WIP. Doesn't work.

[riscv-isa-sim.git] / riscv / debug_module.h

diff --git a/riscv/debug_module.h b/riscv/debug_module.h
index f6f2009b7e3890240d6d779729da22349bc1c34c..82c449ef6a70a699af5438db8a9adc83e353a356 100644 (file)
--- a/riscv/debug_module.h
+++ b/riscv/debug_module.h
@@ -18,6 +18,7 @@ typedef struct {
 } dmcontrol_t;
 
 typedef struct {
+  bool impebreak;
   bool allnonexistant;
   bool anynonexistant;
   bool allunavail;
@@ -55,10 +56,25 @@ typedef struct {
   unsigned autoexecdata;
 } abstractauto_t;
 
+typedef struct {
+  unsigned version;
+  bool readonaddr;
+  unsigned sbaccess;
+  bool autoincrement;
+  bool readondata;
+  unsigned error;
+  unsigned asize;
+  bool access128;
+  bool access64;
+  bool access32;
+  bool access16;
+  bool access8;
+} sbcs_t;
+
 class debug_module_t : public abstract_device_t
 {
   public:
-    debug_module_t(sim_t *sim, unsigned progbufsize);
+    debug_module_t(sim_t *sim, unsigned progbufsize, unsigned max_bus_master_bits);
     ~debug_module_t();
 
     void add_device(bus_t *bus);
@@ -80,12 +96,15 @@ class debug_module_t : public abstract_device_t
     // Actual size of the program buffer, which is 1 word bigger than we let on
     // to implement the implicit ebreak at the end.
     unsigned program_buffer_bytes;
+    unsigned max_bus_master_bits ;
     static const unsigned debug_data_start = 0x380;
     unsigned debug_progbuf_start;
 
-    static const unsigned debug_abstract_size = 2;
+    static const unsigned debug_abstract_size = 5;
     unsigned debug_abstract_start;
 
+    static const unsigned hartsellen = 10;
+
     sim_t *sim;
 
     uint8_t debug_rom_whereto[4];
@@ -100,12 +119,21 @@ class debug_module_t : public abstract_device_t
     void write32(uint8_t *rom, unsigned int index, uint32_t value);
     uint32_t read32(uint8_t *rom, unsigned int index);
 
+    void sb_autoincrement();
+    void sb_read();
+    void sb_write();
+    unsigned sb_access_bits();
+
     dmcontrol_t dmcontrol;
     dmstatus_t dmstatus;
     abstractcs_t abstractcs;
     abstractauto_t abstractauto;
     uint32_t command;
 
+    sbcs_t sbcs;
+    uint32_t sbaddress[4];
+    uint32_t sbdata[4];
+
     processor_t *current_proc() const;
     void reset();
     bool perform_abstract_command();