1 | ; File name : main.asm |
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2 | ; Project name : XTIDE Univeral BIOS Configurator |
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3 | ; Created date : 16.4.2010 |
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4 | ; Last update : 30.4.2010 |
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5 | ; Author : Tomi Tilli |
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6 | ; Description : Program start and exit. |
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7 | |
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8 | ; Include .inc files |
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9 | %include "emulate.inc" ; Emulation library. Must be first! |
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10 | %include "BiosData.inc" ; For BIOS Data Area variables |
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11 | %include "Variables.inc" ; Global variables for this program |
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12 | %include "MenuPage.inc" ; Menu page and item structs |
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13 | %include "RomVars.inc" ; XTIDE Universal BIOS ROMVARS |
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14 | |
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15 | |
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16 | ; Section containing code |
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17 | SECTION .text |
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18 | |
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19 | ; Program first instruction. |
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20 | ORG 100h ; Code starts at offset 100h (DOS .COM) |
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21 | Start: |
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22 | jmp Main_Start |
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23 | |
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24 | ; Include library sources |
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25 | %include "math.asm" |
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26 | %include "print.asm" |
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27 | %include "string.asm" |
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28 | %include "keys.asm" |
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29 | %include "file.asm" |
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30 | %include "menu.asm" |
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31 | |
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32 | ; Include sources for this program |
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33 | %include "Strings.asm" ; For program strings |
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34 | %include "MenuEvent.asm" ; For handling menu library events |
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35 | %include "MenuEventHotkey.asm" ; For handling menu hotkeys |
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36 | %include "MenuPage.asm" ; For accessing MENUPAGE structs |
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37 | %include "MenuPageItem.asm" ; For accessing MENUPAGEITEM structs |
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38 | %include "MenuPageItemFormat.asm" ; For printing menuitem names |
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39 | %include "FormatTitle.asm" ; For printing menu title |
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40 | %include "BiosFile.asm" ; For loading and saving BIOS file |
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41 | %include "EEPROM.asm" ; For handling EEPROM contents |
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42 | %include "Flash.asm" ; For flashing EEPROM |
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43 | |
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44 | %include "MainMenu.asm" ; For main menu |
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45 | %include "ConfigurationMenu.asm" ; For XTIDE Universal BIOS configuration menu |
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46 | %include "BootLoaderValueMenu.asm" ; For selecting boot loader type |
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47 | %include "IdeControllerMenu.asm" ; For configuring IDEVARS |
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48 | %include "BusTypeValueMenu.asm" ; For selecting bus type |
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49 | %include "DrvParamsMenu.asm" ; For configuring DRVPARAMS |
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50 | %include "BootMenuSettingsMenu.asm" ; For configuring boot menu |
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51 | %include "FlashMenu.asm" ; For flash settings |
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52 | %include "SdpCommandValueMenu.asm" ; For selecting SDP command |
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53 | |
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54 | |
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55 | ;-------------------------------------------------------------------- |
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56 | ; Program start |
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57 | ;-------------------------------------------------------------------- |
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58 | ALIGN JUMP_ALIGN |
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59 | Main_Start: |
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60 | call MenuDraw_ClrScr ; Clear screen |
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61 | call Main_InitializeVariables |
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62 | |
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63 | ; Create main menu |
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64 | mov si, g_MenuPageMain ; DS:SI points to MENUPAGE for main menu |
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65 | call MainMenu_SetMenuitemVisibility |
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66 | call Main_EnterMenu ; Enter menu |
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67 | call MenuDraw_ClrScr ; Clear screen |
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68 | |
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69 | ; Exit to DOS |
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70 | mov ax, 4C00h ; Exit to DOS |
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71 | int 21h |
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72 | |
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73 | |
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74 | ;-------------------------------------------------------------------- |
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75 | ; Initializes global variables used in this program. |
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76 | ; |
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77 | ; Main_InitializeVariables |
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78 | ; Parameters: |
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79 | ; Nothing |
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80 | ; Returns: |
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81 | ; Nothing |
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82 | ; Corrupts registers: |
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83 | ; AX, BX, CX, DX, SI, DI, ES |
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84 | ;-------------------------------------------------------------------- |
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85 | ALIGN JUMP_ALIGN |
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86 | Main_InitializeVariables: |
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87 | ; Zero all global variables |
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88 | mov di, g_cfgVars ; ES:DI points to global variables |
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89 | mov cx, (CFGVARS_size+ROMVARS_size)/2 ; Size in words |
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90 | xor ax, ax ; To store zero |
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91 | cld ; STOSW to increment DI |
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92 | rep stosw ; Zero all variables |
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93 | |
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94 | ; Find Xtide Universal BIOS segment |
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95 | mov dx, 0D000h ; XTIDE default segment |
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96 | call EEPROM_FindXtideUniversalBiosROM |
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97 | jnc SHORT .InitializeVariables |
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98 | mov dx, es ; XTIDE segment to DX |
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99 | |
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100 | ALIGN JUMP_ALIGN |
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101 | .InitializeVariables: |
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102 | mov WORD [g_cfgVars+CFGVARS.wFlags], FLG_CFGVARS_CHECKSUM |
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103 | mov WORD [g_cfgVars+CFGVARS.wEepromSegment], dx |
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104 | mov BYTE [g_cfgVars+CFGVARS.bPageSize], 1 |
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105 | mov BYTE [g_cfgVars+CFGVARS.bSdpCommand], CMD_SDP_ENABLE |
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106 | ret |
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107 | |
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108 | |
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109 | ;-------------------------------------------------------------------- |
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110 | ; Enters main or submenu. |
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111 | ; |
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112 | ; Main_EnterMenu |
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113 | ; Parameters: |
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114 | ; DS:SI: Ptr to MENUPAGE (also menu user far pointer for MENUVARS.user) |
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115 | ; Returns: |
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116 | ; CX: Index of last pointed Menuitem (not necessary selected with ENTER) |
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117 | ; FFFFh if cancelled with ESC |
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118 | ; Corrupts registers: |
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119 | ; AX, BX, CX, DX, SI, DI |
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120 | ;-------------------------------------------------------------------- |
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121 | ALIGN JUMP_ALIGN |
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122 | Main_EnterMenu: |
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123 | call MenuPage_GetNumberOfVisibleItems |
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124 | mov cl, al ; Number of visible menuitems to CL |
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125 | mov ax, (CNT_SCRN_ROW<<8) | WIDTH_MENU |
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126 | mov bx, (CNT_INFO_LINES<<8) | CNT_TITLE_LINES |
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127 | mov ch, [cs:g_cfgVars+CFGVARS.wFlags] ; Load program flags to CH |
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128 | and ch, FLG_MNU_HIDENFO ; Clear all but info flag |
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129 | xor dx, dx ; No selection timeout |
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130 | mov di, MenuEvent_Handler ; CS:DI points to menu event handler |
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131 | inc BYTE [cs:g_cfgVars+CFGVARS.bMenuCnt] |
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132 | call Menu_Enter |
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133 | dec BYTE [cs:g_cfgVars+CFGVARS.bMenuCnt] |
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134 | jz SHORT .Return |
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135 | |
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136 | ; Update info visibility for previous menu where to resume |
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137 | test BYTE [cs:g_cfgVars+CFGVARS.wFlags], FLG_CFGVARS_HIDEINFO |
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138 | jnz SHORT .HideInfo |
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139 | call Menu_ShowInfo |
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140 | ret |
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141 | ALIGN JUMP_ALIGN |
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142 | .HideInfo: |
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143 | call Menu_HideInfo |
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144 | .Return: |
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145 | ret |
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146 | |
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147 | |
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148 | ; Section containing uninitialized data |
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149 | SECTION .bss |
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150 | |
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151 | ALIGN WORD_ALIGN ; All global variables |
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152 | g_cfgVars: resb CFGVARS_size |
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