ZealOS/src/Compiler/CMisc.CC

Bool Option(I64 num,Bool val)
{//Set compiler $LK,"Option",A="FI:::/Doc/Options.DD"$ to val.
  return BEqual(&Fs->last_cc->opts,num,val);
}

Bool GetOption(I64 num)
{//Get state of compiler $LK,"option",A="MN:OPTf_ECHO"$.
  return Bt(&Fs->last_cc->opts,num);
}

asm {
_LAST_FUN::	//See $LK,"_CALL_IND",A="MN:_CALL_IND"$
	PUSH	RBP
	MOV	RBP,RSP
	PUSH	RSI
	PUSH	RDI

	XOR	RAX,RAX
	MOV	RAX,FS:CTask.last_fun[RAX]
	TEST	RAX,RAX
	JZ	@@10
	MOV	RDX,U64 CHashFun.exe_addr[RAX]

	MOV	RCX,U64 SF_ARG1[RBP]	//argc
	MOV	RSI,U64 SF_ARG2[RBP]	//argv
	SHL	RCX,3
	SUB	RSP,RCX
	MOV	RDI,RSP
	REP_MOVSB
	TEST	RDX,RDX
	JZ	@@05

	CALL	RDX
	POP	RDI
	POP	RSI
	POP	RBP
	RET1	16

@@05:	MOV	RCX,U64 SF_ARG1[RBP]	//argc
	SHL	RCX,3
	ADD	RSP,RCX
	XOR	RAX,RAX
@@10:	POP	RDI
	POP	RSI
	POP	RBP
	RET1	16
}
_extern _LAST_FUN I64 LastFun(I64 argc,I64 *argv); //Execute last fun with args.

I64 PassTrace(I64 i=0b10001111101)
{//Ctrls which optimizer passes are displayed.
  I64 old=Fs->last_cc->pass_trace;
  if (i) Fs->last_cc->saved_pass_trace=i;
  Fs->last_cc->pass_trace=i;
  return old;
}

Bool Trace(Bool val=ON)
{//Displays assembly code output from compiler.
  return Option(OPTf_TRACE,val);
}

Bool Echo(Bool val)
{//Displays text as it is being compiled.
  return Option(OPTf_ECHO,val);
}

U0 StreamPrint(U8 *format,...)
{//Injects text into the compile stream. Used in #exe{} blocks.
  U8 *buf=StrPrintJoin(NULL,format,argc,argv),*st;
  CCompCtrl *cc=Fs->last_cc;
  CStreamBlk *tmpe=cc->last_stream_blk;
  if (tmpe!=&cc->next_stream_blk) {
    st=MStrPrint("%s%s",tmpe->body,buf);
    Free(tmpe->body);
    tmpe->body=st;
  } else
    PrintErr("No exe{} blk\n");
  Free(buf);
}

U0 StreamDir()
{
  U8 *dirname;
  if (dirname=DirFile(Fs->last_cc->lex_include_stack->full_name)) {
    StreamPrint("\"%s\"",dirname);
    Free(dirname);
  }
}

CD2I32 *LexD2I32(CCompCtrl *cc,CD2I32 *p)
{//Not HolyC. Sprite-like lex 2D point.
  if (cc->token!='(')
    LexExcept(cc,"Expecting '(' at ");
  Lex(cc); //Skip (
  p->x=LexExpressionI64(cc);
  if (cc->token!=',')
    LexExcept(cc,"Expecting ',' at ");
  Lex(cc); //Skip ,
  p->y=LexExpressionI64(cc);
  if (cc->token!=')')
    LexExcept(cc,"Expecting ')' at ");
  Lex(cc); //Skip )
  return p;
}

CD3I32 *LexD3I32(CCompCtrl *cc,CD3I32 *p)
{//Not HolyC. Sprite-like lex 3D point.
  if (cc->token!='(')
    LexExcept(cc,"Expecting '(' at ");
  Lex(cc); //Skip (
  p->x=LexExpressionI64(cc);
  if (cc->token!=',')
    LexExcept(cc,"Expecting ',' at ");
  Lex(cc); //Skip ,
  p->y=LexExpressionI64(cc);
  if (cc->token!=',')
    LexExcept(cc,"Expecting ',' at ");
  Lex(cc); //Skip ,
  p->z=LexExpressionI64(cc);
  if (cc->token!=')')
    LexExcept(cc,"Expecting ')' at ");
  Lex(cc); //Skip )
  return p;
}

U8 *CmdLinePrompt()
{
  I64 i;
  U8 *res,*st;
  if (Fs->new_answer) {
    if (Fs->answer_type&~1!=RT_I0) {
      if (Fs->answer_type==RT_F64)
	"%8.6fs ansf=%15.7g\n",Fs->answer_time,Fs->answer;
      else
	"%8.6fs ans=0x%08X=%d\n",Fs->answer_time,Fs->answer,Fs->answer;
    } else {
      "%8.6fs\n",Fs->answer_time;
      Fs->answer=0;
    }
    Fs->new_answer=FALSE;
  }
  if (st=DirCur) {
    "%s",st;
    Free(st);
  }
  '>';
  if (IsDebugMode&&IsRaw)
    RawDr;

  LBts(&Fs->task_flags,TASKf_CMD_LINE_PROMPT);
  st=GetStr(,,GSF_SHIFT_ESC_EXIT);
  LBtr(&Fs->task_flags,TASKf_CMD_LINE_PROMPT);

  i=StrLen(st);
  res=MAlloc(i+1+2);
  MemCopy(res,st,i+1);
  i--;
  while (i>=0 && Bt(char_bmp_white_space,res[i]))
    i--;
  i++;
  if (i>0 && res[i-1]==';')
    res[i++]=';'; //The Lex goes one beyond
  res[i++]='\n';//#define goes to '\n'
  res[i]=0;

  Free(st);
  return res;
}