int RebuildCppInst(OpcodeInfo *theOp)
{
int ip = theOp->rip;
char str[256];
#ifdef CPP_DEBUG
str[0] = 0;
DisassembleFromSource(ip, str);
RebuildEmit("\t\t\t\t\t\t//%s\n", str);
#endif
#ifdef CPP_SHOW_LINES
{
int line = ArrayGet(&SLD_Line_Array, ip);
int file = ArrayGet(&SLD_File_Array, ip);
if(line!=0) {
RebuildEmit("\n // %s:%d\n", GetFileNumString(file), line);
RebuildEmit(" // %s\n", GetFileLine(file, line));
}
}
#endif
switch (theOp->op)
{
case _PUSH:
RebuildEmit(" //push %s,%d\n",Cpp_reg[theOp->rd], theOp->rs);
if (REGUSED(funcprop.reg_used, REG_sp))
{
RebuildEmit(" sp -= %d;\n",theOp->rs*4);
}
return 1;
case _POP:
RebuildEmit(" //pop %s,%d\n",Cpp_reg[theOp->rd], theOp->rs);
if (REGUSED(funcprop.reg_used, REG_sp))
{
RebuildEmit(" sp += %d;\n",theOp->rs*4);
}
return 1;
case _CASE:
CppDecodeSwitch(theOp);
break;
case _CALLI:
CppDecodeCall(theOp);
break;
case _SYSCALL:
CppDecodeSysCall(theOp);
break;
case _CALL:
CppDecodeCallReg(theOp);
break;
case _LDI:
RebuildEmit(" %s = 0x%x;", Cpp_reg[theOp->rd], theOp->imm);
break;
case _LDR:
{
if (IsRegConst(theOp->rs))
RebuildEmit(" %s = 0x%x;", Cpp_reg[theOp->rd], ConstRegValue(theOp->rs));
else
RebuildEmit(" %s = %s;", Cpp_reg[theOp->rd], Cpp_reg[theOp->rs]);
}
break;
// Arithmatic
case _ADD:
CppEmitArith(theOp,"+", 0);
break;
case _ADDI:
CppEmitArith(theOp,"+", 1);
break;
case _MUL:
CppEmitArith(theOp,"*", 0);
break;
case _MULI:
CppEmitArith(theOp,"*", 1);
break;
case _SUB:
CppEmitArith(theOp,"-", 0);
break;
case _SUBI:
CppEmitArith(theOp,"-", 1);
break;
case _AND:
CppEmitArith(theOp,"&", 0);
break;
case _ANDI:
CppEmitArith(theOp,"&", 1);
break;
case _OR:
CppEmitArith(theOp,"|", 0);
break;
case _ORI:
CppEmitArith(theOp,"|", 1);
break;
case _XOR:
CppEmitArith(theOp,"^", 0);
break;
case _XORI:
CppEmitArith(theOp,"^", 1);
break;
case _DIVU:
CppEmitDivu(theOp, 0);
break;
case _DIVUI:
CppEmitDivu(theOp, 1);
break;
case _DIV:
CppEmitArith(theOp,"/", 0);
break;
case _DIVI:
CppEmitArith(theOp,"/", 1);
break;
// Shifts
case _SLL:
CppEmitShift(theOp,"<<", 0, 0);
break;
case _SLLI:
CppEmitShift(theOp,"<<", 1, 0);
break;
case _SRA:
CppEmitShift(theOp,">>", 0, 0);
break;
case _SRAI:
CppEmitShift(theOp,">>", 1, 0);
break;
case _SRL:
CppEmitShift(theOp,">>", 0, 1); // Unsigned
break;
case _SRLI:
CppEmitShift(theOp,">>", 1, 1); // Unsigned
break;
case _NOT:
RebuildEmit(" %s = ~%s;", Cpp_reg[theOp->rd], Cpp_reg[theOp->rs]);
break;
case _NEG:
RebuildEmit(" %s = -%s;", Cpp_reg[theOp->rd], Cpp_reg[theOp->rs]);
break;
case _RET:
{
if (ThisFunctionExit == 0) // Don't output a return jump on last instruction
{
RebuildEmit(" goto label_0; // return");
ReturnCount++;
}
}
break;
// Conditional jumps
case _JC_EQ:
CppEmitJumpCond(theOp, "==", 0);
break;
case _JC_NE:
CppEmitJumpCond(theOp, "!=", 0);
break;
case _JC_GE:
CppEmitJumpCond(theOp, ">=", 0);
break;
case _JC_GEU:
CppEmitJumpCond(theOp, ">=", 1);
break;
case _JC_GT:
CppEmitJumpCond(theOp, ">", 0);
break;
case _JC_GTU:
CppEmitJumpCond(theOp, ">", 1);
break;
case _JC_LE:
CppEmitJumpCond(theOp, "<=", 0);
break;
case _JC_LEU:
CppEmitJumpCond(theOp, "<=", 1);
break;
case _JC_LT:
CppEmitJumpCond(theOp, "<", 0);
break;
case _JC_LTU:
CppEmitJumpCond(theOp, "<", 1);
break;
case _JPI:
CppDecodeLabel(theOp, " goto label_%d;");
break;
// Memory instructions
case _LDW:
Cpp_LoadMem(theOp, "RINT");
break;
case _LDH:
Cpp_LoadMem(theOp, "RSHORT");
break;
case _LDB:
Cpp_LoadMem(theOp, "RBYTE");
break;
case _STW:
Cpp_StoreMem(theOp, "WINT");
break;
case _STH:
Cpp_StoreMem(theOp, "WSHORT");
break;
case _STB:
Cpp_StoreMem(theOp, "WBYTE");
break;
case _XB:
RebuildEmit(" %s = (int)((char) %s);", Cpp_reg[theOp->rd], Cpp_reg[theOp->rs]);
break;
case _XH:
RebuildEmit(" %s = (int)((short) %s);", Cpp_reg[theOp->rd], Cpp_reg[theOp->rs]);
break;
default:
str[0] = 0;
DisassembleFromSource(ip, str);
ErrorOnIP(Error_Fatal, ip, "Missing instruction in Cpp rebuilder '%s'\n", str);
}
// ArraySet(&SLD_Line_Array, CodeIP, line);
// ArraySet(&SLD_File_Array, CodeIP, This_SLD_File);
// RebuildEmit("\n");
RebuildEmit("\n");
#ifdef LOG_REGISTER_STATE_CHANGES
if (funcprop.reg_used)
{
/*
int n;
for (n=0;n<32;n++)
{
if (reg_used & (1 << n))
{
RebuildEmit("if(last_%s != %s) { LOG_REGISTER(%s); last_%s = %s;}\n", Cpp_reg[n], Cpp_reg[n], Cpp_reg[n], Cpp_reg[n], Cpp_reg[n]);
}
}
RebuildEmit(";\n\n");
*/
RebuildEmit("\tLOG_REGISTER_STATE_CHANGES(0x%x)\n", funcprop.reg_used);
}
#endif
return 1;
}
int RebuildJavaInst(OpcodeInfo *theOp)
{
int ip = theOp->rip;
char str[256];
#ifdef JRDEBUG
str[0] = 0;
DisassembleFromSource(ip, str);
RebuildEmit("\t\t\t\t\t\t//%s\n", str);
#endif
switch (theOp->op)
{
case _PUSH:
RebuildEmit(" //push %s,%d\n",java_reg[theOp->rd], theOp->rs);
if (function_registers_used & (1 << REG_sp))
{
RebuildEmit(" " SP_STR " -= %d;\n",theOp->rs*4);
}
return 1;
case _POP:
RebuildEmit(" //pop %s,%d\n",java_reg[theOp->rd], theOp->rs);
if (function_registers_used & (1 << REG_sp))
{
RebuildEmit(" " SP_STR " += %d;\n",theOp->rs*4);
}
return 1;
case _CASE:
JavaDecodeSwitch(theOp);
break;
case _CALLI:
JavaDecodeCall(theOp);
break;
case _SYSCALL:
JavaDecodeSysCall(theOp);
break;
case _CALL:
JavaDecodeCallReg(theOp);
break;
case _LDI:
RebuildEmit(" %s = 0x%x;", java_reg[theOp->rd], theOp->imm);
SetRegInit(theOp->rd);
break;
case _LDR:
{
SetRegInit(theOp->rd);
if (IsRegConst(theOp->rs))
RebuildEmit(" %s = 0x%x;", java_reg[theOp->rd], ConstRegValue(theOp->rs));
else
RebuildEmit(" %s = %s;", java_reg[theOp->rd], java_reg[theOp->rs]);
}
break;
// Arithmatic
case _ADD:
JavaEmitArith(theOp,"+", 0);
break;
case _ADDI:
JavaEmitArith(theOp,"+", 1);
break;
case _MUL:
JavaEmitArith(theOp,"*", 0);
break;
case _MULI:
JavaEmitArith(theOp,"*", 1);
break;
case _SUB:
JavaEmitArith(theOp,"-", 0);
break;
case _SUBI:
JavaEmitArith(theOp,"-", 1);
break;
case _AND:
JavaEmitArith(theOp,"&", 0);
break;
case _ANDI:
JavaEmitArith(theOp,"&", 1);
break;
case _OR:
JavaEmitArith(theOp,"|", 0);
break;
case _ORI:
JavaEmitArith(theOp,"|", 1);
break;
case _XOR:
JavaEmitArith(theOp,"^", 0);
break;
case _XORI:
JavaEmitArith(theOp,"^", 1);
break;
case _DIVU:
JavaEmitDivu(theOp, 0);
break;
case _DIVUI:
JavaEmitDivu(theOp, 1);
break;
case _DIV:
JavaEmitArith(theOp,"/", 0);
break;
case _DIVI:
JavaEmitArith(theOp,"/", 1);
break;
// Shifts
case _SLL:
JavaEmitArith(theOp,"<<", 0);
break;
case _SLLI:
JavaEmitArith(theOp,"<<", 1);
break;
case _SRA:
JavaEmitArith(theOp,">>", 0);
break;
case _SRAI:
JavaEmitArith(theOp,">>", 1);
break;
case _SRL:
JavaEmitArith(theOp,">>>", 0);
break;
case _SRLI:
JavaEmitArith(theOp,">>>", 1);
break;
case _NOT:
RebuildEmit(" %s = ~%s;", java_reg[theOp->rd], java_reg[theOp->rs]);
SetRegInit(theOp->rd);
break;
case _NEG:
RebuildEmit(" %s = -%s;", java_reg[theOp->rd], java_reg[theOp->rs]);
SetRegInit(theOp->rd);
break;
case _RET:
{
if (ThisFunctionExit == 0) // Don't output a return jump on last instruction
{
RebuildEmit(" ms.goto_0(); // return");
ReturnCount++;
}
}
break;
// Conditional jumps
case _JC_EQ:
JavaEmitJumpCond(theOp, "==", 0);
break;
case _JC_NE:
JavaEmitJumpCond(theOp, "!=", 0);
break;
case _JC_GE:
JavaEmitJumpCond(theOp, ">=", 0);
break;
case _JC_GEU:
JavaEmitJumpCond(theOp, ">=", 1);
break;
case _JC_GT:
JavaEmitJumpCond(theOp, ">", 0);
break;
case _JC_GTU:
JavaEmitJumpCond(theOp, ">", 1);
break;
case _JC_LE:
JavaEmitJumpCond(theOp, "<=", 0);
break;
case _JC_LEU:
JavaEmitJumpCond(theOp, "<=", 1);
break;
case _JC_LT:
JavaEmitJumpCond(theOp, "<", 0);
break;
case _JC_LTU:
JavaEmitJumpCond(theOp, "<", 1);
break;
case _JPI:
JavaDecodeLabel(theOp, " ms.goto_%d();");
break;
#ifdef NO_ELIM
case _JPR:
// JavaDecodeLabel(theOp, " ms.goto_%d();");
break;
#endif
// Memory instructions
case _LDW:
Java_LoadMem(theOp, "RINT");
break;
case _LDH:
Java_LoadMem(theOp, "RSHORT");
break;
case _LDB:
Java_LoadMem(theOp, "RBYTE");
break;
case _STW:
Java_StoreMem(theOp, "WINT");
break;
case _STH:
Java_StoreMem(theOp, "WSHORT");
break;
case _STB:
Java_StoreMem(theOp, "WBYTE");
break;
case _XB:
RebuildEmit(" %s = (int)((byte) %s);", java_reg[theOp->rd], java_reg[theOp->rs]);
break;
case _XH:
RebuildEmit(" %s = (int)((short) %s);", java_reg[theOp->rd], java_reg[theOp->rs]);
break;
default:
str[0] = 0;
DisassembleFromSource(ip, str);
ErrorOnIP(Error_Fatal, ip, "Missing instruction in Java rebuilder '%s'\n", str);
}
RebuildEmit("\n");
return 1;
}
