----------------------------------------------------------------------------
                      [NEW.....] VFP 9.0 FIX - THE VFPLMM TERM IN THE CONFIGURATION FILE
                                 January 2024
                 ----------------------------------------------------------------------------
                                     CCB



1. THE VFPLMM TERM:

     VFPLMM - Enables or disables using VFPLMM memory

     Enables or disables using VFPLMM memory.

     VFPLMM = ON | OFF

     Parameters
     ON
     Enables using VFPLMM memory. ON is the startup default for Visual FoxPro Advanced 10.2 or later.
     OFF
     Disables using VFPLMM memory. OFF is the startup default for Visual FoxPro Advanced 10.0 and 10.1.

     Remarks
     If we set VFPLMM = ON, Visual FoxPro Advanced 10.2 or later version will use Visual FoxPro Large Memory Manager (VFPLMM).
     If we set VFPLMM = OFF, Visual FoxPro Advanced 10.2 or later version will not use Visual FoxPro Large Memory Manager (VFPLMM).

     For some performance reasons, recommend to set VFPLMM = OFF on Windows 10 1703 or later (Windows enables Intel Software Guard Extensions).

     If Visual FoxPro Advanced 10.2 or later version can use Visual FoxPro Large Memory Manager (VFPLMM),
     when Visual FoxPro Advanced 32-bit 10.2 or later version is running on Windows 32-bit system, it can use 4 GB memory (double of VFP 9.0),
     when Visual FoxPro Advanced 32-bit 10.2 or later version is running on Windows 64-bit system, it can use 32 GB (maximum) memory,
     when Visual FoxPro Advanced 64-bit 10.2 or later version is running on Windows 64-bit system, it can use 32 GB (maximum) memory.


2. CAUSE:

     There are some BUGs in the following code.


3. RESOLUTION:

     We can write some code to fix the BUG.

     Fun40a45d :: ; proc near
             push ebp                                                        ;0x0040a45d :        55
             lea ebp ,  dword ptr [ esp - 104 ]                              ;0x0040a45e :        8d6c2498
             sub esp , 0454h                                                 ;0x0040a462 :        81ec54040000
             mov eax ,  dword ptr [ Data937090 ]                             ;0x0040a468 :        a190709300
             mov  ecx , dword ptr [ ebp + 112 ]                              ;0x0040a46d :        8b4d70
             push ebx                                                        ;0x0040a470 :        53
             push esi                                                        ;0x0040a471 :        56
             mov  esi , dword ptr [ ebp + 116 ]                              ;0x0040a472 :        8b7574
             mov  dword ptr [ ebp + 100 ] , eax                              ;0x0040a475 :        894564
             lea eax ,  dword ptr [ esi + 0642h ]                            ;0x0040a478 :        8d8642060000
             mov  dword ptr [ ebp + 0FFFFFD04h ] , eax                       ;0x0040a47e :        898504fdffff
             push edi                                                        ;0x0040a484 :        57
             lea eax ,  dword ptr [ esi + 0A5Ch ]                            ;0x0040a485 :        8d865c0a0000
             mov  dword ptr [ ebp + 0FFFFFD24h ] , eax                       ;0x0040a48b :        898524fdffff
             xor ebx , ebx                                                   ;0x0040a491 :        33db
             xor eax , eax                                                   ;0x0040a493 :        33c0
             inc eax                                                         ;0x0040a495 :        40
             push ebx                                                        ;0x0040a496 :        53
             push eax                                                        ;0x0040a497 :        50
             mov  dword ptr [ ebp + 0FFFFFD10h ] , eax                       ;0x0040a498 :        898510fdffff
             push ebx                                                        ;0x0040a49e :        53
             lea eax ,  dword ptr [ ebp + 0FFFFFF38h ]                       ;0x0040a49f :        8d8538ffffff
             push eax                                                        ;0x0040a4a5 :        50
             mov  dword ptr [ ebp + 0FFFFFD28h ] , ebx                       ;0x0040a4a6 :        899d28fdffff
             mov  dword ptr [ ebp + 0FFFFFF58h ] , ecx                       ;0x0040a4ac :        898d58ffffff
             call Fun430428                                                  ;0x0040a4b2 :        e8715f0200
             cmp eax , 04h                                                   ;0x0040a4b7 :        83f804
             jne Label40a660                                                 ;0x0040a4ba :        0f85a0010000
             lea ecx ,  dword ptr [ ebp + 0FFFFFF60h ]                       ;0x0040a4c0 :        8d8d60ffffff
             mov edx , 0100h                                                 ;0x0040a4c6 :        ba00010000
             lea eax ,  dword ptr [ ebp + 0FFFFFE38h ]                       ;0x0040a4cb :        8d8538feffff
             call Fun42c33e                                                  ;0x0040a4d1 :        e8681e0200
             cmp  byte ptr [ ebp + 0FFFFFF60h ] , 05Fh                       ;0x0040a4d6 :        80bd60ffffff5f
             jne Label40a540                                                 ;0x0040a4dd :        7561
             lea edi ,  dword ptr [ ebp + 0FFFFFF60h ]                       ;0x0040a4df :        8dbd60ffffff
             call Fun43099a                                                  ;0x0040a4e5 :        e8b0640200
             mov edi , eax                                                   ;0x0040a4ea :        8bf8
             lea eax ,  dword ptr [ edi - 36 ]                               ;0x0040a4ec :        8d47dc
             cmp eax , 034h                                                  ;0x0040a4ef :        83f834
             ja Label40a540                                                  ;0x0040a4f2 :        774c
             movzx eax ,byte ptr [ eax + offset Data4134f1 ]                          ;0x0040a4f4 :        0fb680f1344100
             jmp  dword ptr [ 4 * eax + offset DataPtr4134e9 ]                           ;0x0040a4fb :        ff2485e9344100

     Label40a502 ::
             cmp  dword ptr [ ebp + 120 ] , ebx                              ;0x0040a502 :        395d78
             jne Label5d60f1                                                 ;0x0040a505 :        0f85e6bb1c00

     Label40a50b ::
             xor eax , eax                                                   ;0x0040a50b :        33c0
             lea ecx ,  dword ptr [ ebp + 0FFFFFF38h ]                       ;0x0040a50d :        8d8d38ffffff
             call Fun43d764                                                  ;0x0040a513 :        e84c320300
             lea eax ,  dword ptr [ ebp + 0FFFFFF60h ]                       ;0x0040a518 :        8d8560ffffff
             push eax                                                        ;0x0040a51e :        50
             mov eax , edi                                                   ;0x0040a51f :        8bc7
             call Fun409f9c                                                  ;0x0040a521 :        e876faffff
             mov eax , edi                                                   ;0x0040a526 :        8bc7
             sub eax , 04Dh                                                  ;0x0040a528 :        83e84d
             je Label5d613c                                                  ;0x0040a52b :        0f840bbc1c00
             dec eax                                                         ;0x0040a531 :        48
             je Label5d611c                                                  ;0x0040a532 :        0f84e4bb1c00

     Label40a538 ::
             xor eax , eax                                                   ;0x0040a538 :        33c0
             inc eax                                                         ;0x0040a53a :        40
             jmp Label40a666                                                 ;0x0040a53b :        e926010000

     Label40a540 ::
             cmp  dword ptr [ ebp + 0FFFFFF3Ch ] , 06D1h                     ;0x0040a540 :        81bd3cffffffd1060000
             je Label5d615c                                                  ;0x0040a54a :        0f840cbc1c00
             lea eax ,  dword ptr [ ebp + 0FFFFFF40h ]                       ;0x0040a550 :        8d8540ffffff
             lea ecx ,  dword ptr [ ebp + 0FFFFFF60h ]                       ;0x0040a556 :        8d8d60ffffff
             call Fun415309                                                  ;0x0040a55c :        e8a8ad0000
             cmp eax , 07h                                                   ;0x0040a561 :        83f807
             mov  dword ptr [ ebp + 0FFFFFD18h ] , eax                       ;0x0040a564 :        898518fdffff
             je Label40a5e2                                                  ;0x0040a56a :        7476
             cmp eax , 067h                                                  ;0x0040a56c :        83f867
             je Label40a5e2                                                  ;0x0040a56f :        7471
             cmp eax , 030h                                                  ;0x0040a571 :        83f830
             je Label5d61b3                                                  ;0x0040a574 :        0f8439bc1c00
             mov  edi , strncmp                                ;0x0040a57a :        8b3dcc799100
             pushd 04h                                                       ;0x0040a580 :        6a04
             lea eax ,  dword ptr [ ebp + 0FFFFFE38h ]                       ;0x0040a582 :        8d8538feffff
             pushd offset Data9191dc                                                  ;0x0040a588 :        68dc919100
             push eax                                                        ;0x0040a58d :        50
             call edi                                                        ;0x0040a58e :        ffd7
             add esp , 0Ch                                                   ;0x0040a590 :        83c40c
             test eax , eax                                                  ;0x0040a593 :        85c0
             je Label5d61fb                                                  ;0x0040a595 :        0f8460bc1c00
             pushd 05h                                                       ;0x0040a59b :        6a05
             lea eax ,  dword ptr [ ebp + 0FFFFFE38h ]                       ;0x0040a59d :        8d8538feffff
             pushd offset Data91cc84                                                  ;0x0040a5a3 :        6884cc9100
             push eax                                                        ;0x0040a5a8 :        50
             call edi                                                        ;0x0040a5a9 :        ffd7
             add esp , 0Ch                                                   ;0x0040a5ab :        83c40c
             test eax , eax                                                  ;0x0040a5ae :        85c0
             je Label5d61fb                                                  ;0x0040a5b0 :        0f8445bc1c00

     Label40a5b6 ::
             cmp  dword ptr [ ebp + 120 ] , ebx                              ;0x0040a5b6 :        395d78
             je Label40a5e2                                                  ;0x0040a5b9 :        7427


     ;
     ;                 -----------------------------------------------------------------
     ;                      VFP 9.0 FIX - THE VFPLMM TERM IN THE CONFIGURATION FILE
     ;                                  August 2023
     ;                 -----------------------------------------------------------------
     ;                                     CCB
     ;
     ; The VFPLMM term in the configuration file.
     ;
     ; 2023/8/21, by ccb
     ;

             lea ecx ,  dword ptr [ ebp + 0FFFFFF60h ]
     vfpa_config_vfplmm_start:
             cmp byte ptr [ecx] , 056h ;; V
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+1] , 046h ;; F
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+2] , 050h ;; P
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+3] , 04Ch ;; L
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+4] , 04Dh ;; M
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+5] , 04Dh ;; M
             jne vfpa_config_vfplmm_end
             cmp byte ptr [ecx+6] , 000h
             jne vfpa_config_vfplmm_end
             push ebx
             xor edi , edi
             inc edi
             push edi
             push ebx
             lea eax ,  dword ptr [ ebp + 0FFFFFF38h ]
             push eax
             call Fun430428
             cmp eax , edi
             jne Label5d6256
             cmp  dword ptr [ ebp + 0FFFFFF3Ch ] , 010h
             jne Label5d6256
             lea eax ,  dword ptr [ ebp + 0FFFFFF38h ]
             lea edi ,  dword ptr [ ebp + 0FFFFFD0Ch ]
             call Fun87dfe0
             cmp eax , 01h
             jne vfpa_config_vfplmm_default
             xor eax , eax
             cmp dword ptr [ ebp + 0FFFFFD0Ch ] , 00h
             setne al
             IF VFPA_VERSION GE 102
             mov dword ptr vfpa_config_vfplmm_data,eax
             ELSE
             mov dword ptr vfpa_config_vfplmm_data,00h
             ENDIF
             jmp Label40a660
     vfpa_config_vfplmm_default:
             cmp  dword ptr [ ebp + 0FFFFFF3Ch ] , 0Eh
             jne Label5d6256
             IF VFPA_VERSION GE 102
             mov dword ptr vfpa_config_vfplmm_data,01h
             ELSE
             mov dword ptr vfpa_config_vfplmm_data,00h
             ENDIF
             jmp Label40a660
     vfpa_config_vfplmm_end:


             push ebx                                                        ;0x0040a5bb :        53
             xor edi , edi                                                   ;0x0040a5bc :        33ff
             inc edi                                                         ;0x0040a5be :        47
             push edi                                                        ;0x0040a5bf :        57
             push ebx                                                        ;0x0040a5c0 :        53
             lea eax ,  dword ptr [ ebp + 0FFFFFF38h ]                       ;0x0040a5c1 :        8d8538ffffff
             push eax                                                        ;0x0040a5c7 :        50
             call Fun430428                                                  ;0x0040a5c8 :        e85b5e0200
             cmp eax , edi                                                   ;0x0040a5cd :        3bc7
             jne Label5d6256                                                 ;0x0040a5cf :        0f8581bc1c00
             cmp  dword ptr [ ebp + 0FFFFFF3Ch ] , 010h                      ;0x0040a5d5 :        83bd3cffffff10
             jne Label5d6256                                                 ;0x0040a5dc :        0f8574bc1c00

     Label40a5e2 ::
             mov  eax , dword ptr [ ebp + 0FFFFFD18h ]                       ;0x0040a5e2 :        8b8518fdffff
             cmp eax , 0F6h                                                  ;0x0040a5e8 :        3df6000000
             ja Label5d6273                                                  ;0x0040a5ed :        0f8780bc1c00
             movzx eax ,byte ptr [ eax + offset Data413716 ]                          ;0x0040a5f3 :        0fb68016374100
             jmp  dword ptr [ 4 * eax + offset DataPtr413526 ]                           ;0x0040a5fa :        ff248526354100

     Label40a601 ::
             lea edx ,  dword ptr [ ebp + 0FFFFFD00h ]                       ;0x0040a601 :        8d9500fdffff
             lea eax ,  dword ptr [ ebp + 0FFFFFC68h ]                       ;0x0040a607 :        8d8568fcffff
             call Fun42c27f                                                  ;0x0040a60d :        e86d1c0200
             push ebx                                                        ;0x0040a612 :        53
             push eax                                                        ;0x0040a613 :        50
             call Fun42c2be                                                  ;0x0040a614 :        e8a51c0200
             cmp eax , ebx                                                   ;0x0040a619 :        3bc3
             pop ecx                                                         ;0x0040a61b :        59
             pop ecx                                                         ;0x0040a61c :        59
             jne Label40a64e                                                 ;0x0040a61d :        752f
             lea eax ,  dword ptr [ ebp + 0FFFFFD1Ch ]                       ;0x0040a61f :        8d851cfdffff
             push eax                                                        ;0x0040a625 :        50
             lea eax ,  dword ptr [ ebp + 0FFFFFF38h ]                       ;0x0040a626 :        8d8538ffffff
             call Fun40a75a                                                  ;0x0040a62c :        e829010000
             test eax , eax                                                  ;0x0040a631 :        85c0
             je Label40a64e                                                  ;0x0040a633 :        7419
             lea eax ,  dword ptr [ ebp + 0FFFFFD1Ch ]                       ;0x0040a635 :        8d851cfdffff
             xor ecx , ecx                                                   ;0x0040a63b :        33c9
             push eax                                                        ;0x0040a63d :        50
             inc ecx                                                         ;0x0040a63e :        41
             call Fun4157c8                                                  ;0x0040a63f :        e884b10000
             mov  eax , dword ptr [ ebp + 116 ]                              ;0x0040a644 :        8b4574
             or  dword ptr [ eax + 0A78h ] , 01h                             ;0x0040a647 :        8388780a000001

     Label40a64e ::
             lea eax ,  dword ptr [ ebp + 0FFFFFD00h ]                       ;0x0040a64e :        8d8500fdffff
             push eax                                                        ;0x0040a654 :        50
             lea eax ,  dword ptr [ ebp + 0FFFFFC68h ]                       ;0x0040a655 :        8d8568fcffff

     Label40a65b ::
             call Fun42d200                                                  ;0x0040a65b :        e8a02b0200

     Label40a660 ::
             mov  eax , dword ptr [ ebp + 0FFFFFD10h ]                       ;0x0040a660 :        8b8510fdffff

     Label40a666 ::
             mov  ecx , dword ptr [ ebp + 100 ]                              ;0x0040a666 :        8b4d64
             call Fun42bf1d                                                  ;0x0040a669 :        e8af180200
             pop edi                                                         ;0x0040a66e :        5f
             pop esi                                                         ;0x0040a66f :        5e
             pop ebx                                                         ;0x0040a670 :        5b
             add ebp , 068h                                                  ;0x0040a671 :        83c568
             leave                                                           ;0x0040a674 :        c9
             ret 010h                                                        ;0x0040a675 :        c21000


4. APPLIES TO:

     VFP 10 (VFP Advanced)


5. REFERENCE WEBSITES:

     1, baiyujia.com:
     http://www.baiyujia.com
     http://www.baiyujia.com/vfpdocuments/f_vfpconfigterms.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix113.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix283.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix284.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix285.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix294.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix296.asp
     http://www.baiyujia.com/vfpdocuments/f_vfp9fix302.asp


6. OTHER:

     For reference only, there is no guarantees.

     Any questions or suggestions, please send me an email at ccb2000@163.com.