adding GetData32Be, GetData32Le for getting 4bytes from big or lite endian

start implment Ld for ppc.

svn path=/trunk/; revision=25440

rosapps/devutils/cputointel/From/PPC/PPC.h

@@ -14,6 +14,14 @@ CPU_INT PPCBrain(    CPU_BYTE *cpu_buffer,
 CPU_INT PPC_Addx(FILE *out, CPU_BYTE * cpu_buffer, CPU_UNINT cpu_pos, CPU_UNINT cpu_size, CPU_UNINT BaseAddress, CPU_UNINT cpuarch, CPU_INT mode);
 
 
+CPU_INT PPC_Ld( FILE *out, CPU_BYTE * cpu_buffer, CPU_UNINT cpu_pos,
+                   CPU_UNINT cpu_size, CPU_UNINT BaseAddress, CPU_UNINT cpuarch,
+                   CPU_INT mode);
+
 /* Export comment thing see m68k for example 
  * in dummy we do not show it, for it is diffent for each cpu
  */
+
+extern CPU_BYTE PPC_D[32];
+extern CPU_BYTE PPC_A[32];
+extern CPU_BYTE PPC_ds[32];

rosapps/devutils/cputointel/From/PPC/PPCBrain.c

@@ -58,7 +58,7 @@ CPU_INT PPCBrain(    CPU_BYTE *cpu_buffer,
     {
         cpu_oldpos = cpu_pos;
 
-        cpuint = cpu_buffer[cpu_pos];
+        cpuint = GetData32Le(&cpu_buffer[cpu_pos]);
 
         /* Add */
         if ((cpuint - (cpuint & GetMaskByte32(cpuPPCInit_Addx))) == ConvertBitToByte32(cpuPPCInit_Addx))
@@ -71,6 +71,17 @@ CPU_INT PPCBrain(    CPU_BYTE *cpu_buffer,
                  cpu_pos += retsize;
         }
 
+         /* Ld aslo known as Li */
+        if ((cpuint - (cpuint & GetMaskByte32(cpuPPCInit_Ld))) == ConvertBitToByte32(cpuPPCInit_Ld))
+        {
+            retsize = PPC_Ld( outfp, cpu_buffer, cpu_pos, cpu_size,
+                                 BaseAddress, cpuarch, mode);
+            if (retsize<0)
+                 retcode = 1;
+            else
+                 cpu_pos += retsize;
+        }
+    
         /* Found all Opcode and breakout and return no error found */
         if (cpu_pos >=cpu_size)
         {

rosapps/devutils/cputointel/From/PPC/PPCBrain.h

@@ -10,3 +10,18 @@
  */
 CPU_BYTE cpuPPCInit_Addx[32] = {2,0,1,0,1,0,0,0,0,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,0};
 
+
+CPU_BYTE cpuPPCInit_Ld[32]  = {0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,0,1,1,1,0,0,0};
+CPU_BYTE cpuPPCInit_Ldu[32] = {1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,0,1,1,1,0,0,0};
+
+
+/* mask */
+CPU_BYTE PPC_D[32]     = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0};
+CPU_BYTE PPC_A[32]     = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0};
+CPU_BYTE PPC_ds[32]    = {0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+
+/* bit index
+                          3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
+                          1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+*/
+

rosapps/devutils/cputointel/From/PPC/PPCopcode.c

@@ -39,3 +39,31 @@ CPU_INT PPC_Addx( FILE *out, CPU_BYTE * cpu_buffer, CPU_UNINT cpu_pos,
     printf(";Add unimplement\n");
     return -1;
 }
+ //                                                          stb
+                                                             
+ // li  %r3, 0  : op    00          00         60           38
+ // li = ld
+//                   0000 0000   0000 0000  0100 0000    0011 1000
+CPU_INT PPC_Ld( FILE *out, CPU_BYTE * cpu_buffer, CPU_UNINT cpu_pos,
+                   CPU_UNINT cpu_size, CPU_UNINT BaseAddress, CPU_UNINT cpuarch,
+                   CPU_INT mode)
+{
+    CPU_UNINT formA;
+    CPU_UNINT formD;
+    CPU_UNINT formDS;
+    CPU_UNINT opcode;
+
+    opcode = GetData32Le(cpu_buffer);
+    formA = (opcode & ConvertBitToByte(PPC_A)) >> 5;
+    formD = (opcode & ConvertBitToByte(PPC_D)) >> 10;
+    formDS = (opcode & ConvertBitToByte(PPC_ds)) >> 15;
+
+    if (mode==0)
+    {
+        fprintf(out,"Line_0x%8x :\n",BaseAddress + cpu_pos);
+    }
+
+    printf(";not full implement \n");
+    return 4;
+}
+

rosapps/devutils/cputointel/From/dummycpu/DummyBrain.c

@@ -59,7 +59,13 @@ CPU_INT DummyBrain(  CPU_BYTE *cpu_buffer,
     {
         cpu_oldpos = cpu_pos;
 
-        cpuint = cpu_buffer[cpu_pos];
+        /* use the GetData32Be or GetData32Le
+           to read from the memory the
+           Le is for small endian and the
+           Be is for big endian
+           the 32 is how many bits we should read 
+         */
+        cpuint = GetData32Be(&cpu_buffer[cpu_pos]);
     
         /* Add */
         if ((cpuint - (cpuint & GetMaskByte(cpuDummyInit_Add))) == ConvertBitToByte(cpuDummyInit_Add))

rosapps/devutils/cputointel/misc.c

@@ -97,6 +97,37 @@ CPU_UNINT GetMaskByte32(CPU_BYTE *bit)
 
 
 
+CPU_UNINT GetData32Le(CPU_BYTE *cpu_buffer)
+{
+    CPU_UNINT cpuint;
+    CPU_UNINT split1;
+    CPU_UNINT split2;
+    CPU_UNINT split3;
+    CPU_UNINT split4;
+
+    cpuint = *((CPU_UNINT*) &cpu_buffer[0]);
+
+    split1 = cpu_buffer[0];
+    split2 = cpu_buffer[1];
+    split3 = cpu_buffer[2];
+    split4 = cpu_buffer[3];
+
+
+    cpuint = split4+(split3 <<8 )+(split2 <<16 )+(split1 <<24 );
+
+    return cpuint;
+}
+
+CPU_UNINT GetData32Be(CPU_BYTE *cpu_buffer)
+{
+    CPU_UNINT cpuint;
+
+    cpuint = *((CPU_UNINT*) &cpu_buffer[0]);
+
+    return cpuint;
+}
+
+
 // add no carry
 
 

rosapps/devutils/cputointel/misc.h

@@ -20,3 +20,6 @@ CPU_UNINT GetMaskByte(CPU_BYTE *bit);
 CPU_UNINT ConvertBitToByte32(CPU_BYTE *bit);
 CPU_UNINT GetMaskByte32(CPU_BYTE *bit);
 
+CPU_UNINT GetData32Le(CPU_BYTE *cpu_buffer);
+CPU_UNINT GetData32Be(CPU_BYTE *cpu_buffer);
+