Very first bit towards a Mips/PSX disassembler

10 files changed, 52 insertions, 6 deletions

diff --git a/Cpu/Makefile b/Cpu/Makefile
new file mode 100644
index 0000000..87835d6
--- /dev/null
+++ b/Cpu/Makefile
@@ -0,0 +1,16 @@
+TARGET = Cpu.a
+
+SRCS = \
+cpu.cpp \
+cpu-mips.cpp \
+
+SPATH =
+
+CPPFLAGS = -I. -I../Database -I../Database/internals
+
+include ../Makefile.cfg
+
+$(TARGET): $(OBJS)
+	$(AR) $@ $^
+
+-include $(DEPS)
diff --git a/Cpu/cpu-mips.cpp b/Cpu/cpu-mips.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Cpu/cpu-mips.cpp
diff --git a/Cpu/cpu.cpp b/Cpu/cpu.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Cpu/cpu.cpp
diff --git a/Database/database-types.h b/Database/database-types.h
index 49db9b8..8ea61e6 100644
--- a/Database/database-types.h
+++ b/Database/database-types.h
@@ -40,6 +40,7 @@ typedef union {
 
 static inline Uint32 SEGID(absolute_ptr ptr) { return ptr.segment_id; }
 static inline Uint32 SEGOFFSET(absolute_ptr ptr) { return ptr.ptr; }
+static inline absolute_ptr ABSPTR(Uint32 id, Uint32 ptr) { absolute_ptr r; r.segment_id = id; r.ptr = ptr; return r; }
 
 /** A function description.
  */
diff --git a/Database/database.h b/Database/database.h
index be46598..222573d 100644
--- a/Database/database.h
+++ b/Database/database.h
@@ -22,6 +22,12 @@ class Database : public Base {
         return 0;
     }
     Uint32 GetNextSegId() { return currentId++; }
+    Segment * CreateSegment(Cpu * cpu, Uint64 cpu_base, absolute_ptr origin, Uint32 size, Uint32 extra_size = 0, const Byte * data = 0) {
+        DatabaseCell * r = new DatabaseCell(this, cpu, cpu_base, origin, size, extra_size, data);
+        return r->getSegment();
+    }
+    void Serialize(Handle * out);
+    void Deserialize(Handle *in);
   private:
     DatabaseCell * start, * end;
     Uint32 currentId;
diff --git a/Database/internals/database-internal.cpp b/Database/internals/database-internal.cpp
index e564c01..ce54f44 100644
--- a/Database/internals/database-internal.cpp
+++ b/Database/internals/database-internal.cpp
@@ -1,14 +1,16 @@
 #include "database-internal.h"
 #include "database.h"
 
-DatabaseCell::DatabaseCell(Cpu * cpu, Uint64 cpu_base, absolute_ptr origin, Uint32 size, Uint32 extra_size, DatabaseCell * prev, Database * parent) : cpu(cpu), next(0), prev(prev), parent(parent) {
-    prev->next = this;
+DatabaseCell::DatabaseCell(Database * parent, Cpu * cpu, Uint64 cpu_base, absolute_ptr origin, Uint32 size, Uint32 extra_size, const Byte * data) : cpu(cpu), next(0), parent(parent) {
+    prev = parent->getEnd();
+    if (prev)
+        prev->next = this;
     parent->setEnd(this);
     if (origin.raw_ptr) {
         Segment * origin_seg = parent->getSegment(SEGID(origin));
         segment = new Segment(size, cpu_base, parent->GetNextSegId(), extra_size, origin_seg->getPristineMemory() + SEGOFFSET(origin));
     } else {
-        segment = new Segment(size, cpu_base, parent->GetNextSegId(), extra_size);
+        segment = new Segment(size, cpu_base, parent->GetNextSegId(), extra_size, data);
     }
 }
 
diff --git a/Database/internals/database-internal.h b/Database/internals/database-internal.h
index 173eb62..4616d8c 100644
--- a/Database/internals/database-internal.h
+++ b/Database/internals/database-internal.h
@@ -17,9 +17,9 @@ class DatabaseCell : public Base {
   public:
       /** The constructor of a DatabaseCell. Note that if you specify the origin parameter, 
        * it'll create a sub-segment based on the first one. Note also that this doesn't support
-       * the patching system, yet.
+       * the patching system, yet. data and origin are mutually exclusive.
        */
-      DatabaseCell(Cpu * cpu, Uint64 cpu_base, absolute_ptr origin, Uint32 size, Uint32 extra_size, DatabaseCell * prev, Database * parent);
+      DatabaseCell(Database * parent, Cpu * cpu, Uint64 cpu_base, absolute_ptr origin, Uint32 size, Uint32 extra_size = 0, const Byte * data = 0);
       ~DatabaseCell();
     Uint32 getId() { return segment->getId(); }
     void LoadMemory(Handle * src) { segment->LoadMemory(src); }
diff --git a/Database/internals/database-segment.h b/Database/internals/database-segment.h
index f01ac38..dc4d157 100644
--- a/Database/internals/database-segment.h
+++ b/Database/internals/database-segment.h
@@ -44,6 +44,7 @@ class Segment : public Base {
      * @return the memory block of the segment.
      */
     const Byte * getPristineMemory() { return plainmemory; }
+    const memory_tags_t * getMemoryTags() { return tags; }
     void Patch(Uint32 ptr, Byte val);
     void Restore(Uint32 ptr);
     bool IsPatched(Uint32 ptr);
diff --git a/Loader/loader-psyq.cpp b/Loader/loader-psyq.cpp
new file mode 100644
index 0000000..d6d8876
--- /dev/null
+++ b/Loader/loader-psyq.cpp
@@ -0,0 +1,20 @@
+#include "database.h"
+
+union psyq_header_t {
+    struct {
+        Uint8 id[8];
+        Uint32 text, data, pc0, gp0, t_addr, t_size;
+        Uint32 d_addr, d_size, b_addr, b_size, s_addr, s_size;
+        Uint32 sp, fp, gp, ra, s0;
+    };
+    Uint8 raw[0x800];
+};
+
+class loader_psyq : public Base {
+  public:
+    static void load(Handle * input, Database * database) {
+        psyq_header_t head;
+        
+        input->read(&head, sizeof(head));
+    }
+};
diff --git a/Makefile b/Makefile
index 52af23e..b7e3e1e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-DIRS=externals Utils Engine Lua Loader Database
+DIRS=externals Database Cpu Engine Lua Loader Utils
 
 all: $(DIRS)