[Skyeye-developer] SF.net SVN: skyeye: [289] skyeye-v1/trunk/arch/mips/common/decoder.c

[Michael.Kang]

Revision: 289
          http://skyeye.svn.sourceforge.net/skyeye/?rev=289&view=rev
Author:   kangsh
Date:     2007-08-08 21:32:18 -0700 (Wed, 08 Aug 2007)

Log Message:
-----------
Fix a bug caused by wrong defination of date type. The bug caused
sign extend can not work correctly.

Modified Paths:
--------------
    skyeye-v1/trunk/arch/mips/common/decoder.c

Modified: skyeye-v1/trunk/arch/mips/common/decoder.c
===================================================================
--- skyeye-v1/trunk/arch/mips/common/decoder.c  2007-08-04 08:00:06
UTC (rev 288)
+++ skyeye-v1/trunk/arch/mips/common/decoder.c  2007-08-09 04:32:18
UTC (rev 289)
@@ -397,7 +397,7 @@
                                {
                                        // Trap If Not Equal
                                        if( mstate->gpr[rs(instr)] !=
mstate->gpr[rt(instr)])
-                                               fprintf(stderr,"trap
happed in %s.\n", __FUNCTION__);
+                                               fprintf(stderr,"trap
happened in %s at 0x%x.\n", __FUNCTION__, mstate->pc);
                                        //process_reserved_instruction(mstate);

                                        return nothing_special;
@@ -835,10 +835,12 @@
                                sync();
                        VA va = sign_extend_UInt32(offset(instr), 16)
+ mstate->gpr[base(instr)];
                        PA pa = translate_vaddr(mstate, va,
data_load); //Shi yang 2006-08-10, defined in tlb.c
-                       UInt8 x;
+                       UInt32 x;
                        UInt32 y = 0;
                        load(mstate, va, pa, &y, 1);
+
                        x = sign_extend_UInt32(y & (0xff), 8); //Shi
yang 2006-08-10, Sign extend
+
                        mstate->gpr[rt(instr)] = x;

                        return nothing_special;
@@ -853,7 +855,7 @@
                        if (bit(va, 0)) //Check alignment
                                process_address_error(data_load, va);
                        PA pa = translate_vaddr(mstate,va, data_load);
//Shi yang 2006-08-10
-                       UInt16 x;
+                       UInt32 x;
                        UInt32 y = 0;
                        load(mstate, va, pa, &y, 2);
                        x = sign_extend_UInt32(y & (0xffff), 16);
//Shi yang 2006-08-10, Sign extend


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