#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)