#define SSTATUS32_SD 0x80000000
#define SSTATUS64_SD 0x8000000000000000
+#define DCSR_PRV (3<<14)
+#define DCSR_CAUSE 7
+
+#define DCSR_CAUSE_NONE 0
+#define DCSR_CAUSE_SWBP 1
+#define DCSR_CAUSE_HWBP 2
+#define DCSR_CAUSE_DEBUGINT 3
+#define DCSR_CAUSE_STEP 4
+#define DCSR_CAUSE_HALT 5
+
#define MIP_SSIP (1 << IRQ_S_SOFT)
#define MIP_HSIP (1 << IRQ_H_SOFT)
#define MIP_MSIP (1 << IRQ_M_SOFT)
#define MIP_STIP (1 << IRQ_S_TIMER)
#define MIP_HTIP (1 << IRQ_H_TIMER)
#define MIP_MTIP (1 << IRQ_M_TIMER)
+#define MIP_SEIP (1 << IRQ_S_EXT)
+#define MIP_HEIP (1 << IRQ_H_EXT)
+#define MIP_MEIP (1 << IRQ_M_EXT)
#define SIP_SSIP MIP_SSIP
#define SIP_STIP MIP_STIP
#define IRQ_S_TIMER 5
#define IRQ_H_TIMER 6
#define IRQ_M_TIMER 7
-#define IRQ_S_DEV 9
-#define IRQ_H_DEV 10
-#define IRQ_M_DEV 11
+#define IRQ_S_EXT 9
+#define IRQ_H_EXT 10
+#define IRQ_M_EXT 11
#define IRQ_COP 12
#define IRQ_HOST 13
-#define DEFAULT_RSTVEC 0x0
-#define DEFAULT_NMIVEC 0x4
-#define DEFAULT_MTVEC 0x8
+#define DEFAULT_RSTVEC 0x00001000
+#define DEFAULT_NMIVEC 0x00001004
+#define DEFAULT_MTVEC 0x00001010
+#define CONFIG_STRING_ADDR 0x0000100C
+#define EXT_IO_BASE 0x40000000
+#define DRAM_BASE 0x80000000
// page table entry (PTE) fields
#define PTE_V 0x001 // Valid
#define MASK_HRET 0xffffffff
#define MATCH_MRET 0x30200073
#define MASK_MRET 0xffffffff
+#define MATCH_DRET 0x79200073
+#define MASK_DRET 0xffffffff
#define MATCH_SFENCE_VM 0x10400073
#define MASK_SFENCE_VM 0xfff07fff
#define MATCH_WFI 0x10500073
#define CSR_MIDELEG 0x303
#define CSR_MIE 0x304
#define CSR_MTVEC 0x305
-#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_MIPI 0x345
#define CSR_MUCOUNTEREN 0x310
#define CSR_MSCOUNTEREN 0x311
#define CSR_MUCYCLE_DELTA 0x700
#define CSR_MSCYCLE_DELTA 0x704
#define CSR_MSTIME_DELTA 0x705
#define CSR_MSINSTRET_DELTA 0x706
+#define CSR_DCSR 0x790
+#define CSR_DPC 0x791
+#define CSR_DSCRATCH 0x792
#define CSR_MCYCLE 0xf00
#define CSR_MTIME 0xf01
#define CSR_MINSTRET 0xf02
#define CSR_MVENDORID 0xf11
#define CSR_MARCHID 0xf12
#define CSR_MIMPID 0xf13
-#define CSR_MCFGADDR 0xf14
-#define CSR_MHARTID 0xf15
-#define CSR_MTOHOST 0x7c0
-#define CSR_MFROMHOST 0x7c1
+#define CSR_MHARTID 0xf14
#define CSR_MRESET 0x7c2
#define CSR_CYCLEH 0xc80
#define CSR_TIMEH 0xc81
#define CSR_INSTRETH 0xc82
-#define CSR_MTIMECMPH 0x361
#define CSR_MUCYCLE_DELTAH 0x780
#define CSR_MUTIME_DELTAH 0x781
#define CSR_MUINSTRET_DELTAH 0x782
DECLARE_INSN(sret, MATCH_SRET, MASK_SRET)
DECLARE_INSN(hret, MATCH_HRET, MASK_HRET)
DECLARE_INSN(mret, MATCH_MRET, MASK_MRET)
+DECLARE_INSN(dret, MATCH_DRET, MASK_DRET)
DECLARE_INSN(sfence_vm, MATCH_SFENCE_VM, MASK_SFENCE_VM)
DECLARE_INSN(wfi, MATCH_WFI, MASK_WFI)
DECLARE_INSN(csrrw, MATCH_CSRRW, MASK_CSRRW)
DECLARE_CSR(mideleg, CSR_MIDELEG)
DECLARE_CSR(mie, CSR_MIE)
DECLARE_CSR(mtvec, CSR_MTVEC)
-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(mipi, CSR_MIPI)
DECLARE_CSR(mucounteren, CSR_MUCOUNTEREN)
DECLARE_CSR(mscounteren, CSR_MSCOUNTEREN)
DECLARE_CSR(mucycle_delta, CSR_MUCYCLE_DELTA)
DECLARE_CSR(mscycle_delta, CSR_MSCYCLE_DELTA)
DECLARE_CSR(mstime_delta, CSR_MSTIME_DELTA)
DECLARE_CSR(msinstret_delta, CSR_MSINSTRET_DELTA)
+DECLARE_CSR(dcsr, CSR_DCSR)
+DECLARE_CSR(dpc, CSR_DPC)
+DECLARE_CSR(dscratch, CSR_DSCRATCH)
DECLARE_CSR(mcycle, CSR_MCYCLE)
DECLARE_CSR(mtime, CSR_MTIME)
DECLARE_CSR(minstret, CSR_MINSTRET)
DECLARE_CSR(mvendorid, CSR_MVENDORID)
DECLARE_CSR(marchid, CSR_MARCHID)
DECLARE_CSR(mimpid, CSR_MIMPID)
-DECLARE_CSR(mcfgaddr, CSR_MCFGADDR)
DECLARE_CSR(mhartid, CSR_MHARTID)
-DECLARE_CSR(mtohost, CSR_MTOHOST)
-DECLARE_CSR(mfromhost, CSR_MFROMHOST)
DECLARE_CSR(mreset, CSR_MRESET)
DECLARE_CSR(cycleh, CSR_CYCLEH)
DECLARE_CSR(timeh, CSR_TIMEH)
DECLARE_CSR(instreth, CSR_INSTRETH)
-DECLARE_CSR(mtimecmph, CSR_MTIMECMPH)
DECLARE_CSR(mucycle_deltah, CSR_MUCYCLE_DELTAH)
DECLARE_CSR(mutime_deltah, CSR_MUTIME_DELTAH)
DECLARE_CSR(muinstret_deltah, CSR_MUINSTRET_DELTAH)