[57] | 1 | ; File name : Menupage.asm
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| 2 | ; Project name : XTIDE Universal BIOS Configurator v2
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| 3 | ; Created date : 5.10.2010
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| 4 | ; Last update : 1.11.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Functions for accessing MENUPAGE structs.
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| 7 |
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| 8 | ; Section containing code
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| 9 | SECTION .text
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| 10 |
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| 11 | ;--------------------------------------------------------------------
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| 12 | ; Menupage_ChangeToNewMenupageInDSSI
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| 13 | ; Parameters:
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| 14 | ; DS:SI: Ptr to new MENUPAGE
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| 15 | ; SS:BP: Menu handle
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| 16 | ; Returns:
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| 17 | ; Nothing
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| 18 | ; Corrupts registers:
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| 19 | ; AX, DI
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| 20 | ;--------------------------------------------------------------------
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| 21 | ALIGN JUMP_ALIGN
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| 22 | Menupage_ChangeToNewMenupageInDSSI:
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| 23 | mov di, si
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| 24 | call Menupage_SetActiveMenupageFromDSDI
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| 25 | call Menupage_GetVisibleMenuitemsToAXfromDSDI
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| 26 | CALL_MENU_LIBRARY SetTotalItemsFromAX
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| 27 | xor ax, ax
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| 28 | CALL_MENU_LIBRARY HighlightItemFromAX
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| 29 | CALL_MENU_LIBRARY RefreshWindow
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| 30 | ret
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| 31 |
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| 32 |
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| 33 | ;--------------------------------------------------------------------
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| 34 | ; Menupage_SetActiveMenupageFromDSDI
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| 35 | ; Parameters:
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| 36 | ; DS:DI: Ptr to MENUPAGE to set active
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| 37 | ; SS:BP: Menu handle
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| 38 | ; Returns:
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| 39 | ; Nothing
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| 40 | ; Corrupts registers:
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| 41 | ; AX, DI
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| 42 | ;--------------------------------------------------------------------
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| 43 | ALIGN JUMP_ALIGN
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| 44 | Menupage_SetActiveMenupageFromDSDI:
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| 45 | mov [g_cfgVars+CFGVARS.pMenupage], di
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| 46 | ret
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| 47 |
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| 48 |
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| 49 | ;--------------------------------------------------------------------
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| 50 | ; Menupage_GetActiveMenupageToDSDI:
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| 51 | ; Parameters:
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| 52 | ; SS:BP: Menu handle
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| 53 | ; Returns:
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| 54 | ; DS:DI: Ptr to MENUPAGE
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| 55 | ; Corrupts registers:
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| 56 | ; Nothing
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| 57 | ;--------------------------------------------------------------------
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| 58 | ALIGN JUMP_ALIGN
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| 59 | Menupage_GetActiveMenupageToDSDI:
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| 60 | push cs
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| 61 | pop ds
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| 62 | mov di, [g_cfgVars+CFGVARS.pMenupage]
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| 63 | ret
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| 64 |
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| 65 |
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| 66 | ;--------------------------------------------------------------------
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| 67 | ; Menupage_GetVisibleMenuitemsToAXfromDSDI
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| 68 | ; Parameters:
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| 69 | ; DS:DI: Ptr to MENUPAGE
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| 70 | ; Returns:
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| 71 | ; AX: Number of visible MENUITEMs in MENUPAGE
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| 72 | ; Corrupts registers:
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| 73 | ; BX, CX
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| 74 | ;--------------------------------------------------------------------
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| 75 | ALIGN JUMP_ALIGN
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| 76 | Menupage_GetVisibleMenuitemsToAXfromDSDI:
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| 77 | xor ax, ax
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| 78 | mov cx, [di+MENUPAGE.wMenuitems]
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| 79 | lea bx, [di+MENUPAGE.rgMenuitem]
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| 80 |
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| 81 | ALIGN JUMP_ALIGN
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| 82 | .CheckVisibilityFromNextMenuitem:
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| 83 | test BYTE [bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE
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| 84 | jz SHORT .PrepareToLoop
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| 85 | inc ax
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| 86 | .PrepareToLoop:
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| 87 | add bx, BYTE MENUITEM_size
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| 88 | loop .CheckVisibilityFromNextMenuitem
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| 89 | ret
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| 90 |
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| 91 |
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| 92 | ;--------------------------------------------------------------------
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| 93 | ; Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI
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| 94 | ; Parameters:
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| 95 | ; CX: nth visible MENUITEM to find
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| 96 | ; DS:DI: Ptr to MENUPAGE
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| 97 | ; Returns:
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| 98 | ; DS:SI: Ptr to CXth visible MENUITEM
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| 99 | ; CF: Set if MENUITEM found
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| 100 | ; Cleared if MENUITEM not found
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| 101 | ; Corrupts registers:
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| 102 | ; AX, CX
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| 103 | ;--------------------------------------------------------------------
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| 104 | ALIGN JUMP_ALIGN
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| 105 | Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI:
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| 106 | mov ax, [di+MENUPAGE.wMenuitems]
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| 107 | cmp cx, ax
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| 108 | jae SHORT .MenuitemNotFound
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| 109 | xchg ax, cx
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| 110 | inc ax
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| 111 | lea si, [di+MENUPAGE.rgMenuitem]
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| 112 | ALIGN JUMP_ALIGN
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| 113 | .CheckNextMenuitem:
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| 114 | test BYTE [si+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE
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| 115 | jz SHORT .PrepareToLoop
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| 116 | dec ax
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| 117 | jz SHORT .MenuitemFound
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| 118 | .PrepareToLoop:
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| 119 | add si, BYTE MENUITEM_size
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| 120 | loop .CheckNextMenuitem
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| 121 | .MenuitemNotFound:
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| 122 | clc
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| 123 | ret
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| 124 | ALIGN JUMP_ALIGN
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| 125 | .MenuitemFound:
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| 126 | stc
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| 127 | ret
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