[41] | 1 | ; Project name : Assembly Library |
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| 2 | ; Description : Functions for initializing menu system. |
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| 3 | |
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| 4 | ; Section containing code |
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| 5 | SECTION .text |
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| 6 | |
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| 7 | ;-------------------------------------------------------------------- |
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| 8 | ; MenuEvent_InitializeMenuinit |
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| 9 | ; Parameters |
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| 10 | ; SS:BP: Ptr to MENU |
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| 11 | ; Returns: |
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| 12 | ; DS:SI: Ptr to MENU with MENUINIT initialized from user handler |
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| 13 | ; CF: Set if event processed |
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| 14 | ; Cleared if event not processed |
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| 15 | ; Corrupts registers: |
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| 16 | ; AX, BX, DX |
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| 17 | ;-------------------------------------------------------------------- |
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| 18 | ALIGN JUMP_ALIGN |
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| 19 | MenuEvent_InitializeMenuinit: |
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| 20 | push ss |
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| 21 | pop ds |
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| 22 | mov si, bp |
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[183] | 23 | mov bl, MENUEVENT_InitializeMenuinitFromDSSI |
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[41] | 24 | jmp SHORT MenuEvent_SendFromBX |
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| 25 | |
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| 26 | |
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| 27 | ;-------------------------------------------------------------------- |
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| 28 | ; MenuEvent_ExitMenu |
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| 29 | ; Parameters |
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| 30 | ; SS:BP: Ptr to MENU |
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| 31 | ; Returns: |
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[58] | 32 | ; CF: Set to exit from menu |
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| 33 | ; Cleared to cancel exit |
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[41] | 34 | ; Corrupts registers: |
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| 35 | ; AX, BX, DX |
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| 36 | ;-------------------------------------------------------------------- |
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| 37 | ALIGN JUMP_ALIGN |
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| 38 | MenuEvent_ExitMenu: |
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[183] | 39 | mov bl, MENUEVENT_ExitMenu |
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[41] | 40 | jmp SHORT MenuEvent_SendFromBX |
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| 41 | |
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| 42 | |
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| 43 | ;-------------------------------------------------------------------- |
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| 44 | ; MenuEvent_IdleProcessing |
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| 45 | ; Parameters |
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| 46 | ; SS:BP: Ptr to MENU |
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| 47 | ; Returns: |
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| 48 | ; CF: Set if event processed |
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| 49 | ; Cleared if event not processed |
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| 50 | ; Corrupts registers: |
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| 51 | ; AX, BX, DX |
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| 52 | ;-------------------------------------------------------------------- |
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| 53 | ALIGN JUMP_ALIGN |
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| 54 | MenuEvent_IdleProcessing: |
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[183] | 55 | mov bl, MENUEVENT_IdleProcessing |
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[41] | 56 | jmp SHORT MenuEvent_SendFromBX |
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| 57 | |
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| 58 | |
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| 59 | ;-------------------------------------------------------------------- |
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| 60 | ; MenuEvent_RefreshTitle |
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| 61 | ; MenuEvent_RefreshInformation |
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| 62 | ; Parameters |
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[48] | 63 | ; SS:BP: Ptr to MENU |
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[41] | 64 | ; Cursor will be positioned to beginning of window |
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| 65 | ; Returns: |
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| 66 | ; CF: Set if event processed |
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| 67 | ; Cleared if event not processed |
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| 68 | ; Corrupts registers: |
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[48] | 69 | ; AX, CX, BX, DX |
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[41] | 70 | ;-------------------------------------------------------------------- |
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| 71 | ALIGN JUMP_ALIGN |
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| 72 | MenuEvent_RefreshTitle: |
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[183] | 73 | mov bl, MENUEVENT_RefreshTitle |
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[133] | 74 | SKIP2B cx ; mov cx, <next instruction> |
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[48] | 75 | |
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[41] | 76 | MenuEvent_RefreshInformation: |
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[183] | 77 | mov bl, MENUEVENT_RefreshInformation |
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[52] | 78 | mov cx, [bp+MENUINIT.wHighlightedItem] |
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[41] | 79 | jmp SHORT MenuEvent_SendFromBX |
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| 80 | |
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| 81 | |
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| 82 | ;-------------------------------------------------------------------- |
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| 83 | ; MenuEvent_RefreshItemFromCX |
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| 84 | ; Parameters |
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| 85 | ; CX: Index of item to refresh |
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[48] | 86 | ; SS:BP: Ptr to MENU |
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[41] | 87 | ; Cursor has been positioned to the beginning of item line |
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| 88 | ; Returns: |
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| 89 | ; CF: Set if event processed |
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| 90 | ; Cleared if event not processed |
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| 91 | ; Corrupts registers: |
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| 92 | ; AX, BX, DX |
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| 93 | ;-------------------------------------------------------------------- |
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| 94 | ALIGN JUMP_ALIGN |
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| 95 | MenuEvent_RefreshItemFromCX: |
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[183] | 96 | mov bl, MENUEVENT_RefreshItemFromCX |
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[41] | 97 | jmp SHORT MenuEvent_SendFromBX |
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| 98 | |
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| 99 | |
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| 100 | ;-------------------------------------------------------------------- |
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| 101 | ; MenuEvent_HighlightItemFromCX |
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| 102 | ; Parameters |
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| 103 | ; CX: Index of item to highlight |
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[48] | 104 | ; SS:BP: Ptr to MENU |
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[41] | 105 | ; Returns: |
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| 106 | ; Nothing |
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| 107 | ; Corrupts registers: |
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| 108 | ; AX, BX, DX, SI, DI |
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| 109 | ;-------------------------------------------------------------------- |
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| 110 | ALIGN JUMP_ALIGN |
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| 111 | MenuEvent_HighlightItemFromCX: |
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| 112 | mov dx, cx |
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[52] | 113 | xchg dx, [bp+MENUINIT.wHighlightedItem] |
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[41] | 114 | push dx |
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| 115 | |
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[183] | 116 | mov bl, MENUEVENT_ItemHighlightedFromCX |
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[41] | 117 | call MenuEvent_SendFromBX |
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| 118 | |
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| 119 | pop ax |
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| 120 | call MenuText_RefreshItemFromAX |
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[52] | 121 | mov ax, [bp+MENUINIT.wHighlightedItem] |
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[41] | 122 | jmp MenuText_RefreshItemFromAX |
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| 123 | |
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| 124 | |
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| 125 | ;-------------------------------------------------------------------- |
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| 126 | ; MenuEvent_KeyStrokeInAX |
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| 127 | ; Parameters |
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| 128 | ; AL: ASCII character for the key |
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| 129 | ; AH: Keyboard library scan code for the key |
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[48] | 130 | ; SS:BP: Ptr to MENU |
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[41] | 131 | ; Returns: |
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| 132 | ; CF: Set if event processed |
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| 133 | ; Cleared if event not processed |
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| 134 | ; Corrupts registers: |
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| 135 | ; AX, BX, DX |
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| 136 | ;-------------------------------------------------------------------- |
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| 137 | ALIGN JUMP_ALIGN |
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| 138 | MenuEvent_KeyStrokeInAX: |
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[183] | 139 | mov bl, MENUEVENT_KeyStrokeInAX |
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[133] | 140 | SKIP2B dx ; mov dx, <next instruction> |
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[41] | 141 | |
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| 142 | |
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| 143 | ;-------------------------------------------------------------------- |
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| 144 | ; MenuEvent_ItemSelectedFromCX |
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| 145 | ; Parameters |
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| 146 | ; CX: Index of selected item |
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[48] | 147 | ; SS:BP: Ptr to MENU |
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[41] | 148 | ; Returns: |
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| 149 | ; CF: Set if event processed |
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| 150 | ; Cleared if event not processed |
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| 151 | ; Corrupts registers: |
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| 152 | ; AX, BX, DX |
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| 153 | ;-------------------------------------------------------------------- |
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| 154 | MenuEvent_ItemSelectedFromCX: |
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[183] | 155 | mov bl, MENUEVENT_ItemSelectedFromCX |
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[133] | 156 | ; Fall to MenuEvent_SendFromBX |
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[41] | 157 | |
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| 158 | |
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| 159 | ;-------------------------------------------------------------------- |
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| 160 | ; MenuEvent_SendFromBX |
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| 161 | ; Parameters |
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[133] | 162 | ; BL: Menu event to send |
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[41] | 163 | ; SS:BP: Ptr to MENU |
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| 164 | ; Other registers: Event specific parameters |
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| 165 | ; Returns: |
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| 166 | ; AX, DX: Event specific return values |
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| 167 | ; CF: Set if event processed |
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| 168 | ; Cleared if event not processed |
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| 169 | ; Corrupts registers: |
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| 170 | ; BX |
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| 171 | ;-------------------------------------------------------------------- |
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| 172 | ALIGN JUMP_ALIGN |
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| 173 | MenuEvent_SendFromBX: |
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| 174 | push es |
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| 175 | push ds |
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| 176 | push di |
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| 177 | push si |
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| 178 | push cx |
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[133] | 179 | xor bh, bh |
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[41] | 180 | call [bp+MENU.fnEventHandler] |
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| 181 | pop cx |
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| 182 | pop si |
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| 183 | pop di |
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| 184 | pop ds |
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| 185 | pop es |
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| 186 | ret |
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