| 1 | ; Project name : Assembly Library
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| 2 | ; Description : Menu timeouts other time related functions.
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| 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
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| 7 | ;
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| 8 | ; This program is free software; you can redistribute it and/or modify
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| 9 | ; it under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2 of the License, or
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| 11 | ; (at your option) any later version.
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| 12 | ;
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| 13 | ; This program is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| 20 |
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| 21 | ; Section containing code
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| 22 | SECTION .text
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| 23 |
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| 24 | ;--------------------------------------------------------------------
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| 25 | ; MenuTime_StartSelectionTimeoutWithTicksInAX
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| 26 | ; Parameters
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| 27 | ; AX: Timeout ticks
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| 28 | ; SS:BP: Ptr to MENU
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| 29 | ; Returns:
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| 30 | ; Nothing
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| 31 | ; Corrupts registers:
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| 32 | ; AX, BX
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| 33 | ;--------------------------------------------------------------------
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| 34 | %ifndef EXCLUDE_FROM_XTIDECFG
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| 35 | ALIGN MENU_JUMP_ALIGN
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| 36 | MenuTime_StartSelectionTimeoutWithTicksInAX:
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| 37 | push ds
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| 38 | call PointDSBXtoTimeoutCounter
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| 39 | call TimerTicks_InitializeTimeoutFromAX
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| 40 | or BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
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| 41 | pop ds
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| 42 | ret
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| 43 | %endif
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| 44 |
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| 45 |
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| 46 | ;--------------------------------------------------------------------
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| 47 | ; MenuTime_StopSelectionTimeout
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| 48 | ; Parameters
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| 49 | ; SS:BP: Ptr to MENU
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| 50 | ; Returns:
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| 51 | ; Nothing
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| 52 | ; Corrupts registers:
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| 53 | ; AX, BX, DX, SI, DI
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| 54 | ;--------------------------------------------------------------------
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| 55 | ALIGN MENU_JUMP_ALIGN
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| 56 | MenuTime_StopSelectionTimeout:
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| 57 | test BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
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| 58 | jz SHORT TimeoutAlreadyStopped
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| 59 | and BYTE [bp+MENU.bFlags], ~FLG_MENU_TIMEOUT_COUNTDOWN
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| 60 | jmp MenuBorders_RedrawBottomBorderLine
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| 61 |
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| 62 |
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| 63 | ;--------------------------------------------------------------------
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| 64 | ; MenuTime_UpdateSelectionTimeout
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| 65 | ; Parameters
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| 66 | ; SS:BP: Ptr to MENU
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| 67 | ; Returns:
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| 68 | ; CF: Set if timeout
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| 69 | ; Cleared if time left
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| 70 | ; Corrupts registers:
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| 71 | ; AX, BX, SI, DI
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| 72 | ;--------------------------------------------------------------------
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| 73 | ALIGN MENU_JUMP_ALIGN
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| 74 | MenuTime_UpdateSelectionTimeout:
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| 75 | test BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
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| 76 | jz SHORT .ReturnSinceTimeoutDisabled
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| 77 |
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| 78 | push ds
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| 79 | call PointDSBXtoTimeoutCounter
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| 80 | call TimerTicks_GetTimeoutTicksLeftToAXfromDSBX
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| 81 | pop ds
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| 82 | jnc SHORT .RedrawSinceNoTimeout
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| 83 | and BYTE [bp+MENU.bFlags], ~FLG_MENU_TIMEOUT_COUNTDOWN
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| 84 | stc
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| 85 | ret
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| 86 |
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| 87 | ALIGN MENU_JUMP_ALIGN
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| 88 | .RedrawSinceNoTimeout:
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| 89 | call MenuBorders_RedrawBottomBorderLine
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| 90 | clc
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| 91 | .ReturnSinceTimeoutDisabled:
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| 92 | TimeoutAlreadyStopped:
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| 93 | ret
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| 94 |
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| 95 |
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| 96 | ;--------------------------------------------------------------------
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| 97 | ; MenuTime_GetTimeoutSecondsLeftToAX
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| 98 | ; Parameters
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| 99 | ; SS:BP: Ptr to MENU
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| 100 | ; Returns:
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| 101 | ; AX: Seconds until timeout
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| 102 | ; Corrupts registers:
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| 103 | ; Nothing
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| 104 | ;--------------------------------------------------------------------
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| 105 | ALIGN MENU_JUMP_ALIGN
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| 106 | MenuTime_GetTimeoutSecondsLeftToAX:
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| 107 | push ds
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| 108 | push dx
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| 109 | push cx
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| 110 | push bx
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| 111 |
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| 112 | call PointDSBXtoTimeoutCounter
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| 113 | call TimerTicks_GetTimeoutTicksLeftToAXfromDSBX
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| 114 | jc SHORT .TimeoutHasOccurredSoMakeSureTicksAreNotBelowZero
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| 115 |
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| 116 | xchg dx, ax
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| 117 | call TimerTicks_GetSecondsToAXfromTicksInDX
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| 118 | SKIP2B dx
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| 119 | .TimeoutHasOccurredSoMakeSureTicksAreNotBelowZero:
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| 120 | xor ax, ax
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| 121 |
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| 122 | pop bx
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| 123 | pop cx
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| 124 | pop dx
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| 125 | pop ds
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| 126 | ret
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| 127 |
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| 128 |
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| 129 | ;--------------------------------------------------------------------
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| 130 | ; PointDSBXtoTimeoutCounter
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| 131 | ; Parameters
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| 132 | ; SS:BP: Ptr to MENU
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| 133 | ; Returns:
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| 134 | ; DS:BX: Ptr to timeout counter
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| 135 | ; Corrupts registers:
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| 136 | ; Nothing
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| 137 | ;--------------------------------------------------------------------
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| 138 | ALIGN MENU_JUMP_ALIGN
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| 139 | PointDSBXtoTimeoutCounter:
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| 140 | push ss
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| 141 | pop ds
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| 142 | lea bx, [bp+MENU.wTimeoutCounter]
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| 143 | ret
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