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-rw-r--r--riscv/encoding.h18
-rw-r--r--riscv/processor.cc4
2 files changed, 22 insertions, 0 deletions
diff --git a/riscv/encoding.h b/riscv/encoding.h
index 032626e..b784322 100644
--- a/riscv/encoding.h
+++ b/riscv/encoding.h
@@ -100,6 +100,16 @@
#define EXT_IO_BASE 0x40000000
#define DRAM_BASE 0x80000000
+// breakpoint control fields
+#define BPCONTROL_X 0x00000001
+#define BPCONTROL_W 0x00000002
+#define BPCONTROL_R 0x00000004
+#define BPCONTROL_U 0x00000008
+#define BPCONTROL_S 0x00000010
+#define BPCONTROL_H 0x00000020
+#define BPCONTROL_M 0x00000040
+#define BPCONTROL_MATCHCOND 0x00000180
+
// page table entry (PTE) fields
#define PTE_V 0x001 // Valid
#define PTE_TYPE 0x01E // Type
@@ -697,6 +707,10 @@
#define CSR_MSCYCLE_DELTA 0x704
#define CSR_MSTIME_DELTA 0x705
#define CSR_MSINSTRET_DELTA 0x706
+#define CSR_TDRSELECT 0x7a0
+#define CSR_TDRDATA1 0x7a1
+#define CSR_TDRDATA2 0x7a2
+#define CSR_TDRDATA3 0x7a3
#define CSR_DCSR 0x7b0
#define CSR_DPC 0x7b1
#define CSR_DSCRATCH 0x7b2
@@ -1003,6 +1017,10 @@ DECLARE_CSR(muinstret_delta, CSR_MUINSTRET_DELTA)
DECLARE_CSR(mscycle_delta, CSR_MSCYCLE_DELTA)
DECLARE_CSR(mstime_delta, CSR_MSTIME_DELTA)
DECLARE_CSR(msinstret_delta, CSR_MSINSTRET_DELTA)
+DECLARE_CSR(tdrselect, CSR_TDRSELECT)
+DECLARE_CSR(tdrdata1, CSR_TDRDATA1)
+DECLARE_CSR(tdrdata2, CSR_TDRDATA2)
+DECLARE_CSR(tdrdata3, CSR_TDRDATA3)
DECLARE_CSR(dcsr, CSR_DCSR)
DECLARE_CSR(dpc, CSR_DPC)
DECLARE_CSR(dscratch, CSR_DSCRATCH)
diff --git a/riscv/processor.cc b/riscv/processor.cc
index b120ddb..ed9a83b 100644
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@@ -482,6 +482,10 @@ reg_t processor_t::get_csr(int which)
case CSR_MTVEC: return state.mtvec;
case CSR_MEDELEG: return state.medeleg;
case CSR_MIDELEG: return state.mideleg;
+ case CSR_TDRSELECT: return 0;
+ case CSR_TDRDATA1: return 0;
+ case CSR_TDRDATA2: return 0;
+ case CSR_TDRDATA3: return 0;
case CSR_DCSR:
{
uint32_t v = 0;