#define MATCH_AMOSWAP_D 0x800302f
+#define MASK_AMOSWAP_D  0xf800707f
+#define MATCH_AMOSWAP_W 0x800202f
+#define MASK_AMOSWAP_W  0xf800707f
+#define MATCH_AMOXOR_D 0x2000302f
+#define MASK_AMOXOR_D  0xf800707f
+#define MATCH_AMOXOR_W 0x2000202f
+#define MASK_AMOXOR_W  0xf800707f
+#define MATCH_AND 0x7033
+#define MASK_AND  0xfe00707f
+#define MATCH_ANDI 0x7013
+#define MASK_ANDI  0x707f
+#define MATCH_AUIPC 0x17
+#define MASK_AUIPC  0x7f
+#define MATCH_BEQ 0x63
+#define MASK_BEQ  0x707f
+#define MATCH_BGE 0x5063
+#define MASK_BGE  0x707f
+#define MATCH_BGEU 0x7063
+#define MASK_BGEU  0x707f
+#define MATCH_BLT 0x4063
+#define MASK_BLT  0x707f
 #define MATCH_BLTU 0x6063
 #define MASK_BLTU  0x707f
-#define MATCH_FSGNJN_D 0x22001053
-#define MASK_FSGNJN_D  0xfe00707f
-#define MATCH_FMIN_S 0x28000053
-#define MASK_FMIN_S  0xfe00707f
-#define MATCH_CSRRW 0x1073
-#define MASK_CSRRW  0x707f
-#define MATCH_SLLIW 0x101b
-#define MASK_SLLIW  0xfe00707f
-#define MATCH_LB 0x3
-#define MASK_LB  0x707f
-#define MATCH_FMAX_S 0x28001053
-#define MASK_FMAX_S  0xfe00707f
-#define MATCH_LH 0x1003
-#define MASK_LH  0x707f
-#define MATCH_FCVT_D_W 0xd2000053
-#define MASK_FCVT_D_W  0xfff0007f
-#define MATCH_LW 0x2003
-#define MASK_LW  0x707f
-#define MATCH_ADD 0x33
-#define MASK_ADD  0xfe00707f
-#define MATCH_CSRRC 0x3073
-#define MASK_CSRRC  0x707f
-#define MATCH_FMAX_D 0x2a001053
-#define MASK_FMAX_D  0xfe00707f
 #define MATCH_BNE 0x1063
 #define MASK_BNE  0x707f
-#define MATCH_FCVT_S_D 0x40100053
-#define MASK_FCVT_S_D  0xfff0007f
-#define MATCH_BGEU 0x7063
-#define MASK_BGEU  0x707f
+#define MATCH_C_ADD 0x1000
+#define MASK_C_ADD  0xf003
+#define MATCH_C_ADD3 0xa000
+#define MASK_C_ADD3  0xe063
+#define MATCH_C_ADDI 0xc002
+#define MASK_C_ADDI  0xe003
+#define MATCH_C_ADDI4SPN 0xa001
+#define MASK_C_ADDI4SPN  0xe003
+#define MATCH_C_ADDIW 0xe002
+#define MASK_C_ADDIW  0xe003
+#define MATCH_C_ADDW 0x9000
+#define MASK_C_ADDW  0xf003
+#define MATCH_C_AND3 0xa060
+#define MASK_C_AND3  0xe063
+#define MATCH_C_BEQZ 0x4002
+#define MASK_C_BEQZ  0xe003
+#define MATCH_C_BNEZ 0x6002
+#define MASK_C_BNEZ  0xe003
+#define MATCH_C_J 0x2
+#define MASK_C_J  0xe003
+#define MATCH_C_JAL 0x2002
+#define MASK_C_JAL  0xe003
+#define MATCH_C_LD 0xe000
+#define MASK_C_LD  0xe003
+#define MATCH_C_LDSP 0xe001
+#define MASK_C_LDSP  0xe003
+#define MATCH_C_LI 0x8002
+#define MASK_C_LI  0xe003
+#define MATCH_C_LUI 0xa002
+#define MASK_C_LUI  0xe003
+#define MATCH_C_LW 0xc000
+#define MASK_C_LW  0xe003
+#define MATCH_C_LWSP 0xc001
+#define MASK_C_LWSP  0xe003
+#define MATCH_C_MV 0x0
+#define MASK_C_MV  0xf003
+#define MATCH_C_OR3 0xa040
+#define MASK_C_OR3  0xe063
+#define MATCH_C_SD 0x6000
+#define MASK_C_SD  0xe003
+#define MATCH_C_SDSP 0x6001
+#define MASK_C_SDSP  0xe003
+#define MATCH_C_SLLI 0x1
+#define MASK_C_SLLI  0xe003
+#define MATCH_C_SLLIW 0x8001
+#define MASK_C_SLLIW  0xe003
+#define MATCH_C_SRAI 0x2000
+#define MASK_C_SRAI  0xe003
+#define MATCH_C_SRLI 0x2001
+#define MASK_C_SRLI  0xe003
+#define MATCH_C_SUB 0x8000
+#define MASK_C_SUB  0xf003
+#define MATCH_C_SUB3 0xa020
+#define MASK_C_SUB3  0xe063
+#define MATCH_C_SW 0x4000
+#define MASK_C_SW  0xe003
+#define MATCH_C_SWSP 0x4001
+#define MASK_C_SWSP  0xe003
+#define MATCH_CSRRC 0x3073
+#define MASK_CSRRC  0x707f
+#define MATCH_CSRRCI 0x7073
+#define MASK_CSRRCI  0x707f
+#define MATCH_CSRRS 0x2073
+#define MASK_CSRRS  0x707f
+#define MATCH_CSRRSI 0x6073
+#define MASK_CSRRSI  0x707f
+#define MATCH_CSRRW 0x1073
+#define MASK_CSRRW  0x707f
+#define MATCH_CSRRWI 0x5073
+#define MASK_CSRRWI  0x707f
+#define MATCH_DIV 0x2004033
+#define MASK_DIV  0xfe00707f
+#define MATCH_DIVU 0x2005033
+#define MASK_DIVU  0xfe00707f
+#define MATCH_DIVUW 0x200503b
+#define MASK_DIVUW  0xfe00707f
+#define MATCH_DIVW 0x200403b
+#define MASK_DIVW  0xfe00707f
 #define MATCH_FADD_D 0x2000053
 #define MASK_FADD_D  0xfe00007f
-#define MATCH_SLTIU 0x3013
-#define MASK_SLTIU  0x707f
 #define MATCH_FADD_S 0x53
 #define MASK_FADD_S  0xfe00007f
 #define MATCH_FCLASS_D 0xe2001053
 #define MASK_FCLASS_D  0xfff0707f
-#define MATCH_FCVT_S_W 0xd0000053
-#define MASK_FCVT_S_W  0xfff0007f
-#define MATCH_MUL 0x2000033
-#define MASK_MUL  0xfe00707f
-#define MATCH_AMOMINU_D 0xc000302f
-#define MASK_AMOMINU_D  0xf800707f
+#define MATCH_FCLASS_S 0xe0001053
+#define MASK_FCLASS_S  0xfff0707f
+#define MATCH_FCVT_D_L 0xd2200053
+#define MASK_FCVT_D_L  0xfff0007f
+#define MATCH_FCVT_D_LU 0xd2300053
+#define MASK_FCVT_D_LU  0xfff0007f
+#define MATCH_FCVT_D_S 0x42000053
+#define MASK_FCVT_D_S  0xfff0007f
+#define MATCH_FCVT_D_W 0xd2000053
+#define MASK_FCVT_D_W  0xfff0007f
+#define MATCH_FCVT_D_WU 0xd2100053
+#define MASK_FCVT_D_WU  0xfff0007f
+#define MATCH_FCVT_L_D 0xc2200053
+#define MASK_FCVT_L_D  0xfff0007f
+#define MATCH_FCVT_L_S 0xc0200053
+#define MASK_FCVT_L_S  0xfff0007f
+#define MATCH_FCVT_LU_D 0xc2300053
+#define MASK_FCVT_LU_D  0xfff0007f
+#define MATCH_FCVT_LU_S 0xc0300053
+#define MASK_FCVT_LU_S  0xfff0007f
+#define MATCH_FCVT_S_D 0x40100053
+#define MASK_FCVT_S_D  0xfff0007f
+#define MATCH_FCVT_S_L 0xd0200053
+#define MASK_FCVT_S_L  0xfff0007f
 #define MATCH_FCVT_S_LU 0xd0300053
 #define MASK_FCVT_S_LU  0xfff0007f
-#define MATCH_SRLI 0x5013
-#define MASK_SRLI  0xfc00707f
-#define MATCH_AMOMINU_W 0xc000202f
-#define MASK_AMOMINU_W  0xf800707f
-#define MATCH_DIVUW 0x200503b
-#define MASK_DIVUW  0xfe00707f
-#define MATCH_MULW 0x200003b
-#define MASK_MULW  0xfe00707f
-#define MATCH_SRLW 0x503b
-#define MASK_SRLW  0xfe00707f
-#define MATCH_DIV 0x2004033
-#define MASK_DIV  0xfe00707f
+#define MATCH_FCVT_S_W 0xd0000053
+#define MASK_FCVT_S_W  0xfff0007f
+#define MATCH_FCVT_S_WU 0xd0100053
+#define MASK_FCVT_S_WU  0xfff0007f
+#define MATCH_FCVT_W_D 0xc2000053
+#define MASK_FCVT_W_D  0xfff0007f
+#define MATCH_FCVT_W_S 0xc0000053
+#define MASK_FCVT_W_S  0xfff0007f
+#define MATCH_FCVT_WU_D 0xc2100053
+#define MASK_FCVT_WU_D  0xfff0007f
+#define MATCH_FCVT_WU_S 0xc0100053
+#define MASK_FCVT_WU_S  0xfff0007f
 #define MATCH_FDIV_D 0x1a000053
 #define MASK_FDIV_D  0xfe00007f
-#define MATCH_FENCE 0xf
-#define MASK_FENCE  0x707f
-#define MATCH_FNMSUB_S 0x4b
-#define MASK_FNMSUB_S  0x600007f
-#define MATCH_FCVT_L_S 0xc0200053
-#define MASK_FCVT_L_S  0xfff0007f
-#define MATCH_SBREAK 0x100073
-#define MASK_SBREAK  0xffffffff
-#define MATCH_FLE_S 0xa0000053
-#define MASK_FLE_S  0xfe00707f
 #define MATCH_FDIV_S 0x18000053
 #define MASK_FDIV_S  0xfe00007f
-#define MATCH_FLE_D 0xa2000053
-#define MASK_FLE_D  0xfe00707f
+#define MATCH_FENCE 0xf
+#define MASK_FENCE  0x707f
 #define MATCH_FENCE_I 0x100f
 #define MASK_FENCE_I  0x707f
-#define MATCH_FNMSUB_D 0x200004b
-#define MASK_FNMSUB_D  0x600007f
-#define MATCH_ADDW 0x3b
-#define MASK_ADDW  0xfe00707f
-#define MATCH_SLL 0x1033
-#define MASK_SLL  0xfe00707f
-#define MATCH_XOR 0x4033
-#define MASK_XOR  0xfe00707f
-#define MATCH_SUB 0x40000033
-#define MASK_SUB  0xfe00707f
-#define MATCH_BLT 0x4063
-#define MASK_BLT  0x707f
-#define MATCH_SCALL 0x73
-#define MASK_SCALL  0xffffffff
-#define MATCH_FCLASS_S 0xe0001053
-#define MASK_FCLASS_S  0xfff0707f
-#define MATCH_SC_W 0x1800202f
-#define MASK_SC_W  0xf800707f
-#define MATCH_REM 0x2006033
-#define MASK_REM  0xfe00707f
-#define MATCH_SRLIW 0x501b
-#define MASK_SRLIW  0xfe00707f
-#define MATCH_LUI 0x37
-#define MASK_LUI  0x7f
-#define MATCH_CSRRCI 0x7073
-#define MASK_CSRRCI  0x707f
-#define MATCH_ADDI 0x13
-#define MASK_ADDI  0x707f
-#define MATCH_MULH 0x2001033
-#define MASK_MULH  0xfe00707f
-#define MATCH_FMUL_S 0x10000053
-#define MASK_FMUL_S  0xfe00007f
-#define MATCH_CSRRSI 0x6073
-#define MASK_CSRRSI  0x707f
-#define MATCH_SRAI 0x40005013
-#define MASK_SRAI  0xfc00707f
-#define MATCH_AMOAND_D 0x6000302f
-#define MASK_AMOAND_D  0xf800707f
+#define MATCH_FEQ_D 0xa2002053
+#define MASK_FEQ_D  0xfe00707f
+#define MATCH_FEQ_S 0xa0002053
+#define MASK_FEQ_S  0xfe00707f
+#define MATCH_FLD 0x3007
+#define MASK_FLD  0x707f
+#define MATCH_FLE_D 0xa2000053
+#define MASK_FLE_D  0xfe00707f
+#define MATCH_FLE_S 0xa0000053
+#define MASK_FLE_S  0xfe00707f
 #define MATCH_FLT_D 0xa2001053
 #define MASK_FLT_D  0xfe00707f
-#define MATCH_SRAW 0x4000503b
-#define MASK_SRAW  0xfe00707f
-#define MATCH_FMUL_D 0x12000053
-#define MASK_FMUL_D  0xfe00007f
-#define MATCH_LD 0x3003
-#define MASK_LD  0x707f
-#define MATCH_ORI 0x6013
-#define MASK_ORI  0x707f
-#define MATCH_CSRRS 0x2073
-#define MASK_CSRRS  0x707f
 #define MATCH_FLT_S 0xa0001053
 #define MASK_FLT_S  0xfe00707f
-#define MATCH_ADDIW 0x1b
-#define MASK_ADDIW  0x707f
-#define MATCH_AMOAND_W 0x6000202f
-#define MASK_AMOAND_W  0xf800707f
-#define MATCH_FEQ_S 0xa0002053
-#define MASK_FEQ_S  0xfe00707f
-#define MATCH_FSGNJX_D 0x22002053
-#define MASK_FSGNJX_D  0xfe00707f
-#define MATCH_SRA 0x40005033
-#define MASK_SRA  0xfe00707f
-#define MATCH_BGE 0x5063
-#define MASK_BGE  0x707f
-#define MATCH_SRAIW 0x4000501b
-#define MASK_SRAIW  0xfe00707f
-#define MATCH_SRL 0x5033
-#define MASK_SRL  0xfe00707f
-#define MATCH_FSUB_D 0xa000053
-#define MASK_FSUB_D  0xfe00007f
-#define MATCH_FSGNJX_S 0x20002053
-#define MASK_FSGNJX_S  0xfe00707f
-#define MATCH_FEQ_D 0xa2002053
-#define MASK_FEQ_D  0xfe00707f
-#define MATCH_FCVT_D_WU 0xd2100053
-#define MASK_FCVT_D_WU  0xfff0007f
-#define MATCH_OR 0x6033
-#define MASK_OR  0xfe00707f
-#define MATCH_FCVT_WU_D 0xc2100053
-#define MASK_FCVT_WU_D  0xfff0007f
-#define MATCH_SUBW 0x4000003b
-#define MASK_SUBW  0xfe00707f
-#define MATCH_FCVT_D_L 0xd2200053
-#define MASK_FCVT_D_L  0xfff0007f
-#define MATCH_AMOMAXU_D 0xe000302f
-#define MASK_AMOMAXU_D  0xf800707f
-#define MATCH_XORI 0x4013
-#define MASK_XORI  0x707f
-#define MATCH_AMOXOR_D 0x2000302f
-#define MASK_AMOXOR_D  0xf800707f
-#define MATCH_AMOMAXU_W 0xe000202f
-#define MASK_AMOMAXU_W  0xf800707f
-#define MATCH_FCVT_WU_S 0xc0100053
-#define MASK_FCVT_WU_S  0xfff0007f
-#define MATCH_ANDI 0x7013
-#define MASK_ANDI  0x707f
-#define MATCH_FMV_X_S 0xe0000053
-#define MASK_FMV_X_S  0xfff0707f
-#define MATCH_SRET 0x80000073
-#define MASK_SRET  0xffffffff
-#define MATCH_FNMADD_S 0x4f
-#define MASK_FNMADD_S  0x600007f
-#define MATCH_JAL 0x6f
-#define MASK_JAL  0x7f
-#define MATCH_LWU 0x6003
-#define MASK_LWU  0x707f
-#define MATCH_FMV_X_D 0xe2000053
-#define MASK_FMV_X_D  0xfff0707f
-#define MATCH_FCVT_D_S 0x42000053
-#define MASK_FCVT_D_S  0xfff0007f
-#define MATCH_FNMADD_D 0x200004f
-#define MASK_FNMADD_D  0x600007f
-#define MATCH_AMOADD_D 0x302f
-#define MASK_AMOADD_D  0xf800707f
-#define MATCH_LR_D 0x1000302f
-#define MASK_LR_D  0xf9f0707f
-#define MATCH_FCVT_W_S 0xc0000053
-#define MASK_FCVT_W_S  0xfff0007f
-#define MATCH_MULHSU 0x2002033
-#define MASK_MULHSU  0xfe00707f
-#define MATCH_AMOADD_W 0x202f
-#define MASK_AMOADD_W  0xf800707f
-#define MATCH_FCVT_D_LU 0xd2300053
-#define MASK_FCVT_D_LU  0xfff0007f
-#define MATCH_LR_W 0x1000202f
-#define MASK_LR_W  0xf9f0707f
-#define MATCH_FCVT_W_D 0xc2000053
-#define MASK_FCVT_W_D  0xfff0007f
-#define MATCH_SLT 0x2033
-#define MASK_SLT  0xfe00707f
-#define MATCH_SLLW 0x103b
-#define MASK_SLLW  0xfe00707f
-#define MATCH_AMOOR_D 0x4000302f
-#define MASK_AMOOR_D  0xf800707f
-#define MATCH_SLTI 0x2013
-#define MASK_SLTI  0x707f
-#define MATCH_REMU 0x2007033
-#define MASK_REMU  0xfe00707f
 #define MATCH_FLW 0x2007
 #define MASK_FLW  0x707f
-#define MATCH_REMW 0x200603b
-#define MASK_REMW  0xfe00707f
-#define MATCH_SLTU 0x3033
-#define MASK_SLTU  0xfe00707f
-#define MATCH_SLLI 0x1013
-#define MASK_SLLI  0xfc00707f
-#define MATCH_AMOOR_W 0x4000202f
-#define MASK_AMOOR_W  0xf800707f
-#define MATCH_BEQ 0x63
-#define MASK_BEQ  0x707f
-#define MATCH_FLD 0x3007
-#define MASK_FLD  0x707f
-#define MATCH_FSUB_S 0x8000053
-#define MASK_FSUB_S  0xfe00007f
-#define MATCH_AND 0x7033
-#define MASK_AND  0xfe00707f
+#define MATCH_FMADD_D 0x2000043
+#define MASK_FMADD_D  0x600007f
+#define MATCH_FMADD_S 0x43
+#define MASK_FMADD_S  0x600007f
+#define MATCH_FMAX_D 0x2a001053
+#define MASK_FMAX_D  0xfe00707f
+#define MATCH_FMAX_S 0x28001053
+#define MASK_FMAX_S  0xfe00707f
+#define MATCH_FMIN_D 0x2a000053
+#define MASK_FMIN_D  0xfe00707f
+#define MATCH_FMIN_S 0x28000053
+#define MASK_FMIN_S  0xfe00707f
+#define MATCH_FMSUB_D 0x2000047
+#define MASK_FMSUB_D  0x600007f
+#define MATCH_FMSUB_S 0x47
+#define MASK_FMSUB_S  0x600007f
+#define MATCH_FMUL_D 0x12000053
+#define MASK_FMUL_D  0xfe00007f
+#define MATCH_FMUL_S 0x10000053
+#define MASK_FMUL_S  0xfe00007f
 #define MATCH_FMV_D_X 0xf2000053
 #define MASK_FMV_D_X  0xfff0707f
-#define MATCH_LBU 0x4003
-#define MASK_LBU  0x707f
-#define MATCH_FSGNJ_S 0x20000053
-#define MASK_FSGNJ_S  0xfe00707f
-#define MATCH_AMOMAX_W 0xa000202f
-#define MASK_AMOMAX_W  0xf800707f
+#define MATCH_FMV_S_X 0xf0000053
+#define MASK_FMV_S_X  0xfff0707f
+#define MATCH_FMV_X_D 0xe2000053
+#define MASK_FMV_X_D  0xfff0707f
+#define MATCH_FMV_X_S 0xe0000053
+#define MASK_FMV_X_S  0xfff0707f
+#define MATCH_FNMADD_D 0x200004f
+#define MASK_FNMADD_D  0x600007f
+#define MATCH_FNMADD_S 0x4f
+#define MASK_FNMADD_S  0x600007f
+#define MATCH_FNMSUB_D 0x200004b
+#define MASK_FNMSUB_D  0x600007f
+#define MATCH_FNMSUB_S 0x4b
+#define MASK_FNMSUB_S  0x600007f
+#define MATCH_FSD 0x3027
+#define MASK_FSD  0x707f
 #define MATCH_FSGNJ_D 0x22000053
 #define MASK_FSGNJ_D  0xfe00707f
-#define MATCH_MULHU 0x2003033
-#define MASK_MULHU  0xfe00707f
-#define MATCH_FCVT_L_D 0xc2200053
-#define MASK_FCVT_L_D  0xfff0007f
-#define MATCH_FCVT_S_WU 0xd0100053
-#define MASK_FCVT_S_WU  0xfff0007f
-#define MATCH_FCVT_LU_S 0xc0300053
-#define MASK_FCVT_LU_S  0xfff0007f
-#define MATCH_FCVT_S_L 0xd0200053
-#define MASK_FCVT_S_L  0xfff0007f
-#define MATCH_AUIPC 0x17
-#define MASK_AUIPC  0x7f
-#define MATCH_FCVT_LU_D 0xc2300053
-#define MASK_FCVT_LU_D  0xfff0007f
-#define MATCH_CSRRWI 0x5073
-#define MASK_CSRRWI  0x707f
-#define MATCH_SC_D 0x1800302f
-#define MASK_SC_D  0xf800707f
-#define MATCH_FMADD_S 0x43
-#define MASK_FMADD_S  0x600007f
-#define MATCH_FSQRT_S 0x58000053
-#define MASK_FSQRT_S  0xfff0007f
-#define MATCH_AMOMIN_W 0x8000202f
-#define MASK_AMOMIN_W  0xf800707f
+#define MATCH_FSGNJ_S 0x20000053
+#define MASK_FSGNJ_S  0xfe00707f
+#define MATCH_FSGNJN_D 0x22001053
+#define MASK_FSGNJN_D  0xfe00707f
 #define MATCH_FSGNJN_S 0x20001053
 #define MASK_FSGNJN_S  0xfe00707f
-#define MATCH_AMOSWAP_D 0x800302f
-#define MASK_AMOSWAP_D  0xf800707f
+#define MATCH_FSGNJX_D 0x22002053
+#define MASK_FSGNJX_D  0xfe00707f
+#define MATCH_FSGNJX_S 0x20002053
+#define MASK_FSGNJX_S  0xfe00707f
 #define MATCH_FSQRT_D 0x5a000053
 #define MASK_FSQRT_D  0xfff0007f
-#define MATCH_FMADD_D 0x2000043
-#define MASK_FMADD_D  0x600007f
-#define MATCH_DIVW 0x200403b
-#define MASK_DIVW  0xfe00707f
-#define MATCH_AMOMIN_D 0x8000302f
-#define MASK_AMOMIN_D  0xf800707f
-#define MATCH_DIVU 0x2005033
-#define MASK_DIVU  0xfe00707f
-#define MATCH_AMOSWAP_W 0x800202f
-#define MASK_AMOSWAP_W  0xf800707f
+#define MATCH_FSQRT_S 0x58000053
+#define MASK_FSQRT_S  0xfff0007f
+#define MATCH_FSUB_D 0xa000053
+#define MASK_FSUB_D  0xfe00007f
+#define MATCH_FSUB_S 0x8000053
+#define MASK_FSUB_S  0xfe00007f
+#define MATCH_FSW 0x2027
+#define MASK_FSW  0x707f
+#define MATCH_HRTS 0x20500073
+#define MASK_HRTS  0xffffffff
+#define MATCH_JAL 0x6f
+#define MASK_JAL  0x7f
 #define MATCH_JALR 0x67
 #define MASK_JALR  0x707f
-#define MATCH_FSD 0x3027
-#define MASK_FSD  0x707f
-#define MATCH_SW 0x2023
-#define MASK_SW  0x707f
-#define MATCH_FMSUB_S 0x47
-#define MASK_FMSUB_S  0x600007f
+#define MATCH_LB 0x3
+#define MASK_LB  0x707f
+#define MATCH_LBU 0x4003
+#define MASK_LBU  0x707f
+#define MATCH_LD 0x3003
+#define MASK_LD  0x707f
+#define MATCH_LH 0x1003
+#define MASK_LH  0x707f
 #define MATCH_LHU 0x5003
 #define MASK_LHU  0x707f
-#define MATCH_SH 0x1023
-#define MASK_SH  0x707f
-#define MATCH_FSW 0x2027
-#define MASK_FSW  0x707f
+#define MATCH_LR_D 0x1000302f
+#define MASK_LR_D  0xf9f0707f
+#define MATCH_LR_W 0x1000202f
+#define MASK_LR_W  0xf9f0707f
+#define MATCH_LUI 0x37
+#define MASK_LUI  0x7f
+#define MATCH_LW 0x2003
+#define MASK_LW  0x707f
+#define MATCH_LWU 0x6003
+#define MASK_LWU  0x707f
+#define MATCH_MRTH 0x30600073
+#define MASK_MRTH  0xffffffff
+#define MATCH_MRTS 0x30500073
+#define MASK_MRTS  0xffffffff
+#define MATCH_MUL 0x2000033
+#define MASK_MUL  0xfe00707f
+#define MATCH_MULH 0x2001033
+#define MASK_MULH  0xfe00707f
+#define MATCH_MULHSU 0x2002033
+#define MASK_MULHSU  0xfe00707f
+#define MATCH_MULHU 0x2003033
+#define MASK_MULHU  0xfe00707f
+#define MATCH_MULW 0x200003b
+#define MASK_MULW  0xfe00707f
+#define MATCH_OR 0x6033
+#define MASK_OR  0xfe00707f
+#define MATCH_ORI 0x6013
+#define MASK_ORI  0x707f
+#define MATCH_REM 0x2006033
+#define MASK_REM  0xfe00707f
+#define MATCH_REMU 0x2007033
+#define MASK_REMU  0xfe00707f
+#define MATCH_REMUW 0x200703b
+#define MASK_REMUW  0xfe00707f
+#define MATCH_REMW 0x200603b
+#define MASK_REMW  0xfe00707f
 #define MATCH_SB 0x23
 #define MASK_SB  0x707f
-#define MATCH_FMSUB_D 0x2000047
-#define MASK_FMSUB_D  0x600007f
+#define MATCH_SBREAK 0x100073
+#define MASK_SBREAK  0xffffffff
+#define MATCH_SC_D 0x1800302f
+#define MASK_SC_D  0xf800707f
+#define MATCH_SC_W 0x1800202f
+#define MASK_SC_W  0xf800707f
+#define MATCH_SCALL 0x73
+#define MASK_SCALL  0xffffffff
 #define MATCH_SD 0x3023
 #define MASK_SD  0x707f
+#define MATCH_SFENCE_VM 0x10100073
+#define MASK_SFENCE_VM  0xfff07fff
+#define MATCH_SH 0x1023
+#define MASK_SH  0x707f
+#define MATCH_SLL 0x1033
+#define MASK_SLL  0xfe00707f
+#define MATCH_SLLI 0x1013
+#define MASK_SLLI  0xfc00707f
+#define MATCH_SLLIW 0x101b
+#define MASK_SLLIW  0xfe00707f
+#define MATCH_SLLW 0x103b
+#define MASK_SLLW  0xfe00707f
+#define MATCH_SLT 0x2033
+#define MASK_SLT  0xfe00707f
+#define MATCH_SLTI 0x2013
+#define MASK_SLTI  0x707f
+#define MATCH_SLTIU 0x3013
+#define MASK_SLTIU  0x707f
+#define MATCH_SLTU 0x3033
+#define MASK_SLTU  0xfe00707f
+#define MATCH_SRA 0x40005033
+#define MASK_SRA  0xfe00707f
+#define MATCH_SRAI 0x40005013
+#define MASK_SRAI  0xfc00707f
+#define MATCH_SRAIW 0x4000501b
+#define MASK_SRAIW  0xfe00707f
+#define MATCH_SRAW 0x4000503b
+#define MASK_SRAW  0xfe00707f
+#define MATCH_SRET 0x10000073
+#define MASK_SRET  0xffffffff
+#define MATCH_SRL 0x5033
+#define MASK_SRL  0xfe00707f
+#define MATCH_SRLI 0x5013
+#define MASK_SRLI  0xfc00707f
+#define MATCH_SRLIW 0x501b
+#define MASK_SRLIW  0xfe00707f
+#define MATCH_SRLW 0x503b
+#define MASK_SRLW  0xfe00707f
+#define MATCH_SUB 0x40000033
+#define MASK_SUB  0xfe00707f
+#define MATCH_SUBW 0x4000003b
+#define MASK_SUBW  0xfe00707f
+#define MATCH_SW 0x2023
+#define MASK_SW  0x707f
+#define MATCH_WFI 0x10200073
+#define MASK_WFI  0xffffffff
+#define MATCH_XOR 0x4033
+#define MASK_XOR  0xfe00707f
+#define MATCH_XORI 0x4013
+#define MASK_XORI  0x707f
 #define CSR_FFLAGS 0x1
 #define CSR_FRM 0x2
 #define CSR_FCSR 0x3
-#define CSR_STATS 0xc0
-#define CSR_SUP0 0x500
-#define CSR_SUP1 0x501
-#define CSR_EPC 0x502
-#define CSR_BADVADDR 0x503
-#define CSR_PTBR 0x504
-#define CSR_ASID 0x505
-#define CSR_COUNT 0x506
-#define CSR_COMPARE 0x507
-#define CSR_EVEC 0x508
-#define CSR_CAUSE 0x509
-#define CSR_STATUS 0x50a
-#define CSR_HARTID 0x50b
-#define CSR_IMPL 0x50c
-#define CSR_FATC 0x50d
-#define CSR_SEND_IPI 0x50e
-#define CSR_CLEAR_IPI 0x50f
-#define CSR_RESET 0x51d
-#define CSR_TOHOST 0x51e
-#define CSR_FROMHOST 0x51f
 #define CSR_CYCLE 0xc00
 #define CSR_TIME 0xc01
 #define CSR_INSTRET 0xc02
+#define CSR_STATS 0xc0
 #define CSR_UARCH0 0xcc0
 #define CSR_UARCH1 0xcc1
 #define CSR_UARCH2 0xcc2
@@ -453,209 +573,263 @@
 #define CSR_UARCH13 0xccd
 #define CSR_UARCH14 0xcce
 #define CSR_UARCH15 0xccf
-#define CSR_COUNTH 0x586
+#define CSR_SSTATUS 0x100
+#define CSR_STVEC 0x101
+#define CSR_SIE 0x104
+#define CSR_SSCRATCH 0x140
+#define CSR_SEPC 0x141
+#define CSR_SIP 0x144
+#define CSR_SPTBR 0x180
+#define CSR_SASID 0x181
+#define CSR_CYCLEW 0x900
+#define CSR_TIMEW 0x901
+#define CSR_INSTRETW 0x902
+#define CSR_STIME 0xd01
+#define CSR_SCAUSE 0xd42
+#define CSR_SBADADDR 0xd43
+#define CSR_STIMEW 0xa01
+#define CSR_MSTATUS 0x300
+#define CSR_MTVEC 0x301
+#define CSR_MTDELEG 0x302
+#define CSR_MIE 0x304
+#define CSR_MTIMECMP 0x321
+#define CSR_MSCRATCH 0x340
+#define CSR_MEPC 0x341
+#define CSR_MCAUSE 0x342
+#define CSR_MBADADDR 0x343
+#define CSR_MIP 0x344
+#define CSR_MTIME 0x701
+#define CSR_MCPUID 0xf00
+#define CSR_MIMPID 0xf01
+#define CSR_MHARTID 0xf10
+#define CSR_MTOHOST 0x780
+#define CSR_MFROMHOST 0x781
+#define CSR_MRESET 0x782
+#define CSR_SEND_IPI 0x783
 #define CSR_CYCLEH 0xc80
 #define CSR_TIMEH 0xc81
 #define CSR_INSTRETH 0xc82
+#define CSR_CYCLEHW 0x980
+#define CSR_TIMEHW 0x981
+#define CSR_INSTRETHW 0x982
+#define CSR_STIMEH 0xd81
+#define CSR_STIMEHW 0xa81
+#define CSR_MTIMECMPH 0x361
+#define CSR_MTIMEH 0x741
 #define CAUSE_MISALIGNED_FETCH 0x0
 #define CAUSE_FAULT_FETCH 0x1
 #define CAUSE_ILLEGAL_INSTRUCTION 0x2
-#define CAUSE_PRIVILEGED_INSTRUCTION 0x3
-#define CAUSE_FP_DISABLED 0x4
-#define CAUSE_SYSCALL 0x6
-#define CAUSE_BREAKPOINT 0x7
-#define CAUSE_MISALIGNED_LOAD 0x8
-#define CAUSE_MISALIGNED_STORE 0x9
-#define CAUSE_FAULT_LOAD 0xa
-#define CAUSE_FAULT_STORE 0xb
-#define CAUSE_ACCELERATOR_DISABLED 0xc
+#define CAUSE_BREAKPOINT 0x3
+#define CAUSE_MISALIGNED_LOAD 0x4
+#define CAUSE_FAULT_LOAD 0x5
+#define CAUSE_MISALIGNED_STORE 0x6
+#define CAUSE_FAULT_STORE 0x7
+#define CAUSE_USER_ECALL 0x8
+#define CAUSE_SUPERVISOR_ECALL 0x9
+#define CAUSE_HYPERVISOR_ECALL 0xa
+#define CAUSE_MACHINE_ECALL 0xb
 #endif
 #ifdef DECLARE_INSN
-DECLARE_INSN(fmv_s_x, MATCH_FMV_S_X, MASK_FMV_S_X)
-DECLARE_INSN(amoxor_w, MATCH_AMOXOR_W, MASK_AMOXOR_W)
-DECLARE_INSN(remuw, MATCH_REMUW, MASK_REMUW)
-DECLARE_INSN(fmin_d, MATCH_FMIN_D, MASK_FMIN_D)
+DECLARE_INSN(add, MATCH_ADD, MASK_ADD)
+DECLARE_INSN(addi, MATCH_ADDI, MASK_ADDI)
+DECLARE_INSN(addiw, MATCH_ADDIW, MASK_ADDIW)
+DECLARE_INSN(addw, MATCH_ADDW, MASK_ADDW)
+DECLARE_INSN(amoadd_d, MATCH_AMOADD_D, MASK_AMOADD_D)
+DECLARE_INSN(amoadd_w, MATCH_AMOADD_W, MASK_AMOADD_W)
+DECLARE_INSN(amoand_d, MATCH_AMOAND_D, MASK_AMOAND_D)
+DECLARE_INSN(amoand_w, MATCH_AMOAND_W, MASK_AMOAND_W)
 DECLARE_INSN(amomax_d, MATCH_AMOMAX_D, MASK_AMOMAX_D)
+DECLARE_INSN(amomax_w, MATCH_AMOMAX_W, MASK_AMOMAX_W)
+DECLARE_INSN(amomaxu_d, MATCH_AMOMAXU_D, MASK_AMOMAXU_D)
+DECLARE_INSN(amomaxu_w, MATCH_AMOMAXU_W, MASK_AMOMAXU_W)
+DECLARE_INSN(amomin_d, MATCH_AMOMIN_D, MASK_AMOMIN_D)
+DECLARE_INSN(amomin_w, MATCH_AMOMIN_W, MASK_AMOMIN_W)
+DECLARE_INSN(amominu_d, MATCH_AMOMINU_D, MASK_AMOMINU_D)
+DECLARE_INSN(amominu_w, MATCH_AMOMINU_W, MASK_AMOMINU_W)
+DECLARE_INSN(amoor_d, MATCH_AMOOR_D, MASK_AMOOR_D)
+DECLARE_INSN(amoor_w, MATCH_AMOOR_W, MASK_AMOOR_W)
+DECLARE_INSN(amoswap_d, MATCH_AMOSWAP_D, MASK_AMOSWAP_D)
+DECLARE_INSN(amoswap_w, MATCH_AMOSWAP_W, MASK_AMOSWAP_W)
+DECLARE_INSN(amoxor_d, MATCH_AMOXOR_D, MASK_AMOXOR_D)
+DECLARE_INSN(amoxor_w, MATCH_AMOXOR_W, MASK_AMOXOR_W)
+DECLARE_INSN(and, MATCH_AND, MASK_AND)
+DECLARE_INSN(andi, MATCH_ANDI, MASK_ANDI)
+DECLARE_INSN(auipc, MATCH_AUIPC, MASK_AUIPC)
+DECLARE_INSN(beq, MATCH_BEQ, MASK_BEQ)
+DECLARE_INSN(bge, MATCH_BGE, MASK_BGE)
+DECLARE_INSN(bgeu, MATCH_BGEU, MASK_BGEU)
+DECLARE_INSN(blt, MATCH_BLT, MASK_BLT)
 DECLARE_INSN(bltu, MATCH_BLTU, MASK_BLTU)
-DECLARE_INSN(fsgnjn_d, MATCH_FSGNJN_D, MASK_FSGNJN_D)
-DECLARE_INSN(fmin_s, MATCH_FMIN_S, MASK_FMIN_S)
-DECLARE_INSN(csrrw, MATCH_CSRRW, MASK_CSRRW)
-DECLARE_INSN(slliw, MATCH_SLLIW, MASK_SLLIW)
-DECLARE_INSN(lb, MATCH_LB, MASK_LB)
-DECLARE_INSN(fmax_s, MATCH_FMAX_S, MASK_FMAX_S)
-DECLARE_INSN(lh, MATCH_LH, MASK_LH)
-DECLARE_INSN(fcvt_d_w, MATCH_FCVT_D_W, MASK_FCVT_D_W)
-DECLARE_INSN(lw, MATCH_LW, MASK_LW)
-DECLARE_INSN(add, MATCH_ADD, MASK_ADD)
-DECLARE_INSN(csrrc, MATCH_CSRRC, MASK_CSRRC)
-DECLARE_INSN(fmax_d, MATCH_FMAX_D, MASK_FMAX_D)
 DECLARE_INSN(bne, MATCH_BNE, MASK_BNE)
-DECLARE_INSN(fcvt_s_d, MATCH_FCVT_S_D, MASK_FCVT_S_D)
-DECLARE_INSN(bgeu, MATCH_BGEU, MASK_BGEU)
+DECLARE_INSN(c_add, MATCH_C_ADD, MASK_C_ADD)
+DECLARE_INSN(c_add3, MATCH_C_ADD3, MASK_C_ADD3)
+DECLARE_INSN(c_addi, MATCH_C_ADDI, MASK_C_ADDI)
+DECLARE_INSN(c_addi4spn, MATCH_C_ADDI4SPN, MASK_C_ADDI4SPN)
+DECLARE_INSN(c_addiw, MATCH_C_ADDIW, MASK_C_ADDIW)
+DECLARE_INSN(c_addw, MATCH_C_ADDW, MASK_C_ADDW)
+DECLARE_INSN(c_and3, MATCH_C_AND3, MASK_C_AND3)
+DECLARE_INSN(c_beqz, MATCH_C_BEQZ, MASK_C_BEQZ)
+DECLARE_INSN(c_bnez, MATCH_C_BNEZ, MASK_C_BNEZ)
+DECLARE_INSN(c_j, MATCH_C_J, MASK_C_J)
+DECLARE_INSN(c_jal, MATCH_C_JAL, MASK_C_JAL)
+DECLARE_INSN(c_ld, MATCH_C_LD, MASK_C_LD)
+DECLARE_INSN(c_ldsp, MATCH_C_LDSP, MASK_C_LDSP)
+DECLARE_INSN(c_li, MATCH_C_LI, MASK_C_LI)
+DECLARE_INSN(c_lui, MATCH_C_LUI, MASK_C_LUI)
+DECLARE_INSN(c_lw, MATCH_C_LW, MASK_C_LW)
+DECLARE_INSN(c_lwsp, MATCH_C_LWSP, MASK_C_LWSP)
+DECLARE_INSN(c_mv, MATCH_C_MV, MASK_C_MV)
+DECLARE_INSN(c_or3, MATCH_C_OR3, MASK_C_OR3)
+DECLARE_INSN(c_sd, MATCH_C_SD, MASK_C_SD)
+DECLARE_INSN(c_sdsp, MATCH_C_SDSP, MASK_C_SDSP)
+DECLARE_INSN(c_slli, MATCH_C_SLLI, MASK_C_SLLI)
+DECLARE_INSN(c_slliw, MATCH_C_SLLIW, MASK_C_SLLIW)
+DECLARE_INSN(c_srai, MATCH_C_SRAI, MASK_C_SRAI)
+DECLARE_INSN(c_srli, MATCH_C_SRLI, MASK_C_SRLI)
+DECLARE_INSN(c_sub, MATCH_C_SUB, MASK_C_SUB)
+DECLARE_INSN(c_sub3, MATCH_C_SUB3, MASK_C_SUB3)
+DECLARE_INSN(c_sw, MATCH_C_SW, MASK_C_SW)
+DECLARE_INSN(c_swsp, MATCH_C_SWSP, MASK_C_SWSP)
+DECLARE_INSN(csrrc, MATCH_CSRRC, MASK_CSRRC)
+DECLARE_INSN(csrrci, MATCH_CSRRCI, MASK_CSRRCI)
+DECLARE_INSN(csrrs, MATCH_CSRRS, MASK_CSRRS)
+DECLARE_INSN(csrrsi, MATCH_CSRRSI, MASK_CSRRSI)
+DECLARE_INSN(csrrw, MATCH_CSRRW, MASK_CSRRW)
+DECLARE_INSN(csrrwi, MATCH_CSRRWI, MASK_CSRRWI)
+DECLARE_INSN(div, MATCH_DIV, MASK_DIV)
+DECLARE_INSN(divu, MATCH_DIVU, MASK_DIVU)
+DECLARE_INSN(divuw, MATCH_DIVUW, MASK_DIVUW)
+DECLARE_INSN(divw, MATCH_DIVW, MASK_DIVW)
 DECLARE_INSN(fadd_d, MATCH_FADD_D, MASK_FADD_D)
-DECLARE_INSN(sltiu, MATCH_SLTIU, MASK_SLTIU)
 DECLARE_INSN(fadd_s, MATCH_FADD_S, MASK_FADD_S)
 DECLARE_INSN(fclass_d, MATCH_FCLASS_D, MASK_FCLASS_D)
-DECLARE_INSN(fcvt_s_w, MATCH_FCVT_S_W, MASK_FCVT_S_W)
-DECLARE_INSN(mul, MATCH_MUL, MASK_MUL)
-DECLARE_INSN(amominu_d, MATCH_AMOMINU_D, MASK_AMOMINU_D)
+DECLARE_INSN(fclass_s, MATCH_FCLASS_S, MASK_FCLASS_S)
+DECLARE_INSN(fcvt_d_l, MATCH_FCVT_D_L, MASK_FCVT_D_L)
+DECLARE_INSN(fcvt_d_lu, MATCH_FCVT_D_LU, MASK_FCVT_D_LU)
+DECLARE_INSN(fcvt_d_s, MATCH_FCVT_D_S, MASK_FCVT_D_S)
+DECLARE_INSN(fcvt_d_w, MATCH_FCVT_D_W, MASK_FCVT_D_W)
+DECLARE_INSN(fcvt_d_wu, MATCH_FCVT_D_WU, MASK_FCVT_D_WU)
+DECLARE_INSN(fcvt_l_d, MATCH_FCVT_L_D, MASK_FCVT_L_D)
+DECLARE_INSN(fcvt_l_s, MATCH_FCVT_L_S, MASK_FCVT_L_S)
+DECLARE_INSN(fcvt_lu_d, MATCH_FCVT_LU_D, MASK_FCVT_LU_D)
+DECLARE_INSN(fcvt_lu_s, MATCH_FCVT_LU_S, MASK_FCVT_LU_S)
+DECLARE_INSN(fcvt_s_d, MATCH_FCVT_S_D, MASK_FCVT_S_D)
+DECLARE_INSN(fcvt_s_l, MATCH_FCVT_S_L, MASK_FCVT_S_L)
 DECLARE_INSN(fcvt_s_lu, MATCH_FCVT_S_LU, MASK_FCVT_S_LU)
-DECLARE_INSN(srli, MATCH_SRLI, MASK_SRLI)
-DECLARE_INSN(amominu_w, MATCH_AMOMINU_W, MASK_AMOMINU_W)
-DECLARE_INSN(divuw, MATCH_DIVUW, MASK_DIVUW)
-DECLARE_INSN(mulw, MATCH_MULW, MASK_MULW)
-DECLARE_INSN(srlw, MATCH_SRLW, MASK_SRLW)
-DECLARE_INSN(div, MATCH_DIV, MASK_DIV)
+DECLARE_INSN(fcvt_s_w, MATCH_FCVT_S_W, MASK_FCVT_S_W)
+DECLARE_INSN(fcvt_s_wu, MATCH_FCVT_S_WU, MASK_FCVT_S_WU)
+DECLARE_INSN(fcvt_w_d, MATCH_FCVT_W_D, MASK_FCVT_W_D)
+DECLARE_INSN(fcvt_w_s, MATCH_FCVT_W_S, MASK_FCVT_W_S)
+DECLARE_INSN(fcvt_wu_d, MATCH_FCVT_WU_D, MASK_FCVT_WU_D)
+DECLARE_INSN(fcvt_wu_s, MATCH_FCVT_WU_S, MASK_FCVT_WU_S)
 DECLARE_INSN(fdiv_d, MATCH_FDIV_D, MASK_FDIV_D)
-DECLARE_INSN(fence, MATCH_FENCE, MASK_FENCE)
-DECLARE_INSN(fnmsub_s, MATCH_FNMSUB_S, MASK_FNMSUB_S)
-DECLARE_INSN(fcvt_l_s, MATCH_FCVT_L_S, MASK_FCVT_L_S)
-DECLARE_INSN(sbreak, MATCH_SBREAK, MASK_SBREAK)
-DECLARE_INSN(fle_s, MATCH_FLE_S, MASK_FLE_S)
 DECLARE_INSN(fdiv_s, MATCH_FDIV_S, MASK_FDIV_S)
-DECLARE_INSN(fle_d, MATCH_FLE_D, MASK_FLE_D)
+DECLARE_INSN(fence, MATCH_FENCE, MASK_FENCE)
 DECLARE_INSN(fence_i, MATCH_FENCE_I, MASK_FENCE_I)
-DECLARE_INSN(fnmsub_d, MATCH_FNMSUB_D, MASK_FNMSUB_D)
-DECLARE_INSN(addw, MATCH_ADDW, MASK_ADDW)
-DECLARE_INSN(sll, MATCH_SLL, MASK_SLL)
-DECLARE_INSN(xor, MATCH_XOR, MASK_XOR)
-DECLARE_INSN(sub, MATCH_SUB, MASK_SUB)
-DECLARE_INSN(blt, MATCH_BLT, MASK_BLT)
-DECLARE_INSN(scall, MATCH_SCALL, MASK_SCALL)
-DECLARE_INSN(fclass_s, MATCH_FCLASS_S, MASK_FCLASS_S)
-DECLARE_INSN(sc_w, MATCH_SC_W, MASK_SC_W)
-DECLARE_INSN(rem, MATCH_REM, MASK_REM)
-DECLARE_INSN(srliw, MATCH_SRLIW, MASK_SRLIW)
-DECLARE_INSN(lui, MATCH_LUI, MASK_LUI)
-DECLARE_INSN(csrrci, MATCH_CSRRCI, MASK_CSRRCI)
-DECLARE_INSN(addi, MATCH_ADDI, MASK_ADDI)
-DECLARE_INSN(mulh, MATCH_MULH, MASK_MULH)
-DECLARE_INSN(fmul_s, MATCH_FMUL_S, MASK_FMUL_S)
-DECLARE_INSN(csrrsi, MATCH_CSRRSI, MASK_CSRRSI)
-DECLARE_INSN(srai, MATCH_SRAI, MASK_SRAI)
-DECLARE_INSN(amoand_d, MATCH_AMOAND_D, MASK_AMOAND_D)
+DECLARE_INSN(feq_d, MATCH_FEQ_D, MASK_FEQ_D)
+DECLARE_INSN(feq_s, MATCH_FEQ_S, MASK_FEQ_S)
+DECLARE_INSN(fld, MATCH_FLD, MASK_FLD)
+DECLARE_INSN(fle_d, MATCH_FLE_D, MASK_FLE_D)
+DECLARE_INSN(fle_s, MATCH_FLE_S, MASK_FLE_S)
 DECLARE_INSN(flt_d, MATCH_FLT_D, MASK_FLT_D)
-DECLARE_INSN(sraw, MATCH_SRAW, MASK_SRAW)
-DECLARE_INSN(fmul_d, MATCH_FMUL_D, MASK_FMUL_D)
-DECLARE_INSN(ld, MATCH_LD, MASK_LD)
-DECLARE_INSN(ori, MATCH_ORI, MASK_ORI)
-DECLARE_INSN(csrrs, MATCH_CSRRS, MASK_CSRRS)
 DECLARE_INSN(flt_s, MATCH_FLT_S, MASK_FLT_S)
-DECLARE_INSN(addiw, MATCH_ADDIW, MASK_ADDIW)
-DECLARE_INSN(amoand_w, MATCH_AMOAND_W, MASK_AMOAND_W)
-DECLARE_INSN(feq_s, MATCH_FEQ_S, MASK_FEQ_S)
-DECLARE_INSN(fsgnjx_d, MATCH_FSGNJX_D, MASK_FSGNJX_D)
-DECLARE_INSN(sra, MATCH_SRA, MASK_SRA)
-DECLARE_INSN(bge, MATCH_BGE, MASK_BGE)
-DECLARE_INSN(sraiw, MATCH_SRAIW, MASK_SRAIW)
-DECLARE_INSN(srl, MATCH_SRL, MASK_SRL)
-DECLARE_INSN(fsub_d, MATCH_FSUB_D, MASK_FSUB_D)
-DECLARE_INSN(fsgnjx_s, MATCH_FSGNJX_S, MASK_FSGNJX_S)
-DECLARE_INSN(feq_d, MATCH_FEQ_D, MASK_FEQ_D)
-DECLARE_INSN(fcvt_d_wu, MATCH_FCVT_D_WU, MASK_FCVT_D_WU)
-DECLARE_INSN(or, MATCH_OR, MASK_OR)
-DECLARE_INSN(fcvt_wu_d, MATCH_FCVT_WU_D, MASK_FCVT_WU_D)
-DECLARE_INSN(subw, MATCH_SUBW, MASK_SUBW)
-DECLARE_INSN(fcvt_d_l, MATCH_FCVT_D_L, MASK_FCVT_D_L)
-DECLARE_INSN(amomaxu_d, MATCH_AMOMAXU_D, MASK_AMOMAXU_D)
-DECLARE_INSN(xori, MATCH_XORI, MASK_XORI)
-DECLARE_INSN(amoxor_d, MATCH_AMOXOR_D, MASK_AMOXOR_D)
-DECLARE_INSN(amomaxu_w, MATCH_AMOMAXU_W, MASK_AMOMAXU_W)
-DECLARE_INSN(fcvt_wu_s, MATCH_FCVT_WU_S, MASK_FCVT_WU_S)
-DECLARE_INSN(andi, MATCH_ANDI, MASK_ANDI)
-DECLARE_INSN(fmv_x_s, MATCH_FMV_X_S, MASK_FMV_X_S)
-DECLARE_INSN(sret, MATCH_SRET, MASK_SRET)
-DECLARE_INSN(fnmadd_s, MATCH_FNMADD_S, MASK_FNMADD_S)
-DECLARE_INSN(jal, MATCH_JAL, MASK_JAL)
-DECLARE_INSN(lwu, MATCH_LWU, MASK_LWU)
-DECLARE_INSN(fmv_x_d, MATCH_FMV_X_D, MASK_FMV_X_D)
-DECLARE_INSN(fcvt_d_s, MATCH_FCVT_D_S, MASK_FCVT_D_S)
-DECLARE_INSN(fnmadd_d, MATCH_FNMADD_D, MASK_FNMADD_D)
-DECLARE_INSN(amoadd_d, MATCH_AMOADD_D, MASK_AMOADD_D)
-DECLARE_INSN(lr_d, MATCH_LR_D, MASK_LR_D)
-DECLARE_INSN(fcvt_w_s, MATCH_FCVT_W_S, MASK_FCVT_W_S)
-DECLARE_INSN(mulhsu, MATCH_MULHSU, MASK_MULHSU)
-DECLARE_INSN(amoadd_w, MATCH_AMOADD_W, MASK_AMOADD_W)
-DECLARE_INSN(fcvt_d_lu, MATCH_FCVT_D_LU, MASK_FCVT_D_LU)
-DECLARE_INSN(lr_w, MATCH_LR_W, MASK_LR_W)
-DECLARE_INSN(fcvt_w_d, MATCH_FCVT_W_D, MASK_FCVT_W_D)
-DECLARE_INSN(slt, MATCH_SLT, MASK_SLT)
-DECLARE_INSN(sllw, MATCH_SLLW, MASK_SLLW)
-DECLARE_INSN(amoor_d, MATCH_AMOOR_D, MASK_AMOOR_D)
-DECLARE_INSN(slti, MATCH_SLTI, MASK_SLTI)
-DECLARE_INSN(remu, MATCH_REMU, MASK_REMU)
 DECLARE_INSN(flw, MATCH_FLW, MASK_FLW)
-DECLARE_INSN(remw, MATCH_REMW, MASK_REMW)
-DECLARE_INSN(sltu, MATCH_SLTU, MASK_SLTU)
-DECLARE_INSN(slli, MATCH_SLLI, MASK_SLLI)
-DECLARE_INSN(amoor_w, MATCH_AMOOR_W, MASK_AMOOR_W)
-DECLARE_INSN(beq, MATCH_BEQ, MASK_BEQ)
-DECLARE_INSN(fld, MATCH_FLD, MASK_FLD)
-DECLARE_INSN(fsub_s, MATCH_FSUB_S, MASK_FSUB_S)
-DECLARE_INSN(and, MATCH_AND, MASK_AND)
+DECLARE_INSN(fmadd_d, MATCH_FMADD_D, MASK_FMADD_D)
+DECLARE_INSN(fmadd_s, MATCH_FMADD_S, MASK_FMADD_S)
+DECLARE_INSN(fmax_d, MATCH_FMAX_D, MASK_FMAX_D)
+DECLARE_INSN(fmax_s, MATCH_FMAX_S, MASK_FMAX_S)
+DECLARE_INSN(fmin_d, MATCH_FMIN_D, MASK_FMIN_D)
+DECLARE_INSN(fmin_s, MATCH_FMIN_S, MASK_FMIN_S)
+DECLARE_INSN(fmsub_d, MATCH_FMSUB_D, MASK_FMSUB_D)
+DECLARE_INSN(fmsub_s, MATCH_FMSUB_S, MASK_FMSUB_S)
+DECLARE_INSN(fmul_d, MATCH_FMUL_D, MASK_FMUL_D)
+DECLARE_INSN(fmul_s, MATCH_FMUL_S, MASK_FMUL_S)
 DECLARE_INSN(fmv_d_x, MATCH_FMV_D_X, MASK_FMV_D_X)
-DECLARE_INSN(lbu, MATCH_LBU, MASK_LBU)
-DECLARE_INSN(fsgnj_s, MATCH_FSGNJ_S, MASK_FSGNJ_S)
-DECLARE_INSN(amomax_w, MATCH_AMOMAX_W, MASK_AMOMAX_W)
+DECLARE_INSN(fmv_s_x, MATCH_FMV_S_X, MASK_FMV_S_X)
+DECLARE_INSN(fmv_x_d, MATCH_FMV_X_D, MASK_FMV_X_D)
+DECLARE_INSN(fmv_x_s, MATCH_FMV_X_S, MASK_FMV_X_S)
+DECLARE_INSN(fnmadd_d, MATCH_FNMADD_D, MASK_FNMADD_D)
+DECLARE_INSN(fnmadd_s, MATCH_FNMADD_S, MASK_FNMADD_S)
+DECLARE_INSN(fnmsub_d, MATCH_FNMSUB_D, MASK_FNMSUB_D)
+DECLARE_INSN(fnmsub_s, MATCH_FNMSUB_S, MASK_FNMSUB_S)
+DECLARE_INSN(fsd, MATCH_FSD, MASK_FSD)
 DECLARE_INSN(fsgnj_d, MATCH_FSGNJ_D, MASK_FSGNJ_D)
-DECLARE_INSN(mulhu, MATCH_MULHU, MASK_MULHU)
-DECLARE_INSN(fcvt_l_d, MATCH_FCVT_L_D, MASK_FCVT_L_D)
-DECLARE_INSN(fcvt_s_wu, MATCH_FCVT_S_WU, MASK_FCVT_S_WU)
-DECLARE_INSN(fcvt_lu_s, MATCH_FCVT_LU_S, MASK_FCVT_LU_S)
-DECLARE_INSN(fcvt_s_l, MATCH_FCVT_S_L, MASK_FCVT_S_L)
-DECLARE_INSN(auipc, MATCH_AUIPC, MASK_AUIPC)
-DECLARE_INSN(fcvt_lu_d, MATCH_FCVT_LU_D, MASK_FCVT_LU_D)
-DECLARE_INSN(csrrwi, MATCH_CSRRWI, MASK_CSRRWI)
-DECLARE_INSN(sc_d, MATCH_SC_D, MASK_SC_D)
-DECLARE_INSN(fmadd_s, MATCH_FMADD_S, MASK_FMADD_S)
-DECLARE_INSN(fsqrt_s, MATCH_FSQRT_S, MASK_FSQRT_S)
-DECLARE_INSN(amomin_w, MATCH_AMOMIN_W, MASK_AMOMIN_W)
+DECLARE_INSN(fsgnj_s, MATCH_FSGNJ_S, MASK_FSGNJ_S)
+DECLARE_INSN(fsgnjn_d, MATCH_FSGNJN_D, MASK_FSGNJN_D)
 DECLARE_INSN(fsgnjn_s, MATCH_FSGNJN_S, MASK_FSGNJN_S)
-DECLARE_INSN(amoswap_d, MATCH_AMOSWAP_D, MASK_AMOSWAP_D)
+DECLARE_INSN(fsgnjx_d, MATCH_FSGNJX_D, MASK_FSGNJX_D)
+DECLARE_INSN(fsgnjx_s, MATCH_FSGNJX_S, MASK_FSGNJX_S)
 DECLARE_INSN(fsqrt_d, MATCH_FSQRT_D, MASK_FSQRT_D)
-DECLARE_INSN(fmadd_d, MATCH_FMADD_D, MASK_FMADD_D)
-DECLARE_INSN(divw, MATCH_DIVW, MASK_DIVW)
-DECLARE_INSN(amomin_d, MATCH_AMOMIN_D, MASK_AMOMIN_D)
-DECLARE_INSN(divu, MATCH_DIVU, MASK_DIVU)
-DECLARE_INSN(amoswap_w, MATCH_AMOSWAP_W, MASK_AMOSWAP_W)
+DECLARE_INSN(fsqrt_s, MATCH_FSQRT_S, MASK_FSQRT_S)
+DECLARE_INSN(fsub_d, MATCH_FSUB_D, MASK_FSUB_D)
+DECLARE_INSN(fsub_s, MATCH_FSUB_S, MASK_FSUB_S)
+DECLARE_INSN(fsw, MATCH_FSW, MASK_FSW)
+DECLARE_INSN(hrts, MATCH_HRTS, MASK_HRTS)
+DECLARE_INSN(jal, MATCH_JAL, MASK_JAL)
 DECLARE_INSN(jalr, MATCH_JALR, MASK_JALR)
-DECLARE_INSN(fsd, MATCH_FSD, MASK_FSD)
-DECLARE_INSN(sw, MATCH_SW, MASK_SW)
-DECLARE_INSN(fmsub_s, MATCH_FMSUB_S, MASK_FMSUB_S)
+DECLARE_INSN(lb, MATCH_LB, MASK_LB)
+DECLARE_INSN(lbu, MATCH_LBU, MASK_LBU)
+DECLARE_INSN(ld, MATCH_LD, MASK_LD)
+DECLARE_INSN(lh, MATCH_LH, MASK_LH)
 DECLARE_INSN(lhu, MATCH_LHU, MASK_LHU)
-DECLARE_INSN(sh, MATCH_SH, MASK_SH)
-DECLARE_INSN(fsw, MATCH_FSW, MASK_FSW)
+DECLARE_INSN(lr_d, MATCH_LR_D, MASK_LR_D)
+DECLARE_INSN(lr_w, MATCH_LR_W, MASK_LR_W)
+DECLARE_INSN(lui, MATCH_LUI, MASK_LUI)
+DECLARE_INSN(lw, MATCH_LW, MASK_LW)
+DECLARE_INSN(lwu, MATCH_LWU, MASK_LWU)
+DECLARE_INSN(mrth, MATCH_MRTH, MASK_MRTH)
+DECLARE_INSN(mrts, MATCH_MRTS, MASK_MRTS)
+DECLARE_INSN(mul, MATCH_MUL, MASK_MUL)
+DECLARE_INSN(mulh, MATCH_MULH, MASK_MULH)
+DECLARE_INSN(mulhsu, MATCH_MULHSU, MASK_MULHSU)
+DECLARE_INSN(mulhu, MATCH_MULHU, MASK_MULHU)
+DECLARE_INSN(mulw, MATCH_MULW, MASK_MULW)
+DECLARE_INSN(or, MATCH_OR, MASK_OR)
+DECLARE_INSN(ori, MATCH_ORI, MASK_ORI)
+DECLARE_INSN(rem, MATCH_REM, MASK_REM)
+DECLARE_INSN(remu, MATCH_REMU, MASK_REMU)
+DECLARE_INSN(remuw, MATCH_REMUW, MASK_REMUW)
+DECLARE_INSN(remw, MATCH_REMW, MASK_REMW)
 DECLARE_INSN(sb, MATCH_SB, MASK_SB)
-DECLARE_INSN(fmsub_d, MATCH_FMSUB_D, MASK_FMSUB_D)
+DECLARE_INSN(sbreak, MATCH_SBREAK, MASK_SBREAK)
+DECLARE_INSN(sc_d, MATCH_SC_D, MASK_SC_D)
+DECLARE_INSN(sc_w, MATCH_SC_W, MASK_SC_W)
+DECLARE_INSN(scall, MATCH_SCALL, MASK_SCALL)
 DECLARE_INSN(sd, MATCH_SD, MASK_SD)
+DECLARE_INSN(sfence_vm, MATCH_SFENCE_VM, MASK_SFENCE_VM)
+DECLARE_INSN(sh, MATCH_SH, MASK_SH)
+DECLARE_INSN(sll, MATCH_SLL, MASK_SLL)
+DECLARE_INSN(slli, MATCH_SLLI, MASK_SLLI)
+DECLARE_INSN(slliw, MATCH_SLLIW, MASK_SLLIW)
+DECLARE_INSN(sllw, MATCH_SLLW, MASK_SLLW)
+DECLARE_INSN(slt, MATCH_SLT, MASK_SLT)
+DECLARE_INSN(slti, MATCH_SLTI, MASK_SLTI)
+DECLARE_INSN(sltiu, MATCH_SLTIU, MASK_SLTIU)
+DECLARE_INSN(sltu, MATCH_SLTU, MASK_SLTU)
+DECLARE_INSN(sra, MATCH_SRA, MASK_SRA)
+DECLARE_INSN(srai, MATCH_SRAI, MASK_SRAI)
+DECLARE_INSN(sraiw, MATCH_SRAIW, MASK_SRAIW)
+DECLARE_INSN(sraw, MATCH_SRAW, MASK_SRAW)
+DECLARE_INSN(sret, MATCH_SRET, MASK_SRET)
+DECLARE_INSN(srl, MATCH_SRL, MASK_SRL)
+DECLARE_INSN(srli, MATCH_SRLI, MASK_SRLI)
+DECLARE_INSN(srliw, MATCH_SRLIW, MASK_SRLIW)
+DECLARE_INSN(srlw, MATCH_SRLW, MASK_SRLW)
+DECLARE_INSN(sub, MATCH_SUB, MASK_SUB)
+DECLARE_INSN(subw, MATCH_SUBW, MASK_SUBW)
+DECLARE_INSN(sw, MATCH_SW, MASK_SW)
+DECLARE_INSN(wfi, MATCH_WFI, MASK_WFI)
+DECLARE_INSN(xor, MATCH_XOR, MASK_XOR)
+DECLARE_INSN(xori, MATCH_XORI, MASK_XORI)
 #endif
 #ifdef DECLARE_CSR
 DECLARE_CSR(fflags, CSR_FFLAGS)
 DECLARE_CSR(frm, CSR_FRM)
 DECLARE_CSR(fcsr, CSR_FCSR)
-DECLARE_CSR(stats, CSR_STATS)
-DECLARE_CSR(sup0, CSR_SUP0)
-DECLARE_CSR(sup1, CSR_SUP1)
-DECLARE_CSR(epc, CSR_EPC)
-DECLARE_CSR(badvaddr, CSR_BADVADDR)
-DECLARE_CSR(ptbr, CSR_PTBR)
-DECLARE_CSR(asid, CSR_ASID)
-DECLARE_CSR(count, CSR_COUNT)
-DECLARE_CSR(compare, CSR_COMPARE)
-DECLARE_CSR(evec, CSR_EVEC)
-DECLARE_CSR(cause, CSR_CAUSE)
-DECLARE_CSR(status, CSR_STATUS)
-DECLARE_CSR(hartid, CSR_HARTID)
-DECLARE_CSR(impl, CSR_IMPL)
-DECLARE_CSR(fatc, CSR_FATC)
-DECLARE_CSR(send_ipi, CSR_SEND_IPI)
-DECLARE_CSR(clear_ipi, CSR_CLEAR_IPI)
-DECLARE_CSR(reset, CSR_RESET)
-DECLARE_CSR(tohost, CSR_TOHOST)
-DECLARE_CSR(fromhost, CSR_FROMHOST)
 DECLARE_CSR(cycle, CSR_CYCLE)
 DECLARE_CSR(time, CSR_TIME)
 DECLARE_CSR(instret, CSR_INSTRET)
+DECLARE_CSR(stats, CSR_STATS)
 DECLARE_CSR(uarch0, CSR_UARCH0)
 DECLARE_CSR(uarch1, CSR_UARCH1)
 DECLARE_CSR(uarch2, CSR_UARCH2)
@@ -672,38 +846,58 @@ DECLARE_CSR(uarch12, CSR_UARCH12)
 DECLARE_CSR(uarch13, CSR_UARCH13)
 DECLARE_CSR(uarch14, CSR_UARCH14)
 DECLARE_CSR(uarch15, CSR_UARCH15)
-DECLARE_CSR(counth, CSR_COUNTH)
+DECLARE_CSR(sstatus, CSR_SSTATUS)
+DECLARE_CSR(stvec, CSR_STVEC)
+DECLARE_CSR(sie, CSR_SIE)
+DECLARE_CSR(sscratch, CSR_SSCRATCH)
+DECLARE_CSR(sepc, CSR_SEPC)
+DECLARE_CSR(sip, CSR_SIP)
+DECLARE_CSR(sptbr, CSR_SPTBR)
+DECLARE_CSR(sasid, CSR_SASID)
+DECLARE_CSR(cyclew, CSR_CYCLEW)
+DECLARE_CSR(timew, CSR_TIMEW)
+DECLARE_CSR(instretw, CSR_INSTRETW)
+DECLARE_CSR(stime, CSR_STIME)
+DECLARE_CSR(scause, CSR_SCAUSE)
+DECLARE_CSR(sbadaddr, CSR_SBADADDR)
+DECLARE_CSR(stimew, CSR_STIMEW)
+DECLARE_CSR(mstatus, CSR_MSTATUS)
+DECLARE_CSR(mtvec, CSR_MTVEC)
+DECLARE_CSR(mtdeleg, CSR_MTDELEG)
+DECLARE_CSR(mie, CSR_MIE)
+DECLARE_CSR(mtimecmp, CSR_MTIMECMP)
+DECLARE_CSR(mscratch, CSR_MSCRATCH)
+DECLARE_CSR(mepc, CSR_MEPC)
+DECLARE_CSR(mcause, CSR_MCAUSE)
+DECLARE_CSR(mbadaddr, CSR_MBADADDR)
+DECLARE_CSR(mip, CSR_MIP)
+DECLARE_CSR(mtime, CSR_MTIME)
+DECLARE_CSR(mcpuid, CSR_MCPUID)
+DECLARE_CSR(mimpid, CSR_MIMPID)
+DECLARE_CSR(mhartid, CSR_MHARTID)
+DECLARE_CSR(mtohost, CSR_MTOHOST)
+DECLARE_CSR(mfromhost, CSR_MFROMHOST)
+DECLARE_CSR(mreset, CSR_MRESET)
+DECLARE_CSR(send_ipi, CSR_SEND_IPI)
 DECLARE_CSR(cycleh, CSR_CYCLEH)
 DECLARE_CSR(timeh, CSR_TIMEH)
 DECLARE_CSR(instreth, CSR_INSTRETH)
+DECLARE_CSR(cyclehw, CSR_CYCLEHW)
+DECLARE_CSR(timehw, CSR_TIMEHW)
+DECLARE_CSR(instrethw, CSR_INSTRETHW)
+DECLARE_CSR(stimeh, CSR_STIMEH)
+DECLARE_CSR(stimehw, CSR_STIMEHW)
+DECLARE_CSR(mtimecmph, CSR_MTIMECMPH)
+DECLARE_CSR(mtimeh, CSR_MTIMEH)
 #endif
 #ifdef DECLARE_CAUSE
 DECLARE_CAUSE("fflags", CAUSE_FFLAGS)
 DECLARE_CAUSE("frm", CAUSE_FRM)
 DECLARE_CAUSE("fcsr", CAUSE_FCSR)
-DECLARE_CAUSE("stats", CAUSE_STATS)
-DECLARE_CAUSE("sup0", CAUSE_SUP0)
-DECLARE_CAUSE("sup1", CAUSE_SUP1)
-DECLARE_CAUSE("epc", CAUSE_EPC)
-DECLARE_CAUSE("badvaddr", CAUSE_BADVADDR)
-DECLARE_CAUSE("ptbr", CAUSE_PTBR)
-DECLARE_CAUSE("asid", CAUSE_ASID)
-DECLARE_CAUSE("count", CAUSE_COUNT)
-DECLARE_CAUSE("compare", CAUSE_COMPARE)
-DECLARE_CAUSE("evec", CAUSE_EVEC)
-DECLARE_CAUSE("cause", CAUSE_CAUSE)
-DECLARE_CAUSE("status", CAUSE_STATUS)
-DECLARE_CAUSE("hartid", CAUSE_HARTID)
-DECLARE_CAUSE("impl", CAUSE_IMPL)
-DECLARE_CAUSE("fatc", CAUSE_FATC)
-DECLARE_CAUSE("send_ipi", CAUSE_SEND_IPI)
-DECLARE_CAUSE("clear_ipi", CAUSE_CLEAR_IPI)
-DECLARE_CAUSE("reset", CAUSE_RESET)
-DECLARE_CAUSE("tohost", CAUSE_TOHOST)
-DECLARE_CAUSE("fromhost", CAUSE_FROMHOST)
 DECLARE_CAUSE("cycle", CAUSE_CYCLE)
 DECLARE_CAUSE("time", CAUSE_TIME)
 DECLARE_CAUSE("instret", CAUSE_INSTRET)
+DECLARE_CAUSE("stats", CAUSE_STATS)
 DECLARE_CAUSE("uarch0", CAUSE_UARCH0)
 DECLARE_CAUSE("uarch1", CAUSE_UARCH1)
 DECLARE_CAUSE("uarch2", CAUSE_UARCH2)
@@ -720,8 +914,47 @@ DECLARE_CAUSE("uarch12", CAUSE_UARCH12)
 DECLARE_CAUSE("uarch13", CAUSE_UARCH13)
 DECLARE_CAUSE("uarch14", CAUSE_UARCH14)
 DECLARE_CAUSE("uarch15", CAUSE_UARCH15)
-DECLARE_CAUSE("counth", CAUSE_COUNTH)
+DECLARE_CAUSE("sstatus", CAUSE_SSTATUS)
+DECLARE_CAUSE("stvec", CAUSE_STVEC)
+DECLARE_CAUSE("sie", CAUSE_SIE)
+DECLARE_CAUSE("sscratch", CAUSE_SSCRATCH)
+DECLARE_CAUSE("sepc", CAUSE_SEPC)
+DECLARE_CAUSE("sip", CAUSE_SIP)
+DECLARE_CAUSE("sptbr", CAUSE_SPTBR)
+DECLARE_CAUSE("sasid", CAUSE_SASID)
+DECLARE_CAUSE("cyclew", CAUSE_CYCLEW)
+DECLARE_CAUSE("timew", CAUSE_TIMEW)
+DECLARE_CAUSE("instretw", CAUSE_INSTRETW)
+DECLARE_CAUSE("stime", CAUSE_STIME)
+DECLARE_CAUSE("scause", CAUSE_SCAUSE)
+DECLARE_CAUSE("sbadaddr", CAUSE_SBADADDR)
+DECLARE_CAUSE("stimew", CAUSE_STIMEW)
+DECLARE_CAUSE("mstatus", CAUSE_MSTATUS)
+DECLARE_CAUSE("mtvec", CAUSE_MTVEC)
+DECLARE_CAUSE("mtdeleg", CAUSE_MTDELEG)
+DECLARE_CAUSE("mie", CAUSE_MIE)
+DECLARE_CAUSE("mtimecmp", CAUSE_MTIMECMP)
+DECLARE_CAUSE("mscratch", CAUSE_MSCRATCH)
+DECLARE_CAUSE("mepc", CAUSE_MEPC)
+DECLARE_CAUSE("mcause", CAUSE_MCAUSE)
+DECLARE_CAUSE("mbadaddr", CAUSE_MBADADDR)
+DECLARE_CAUSE("mip", CAUSE_MIP)
+DECLARE_CAUSE("mtime", CAUSE_MTIME)
+DECLARE_CAUSE("mcpuid", CAUSE_MCPUID)
+DECLARE_CAUSE("mimpid", CAUSE_MIMPID)
+DECLARE_CAUSE("mhartid", CAUSE_MHARTID)
+DECLARE_CAUSE("mtohost", CAUSE_MTOHOST)
+DECLARE_CAUSE("mfromhost", CAUSE_MFROMHOST)
+DECLARE_CAUSE("mreset", CAUSE_MRESET)
+DECLARE_CAUSE("send_ipi", CAUSE_SEND_IPI)
 DECLARE_CAUSE("cycleh", CAUSE_CYCLEH)
 DECLARE_CAUSE("timeh", CAUSE_TIMEH)
 DECLARE_CAUSE("instreth", CAUSE_INSTRETH)
+DECLARE_CAUSE("cyclehw", CAUSE_CYCLEHW)
+DECLARE_CAUSE("timehw", CAUSE_TIMEHW)
+DECLARE_CAUSE("instrethw", CAUSE_INSTRETHW)
+DECLARE_CAUSE("stimeh", CAUSE_STIMEH)
+DECLARE_CAUSE("stimehw", CAUSE_STIMEHW)
+DECLARE_CAUSE("mtimecmph", CAUSE_MTIMECMPH)
+DECLARE_CAUSE("mtimeh", CAUSE_MTIMEH)
 #endif
diff --git a/src/arch/riscv/include/atomic.h b/src/arch/riscv/include/atomic.h
new file mode 100644
index 0000000000..8d7295d930
--- /dev/null
+++ b/src/arch/riscv/include/atomic.h
@@ -0,0 +1,73 @@
+// See LICENSE for license details.
+
+#ifndef _RISCV_ATOMIC_H
+#define _RISCV_ATOMIC_H
+
+//#include "config.h"
+#include <arch/encoding.h>
+
+#define disable_irqsave() clear_csr(sstatus, SSTATUS_IE)
+#define enable_irqrestore(flags) set_csr(sstatus, (flags) & SSTATUS_IE)
+
+typedef struct { int lock; } spinlock_t;
+#define SPINLOCK_INIT {0}
+
+#define mb() __sync_synchronize()
+#define atomic_set(ptr, val) (*(volatile typeof(*(ptr)) *)(ptr) = val)
+#define atomic_read(ptr) (*(volatile typeof(*(ptr)) *)(ptr))
+
+#ifdef PK_ENABLE_ATOMICS
+# define atomic_add(ptr, inc) __sync_fetch_and_add(ptr, inc)
+# define atomic_swap(ptr, swp) __sync_lock_test_and_set(ptr, swp)
+# define atomic_cas(ptr, cmp, swp) __sync_val_compare_and_swap(ptr, cmp, swp)
+#else
+# define atomic_add(ptr, inc) ({ \
+  long flags = disable_irqsave(); \
+  typeof(ptr) res = *(volatile typeof(ptr))(ptr); \
+  *(volatile typeof(ptr))(ptr) = res + (inc); \
+  enable_irqrestore(flags); \
+  res; })
+# define atomic_swap(ptr, swp) ({ \
+  long flags = disable_irqsave(); \
+  typeof(*ptr) res = *(volatile typeof(ptr))(ptr); \
+  *(volatile typeof(ptr))(ptr) = (swp); \
+  enable_irqrestore(flags); \
+  res; })
+# define atomic_cas(ptr, cmp, swp) ({ \
+  long flags = disable_irqsave(); \
+  typeof(ptr) res = *(volatile typeof(ptr))(ptr); \
+  if (res == (cmp)) *(volatile typeof(ptr))(ptr) = (swp); \
+  enable_irqrestore(flags); \
+  res; })
+#endif
+
+static inline void spinlock_lock(spinlock_t* lock)
+{
+  do
+  {
+    while (atomic_read(&lock->lock))
+      ;
+  } while (atomic_swap(&lock->lock, -1));
+  mb();
+}
+
+static inline void spinlock_unlock(spinlock_t* lock)
+{
+  mb();
+  atomic_set(&lock->lock,0);
+}
+
+static inline long spinlock_lock_irqsave(spinlock_t* lock)
+{
+  long flags = disable_irqsave();
+  spinlock_lock(lock);
+  return flags;
+}
+
+static inline void spinlock_unlock_irqrestore(spinlock_t* lock, long flags)
+{
+  spinlock_unlock(lock);
+  enable_irqrestore(flags);
+}
+
+#endif
diff --git a/src/arch/riscv/include/spike_util.h b/src/arch/riscv/include/spike_util.h
new file mode 100644
index 0000000000..a9d14cccf1
--- /dev/null
+++ b/src/arch/riscv/include/spike_util.h
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 The ChromiumOS Authors
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef _SPIKE_UTIL_H
+#define _SPIKE_UTIL_H
+
+#include <stdint.h>
+//#include <string.h>
+//#include <errno.h>
+#include <arch/encoding.h>
+#include <atomic.h>
+
+#define LOG_REGBYTES 3
+#define REGBYTES (1 << LOG_REGBYTES)
+#define STORE    sd
+#define HLS_SIZE 64
+#define MENTRY_FRAME_SIZE HLS_SIZE
+
+#define TOHOST_CMD(dev, cmd, payload) \
+    (((uint64_t)(dev) << 56) | ((uint64_t)(cmd) << 48) | (uint64_t)(payload))
+
+#define FROMHOST_DEV(fromhost_value) ((uint64_t)(fromhost_value) >> 56)
+#define FROMHOST_CMD(fromhost_value) ((uint64_t)(fromhost_value) << 8 >> 56)
+#define FROMHOST_DATA(fromhost_value) ((uint64_t)(fromhost_value) << 16 >> 16)
+
+typedef struct {
+  unsigned long dev;
+  unsigned long cmd;
+  unsigned long data;
+  unsigned long sbi_private_data;
+} sbi_device_message;
+
+
+typedef struct {
+  sbi_device_message* device_request_queue_head;
+  unsigned long device_request_queue_size;
+  sbi_device_message* device_response_queue_head;
+  sbi_device_message* device_response_queue_tail;
+
+  int hart_id;
+  int ipi_pending;
+} hls_t;
+
+#define MACHINE_STACK_TOP() ({ \
+  register uintptr_t sp asm ("sp"); \
+  (void*)((sp + RISCV_PGSIZE) & -RISCV_PGSIZE); })
+
+// hart-local storage, at top of stack
+#define HLS() ((hls_t*)(MACHINE_STACK_TOP() - HLS_SIZE))
+
+#define MACHINE_STACK_SIZE RISCV_PGSIZE
+
+uintptr_t htif_interrupt(uintptr_t mcause, uintptr_t* regs);
+uintptr_t mcall_console_putchar(uint8_t ch);
+void testPrint(void);
+
+#endif
diff --git a/src/mainboard/emulation/spike-riscv/Kconfig b/src/mainboard/emulation/spike-riscv/Kconfig
new file mode 100644
index 0000000000..7c7fb346a4
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/Kconfig
@@ -0,0 +1,61 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## This program 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.
+
+# To execute, do:
+# qemu-system-arm -M vexpress-a9 -m 1024M -nographic -kernel build/coreboot.rom
+
+if BOARD_EMULATION_SPIKE_UCB_RISCV
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select SOC_UCB_RISCV
+	select BOARD_ROMSIZE_KB_4096
+	select ARCH_BOOTBLOCK_RISCV
+	select HAVE_UART_SPECIAL
+
+config MAINBOARD_DIR
+	string
+	default emulation/spike-riscv
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "SPIKE RISCV"
+
+config MAX_CPUS
+	int
+	default 1
+
+config MAINBOARD_VENDOR
+	string
+	default "UCB"
+
+config DRAM_SIZE_MB
+	int
+	default 32768
+
+# Memory map for qemu riscv
+#
+# 0x0000_0000: jump instruction (by qemu)
+# 0x0002_0000: bootblock (entry of kernel / firmware)
+# 0x0003_0000: romstage, assume up to 128KB in size.
+# 0x0007_ff00: stack pointer
+# 0x0010_0000: CBFS header
+# 0x0011_0000: CBFS data
+# 0x0100_0000: reserved for ramstage
+
+config RAMTOP
+	hex
+	default 0x1000000
+
+endif #  BOARD_EMULATION_SPIKE_UCB_RISCV
diff --git a/src/mainboard/emulation/spike-riscv/Kconfig.name b/src/mainboard/emulation/spike-riscv/Kconfig.name
new file mode 100644
index 0000000000..36dd509eb0
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_EMULATION_SPIKE_UCB_RISCV
+	bool "SPIKE ucb riscv"
diff --git a/src/mainboard/emulation/spike-riscv/Makefile.inc b/src/mainboard/emulation/spike-riscv/Makefile.inc
new file mode 100644
index 0000000000..dff4758173
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/Makefile.inc
@@ -0,0 +1,26 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013 Google Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## This program 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.
+
+bootblock-y += bootblock.c
+bootblock-y += uart.c
+bootblock-y += spike_util.c
+romstage-y += romstage.c
+romstage-y += uart.c
+romstage-y += spike_util.c
+ramstage-y += uart.c
+ramstage-y += spike_util.c
+
+bootblock-y += memlayout.ld
+romstage-y += memlayout.ld
+ramstage-y += memlayout.ld
diff --git a/src/mainboard/emulation/spike-riscv/board_info.txt b/src/mainboard/emulation/spike-riscv/board_info.txt
new file mode 100644
index 0000000000..811e8e0840
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/board_info.txt
@@ -0,0 +1,2 @@
+Board name: QEMU RISCV
+Category: emulation
diff --git a/src/mainboard/emulation/spike-riscv/bootblock.c b/src/mainboard/emulation/spike-riscv/bootblock.c
new file mode 100644
index 0000000000..56f2eca863
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/bootblock.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <arch/exception.h>
+#include <bootblock_common.h>
+#include <console/console.h>
+#include <program_loading.h>
+
+// the qemu part of all this is very, very non-hardware like.
+// so it gets its own bootblock.
+void main(void)
+{
+	if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) {
+		console_init();
+		exception_init();
+	}
+	run_romstage();
+}
diff --git a/src/mainboard/emulation/spike-riscv/devicetree.cb b/src/mainboard/emulation/spike-riscv/devicetree.cb
new file mode 100644
index 0000000000..e3ce08829e
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/devicetree.cb
@@ -0,0 +1,20 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google, Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## This program 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.
+
+chip soc/ucb/riscv
+	device cpu_cluster 0 on end
+	chip drivers/generic/generic # I2C0 controller
+		device i2c 6 on end # Fake component for testing
+	end
+end
diff --git a/src/mainboard/emulation/spike-riscv/mainboard.c b/src/mainboard/emulation/spike-riscv/mainboard.c
new file mode 100644
index 0000000000..111e9b185b
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/mainboard.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program 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.
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <cbmem.h>
+
+static void mainboard_enable(device_t dev)
+{
+
+	if (!dev) {
+		printk(BIOS_EMERG, "No dev0; die\n");
+		while (1);
+	}
+
+	ram_resource(dev, 0, 2048, 32768);
+	cbmem_recovery(0);
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};
diff --git a/src/mainboard/emulation/spike-riscv/memlayout.ld b/src/mainboard/emulation/spike-riscv/memlayout.ld
new file mode 100644
index 0000000000..8801f3520b
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/memlayout.ld
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 Google Inc.
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <memlayout.h>
+
+#include <arch/header.ld>
+
+SECTIONS
+{
+	DRAM_START(0x0)
+	BOOTBLOCK(0x0, 64K)
+	ROMSTAGE(0x20000, 128K)
+	STACK(0x40000, 0x3ff00)
+	PRERAM_CBMEM_CONSOLE(0x80000, 8K)
+	RAMSTAGE(0x100000, 16M)
+}
diff --git a/src/mainboard/emulation/spike-riscv/romstage.c b/src/mainboard/emulation/spike-riscv/romstage.c
new file mode 100644
index 0000000000..b6314ccd1c
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/romstage.c
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program 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.
+ */
+
+#include <console/console.h>
+#include <program_loading.h>
+
+void main(void)
+{
+	console_init();
+	run_ramstage();
+}
diff --git a/src/mainboard/emulation/spike-riscv/spike_util.c b/src/mainboard/emulation/spike-riscv/spike_util.c
new file mode 100644
index 0000000000..b34ff4a0d0
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/spike_util.c
@@ -0,0 +1,82 @@
+#include <spike_util.h>
+
+uintptr_t htif_interrupt(uintptr_t mcause, uintptr_t* regs) {
+        uintptr_t fromhost = swap_csr(mfromhost, 0);
+        if (!fromhost)
+        return 0;
+
+        uintptr_t dev = FROMHOST_DEV(fromhost);
+        uintptr_t cmd = FROMHOST_CMD(fromhost);
+        uintptr_t data = FROMHOST_DATA(fromhost);
+
+        sbi_device_message* m = HLS()->device_request_queue_head;
+        sbi_device_message* prev = 0x0;
+        unsigned long i, n;
+        for (i = 0, n = HLS()->device_request_queue_size; i < n; i++) {
+                /*
+                if (!supervisor_paddr_valid(m, sizeof(*m))
+                && EXTRACT_FIELD(read_csr(mstatus), MSTATUS_PRV1) != PRV_M)
+                panic("htif: page fault");
+                */
+
+                sbi_device_message* next = (void*)m->sbi_private_data;
+                if (m->dev == dev && m->cmd == cmd) {
+                        m->data = data;
+
+                        // dequeue from request queue
+                        if (prev)
+                        prev->sbi_private_data = (uintptr_t)next;
+                        else
+                        HLS()->device_request_queue_head = next;
+                        HLS()->device_request_queue_size = n-1;
+                        m->sbi_private_data = 0;
+
+                        // enqueue to response queue
+                        if (HLS()->device_response_queue_tail)
+                        {
+                                HLS()->device_response_queue_tail->sbi_private_data = (uintptr_t)m;
+                        }
+                        else
+                        {
+                                HLS()->device_response_queue_head = m;
+                        }
+                        HLS()->device_response_queue_tail = m;
+
+                        // signal software interrupt
+                        set_csr(mip, MIP_SSIP);
+                        return 0;
+                }
+
+                prev = m;
+                m = (void*)atomic_read(&m->sbi_private_data);
+        }
+        //HLT();
+        return 0;
+        //panic("htif: no record");
+}
+
+uintptr_t mcall_console_putchar(uint8_t ch)
+{
+        while (swap_csr(mtohost, TOHOST_CMD(1, 1, ch)) != 0);
+        while (1) {
+                uintptr_t fromhost = read_csr(mfromhost);
+                if (FROMHOST_DEV(fromhost) != 1 || FROMHOST_CMD(fromhost) != 1) {
+                if (fromhost)
+                htif_interrupt(0, 0);
+                continue;
+        }
+        write_csr(mfromhost, 0);
+        break;
+        }
+        return 0;
+}
+
+void testPrint(void) {
+        /* Print a test command to check Spike console output */
+        mcall_console_putchar('h');
+        mcall_console_putchar('e');
+        mcall_console_putchar('l');
+        mcall_console_putchar('l');
+        mcall_console_putchar('o');
+        mcall_console_putchar('\n');
+}
diff --git a/src/mainboard/emulation/spike-riscv/uart.c b/src/mainboard/emulation/spike-riscv/uart.c
new file mode 100644
index 0000000000..961ddc56d4
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/uart.c
@@ -0,0 +1,61 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 Google Inc.
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <types.h>
+#include <console/uart.h>
+#include <arch/io.h>
+#include <boot/coreboot_tables.h>
+#include <spike_util.h>
+
+static uint8_t *buf = (void *)0x3f8;
+uintptr_t uart_platform_base(int idx)
+{
+	return (uintptr_t) buf;
+}
+
+void uart_init(int idx)
+{
+}
+
+unsigned char uart_rx_byte(int idx)
+{
+	return *buf; // this does not work on spike, requires more implementation details
+}
+
+void uart_tx_byte(int idx, unsigned char data)
+{
+	mcall_console_putchar(data);
+}
+
+void uart_tx_flush(int idx)
+{
+}
+
+#ifndef __PRE_RAM__
+void uart_fill_lb(void *data)
+{
+	struct lb_serial serial;
+	serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
+	serial.baseaddr = 0x3f8;
+	serial.baud = 115200;
+	serial.regwidth = 1;
+	lb_add_serial(&serial, data);
+        lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
+}
+#endif