TweetFollow Us on Twitter

Jan 91 Letters
Volume Number:7
Issue Number:1
Column Tag:Letters

A "Real" Database and Benchmarks

By Kirk Chase, Editor

A “Real” Database Comes to the Macintosh

Joseph S. Terry, Jr., President

Ajalon Corporation

Oxnard, CA

Developers in the Macintosh world are at a disadvantage. Programmers on other platforms have had a much greater choice of tools for a long time. Reading through MacTutor’s advertisers index one finds MACYACC from Abraxas Software. This tool is based on Yet-Another-Compiler-Compiler (YACC) from the UNIX world. YACC has proven itself over some 15 years to be an extremely valuable tool. I welcome it’s cousin on the Macintosh. Language Systems’ Fortran, a language where it can truly be said, “You had to be there!”. The “there” part was “in the beginning”. I welcome the “Old Man” or “Old Woman” of computer languages to the Mac.

Although I don’t want to endorse any particular product, we must realize that other platforms have a great deal to offer the Macintosh. Remember that those old guys and gals really DID know something.

It seems that some Mac programmers think that really “neat” programming only began in late ’81, continued through ’82 and ’83, and culminated in the release of the world’s FIRST computer in ’84: Macintosh!

I had hoped that the product I chose to debut as a serious quasi-horizontal Mac developer would be less controversial (and more polished) than it is. But, that is not to be.

The Mousehole Report of November 1990 contained a memo which raised some uncomfortable points about my new product, and I would like to set the record straight. Whenever we are driving and I say, “Should we go straight?”, my friend Kenneth from Oklahoma says, “Don’t go straight, go forward!”. As I go forward into the future, I would like to say to everyone who reads MacTutor, I am very glad to be here!

My partner, Adam R. Joyner, Chairman/CEO, and I have formed a company called Ajalon Corporation. We have become the exclusive resellers, support and developers of db_Vista III for the Macintosh from Raima Corporation of Bellevue, Washington. db_Vista III is a database system for C programmers composed of three main modules; db_Vista, db_Query and db_REVISE. db_Vista is the actual database engine. This engine is available for THINK C and MPW C currently. The source is available at a very reasonable price. Less than $1000.00 for a complete single user system with source included. We have plans for a HyperCard XCMD version, and similar “glue” for THINK PASCAL, MPW Object PASCAL (read MacApp) and, yes, FORTRAN.

db_Query is a complete report and query application based on a subset of SQL. With db_Query the user or programmer can perform arbitrarily complex queries using the english-like SQL language and store the information obtained in it’s new format.

db_REVISE allows the developer to reorganize the database. Add, change or delete files, fields, keys, compound keys, or sets and retain the data already in the database without cumbersome exporting and importing. Using an advanced Revision Description Language(RDL) data can be merged from different databases into a third hybrid, on the fly, under program control.

In the November 1990 Mousehole “Mikev” talked about db_Vista. He said “ ... I don’t recommend these products ...”, chilling, and further “ ... The source is just about worthless: it is largely uncommented, undocumented, and unstructured.”

Ok. one at a time. Yes, It is hard to recommend these products given the kind of neglect that the Macintosh version has been subjected to. The product had not been updated in over a year before Adam joined Raima in February ’90. Adam was their sole “Mac Guy” most recently. All the other db_Vista developers were bred in the UNIX and DOS worlds and knew very little about the orphaned Mac product. In their defense, Raima was justified in letting go of the Macintosh version . The UNIX and DOS database tools markets are TEN TIMES the size of the Mac marketplace and has been their bread and butter. Believe it. That’s THEIR focus, NOT ours. We are the Macintosh evangelist for db_Vista, if you will, and we think you would be amazed if you knew the whole truth. FACT: The db_Vista III development application doesn’t run well under MultiFinder. FIX: WaitNextEvent vs. GetNextEvent. FACT: To import data an application is sublaunched and then returns to the caller. FIX: Not necessary. It Works! It is a decidedly UNIX/DOS way of looking at the problem, but it works!.

We will be integrating these tools into the main application and providing more of the Macintosh “Advantage” as soon as we can, but don’t let that hold up serious development tasks. The basic database technology is solid and has YEARS of proven reliability in the PC and Unix world. Remember, one of db_Vista’s strengths is it’s cross platform portability, which supports DOS, Windows, Unix and VMS environments; an important feature in today’s heterogeneous development environments.

Adam and I are committed 110% to making all the right changes in the product to make it a contender for 1st place in the Mac developers heart. db_Vista is very fast. It was bred in a world where memory is precious. Therefore it simply opens its wings and soars on a Mac with One megabyte of memory. Try that with 4th Dimension.

Regarding technical support, yes, Raima did have problems with supporting the product. Throughout the history of the product they never allocated the resources or talent necessary to provide even adequate support to customers. We, on the other hand, are committed to superior technical support. This is critical when dealing with a product aimed at the developer community. Developers have a high degree of intelligence and need sophisticated support. They also have deadlines and can’t afford to waste time with wishy-washy responses. If a problem occurs we need to fix it. Immediately.

“ ... largely uncommented, undocumented, and unstructured ...”, Yes the source is large and not the prettiest. But, this is not a NEW database just released to the world. The Mac version just needs some special care that an experienced Mac/UNIX/DOS programmer can give before it will be humming. Raima didn’t understand the Mac or the 68000, but WE DO! Also, the source code was intended for customers who wanted to perform MAJOR changes to the basic db_Vista technology. Unfortunately, a lot of customers had to resort to using the source to debug problems in the db_Vista product. Now that we have the product WE will fix the problems, not the customer.

Besides, I wonder if “Mikev” has attended the developer classes that Raima holds each and every month all over the world. The Basics class, the Advanced class, and the Internals class. Each class is $300.00 per day. Two days for Basics, one for Advanced, and two for the Internals. This is a serious, relatively bug free and well respected database in the UNIX and DOS worlds. The Macintosh lags behind, but we intend to change that.

db_Vista has zero(0) user interface tools and that’s the way we like it. Use MacApp, THINK Class Library, AppMaker, Prototyper 3.0, HyperCard, SuperCard, or MacWorkStation to build the user interface. We will handle the database portion for you. db_Vista has powerful network model features that enable db_Vista to outperform nearly every other relational database, yet the relational database features are there for those times when it’s most appropriate.

db_Vista is a good tool. It was never brought over to the Mac with TLC. We will give the product that care, thought, and time. If you bought it, contact us and see the future. If you haven’t, then call us and “Let us show You”. (I love that line.)

Well, overall I couldn’t blame “Mikev”. Mac products need developers who care about the Mac, who understand it’s complexities and appreciate it’s simplicities. Adam and I feel that we can earn your support and your development dollars.

Joseph S. Terry, Jr.

President

Ajalon Corporation

HEADQUARTERS:

Ajalon Corporation

26210 Pacific Highway South

Suite 334

Kent, WA 98032

(206) 946-8178

Branch Office:

The Knowledge Konnection, a subsidiary of Ajalon Corporation

2073 N. Oxnard Blvd.

Suite 177

Oxnard, CA 93030

(805) 985-7761

Response to “Benchmark Challenge”

David T. Craig

Kansas City, MO

I would like to respond to the letter by Walt Davis and Steve Bayer (MT, Sept. 1990, p. 4+) titled “Benchmark Challenge”.

Note: Source code files accompanying this letter are located on MacTech CD-ROM or source code disks.

After compiling the Davis/Bayer IF-THEN-ELSE and CASE statement routines in MPW Pascal 3.0 I obtained the following execution time results:

When compared against the Macintosh II results in the letter obtained using the THINK Pascal 2.0 compiler MPW Pascal 3.0’s execution times are very similar. My complete source code for the MPW Pascal program are enclosed along with a listing of the generated assembly code. Note that the assembly code showed the IF-THEN-ELSE routine consisting of a sequence of comparisons. The CASE routine showed that MPW Pascal generates a lookup table containing the offsets of the CASE routines. I did not test MPW C 3.0 since I’m not a C programmer.

Davis and Bayer made an excellent statement in their letter about a topic which in my opinion has long been misunderstood by many programmers. They say “the relative speed of a high-level language depends on the assembly language produced by the compiler and not the high-level language itself.” As Davis and Bayer demonstrated, their THINK C code ran slower than their THINK Pascal code even tho everyone “knows” C is faster than Pascal. Niklaus Wirth, the designer of Pascal and Modula-2, stated many years ago that judgments upon the execution speed of computer languages are nonsense since it’s the implementation of the languages that is crucial in execution speed, not the language design. Wirth in the early days of Pascal (c. mid-1970) created a Pascal compiler at ETH, his Swiss university, that produced faster code than the university FORTRAN compiler. And everyone “knows” FORTRAN is faster than Pascal!

One last comment. Davis and Bayer’s source code should not use the Macintosh ROM call GetDateTime() for benchmarking purposes. This call returns the current system time in units of seconds. For benchmarking purposes they should use TickCount() which returns its time in 1/60 of a second, a finer granularity which is more accurate.

Listing:  ptest.make

#   File:       ptest.make
#   Target:     ptest
#   Sources:    ptest.p
#   Created:    Sunday, September 30, 1990 1:21:18 PM

ptest.p.o ƒ ptest.make ptest.p
  Pascal ptest.p

SOURCES = ptest.p
OBJECTS = ptest.p.o

ptest ƒƒ ptest.make {OBJECTS}
 Link -w -c ‘MPS ‘ -t MPST 
 {OBJECTS} 
 “{Libraries}”stubs.o 
 “{Libraries}”Runtime.o 
 “{Libraries}”Interface.o 
 “{PLibraries}”PasLib.o 
 “{PLibraries}”SANELib.o 
 “{Libraries}”ToolLibs.o 
 -o ptest
Listing:  ptest.p

{ MPW Pascal 3.0 program to test the execution speed of IF-THIN-ELSE 
}
{ and CASE statements.  Written from a discussion in MacTutor magazine 
}
{ (Sept. 1990, pp. 4-5). }
{ written by David T. Craig -- 30 Sept 1990 }
{ 9939 Locust, Apt. 4013, Kansas City, Missouri 64131 }

program p_tester;
USES
  MemTypes,   { Macintosh common types }
  OSIntf,     { Macintosh Operating System interface }
  ToolIntf,   { Macintosh ToolBox interface }
  Packages,   { Macintosh Package interface }
  SANE,       { Macintosh FP interface }
  PasLibIntf, { Pascal runtime libary interface }
  IntEnv,     { MPW integrated environment interface }
  CursorCtl;  { MPW shell cursor unit }

var global_b : integer;

{########################################################## }

{$s seg_ifthenelse}

procedure test_if_then_else (b: integer);

  const iteration_max = 1000000; { one million }
  
  var start_time,stop_time : longint;
      elapsed_secs         : real;
      i                    : longint;
  
  begin
    start_time := TickCount; { accurate to 1/60 of a second }
    
    for i := 1 to iteration_max do
      begin
        if b =  1 then begin end else
 if b =  2 then begin end else
 if b =  3 then begin end else
 if b =  4 then begin end else
 if b =  5 then begin end else
 if b =  6 then begin end else
 if b =  7 then begin end else
 if b =  8 then begin end else
 if b =  9 then begin end else
 if b = 10 then begin end else
 if b = 11 then begin end else
 if b = 12 then begin end else
 if b = 13 then begin end else
 if b = 14 then begin end else
 if b = 15 then begin end;
      end; { for i }
    
    stop_time := TickCount;
    
    elapsed_secs := (stop_time - start_time) / 60.0;
    
    WRITELN(‘  IF-THEN-ELSE Test [b=’,b:2,’] : ‘,elapsed_secs:0:3,’ seconds’);
  end;

{ ######################################################### }

{$s seg_case}
procedure test_case (b: integer);
  const iteration_max = 1000000; { one million }
  var start_time,stop_time : longint;
      elapsed_secs         : real;
      i                    : longint;
  begin
    start_time := TickCount; { accurate to 1/60 of a second }
    for i := 1 to iteration_max do
      begin
        case b of
    1 : begin end;
    2 : begin end;
    3 : begin end;
    4 : begin end;
    5 : begin end;
    6 : begin end;
    7 : begin end;
    8 : begin end;
    9 : begin end;
   10 : begin end;
   11 : begin end;
   12 : begin end;
   13 : begin end;
   14 : begin end;
   15 : begin end;
   
   otherwise begin end;
 end; { case b }
      end; { for i }
    
    stop_time := TickCount;
    
    elapsed_secs := (stop_time - start_time) / 60.0;
    
    WRITELN(‘  CASE Test time [b=’,b:2,’] : ‘,elapsed_secs:0:3,’ seconds’);
  end;

{ ######################################################### }

{$s Main}
begin { -- p_tester -- }

  PLSetVBuf(OUTPUT,NIL,_IOLBF,0); { Apple Macintosh MPW Shell system 
call }
  
  WRITELN(‘Starting the IF-THEN-ELSE Test ...’);
  WRITELN;
  
  for global_b := 1 to 20 do
    test_if_then_else(global_b);
  
  WRITELN;
  WRITELN(‘Starting the CASE Test ...’);
  WRITELN;
  
  for global_b := 1 to 20 do
    test_case(global_b);
  
  WRITELN;
  WRITELN(‘That’’s all folks ...’);
  
end.  { -- p_tester -- }

{ ########################################################################## 
}
{                                    finis                           
        }
{ ########################################################################## 
}

Listing: ptest.run

MPW pascal 3.0 run on a Macintosh II

Starting the IF-THEN-ELSE Test ...

  IF-THEN-ELSE Test [b= 1] :  1.883 seconds
  IF-THEN-ELSE Test [b= 2] :  2.517 seconds
  IF-THEN-ELSE Test [b= 3] :  3.150 seconds
  IF-THEN-ELSE Test [b= 4] :  3.800 seconds
  IF-THEN-ELSE Test [b= 5] :  4.467 seconds
  IF-THEN-ELSE Test [b= 6] :  5.117 seconds
  IF-THEN-ELSE Test [b= 7] :  5.767 seconds
  IF-THEN-ELSE Test [b= 8] :  6.417 seconds
  IF-THEN-ELSE Test [b= 9] :  7.067 seconds
  IF-THEN-ELSE Test [b=10] :  7.717 seconds
  IF-THEN-ELSE Test [b=11] :  8.367 seconds
  IF-THEN-ELSE Test [b=12] :  9.000 seconds
  IF-THEN-ELSE Test [b=13] :  9.650 seconds
  IF-THEN-ELSE Test [b=14] : 10.250 seconds
  IF-THEN-ELSE Test [b=15] : 10.233 seconds
  IF-THEN-ELSE Test [b=16] : 10.233 seconds
  IF-THEN-ELSE Test [b=17] : 10.250 seconds
  IF-THEN-ELSE Test [b=18] : 10.233 seconds
  IF-THEN-ELSE Test [b=19] : 10.233 seconds
  IF-THEN-ELSE Test [b=20] : 10.250 seconds

Starting the CASE Test ...

  CASE Test time [b= 1] : 3.950 seconds
  CASE Test time [b= 2] : 3.950 seconds
  CASE Test time [b= 3] : 3.950 seconds
  CASE Test time [b= 4] : 3.950 seconds
  CASE Test time [b= 5] : 3.950 seconds
  CASE Test time [b= 6] : 3.950 seconds
  CASE Test time [b= 7] : 3.950 seconds
  CASE Test time [b= 8] : 3.950 seconds
  CASE Test time [b= 9] : 3.967 seconds
  CASE Test time [b=10] : 3.950 seconds
  CASE Test time [b=11] : 3.950 seconds
  CASE Test time [b=12] : 3.950 seconds
  CASE Test time [b=13] : 3.950 seconds
  CASE Test time [b=14] : 3.950 seconds
  CASE Test time [b=15] : 3.950 seconds
  CASE Test time [b=16] : 2.583 seconds
  CASE Test time [b=17] : 2.583 seconds
  CASE Test time [b=18] : 2.583 seconds
  CASE Test time [b=19] : 2.583 seconds
  CASE Test time [b=20] : 2.583 seconds

That’s all folks ...

Listing: TEST_CASE

PROCEDURE: TEST_CASE
COMPILER : MPW Pascal 3.0
File: ptest, Resource 3, Type: CODE, Name: seg_case
Offset of first jump table entry: $00000070
Segment is $0000012E bytes long,
  and uses 1 jump table entry
00000000: 4E56 FFE2       ‘NV..’          LINK     A6,#$FFE2         
  
00000004: 48E7 0700       ‘H...’          MOVEM.L  D5-D7,-(A7)       
  
00000008: 42A7            ‘B.’            CLR.L    -(A7)             
  
0000000A: A975            ‘.u’            _TickCount                 
    ; A975
0000000C: 2C1F            ‘,.’            MOVE.L   (A7)+,D6          
  
0000000E: 7E01            ‘~.’            MOVEQ    #$01,D7           
  
00000010: 6038            ‘`8’            BRA.S    *+$003A           
  ; 0000004A
00000012: 302E 0008       ‘0...’          MOVE.W   $0008(A6),D0      
  
00000016: 5340            ‘S@’            SUBQ.W   #$1,D0            
  
00000018: 6B2E            ‘k.’            BMI.S    *+$0030           
  ; 00000048
0000001A: 0C40 000E       ‘.@..’          CMPI.W   #$000E,D0         
  
0000001E: 6E28            ‘n(‘            BGT.S    *+$002A           
  ; 00000048
00000020: D040            ‘.@’            ADD.W    D0,D0             
  
00000022: 303B 0006       ‘0;..’          MOVE.W   *+$0008(D0.W),D0  
  ; 0000002A
00000026: 4EFB 0000       ‘N...’          JMP      *+$0002(D0.W)     
  ; 00000028
0000002A: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
0000002E: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
00000032: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
00000036: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
0000003A: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
0000003E: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
00000042: 0020 0020       ‘. . ‘          ORI.B    #$20,-(A0)        
  ; ‘ ‘
00000046: 0020 5287       ‘. R.’          DC.W     $0020,$5287       
  ; ORI.B #$??87,-(A0)
0000004A: 0C87 000F 4240  ‘....B@’        CMPI.L   #$000F4240,D7     
  
00000050: 6FC0            ‘o.’            BLE.S    *-$003E           
  ; 00000012
00000052: 42A7            ‘B.’            CLR.L    -(A7)             
  
00000054: A975            ‘.u’            _TickCount                 
    ; A975
00000056: 2A1F            ‘*.’            MOVE.L   (A7)+,D5          
  
00000058: 2005            ‘ .’            MOVE.L   D5,D0             
  
0000005A: 9086            ‘..’            SUB.L    D6,D0             
  
0000005C: 2D40 FFE2       ‘-@..’          MOVE.L   D0,-$001E(A6)     
  
00000060: 486E FFE2       ‘Hn..’          PEA      -$001E(A6)        
  
00000064: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
00000068: 3F3C 280E       ‘?<(.’          MOVE.W   #$280E,-(A7)      
  
0000006C: A9EB            ‘..’            _FP68K                     
  ; A9EB
0000006E: 487A 00B0       ‘Hz..’          PEA      *+$00B2           
  ; 00000120
00000072: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
00000076: 3F3C 0006       ‘?<..’          MOVE.W   #$0006,-(A7)      
  
0000007A: A9EB            ‘..’            _FP68K                     
  ; A9EB
0000007C: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
00000080: 486E FFF4       ‘Hn..’          PEA      -$000C(A6)        
  
00000084: 3F3C 1010       ‘?<..’          MOVE.W   #$1010,-(A7)      
  
00000088: A9EB            ‘..’            _FP68K                     
  ; A9EB
0000008A: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
0000008E: 487A 007A       ‘Hz.z’          PEA      *+$007C           
  ; 0000010A
00000092: 4267            ‘Bg’            CLR.W    -(A7)             
  
00000094: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
00000098: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
0000009C: 302E 0008       ‘0...’          MOVE.W   $0008(A6),D0      
  
000000A0: 48C0            ‘H.’            EXT.L    D0                
  
000000A2: 2F00            ‘/.’            MOVE.L   D0,-(A7)          
  
000000A4: 3F3C 0002       ‘?<..’          MOVE.W   #$0002,-(A7)      
  
000000A8: 4EAD 0182       ‘N...’          JSR      $0182(A5)         
  
000000AC: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000B0: 487A 0052       ‘Hz.R’          PEA      *+$0054           
  ; 00000104
000000B4: 4267            ‘Bg’            CLR.W    -(A7)             
  
000000B6: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
000000BA: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000BE: 486E FFF4       ‘Hn..’          PEA      -$000C(A6)        
  
000000C2: 2F3C 0003 0000  ‘/<....’        MOVE.L   #$00030000,-(A7)  
  
000000C8: 4EAD 0082       ‘N...’          JSR      $0082(A5)         
  
000000CC: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000D0: 487A 0028       ‘Hz.(‘          PEA      *+$002A           
  ; 000000FA
000000D4: 4267            ‘Bg’            CLR.W    -(A7)             
  
000000D6: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
000000DA: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000DE: 4EAD 017A       ‘N..z’          JSR      $017A(A5)         
  
000000E2: 4CDF 00E0       ‘L...’          MOVEM.L  (A7)+,D5-D7       
  
000000E6: 4E5E            ‘N^’            UNLK     A6                
  
000000E8: 205F            ‘ _’            MOVEA.L  (A7)+,A0          
  
000000EA: 544F            ‘TO’            ADDQ.W   #$2,A7            
  
000000EC: 4ED0            ‘N.’            JMP      (A0)              
  
000000EE: 8954            ‘.T’            OR.W     D4,(A4)           
  
000000F0: 4553            ‘ES’            DC.W     $4553             
  ; ????
000000F2: 545F            ‘T_’            ADDQ.W   #$2,(A7)+         
  
000000F4: 4341            ‘CA’            DC.W     $4341             
  ; ????
000000F6: 5345            ‘SE’            SUBQ.W   #$1,D5            
  
000000F8: 0030            ‘.0’            DC.W     $0030             
  ; ????
000000FA: 0820 7365       ‘. se’          DC.W     $0820,$7365       
  ; BTST #$??65,-(A0)
000000FE: 636F            ‘co’            BLS.S    *+$0071           
  ; 0000016F
00000100: 6E64            ‘nd’            BGT.S    *+$0066           
  ; 00000166
00000102: 7300            ‘s.’            DC.W     $7300             
  ; ????
00000104: 045D 203A       ‘.] :’          SUBI.W   #$203A,(A5)+      
  ; ‘ :’
00000108: 2000            ‘ .’            MOVE.L   D0,D0             
  
0000010A: 1420            ‘. ‘            MOVE.B   -(A0),D2          
  
0000010C: 2043            ‘ C’            MOVEA.L  D3,A0             
  
0000010E: 4153            ‘AS’            DC.W     $4153             
  ; ????
00000110: 4520            ‘E ‘            CHK.L    -(A0),D2          
  
00000112: 5465            ‘Te’            ADDQ.W   #$2,-(A5)         
  
00000114: 7374            ‘st’            DC.W     $7374             
  ; ????
00000116: 2074            ‘ t’            DC.W     $2074             
  ; ????
00000118: 696D            ‘im’            BVS.S    *+$006F           
  ; 00000187
0000011A: 6520            ‘e ‘            BCS.S    *+$0022           
  ; 0000013C
0000011C: 5B62            ‘[b’            SUBQ.W   #$5,-(A2)         
  
0000011E: 3D00            ‘=.’            MOVE.W   D0,-(A6)          
  
00000120: 4004            ‘@.’            NEGX.B   D4                
  
00000122: F000            ‘..’            DC.W     $F000             
  ; ????
00000124: 0000 0000       ‘....’          ORI.B    #$00,D0           
  
00000128: 0000 2020       ‘..  ‘          DC.W     $0000,$2020       
  ; ORI.B #$??20,D0

FINIS

Listing: TEST_IF_THEN_ELSE

PROCEDURE: TEST_IF_THEN_ELSE
COMPILER : MPW Pascal 3.0

File: ptest, Resource 2, Type: CODE, Name: seg_ifthenelse
Offset of first jump table entry: $00000068
Segment is $00000178 bytes long,
  and uses 1 jump table entry
00000000: 4E56 FFE2       ‘NV..’          LINK     A6,#$FFE2         
  
00000004: 48E7 0F00       ‘H...’          MOVEM.L  D4-D7,-(A7)       
  
00000008: 3E2E 0008       ‘>...’          MOVE.W   $0008(A6),D7      
  
0000000C: 42A7            ‘B.’            CLR.L    -(A7)             
  
0000000E: A975            ‘.u’            _TickCount                 
    ; A975
00000010: 2A1F            ‘*.’            MOVE.L   (A7)+,D5          
  
00000012: 7C01            ‘|.’            MOVEQ    #$01,D6           
  
00000014: 6076            ‘`v’            BRA.S    *+$0078           
  ; 0000008C
00000016: 7001            ‘p.’            MOVEQ    #$01,D0           
  
00000018: B047            ‘.G’            CMP.W    D7,D0             
  
0000001A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000001E
0000001C: 606C            ‘`l’            BRA.S    *+$006E           
  ; 0000008A
0000001E: 7002            ‘p.’            MOVEQ    #$02,D0           
  
00000020: B047            ‘.G’            CMP.W    D7,D0             
  
00000022: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000026
00000024: 6064            ‘`d’            BRA.S    *+$0066           
  ; 0000008A
00000026: 7003            ‘p.’            MOVEQ    #$03,D0           
  
00000028: B047            ‘.G’            CMP.W    D7,D0             
  
0000002A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000002E
0000002C: 605C            ‘`\’            BRA.S    *+$005E           
  ; 0000008A
0000002E: 7004            ‘p.’            MOVEQ    #$04,D0           
  
00000030: B047            ‘.G’            CMP.W    D7,D0             
  
00000032: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000036
00000034: 6054            ‘`T’            BRA.S    *+$0056           
  ; 0000008A
00000036: 7005            ‘p.’            MOVEQ    #$05,D0           
  
00000038: B047            ‘.G’            CMP.W    D7,D0             
  
0000003A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000003E
0000003C: 604C            ‘`L’            BRA.S    *+$004E           
  ; 0000008A
0000003E: 7006            ‘p.’            MOVEQ    #$06,D0           
  
00000040: B047            ‘.G’            CMP.W    D7,D0             
  
00000042: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000046
00000044: 6044            ‘`D’            BRA.S    *+$0046           
  ; 0000008A
00000046: 7007            ‘p.’            MOVEQ    #$07,D0           
  
00000048: B047            ‘.G’            CMP.W    D7,D0             
  
0000004A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000004E
0000004C: 603C            ‘`<‘            BRA.S    *+$003E           
  ; 0000008A
0000004E: 7008            ‘p.’            MOVEQ    #$08,D0           
  
00000050: B047            ‘.G’            CMP.W    D7,D0             
  
00000052: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000056
00000054: 6034            ‘`4’            BRA.S    *+$0036           
  ; 0000008A
00000056: 7009            ‘p.’            MOVEQ    #$09,D0           
  
00000058: B047            ‘.G’            CMP.W    D7,D0             
  
0000005A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000005E
0000005C: 602C            ‘`,’            BRA.S    *+$002E           
  ; 0000008A
0000005E: 700A            ‘p.’            MOVEQ    #$0A,D0           
  
00000060: B047            ‘.G’            CMP.W    D7,D0             
  
00000062: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000066
00000064: 6024            ‘`$’            BRA.S    *+$0026           
  ; 0000008A
00000066: 700B            ‘p.’            MOVEQ    #$0B,D0           
  
00000068: B047            ‘.G’            CMP.W    D7,D0             
  
0000006A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000006E
0000006C: 601C            ‘`.’            BRA.S    *+$001E           
  ; 0000008A
0000006E: 700C            ‘p.’            MOVEQ    #$0C,D0           
  
00000070: B047            ‘.G’            CMP.W    D7,D0             
  
00000072: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000076
00000074: 6014            ‘`.’            BRA.S    *+$0016           
  ; 0000008A
00000076: 700D            ‘p.’            MOVEQ    #$0D,D0           
  
00000078: B047            ‘.G’            CMP.W    D7,D0             
  
0000007A: 6602            ‘f.’            BNE.S    *+$0004           
  ; 0000007E
0000007C: 600C            ‘`.’            BRA.S    *+$000E           
  ; 0000008A
0000007E: 700E            ‘p.’            MOVEQ    #$0E,D0           
  
00000080: B047            ‘.G’            CMP.W    D7,D0             
  
00000082: 6602            ‘f.’            BNE.S    *+$0004           
  ; 00000086
00000084: 6004            ‘`.’            BRA.S    *+$0006           
  ; 0000008A
00000086: 700F            ‘p.’            MOVEQ    #$0F,D0           
  
00000088: B047            ‘.G’            CMP.W    D7,D0             
  
0000008A: 5286            ‘R.’            ADDQ.L   #$1,D6            
  
0000008C: 0C86 000F 4240  ‘....B@’        CMPI.L   #$000F4240,D6     
  
00000092: 6F82            ‘o.’            BLE.S    *-$007C           
  ; 00000016
00000094: 42A7            ‘B.’            CLR.L    -(A7)             
  
00000096: A975            ‘.u’            _TickCount                 
    ; A975
00000098: 281F            ‘(.’            MOVE.L   (A7)+,D4          
  
0000009A: 2004            ‘ .’            MOVE.L   D4,D0             
  
0000009C: 9085            ‘..’            SUB.L    D5,D0             
  
0000009E: 2D40 FFE2       ‘-@..’          MOVE.L   D0,-$001E(A6)     
  
000000A2: 486E FFE2       ‘Hn..’          PEA      -$001E(A6)        
  
000000A6: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
000000AA: 3F3C 280E       ‘?<(.’          MOVE.W   #$280E,-(A7)      
  
000000AE: A9EB            ‘..’            _FP68K                     
  ; A9EB
000000B0: 487A 00B8       ‘Hz..’          PEA      *+$00BA           
  ; 0000016A
000000B4: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
000000B8: 3F3C 0006       ‘?<..’          MOVE.W   #$0006,-(A7)      
  
000000BC: A9EB            ‘..’            _FP68K                     
  ; A9EB
000000BE: 486E FFE6       ‘Hn..’          PEA      -$001A(A6)        
  
000000C2: 486E FFF4       ‘Hn..’          PEA      -$000C(A6)        
  
000000C6: 3F3C 1010       ‘?<..’          MOVE.W   #$1010,-(A7)      
  
000000CA: A9EB            ‘..’            _FP68K                     
  ; A9EB
000000CC: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000D0: 487A 0080       ‘Hz..’          PEA      *+$0082           
  ; 00000152
000000D4: 4267            ‘Bg’            CLR.W    -(A7)             
  
000000D6: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
000000DA: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000DE: 3007            ‘0.’            MOVE.W   D7,D0             
  
000000E0: 48C0            ‘H.’            EXT.L    D0                
  
000000E2: 2F00            ‘/.’            MOVE.L   D0,-(A7)          
  
000000E4: 3F3C 0002       ‘?<..’          MOVE.W   #$0002,-(A7)      
  
000000E8: 4EAD 0182       ‘N...’          JSR      $0182(A5)         
  
000000EC: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000F0: 487A 005A       ‘Hz.Z’          PEA      *+$005C           
  ; 0000014C
000000F4: 4267            ‘Bg’            CLR.W    -(A7)             
  
000000F6: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
000000FA: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
000000FE: 486E FFF4       ‘Hn..’          PEA      -$000C(A6)        
  
00000102: 2F3C 0003 0000  ‘/<....’        MOVE.L   #$00030000,-(A7)  
  
00000108: 4EAD 0082       ‘N...’          JSR      $0082(A5)         
  
0000010C: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
00000110: 487A 0030       ‘Hz.0’          PEA      *+$0032           
  ; 00000142
00000114: 4267            ‘Bg’            CLR.W    -(A7)             
  
00000116: 4EAD 018A       ‘N...’          JSR      $018A(A5)         
  
0000011A: 486D FDE4       ‘Hm..’          PEA      -$021C(A5)        
  
0000011E: 4EAD 017A       ‘N..z’          JSR      $017A(A5)         
  
00000122: 4CDF 00F0       ‘L...’          MOVEM.L  (A7)+,D4-D7       
  
00000126: 4E5E            ‘N^’            UNLK     A6                
  
00000128: 205F            ‘ _’            MOVEA.L  (A7)+,A0          
  
0000012A: 544F            ‘TO’            ADDQ.W   #$2,A7            
  
0000012C: 4ED0            ‘N.’            JMP      (A0)              
  
0000012E: 9154            ‘.T’            SUB.W    D0,(A4)           
  
00000130: 4553            ‘ES’            DC.W     $4553             
  ; ????
00000132: 545F            ‘T_’            ADDQ.W   #$2,(A7)+         
  
00000134: 4946            ‘IF’            DC.W     $4946             
  ; ????
00000136: 5F54            ‘_T’            SUBQ.W   #$7,(A4)          
  
00000138: 4845            ‘HE’            SWAP     D5                
  
0000013A: 4E5F            ‘N_’            UNLK     A7                
  
0000013C: 454C            ‘EL’            DC.W     $454C             
  ; ????
0000013E: 5345            ‘SE’            SUBQ.W   #$1,D5            
  
00000140: 0032            ‘.2’            DC.W     $0032             
  ; ????
00000142: 0820 7365       ‘. se’          DC.W     $0820,$7365       
  ; BTST #$??65,-(A0)
00000146: 636F            ‘co’            BLS.S    *+$0071           
  ; 000001B7
00000148: 6E64            ‘nd’            BGT.S    *+$0066           
  ; 000001AE
0000014A: 7300            ‘s.’            DC.W     $7300             
  ; ????
0000014C: 045D 203A       ‘.] :’          SUBI.W   #$203A,(A5)+      
  ; ‘ :’
00000150: 2000            ‘ .’            MOVE.L   D0,D0             
  
00000152: 1720            ‘. ‘            MOVE.B   -(A0),-(A3)       
  
00000154: 2049            ‘ I’            MOVEA.L  A1,A0             
  
00000156: 462D 5448       ‘F-TH’          NOT.B    $5448(A5)         
  
0000015A: 454E            ‘EN’            DC.W     $454E             
  ; ????
0000015C: 2D45 4C53       ‘-ELS’          MOVE.L   D5,$4C53(A6)      
  
00000160: 4520            ‘E ‘            CHK.L    -(A0),D2          
  
00000162: 5465            ‘Te’            ADDQ.W   #$2,-(A5)         
  
00000164: 7374            ‘st’            DC.W     $7374             
  ; ????
00000166: 205B            ‘ [‘            MOVEA.L  (A3)+,A0          
  
00000168: 623D            ‘b=’            BHI.S    *+$003F           
  ; 000001A7
0000016A: 4004            ‘@.’            NEGX.B   D4                
  
0000016C: F000            ‘..’            DC.W     $F000             
  ; ????
0000016E: 0000 0000       ‘....’          ORI.B    #$00,D0           
  
00000172: 0000 4600       ‘..F.’          DC.W     $0000,$4600       
  ; ORI.B #$??00,D0

FINIS

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Mellel 3.5.5 - The word processor for sc...
Mellel is the leading word processor for OS X and has been widely considered the industry standard since its inception. Mellel focuses on writers and scholars for technical writing and multilingual... Read more
Bookends 12.8.3 - Reference management a...
Bookends is a full-featured bibliography/reference and information-management system for students and professionals. Bookends uses the cloud to sync reference libraries on all the Macs you use.... Read more
Carbon Copy Cloner 4.1.18 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
Hopper Disassembler 4.2.14- - Binary dis...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
BetterTouchTool 2.291 - Customize Multi-...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
Sound Studio 4.8.11 - Robust audio recor...
Sound Studio lets you easily record and professionally edit audio on your Mac. Easily rip vinyls and digitize cassette tapes, or record lectures and voice memos. Prepare for live shows with live... Read more
Sound Studio 4.8.11 - Robust audio recor...
Sound Studio lets you easily record and professionally edit audio on your Mac. Easily rip vinyls and digitize cassette tapes, or record lectures and voice memos. Prepare for live shows with live... Read more
BetterTouchTool 2.291 - Customize Multi-...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
Carbon Copy Cloner 4.1.18 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
Hopper Disassembler 4.2.14- - Binary dis...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more

The best 2v2 card combos in Clash Royale
2v2 is making it's grand return toClash Royalequite soon. 2v2 has quickly become one of the game's most popular gameplay modes, though they still have yet to make it a permanent fixture in the game. 2v2 is exciting and adds some new flavor to... | Read more »
The best games we played this week - Aug...
Another busy week has come to a close. We played a lot of excellent games this week and now it's time to look back and reflect on some our favorites. Here are our picks for the week of August 18. [Read more] | Read more »
War Wings beginner's guide - how to...
War Wings is the newest project from well-established game maker Miniclip. It's a World War II aerial dogfighting game with loads of different airplane models to unlock and battle. The game offers plenty of single player and multiplayer action. We... | Read more »
How to win every 2v2 battle in Clash Roy...
2v2 is coming back to Clash Royale in a big way. Although it's only been available for temporary periods of time, 2v2 has seen a hugely positive fan response, with players clamoring for more team-based gameplay. Soon we'll get yet another taste of... | Read more »
Roll to Win with Game of Dice’s new upda...
Joycity’s hit Game of Dice gets a big new update this week, introducing new maps, mechanics, and even costumes. The update sets players loose on an exciting new map, The Cursed Tower, that allows folks to use special Runes mid-match. If you feel... | Read more »
Bottom of the 9th (Games)
Bottom of the 9th 1.0.1 Device: iOS iPhone Category: Games Price: $4.99, Version: 1.0.1 (iTunes) Description: Play the most exciting moment of baseball in this fast-paced dice and card game! | Read more »
The best apps for viewing the solar ecli...
If you somehow missed the news, many parts of the United States will be witness to a total solar eclipse on August 21 for the first time in over 90 years. It'll be possible to see the eclipse in at least some capacity throughout the continental U... | Read more »
The 5 best mobile survival games
Games like ARK: Survival Evolved and Conan Exiles have taken the world of gaming by storm. The market is now flooded with hardcore survival games that send players off into the game's world with nothing but maybe the clothes on their back. Never... | Read more »
Portal Walk (Games)
Portal Walk 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Portal Walk is adventure and relaxing platform game about Eugene. Eugene stuck between worlds and trying to find way back home.... | Read more »
Technobabylon (Games)
Technobabylon 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: City of Newton, 2087. Genetic engineering is the norm, the addictive Trance has replaced almost any need for human interaction,... | Read more »

Price Scanner via MacPrices.net

15-inch 2.2GHz Retina MacBook Pro, Apple refu...
Apple has Certified Refurbished 2015 15″ 2.2GHz Retina MacBook Pros available for $1699. That’s $300 off MSRP, and it’s the lowest price available for a 15″ MacBook Pro. An Apple one-year warranty is... Read more
Apple refurbished Mac minis available startin...
Apple has Certified Refurbished Mac minis available starting at $419. Apple’s one-year warranty is included with each mini, and shipping is free: – 1.4GHz Mac mini: $419 $80 off MSRP – 2.6GHz Mac... Read more
Apple refurbished iPad Pros available startin...
Apple has Certified Refurbished 2016 12″ WiFi iPad Pros available starting at $589. An Apple one-year warranty is included with each model, and shipping is free: – 32GB 12″ iPad Pro WiFi: $589... Read more
Weekend sale: 13-inch MacBook Pros for up to...
Amazon has new 2017 13″ MacBook Pros on sale today for up to $200 off MSRP, each including free shipping: – 13″ 3.1GHz/256GB Space Gray MacBook Pro (MPXV2LL/A): $1599.99 $200 off MSRP – 13″ 3.1GHz/... Read more
Back To School With The Edge Desk All-in-one...
Back to school is just around the corner, and the ergonomically correct Edge Desk all-in-one portable kneeling desk is ideal for students living in dorms and small apartments, Edge Desk features:... Read more
Norton Core Secure Wi-Fi Router Now Available...
First introduced at the 2017 Consumer Electronics Show (CES), Norton Core, a secure, high-performance Wi-Fi router, fundamentally changed the concept of Wi-Fi routers by making security the primary... Read more
ViewSonic Adds New 27-inch 4K UHD Monitor to...
ViewSonic Corp. has introduced the VP2785-4K, a 27-inch 4K UHD (3840×2160) monitor that delivers precise and consistent color representation and performance to ensure incredible image quality. Built... Read more
Apple now offering Certified Refurbished 2017...
Apple is now offering Certified Refurbished 2017 27″ iMacs for up to $350 off original MSRP. Apple’s one-year warranty is standard, and shipping is free. The following models are available: – 27″ 3.... Read more
13-inch 2.3GHz MacBook Pros on sale for $100...
Amazon has the new 2017 13″ 2.3GHz MacBook Pros on sale today for $100 off MSRP, each including free shipping: – 13″ 2.3GHz/128GB Space Gray MacBook Pro (MPXQ2LL/A): $1199.99 $100 off MSRP – 13″ 2.... Read more
Clearance 2016 13-inch MacBook Airs available...
B&H Photo has clearance 2016 13″ MacBook Airs available for up to $200 off original MSRP. Shipping is free, and B&H charges NY & NJ sales tax only: – 13″ 1.6GHz/128GB MacBook Air (MMGF2LL... Read more

Jobs Board

Development Operations and Site Reliability E...
Development Operations and Site Reliability Engineer, Apple Payment Gateway Job Number: 57572631 Santa Clara Valley, California, United States Posted: Jul. 27, 2017 Read more
Frameworks Engineering Manager, *Apple* Wat...
Frameworks Engineering Manager, Apple Watch Job Number: 41632321 Santa Clara Valley, California, United States Posted: Jun. 15, 2017 Weekly Hours: 40.00 Job Summary Read more
Map Quality Analyst Lead, *Apple* Maps Eval...
…a team of subject matter experts measuring the quality of a range of Apple Maps algorithms, such as Map search, recommendations, and routing. Our group works with Read more
Business Development Manager, *Apple* Pay -...
Job Summary Apple Pay is seeking an experienced Business Development professional to join the Apple Pay team to develop partnerships and strategic alliances with Read more
Information Systems Engineer, *Apple* Retai...
Job Summary Do you have a passion for the technology and systems that make Apple amazing? Are you interested in joining IS&T Retail on what they do best? This is an Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.