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hll.c
3189 lines (3038 loc) · 115 KB
/
hll.c
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/****************************************************************************
*
* This code is Public Domain.
*
* ========================================================================
*
* Description: implements hll directives:
* .IF, .WHILE, .REPEAT, .ELSE, .ELSEIF, .ENDIF, .FOR, .SWITCH, .CASE, .DEFAULT,
* .ENDW, .UNTIL, .UNTILCXZ, .BREAK, .CONTINUE, .ENFOR, .ENDSWITCH.
* also handles C operators:
* ==, !=, >=, <=, >, <, &&, ||, &, !,
* and flags:
* ZERO?, CARRY?, SIGN?, PARITY?, OVERFLOW?,
* LESS?, GREATER?, ABOVE?, EQUAL?, BELOW?
*
****************************************************************************/
#include <ctype.h>
#include <string.h>
#include "globals.h"
#include "memalloc.h"
#include "parser.h"
#include "equate.h"
#include "label.h"
#include "expreval.h"
#include "types.h"
#include "hll.h"
#include "segment.h"
#include "listing.h"
#include "lqueue.h"
#include "myassert.h"
#include "trmem.h"
#include "fastpass.h"
#include "atofloat.h"
#if defined(WINDOWSDDK)
#if defined(_WIN32)
typedef _W64 int INT_PTR, *PINT_PTR;
typedef _W64 unsigned int UINT_PTR, *PUINT_PTR;
typedef _W64 long LONG_PTR, *PLONG_PTR;
typedef _W64 unsigned long ULONG_PTR, *PULONG_PTR;
#define __int3264 __int32
#else
typedef __int64 INT_PTR, *PINT_PTR;
typedef unsigned __int64 UINT_PTR, *PUINT_PTR;
typedef __int64 LONG_PTR, *PLONG_PTR;
typedef unsigned __int64 ULONG_PTR, *PULONG_PTR;
#define __int3264 __int64
#endif
#else
#include <inttypes.h>
#if defined(_WIN32)
typedef _W64 int INT_PTR, *PINT_PTR;
typedef _W64 unsigned int UINT_PTR, *PUINT_PTR;
typedef _W64 long LONG_PTR, *PLONG_PTR;
typedef _W64 unsigned long ULONG_PTR, *PULONG_PTR;
#define __int3264 __int32
#else
typedef int64_t INT_PTR, *PINT_PTR;
typedef uint64_t UINT_PTR, *PUINT_PTR;
typedef int64_t LONG_PTR, *PLONG_PTR;
typedef uint64_t ULONG_PTR, *PULONG_PTR;
#define __int3264 int64_t
typedef int64_t __int64;
#endif
#endif
int Tokenize(char *, unsigned int, struct asm_tok[], unsigned int);
void myatoi128(const char *src, uint_64 dst[], int base, int size);
#define LABELSIZE 8
#define LABELSGLOBAL 0 /* make the generated labels global */
#define JMPPREFIX /* define spaces before "jmp" or "loop" */
#define LABELFMT "@C%04X"
/* v2.10: static variables moved to ModuleInfo */
#define HllStack ModuleInfo.g.HllStack
#define HllFree ModuleInfo.g.HllFree
#if LABELSGLOBAL
#define LABELQUAL "::"
#else
#define LABELQUAL ":"
#endif
#ifdef DEBUG_OUT
#define EOLCHAR '^' /* this allows better displays */
#define EOLSTR "^"
#else
#define EOLCHAR '\n' /* line termination char in generated source */
#define EOLSTR "\n"
#endif
/* values for struct hll_item.cmd */
enum hll_cmd {
HLL_IF,
HLL_WHILE,
HLL_REPEAT,
HLL_BREAK, /* .IF behind .BREAK or .CONTINUE */
HLL_FOR,
HLL_SWITCH,
};
/* index values for struct hll_item.labels[] */
enum hll_label_index {
LTEST, /* test (loop) condition */
LEXIT, /* block exit */
LSTART, /* loop start */
LSKIP, /* skip counters */
LCONT, /* for .CONTINUE in .for */
LDEF, /* jump table for SWITCH */
LDATA1, /* jump table for SWITCH */
LDATA2, /* jump table for SWITCH */
LTOP, /* jump table for SWITCH */
LJUMP, /* jump table for SWITCH */
};
/* values for struct hll_item.flags */
enum hll_flags {
HLLF_ELSEOCCURED = 0x01,
HLLF_DEFAULTOCCURED = 0x02,
HLLF_WHILE = 0x04,
};
/* item for .IF, .WHILE, .REPEAT, .FOR, .SWITCH ... */
struct hll_item {
struct hll_item *next;
uint_32 labels[10]; /* labels for LTEST, LEXIT, LSTART, LSKIP, LCONT, LDEF LDATA1, LDATA2, LTOP, LJUMP */
char *condlines; /* .WHILE-blocks only: lines to add after 'test' label */
char *counterlines; /* pointer to allocated memory for counters */
uint_32 cmcnt; /* comma counter */
enum hll_cmd cmd; /* start cmd (IF, WHILE, REPEAT) */
enum hll_flags flags; /* v2.08: added */
/* All of bellow vars are related to the SWITCH block */
int_32 casecnt; /* case counter */
char csize; /* SWITCH decision flag */
char cflag; /* SWITCH decision flag */
int maxcase;
int mincase;
int delta;
int maxalloccasen;
int multicase;
int *pcases;
uint_16 *plabels;
uint_16 savedlab;
bool breakoccured; /* condition */
#if AMD64_SUPPORT
int_64 maxcase64;
int_64 mincase64;
uint_64 delta64;
uint_64 *pcases64;
#endif
};
/* v2.08: struct added */
struct hll_opnd {
char *lastjmp;
uint_32 lasttruelabel; /* v2.08: new member */
};
static ret_code GetExpression(struct hll_item *hll, int *i, struct asm_tok[], int ilabel, bool is_true, char *buffer, struct hll_opnd *);
/* c binary ops.
* Order of items COP_EQ - COP_LE and COP_ZERO - COP_OVERFLOW
* must not be changed.
*/
enum c_bop {
COP_NONE,
COP_EQ, /* == */
COP_NE, /* != */
COP_GT, /* > */
COP_LT, /* < */
COP_GE, /* >= */
COP_LE, /* <= */
COP_AND, /* && */
COP_OR, /* || */
COP_ANDB, /* & */
COP_NEG, /* ! */
COP_ZERO, /* ZERO? not really a valid C operator */
COP_CARRY, /* CARRY? not really a valid C operator */
COP_SIGN, /* SIGN? not really a valid C operator */
COP_PARITY, /* PARITY? not really a valid C operator */
COP_OVERFLOW, /* OVERFLOW? not really a valid C operator */
//added by habran
COP_LESS, /* Used for signed integers SIGN=OVERFLOW */
COP_GREATER, /* Used for signed integers SIGNED ZERO OR CARRY */
COP_ABOVE, /* Used for unsigned integers ZERO OR CARRY */
COP_EQUAL,
COP_BELOW /* Used for unsigned integers */
};
/* items in table below must match order COP_ZERO - COP_OVERFLOW */
static const char flaginstr[] = { 'z', 'c', 's', 'p', 'o', 'l', 'g', 'a', 'e', 'b' };
/* items in tables below must match order COP_EQ - COP_LE */
static const char unsigned_cjmptype[] = { 'z', 'z', 'a', 'b', 'b', 'a' };
static const char signed_cjmptype[] = { 'z', 'z', 'g', 'l', 'l', 'g' };
static const char neg_cjmptype[] = { 0, 1, 0, 0, 1, 1 };
/* in Masm, there's a nesting level limit of 20. In Uasm, there's
* currently no limit.
*/
#ifdef __WATCOMC__
static _inline char HexDigit( char x )
#elif defined(_MSC_VER)
static _inline char HexDigit( char x )
#else
static char HexDigit( char x )
#endif
{
x &= 0xF;
return((x > 9) ? (x - 10 + 'A') : (x + '0'));
}
#ifdef DEBUG_OUT
static unsigned evallvl;
static unsigned cntAlloc; /* # of allocated hll_items */
static unsigned cntReused; /* # of reused hll_items */
static unsigned cntCond; /* # of allocated 'condlines'-buffer in .WHILE-blocks */
static unsigned cntCondBytes; /* total size of allocated 'condlines'-buffers */
#endif
uint_32 GetHllLabel(void)
/********************************/
{
return (++ModuleInfo.hll_label);
}
/* get a C binary operator from the token stream.
* there is a problem with the '<' because it is a "string delimiter"
* which Tokenize() usually is to remove.
* There has been a hack implemented in Tokenize() so that it won't touch the
* '<' if .IF, .ELSEIF, .WHILE, .UNTIL, .UNTILCXZ or .BREAK/.CONTINUE has been
* detected.
*/
#define CHARS_EQ '=' + ( '=' << 8 )
#define CHARS_NE '!' + ( '=' << 8 )
#define CHARS_GE '>' + ( '=' << 8 )
#define CHARS_LE '<' + ( '=' << 8 )
#define CHARS_AND '&' + ( '&' << 8 )
#define CHARS_OR '|' + ( '|' << 8 )
static enum c_bop GetCOp(struct asm_tok *item)
/**********************************************/
{
int size;
enum c_bop rc;
char *p = item->string_ptr;
size = (item->token == T_STRING ? item->stringlen : 0);
if (size == 2) {
switch (*(uint_16 *)p) {
case CHARS_EQ: rc = COP_EQ; break;
case CHARS_NE: rc = COP_NE; break;
case CHARS_GE: rc = COP_GE; break;
case CHARS_LE: rc = COP_LE; break;
case CHARS_AND: rc = COP_AND; break;
case CHARS_OR: rc = COP_OR; break;
default: return(COP_NONE);
}
}
else if (size == 1) {
switch (*p) {
case '>': rc = COP_GT; break;
case '<': rc = COP_LT; break;
case '&': rc = COP_ANDB; break;
case '!': rc = COP_NEG; break;
default: return(COP_NONE);
}
}
else {
if (item->token != T_ID)
return(COP_NONE);
/* a valid "flag" string must end with a question mark */
size = (int)strlen(p);
if (*(p + size - 1) != '?')
return(COP_NONE);
if (size == 5 && (0 == _memicmp(p, "ZERO", 4)))
rc = COP_ZERO;
else if (size == 6 && (0 == _memicmp(p, "CARRY", 5)))
rc = COP_CARRY;
else if (size == 5 && (0 == _memicmp(p, "SIGN", 4)))
rc = COP_SIGN;
else if (size == 7 && (0 == _memicmp(p, "PARITY", 6)))
rc = COP_PARITY;
else if (size == 9 && (0 == _memicmp(p, "OVERFLOW", 8)))
rc = COP_OVERFLOW;
//added by habran
else if (size == 5 && (0 == _memicmp(p, "LESS", 4)))
rc = COP_LESS;
else if (size == 8 && (0 == _memicmp(p, "GREATER", 7)))
rc = COP_GREATER;
else if (size == 6 && (0 == _memicmp(p, "ABOVE", 5)))
rc = COP_ABOVE;
else if (size == 6 && (0 == _memicmp(p, "EQUAL", 5)))
rc = COP_EQUAL;
else if (size == 6 && (0 == _memicmp(p, "BELOW", 5)))
rc = COP_BELOW;
else
return(COP_NONE);
}
return(rc);
}
/* handle 32 bit hex here for compatibility with x86 */
uint_32 hex2dec(const char *src)
/*******************************************************/
{
uint_32 a;
uint_32 b = 0;
for (;;)
{
a = *src;
if (!a) break;
b = (b << 4);
if (a >= '0' && a <= '9') a -= '0';
else {
a |= 0x20;
if (a >= 'a' && a <= 'f') a -= 'a' - 10;
}
b = b + a;
src++;
}
return (b);
}
static void bubblesort(struct hll_item *hll, uint_16 *lbl, int *src, int n) {
/*******************************************************************************************************************************/
int i;
int j;
int temp1;
uint_16 temp2;
for (i = 0; i < n; ++i)
{
for (j = i + 1; j < n; ++j)
{
if (src[i] > src[j])
{
temp1 = src[i];
src[i] = src[j];
src[j] = temp1;
temp2 = lbl[i];
lbl[i] = lbl[j];
lbl[j] = temp2;
}
}
}
hll->mincase = src[0];
hll->maxcase = src[n - 1];
hll->delta = hll->maxcase - hll->mincase;
}
#if AMD64_SUPPORT
static void bubblesort64(struct hll_item *hll, uint_16 *lbl, int_64 *src, int n) {
/*******************************************************************************************************************************/
int i;
int j;
int_64 temp1;
uint_16 temp2;
for (i = 0; i < n; ++i)
{
for (j = i + 1; j < n; ++j)
{
if (src[i] > src[j])
{
temp1 = src[i];
src[i] = src[j];
src[j] = temp1;
temp2 = lbl[i];
lbl[i] = lbl[j];
lbl[j] = temp2;
}
}
}
hll->mincase64 = src[0];
hll->maxcase64 = src[n - 1];
hll->delta64 = hll->maxcase64 - hll->mincase64;
}
#endif
/* render an instruction */
static char *RenderInstr(char *dst, const char *instr, int start1, int end1, int start2, int end2, struct asm_tok tokenarray[])
/*******************************************************************************************************************************/
{
#if AMD64_SUPPORT
__int64 i;
#else
int i;
#endif
#ifdef DEBUG_OUT
char *old = dst;
#endif
i = (int)strlen(instr);
/* copy the instruction */
memcpy(dst, instr, i);
dst += i;
/* copy the first operand's tokens */
*dst++ = ' ';
i = tokenarray[end1].tokpos - tokenarray[start1].tokpos;
memcpy(dst, tokenarray[start1].tokpos, i);
dst += i;
if (start2 != EMPTY) {
*dst++ = ',';
/* copy the second operand's tokens */
*dst++ = ' ';
i = tokenarray[end2].tokpos - tokenarray[start2].tokpos;
memcpy(dst, tokenarray[start2].tokpos, i);
dst += i;
}
else if (end2 != EMPTY) {
dst += sprintf(dst, ", %d", end2);
}
*dst++ = EOLCHAR;
*dst = NULLC;
DebugMsg1(("%u RenderInstr(%s)=>%s<\n", evallvl, instr, old));
return(dst);
}
/* render a Simd instruction */
static char *RenderSimdInstr(char *dst, const char *instr, int start1, int end1, int start2, int end2, struct asm_tok tokenarray[], enum c_bop op)
/*******************************************************************************************************************************/
{
#if AMD64_SUPPORT
__int64 i;
#else
int i;
#endif
#ifdef DEBUG_OUT
char *old = dst;
#endif
i = strlen(instr);
/* copy the instruction */
memcpy(dst, instr, i);
dst += i;
/* copy the first operand's tokens */
*dst++ = ' ';
i = tokenarray[end1].tokpos - tokenarray[start1].tokpos;
memcpy(dst, tokenarray[start1].tokpos, i);
dst += i;
if (start2 != EMPTY) {
*dst++ = ',';
/* copy the second operand's tokens */
*dst++ = ' ';
i = tokenarray[end2].tokpos - tokenarray[start2].tokpos;
memcpy(dst, tokenarray[start2].tokpos, i);
dst += i;
}
else if (end2 != EMPTY) {
dst += sprintf(dst, ", %d", end2);
}
*dst++ = EOLCHAR;
*dst = NULLC;
DebugMsg1(("%u RenderInstr(%s)=>%s<\n", evallvl, instr, old));
return(dst);
}
/* render a Simd instruction using a temporary float immediate macro FP4/FP8 */
static char *RenderSimdInstrTM(char *dst, const char *instr, int start1, int end1, int start2, int end2, struct asm_tok tokenarray[], enum c_bop op, bool isDouble)
/*******************************************************************************************************************************/
{
#if AMD64_SUPPORT
__int64 i;
#else
int i;
#endif
#ifdef DEBUG_OUT
char *old = dst;
#endif
i = strlen(instr);
/* copy the instruction */
memcpy(dst, instr, i);
dst += i;
/* copy the first operand's tokens */
*dst++ = ' ';
i = tokenarray[end1].tokpos - tokenarray[start1].tokpos;
memcpy(dst, tokenarray[start1].tokpos, i);
dst += i;
if (start2 != EMPTY) {
*dst++ = ',';
/* copy the second operand's tokens */
*dst++ = ' ';
*dst++ = 'F';
*dst++ = 'P';
if(isDouble)
*dst++ = '8';
else
*dst++ = '4';
*dst++ = '(';
i = tokenarray[end2].tokpos - tokenarray[start2].tokpos;
memcpy(dst, tokenarray[start2].tokpos, i);
dst += i;
*dst++ = ')';
}
else if (end2 != EMPTY) {
dst += sprintf(dst, ", %d", end2);
}
*dst++ = EOLCHAR;
*dst = NULLC;
DebugMsg1(("%u RenderInstr(%s)=>%s<\n", evallvl, instr, old));
return(dst);
}
static char *GetLabelStr(int_32 label, char *buff)
/**************************************************/
{
sprintf(buff, LABELFMT, label);
return(buff);
}
/* render a Jcc instruction */
static char *RenderJcc(char *dst, char cc, int neg, uint_32 label)
/******************************************************************/
{
#ifdef DEBUG_OUT
char *old = dst;
#endif
/* create the jump opcode: j[n]cc */
*dst++ = 'j';
if (neg)
*dst++ = 'n';
*dst++ = cc;
if (neg == FALSE)
*dst++ = ' '; /* make sure there's room for the inverse jmp */
*dst++ = ' ';
GetLabelStr(label, dst);
dst += strlen(dst);
*dst++ = EOLCHAR;
*dst = NULLC;
DebugMsg1(("%u RenderJcc()=>%s<\n", evallvl, old));
return(dst);
}
/* a "token" in a C expression actually is an assembly expression */
static ret_code GetToken(struct hll_item *hll, int *i, struct asm_tok tokenarray[], struct expr *opnd)
/******************************************************************************************************/
{
int end_tok;
/* scan for the next C operator in the token array.
* because the ASM evaluator may report an error if such a thing
* is found ( CARRY?, ZERO? and alikes will be regarded as - not yet defined - labels )
*/
for (end_tok = *i; end_tok < Token_Count; end_tok++) {
if ((GetCOp(&tokenarray[end_tok])) != COP_NONE)
break;
}
if (end_tok == *i) {
opnd->kind = EXPR_EMPTY;
return(NOT_ERROR);
}
if (ERROR == EvalOperand(i, tokenarray, end_tok, opnd, 0))
return(ERROR);
/* v2.11: emit error 'syntax error in control flow directive'.
* May happen for expressions like ".if 1 + CARRY?"
*/
if (*i > end_tok) {
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
return(NOT_ERROR);
}
static uint_32 GetLabel(struct hll_item *hll, int index)
/********************************************************/
{
/**/myassert(hll->labels[index]);
return(hll->labels[index]);
}
/* a "simple" expression is
* 1. two tokens, coupled with a <cmp> operator: == != >= <= > <
* 2. two tokens, coupled with a "&" operator
* 3. unary operator "!" + one token
* 4. one token (short form for "<token> != 0")
*/
static ret_code GetSimpleExpression(struct hll_item *hll, int *i, struct asm_tok tokenarray[], int ilabel, bool is_true, char *buffer, struct hll_opnd *hllop)
/**************************************************************************************************************************************************************/
{
enum c_bop op;
char instr;
int op1_pos;
int op1_end;
int op2_pos;
int op2_end;
char *p;
struct expr op1;
struct expr op2;
uint_32 label;
DebugMsg1(("%u GetSimpleExpression(>%.32s< buf=>%s<) enter\n", evallvl, tokenarray[*i].tokpos, buffer));
while (tokenarray[*i].string_ptr[0] == '!' && tokenarray[*i].string_ptr[1] == '\0') {
(*i)++; //GetCOp( i );
is_true = 1 - is_true;
}
/* the problem with '()' is that is might enclose just a standard Masm
* expression or a "hll" expression. The first case is to be handled
* entirely by the expression evaluator, while the latter case is to be
* handled HERE!
*/
if (tokenarray[*i].token == T_OP_BRACKET) {
int brcnt;
int j;
for (brcnt = 1, j = *i + 1; tokenarray[j].token != T_FINAL; j++) {
if (tokenarray[j].token == T_OP_BRACKET)
brcnt++;
else if (tokenarray[j].token == T_CL_BRACKET) {
brcnt--;
if (brcnt == 0) /* a standard Masm expression? */
break;
}
else if ((GetCOp(&tokenarray[j])) != COP_NONE)
break;
}
if (brcnt) {
(*i)++;
DebugMsg1(("%u GetSimpleExpression: calling GetExpression, i=%u\n", evallvl, *i));
if (ERROR == GetExpression(hll, i, tokenarray, ilabel, is_true, buffer, hllop))
return(ERROR);
if (tokenarray[*i].token != T_CL_BRACKET) {
//if (( tokenarray[*i].token == T_FINAL ) || ( tokenarray[*i].token == T_CL_BRACKET ))
DebugMsg(("GetSimpleExpression: expected ')', found: %s\n", tokenarray[*i].string_ptr));
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
(*i)++;
return(NOT_ERROR);
}
}
/* get (first) operand */
op1_pos = *i;
if (ERROR == GetToken(hll, i, tokenarray, &op1))
return (ERROR);
op1_end = *i;
op = GetCOp(&tokenarray[*i]); /* get operator */
/* lower precedence operator ( && or || ) detected? */
if (op == COP_AND || op == COP_OR) {
/* v2.11: next 2 lines removed - && and || operators need a valid first operand */
//if ( op1.kind == EXPR_EMPTY )
// return( NOT_ERROR );
op = COP_NONE;
}
else if (op != COP_NONE)
(*i)++;
label = GetLabel(hll, ilabel);
DebugMsg1(("%u GetSimpleExpression: EvalOperand ok, kind=%X, i=%u [%s]\n", evallvl, op1.kind, *i, tokenarray[*i].tokpos));
/* check for special operators with implicite operand:
* COP_ZERO, COP_CARRY, COP_SIGN, COP_PARITY, COP_OVERFLOW
*/
if (op >= COP_ZERO) {
if (op1.kind != EXPR_EMPTY) {
DebugMsg(("GetSimpleExpression: non-empty expression rejected: %s\n", tokenarray[op1_pos].tokpos));
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
p = buffer;
hllop->lastjmp = p;
RenderJcc(p, flaginstr[op - COP_ZERO], !is_true, label);
return(NOT_ERROR);
}
switch (op1.kind) {
case EXPR_EMPTY:
DebugMsg(("GetSimpleExpression: empty expression rejected\n"));
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE)); /* v2.09: changed from NOT_ERROR to ERROR */
case EXPR_FLOAT:
DebugMsg(("GetSimpleExpression: float expression rejected: %s\n", tokenarray[op1_pos].tokpos));
return(EmitError(REAL_OR_BCD_NUMBER_NOT_ALLOWED)); /* v2.10: added */
}
if (op == COP_NONE){
switch (op1.kind) {
case EXPR_REG:
if (op1.indirect == FALSE) {
p = RenderInstr(buffer, "test", op1_pos, op1_end, op1_pos, op1_end, tokenarray);
hllop->lastjmp = p;
RenderJcc(p, 'z', is_true, label);
break;
}
/* no break */
case EXPR_ADDR:
p = RenderInstr(buffer, "cmp", op1_pos, op1_end, EMPTY, 0, tokenarray);
hllop->lastjmp = p;
RenderJcc(p, 'z', is_true, label);
break;
case EXPR_CONST:
#if 0
/* v2.05: string constant is allowed! */
if (op1.string != NULL) {
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
#endif
/* v2.11: error if constant doesn't fit in 32-bits */
if (op1.hvalue != 0 && op1.hvalue != -1)
return(EmitConstError(&op1));
hllop->lastjmp = buffer;
if ((is_true == TRUE && op1.value) ||
(is_true == FALSE && op1.value == 0)) {
sprintf(buffer, "jmp " LABELFMT EOLSTR, label);
}
else {
//strcpy( buffer, " " EOLSTR ); /* v2.11: obsolete */
*buffer = NULLC;
}
break;
#ifdef DEBUG_OUT
default: /**/myassert(0); break;
#endif
}
return(NOT_ERROR);
}
/* get second operand for binary operator */
op2_pos = *i;
if (ERROR == GetToken(hll, i, tokenarray, &op2)) {
return(ERROR);
}
DebugMsg1(("%u GetSimpleExpression: EvalOperand 2 ok, type=%X, i=%u [%s]\n", evallvl, op2.type, *i, tokenarray[*i].tokpos));
if (op2.kind != EXPR_CONST && op2.kind != EXPR_ADDR && op2.kind != EXPR_REG && op2.kind != EXPR_FLOAT) { /* UASM 2.35 Added EXPR_FLOAT */
DebugMsg(("GetSimpleExpression: syntax error, op2.kind=%u\n", op2.kind));
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
op2_end = *i;
/* now generate ASM code for expression */
if (op == COP_ANDB) {
p = RenderInstr(buffer, "test", op1_pos, op1_end, op2_pos, op2_end, tokenarray);
hllop->lastjmp = p;
RenderJcc(p, 'e', is_true, label);
}
else if (op <= COP_LE) { /* ==, !=, >, <, >= or <= operator */
/*
* optimisation: generate 'or EAX,EAX' instead of 'cmp EAX,0'.
* v2.11: use op2.value64 instead of op2.value
*/
if (Options.masm_compat_gencode &&
(op == COP_EQ || op == COP_NE) &&
op1.kind == EXPR_REG && op1.indirect == FALSE &&
op2.kind == EXPR_CONST && op2.value64 == 0) {
p = RenderInstr(buffer, "or", op1_pos, op1_end, op1_pos, op1_end, tokenarray);
}
/* Uasm 2.18 optimisation: generate 'test EAX,EAX' instead of 'cmp EAX,0'. */
else if ((op == COP_EQ || op == COP_NE) &&
op1.kind == EXPR_REG && op1.indirect == FALSE &&
op2.kind == EXPR_CONST && op2.value64 == 0) {
p = RenderInstr(buffer, "test", op1_pos, op1_end, op1_pos, op1_end, tokenarray);
}
/* ------------------------------------------------------------------------------------------------------------ */
/* UASM 2.35 support for floating point expression with SIMD registers */
/* ------------------------------------------------------------------------------------------------------------ */
/* reg OP reg */
else if (op1.kind == EXPR_REG && op1.indirect == FALSE && (GetValueSp(op1.base_reg->tokval) & OP_XMM) && // SizeFromRegister(op1.base_reg->tokval) == 16 &&
op2.kind == EXPR_REG && op2.indirect == FALSE && (GetValueSp(op2.base_reg->tokval) & OP_XMM)) //SizeFromRegister(op2.base_reg->tokval) == 16)
{
if (op1.mem_type == MT_REAL8 || op2.mem_type == MT_REAL8)
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstr(buffer, "ucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
else
p = RenderSimdInstr(buffer, "vucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
}
else
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstr(buffer, "ucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
else
p = RenderSimdInstr(buffer, "vucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
}
}
/* reg OP [reg] reg OP [expr] reg OP variable */
else if (op1.kind == EXPR_REG && op1.indirect == FALSE && SizeFromRegister(op1.base_reg->tokval) == 16 &&
((op2.kind == EXPR_REG && op2.indirect == TRUE) || op2.kind == EXPR_ADDR) )
{
if (op1.mem_type == MT_REAL8 || op2.mem_type == MT_REAL8)
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstr(buffer, "ucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
else
p = RenderSimdInstr(buffer, "vucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
}
else
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstr(buffer, "ucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
else
p = RenderSimdInstr(buffer, "vucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op);
}
}
/* reg OP float_imm */
else if (op1.kind == EXPR_REG && op1.indirect == FALSE && SizeFromRegister(op1.base_reg->tokval) == 16 && (op2.kind == EXPR_CONST || op2.kind == EXPR_FLOAT) )
{
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
/*if (op1.mem_type == MT_REAL8 || op2.mem_type == MT_REAL8)
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstrTM(buffer, "ucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op, TRUE);
else
p = RenderSimdInstrTM(buffer, "vucomisd", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op, TRUE);
}
else
{
if (ModuleInfo.arch == ARCH_SSE)
p = RenderSimdInstrTM(buffer, "ucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op, FALSE);
else
p = RenderSimdInstrTM(buffer, "vucomiss", op1_pos, op1_end, op2_pos, op2_end, tokenarray, op, FALSE);
}*/
}
else {
p = RenderInstr(buffer, "cmp", op1_pos, op1_end, op2_pos, op2_end, tokenarray);
}
instr = ((IS_SIGNED(op1.mem_type) || IS_SIGNED(op2.mem_type)) ? signed_cjmptype[op - COP_EQ] : unsigned_cjmptype[op - COP_EQ]);
hllop->lastjmp = p;
RenderJcc(p, instr, neg_cjmptype[op - COP_EQ] ? is_true : !is_true, label);
}
else {
DebugMsg(("GetSimpleExpression: unexpected operator %s\n", tokenarray[op1_pos].tokpos));
return(EmitError(SYNTAX_ERROR_IN_CONTROL_FLOW_DIRECTIVE));
}
return(NOT_ERROR);
}
/* invert a Jump:
* - Jx -> JNx (x = e|z|c|s|p|o )
* - JNx -> Jx (x = e|z|c|s|p|o )
* - Ja -> Jbe, Jae -> Jb
* - Jb -> Jae, Jbe -> Ja
* - Jg -> Jle, Jge -> Jl
* - Jl -> Jge, Jle -> Jg
* added in v2.11:
* - jmp -> 0
* - 0 -> jmp
*/
static void InvertJump(char *p)
/*******************************/
{
if (*p == NULLC) { /* v2.11: convert 0 to "jmp" */
strcpy(p, "jmp ");
return;
}
p++;
if (*p == 'e' || *p == 'z' || *p == 'c' || *p == 's' || *p == 'p' || *p == 'o') {
*(p + 1) = *p;
*p = 'n';
return;
}
else if (*p == 'n') {
*p = *(p + 1);
*(p + 1) = ' ';
return;
}
else if (*p == 'a') {
*p++ = 'b';
}
else if (*p == 'b') {
*p++ = 'a';
}
else if (*p == 'g') {
*p++ = 'l';
}
else if (*p == 'l') {
*p++ = 'g';
}
else {
/* v2.11: convert "jmp" to 0 */
if (*p == 'm') {
p--;
*p = NULLC;
}
return;
}
if (*p == 'e')
*p = ' ';
else
*p = 'e';
return;
}
/* Replace a label in the source lines generated so far.
* todo: if more than 0xFFFF labels are needed,
* it may happen that length of nlabel > length of olabel!
* then the simple memcpy() below won't work!
*/
static void ReplaceLabel(char *p, uint_32 olabel, uint_32 nlabel)
/*****************************************************************/
{
char oldlbl[16];
char newlbl[16];
int i;
GetLabelStr(olabel, oldlbl);
GetLabelStr(nlabel, newlbl);
i = (int)strlen(newlbl);
DebugMsg1(("%u ReplaceLabel(%s->%s, >%s<)\n", evallvl, oldlbl, newlbl, p));
while (p = strstr(p, oldlbl)) {
memcpy(p, newlbl, i);
p += i;
}
}
/* operator &&, which has the second lowest precedence, is handled here */
static ret_code GetAndExpression(struct hll_item *hll, int *i, struct asm_tok tokenarray[], int ilabel, bool is_true, char *buffer, struct hll_opnd *hllop)
/***********************************************************************************************************************************************************/
{
char *ptr = buffer;
uint_32 truelabel = 0;
char buff[16];
int nlabel;
int olabel;
DebugMsg1(("%u GetAndExpression(>%.32s< buf=>%s<) enter\n", evallvl, tokenarray[*i].tokpos, buffer));
if (ERROR == GetSimpleExpression(hll, i, tokenarray, ilabel, is_true, ptr, hllop))
return(ERROR);
while (COP_AND == GetCOp(&tokenarray[*i])) {
(*i)++;
DebugMsg1(("%u GetAndExpression: &&-operator found, is_true=%u, lastjmp=%s\n", evallvl, is_true, hllop->lastjmp ? hllop->lastjmp : "NULL"));
if (is_true) {
/* todo: please describe what's done here and why! */
if (hllop->lastjmp) {
char *p = hllop->lastjmp;
InvertJump(p); /* step 1 */
if (truelabel == 0) /* step 2 */
truelabel = GetHllLabel();
if (*p ) {/* v2.11: there might be a 0 at lastjmp */
p += 4; /* skip 'jcc ' or 'jmp ' */
GetLabelStr(truelabel, p);
strcat(p, EOLSTR);
}
/* Uasm 2.18 fixed WHILE with && */
if (hllop->lasttruelabel)
ReplaceLabel(buffer,hllop->lasttruelabel, truelabel);
nlabel = GetHllLabel();
olabel = GetLabel(hll, ilabel);
GetLabelStr(olabel, buff);
strcat(ptr, buff);
strcat(ptr, LABELQUAL EOLSTR);
DebugMsg1(("%u GetAndExpression: label added >%s<\n", evallvl, ptr));
ReplaceLabel(buffer, olabel, nlabel);
hllop->lastjmp = NULL;
}
}
ptr += strlen(ptr);
hllop->lasttruelabel = 0; /* v2.08 */
if (ERROR == GetSimpleExpression(hll, i, tokenarray, ilabel, is_true, ptr, hllop))
return(ERROR);
};
if (truelabel > 0) {
ptr += strlen(ptr);
GetLabelStr(truelabel, ptr);
strcat(ptr, LABELQUAL EOLSTR);
DebugMsg1(("%u GetAndExpression: label added >%s<\n", evallvl, ptr));
hllop->lastjmp = NULL;
}
return(NOT_ERROR);
}
/* operator ||, which has the lowest precedence, is handled here */
static ret_code GetExpression(struct hll_item *hll, int *i, struct asm_tok tokenarray[], int ilabel, bool is_true, char *buffer, struct hll_opnd *hllop)
/********************************************************************************************************************************************************/
{
char *ptr = buffer;
uint_32 truelabel = 0;
DebugMsg1(("%u GetExpression(>%.32s< buf=>%s<) enter\n", ++evallvl, tokenarray[*i].tokpos, buffer));
/* v2.08: structure changed from for(;;) to while() to increase
* readability and - optionally - handle the second operand differently
* than the first.
*/
if (ERROR == GetAndExpression(hll, i, tokenarray, ilabel, is_true, ptr, hllop)) {
DebugMsg1(("%u GetExpression exit, error\n", evallvl--));