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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