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Fixed synthetic instructions for DIV and XCHG to handle Byte wide operations, and also in case of XCHG memory, also fixed assembly generation for IN/OUT operations and all string instructions MOVS etc.

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This commit is contained in:
Artur K
2012-03-04 00:30:53 +01:00
parent 32d1b71e79
commit d7ddc86d76
11 changed files with 405 additions and 361 deletions
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2
include/Procedure.h
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@@ -152,6 +152,8 @@ protected:
void propLongReg(int loc_ident_idx, const ID &pLocId);
void propLongStk(int i, const ID &pLocId);
void propLongGlb(int i, const ID &pLocId);
void processTargetIcode(iICODE picode, int &numHlIcodes, iICODE ticode, bool isLong);
void processHliCall1(COND_EXPR *exp, iICODE picode);
int findBackwarLongDefs(int loc_ident_idx, const ID &pLocId, iICODE iter);
int findForwardLongUses(int loc_ident_idx, const ID &pLocId, iICODE beg);

2
include/dcc.h
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@@ -163,7 +163,7 @@ void adjustActArgType (COND_EXPR *, hlType, Function *);
std::string walkCondExpr (const COND_EXPR *exp, Function * pProc, int *);
int hlTypeSize (const COND_EXPR *, Function *);
hlType expType (const COND_EXPR *, Function *);
bool insertSubTreeReg(COND_EXPR *, COND_EXPR **, uint8_t, LOCAL_ID *);
bool insertSubTreeReg(COND_EXPR *&, COND_EXPR *, uint8_t, LOCAL_ID *);
bool insertSubTreeLongReg (COND_EXPR *, COND_EXPR **, int);

26
include/icode.h
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@@ -19,6 +19,9 @@ struct BB;
struct Function;
struct STKFRAME;
struct CIcodeRec;
struct ICODE;
typedef std::list<ICODE>::iterator iICODE;
typedef std::list<ICODE>::reverse_iterator riICODE;
/* uint8_t and uint16_t registers */
static const char *const byteReg[9] = {"al", "cl", "dl", "bl",
@@ -35,8 +38,7 @@ struct DU
};
/* Definition-use chain for level 1 (within a basic block) */
#define MAX_REGS_DEF 2 /* 2 regs def'd for long-reg vars */
//#define MAX_USES 5
#define MAX_REGS_DEF 4 /* 2 regs def'd for long-reg vars */
struct COND_EXPR;
@@ -91,8 +93,10 @@ struct ExpType : public HlTypeSupport
struct HLTYPE
{
hlIcode opcode; /* hlIcode opcode */
protected:
public:
ExpType exp; /* for HLI_JCOND, HLI_RET, HLI_PUSH, HLI_POP*/
hlIcode opcode; /* hlIcode opcode */
AssignType asgn;
CallType call;
HlTypeSupport *get()
@@ -102,6 +106,7 @@ struct HLTYPE
case HLI_ASSIGN: return &asgn;
case HLI_RET:
case HLI_POP:
case HLI_JCOND:
case HLI_PUSH: return &exp;
case HLI_CALL: return &call;
default:
@@ -178,7 +183,14 @@ public:
}
bool testFlags(uint32_t x) const { return (flg & x)!=0;}
void setFlags(uint32_t flag) {flg |= flag;}
void clrFlags(uint32_t flag) {flg &= ~flag;}
void clrFlags(uint32_t flag)
{
if(opcode==iMOD)
{
assert(false);
}
flg &= ~flag;
}
uint32_t getFlag() const {return flg;}
llIcode getOpcode() const { return opcode; }
@@ -273,8 +285,8 @@ public:
};
int numRegsDef; /* # registers defined by this inst */
uint8_t regi[3]; /* registers defined by this inst */
Use idx[3];
uint8_t regi[MAX_REGS_DEF+1]; /* registers defined by this inst */
Use idx[MAX_REGS_DEF+1];
//int idx[MAX_REGS_DEF][MAX_USES]; /* inst that uses this def */
bool used(int regIdx)
{
@@ -348,5 +360,3 @@ public:
iterator labelSrch(uint32_t target);
ICODE * GetIcode(int ip);
};
typedef CIcodeRec::iterator iICODE;
typedef CIcodeRec::reverse_iterator riICODE;

2
include/types.h
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@@ -34,7 +34,7 @@ typedef unsigned char boolT; /* 8 bits */
/* Macro reads a LH word from the image regardless of host convention */
/* Returns a 16 bit quantity, e.g. C000 is read into an Int as C000 */
//#define LH(p) ((int16)((byte *)(p))[0] + ((int16)((byte *)(p))[1] << 8))
#define LH(p) ((uint16_t)((uint8_t *)(p))[0] + ((uint16_t)((uint8_t *)(p))[1] << 8))
#define LH(p) ((word)((byte *)(p))[0] + ((word)((byte *)(p))[1] << 8))
/* Macro reads a LH word from the image regardless of host convention */
/* Returns a signed quantity, e.g. C000 is read into an Int as FFFFC000 */