[57] | 1 | ; File name : BiosFile.asm |
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| 2 | ; Project name : XTIDE Univeral BIOS Configurator v2 |
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| 3 | ; Created date : 10.10.2010 |
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[68] | 4 | ; Last update : 6.12.2010 |
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[57] | 5 | ; Author : Tomi Tilli |
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| 6 | ; Description : Functions for loading and saving BIOS image file. |
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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 | ; BiosFile_LoadFileFromDSSItoRamBuffer |
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| 13 | ; Parameters: |
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| 14 | ; DS:SI: Name of file to open |
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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, BX, CX, DX, SI, DI |
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| 20 | ;-------------------------------------------------------------------- |
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| 21 | ALIGN JUMP_ALIGN |
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| 22 | BiosFile_LoadFileFromDSSItoRamBuffer: |
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| 23 | push ds |
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| 24 | |
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[68] | 25 | call .OpenFileForLoadingFromDSSIandGetSizeToDXCX |
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[57] | 26 | jc SHORT .DisplayErrorMessage |
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[68] | 27 | call .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer |
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[57] | 28 | jc SHORT .DisplayErrorMessage |
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| 29 | |
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| 30 | mov ax, FLG_CFGVARS_FILELOADED |
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[68] | 31 | call Buffers_NewBiosWithSizeInDXCXandSourceInAXhasBeenLoadedForConfiguration |
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[57] | 32 | call DisplayFileLoadedSuccesfully |
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| 33 | call FileIO_CloseUsingHandleFromBX |
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| 34 | jmp SHORT .Return |
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| 35 | |
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| 36 | .DisplayErrorMessage: |
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| 37 | call FileIO_CloseUsingHandleFromBX |
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| 38 | call DisplayFailedToLoadFile |
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| 39 | ALIGN JUMP_ALIGN |
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| 40 | .Return: |
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| 41 | pop ds |
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| 42 | ret |
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| 43 | |
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| 44 | ;-------------------------------------------------------------------- |
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[68] | 45 | ; .OpenFileForLoadingFromDSSIandGetSizeInBytesToDXCX |
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[57] | 46 | ; Parameters: |
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| 47 | ; DS:SI: Name of file to open |
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| 48 | ; Returns: |
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| 49 | ; BX: File handle (if succesfull) |
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[68] | 50 | ; DX:CX: File size (if succesfull) |
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[57] | 51 | ; CF: Clear if successfull |
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| 52 | ; Set if error |
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| 53 | ; Corrupts registers: |
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[68] | 54 | ; AX |
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[57] | 55 | ;-------------------------------------------------------------------- |
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| 56 | ALIGN JUMP_ALIGN |
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[68] | 57 | .OpenFileForLoadingFromDSSIandGetSizeToDXCX: |
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[57] | 58 | mov al, FILE_ACCESS.ReadOnly |
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| 59 | call FileIO_OpenWithPathInDSSIandFileAccessInAL |
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| 60 | jc SHORT .FileError |
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| 61 | call FileIO_GetFileSizeToDXAXusingHandleFromBXandResetFilePosition |
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| 62 | jc SHORT .FileError |
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| 63 | |
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[68] | 64 | cmp dx, MAX_EEPROM_SIZE_IN_BYTES >> 16 |
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[57] | 65 | ja SHORT .FileTooBig |
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[68] | 66 | jb SHORT .FileNotTooBig |
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| 67 | cmp ax, MAX_EEPROM_SIZE_IN_BYTES & 0FFFFh |
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| 68 | ja SHORT .FileTooBig |
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| 69 | .FileNotTooBig: |
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[57] | 70 | xchg cx, ax |
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| 71 | clc |
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| 72 | ret |
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| 73 | .FileTooBig: |
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| 74 | call DisplayFileTooBig |
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| 75 | stc |
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| 76 | .FileError: |
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| 77 | ret |
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| 78 | |
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| 79 | ;-------------------------------------------------------------------- |
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[68] | 80 | ; .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer |
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[57] | 81 | ; Parameters: |
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| 82 | ; BX: File Handle |
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[68] | 83 | ; DX:CX: File size |
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[57] | 84 | ; DS:SI: File name |
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| 85 | ; Returns: |
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| 86 | ; CF: Clear if successfull |
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| 87 | ; Set if error |
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| 88 | ; Corrupts registers: |
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| 89 | ; AX, SI, DI, DS |
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| 90 | ;-------------------------------------------------------------------- |
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| 91 | ALIGN JUMP_ALIGN |
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[68] | 92 | .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer: |
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[57] | 93 | push es |
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| 94 | |
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| 95 | call Buffers_GetFileBufferToESDI |
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| 96 | call Registers_ExchangeDSSIwithESDI |
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[68] | 97 | call FileIO_ReadDXCXbytesToDSSIusingHandleFromBX |
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[57] | 98 | jnc SHORT .StoreFileNameToCfgvarsFromESDI |
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| 99 | |
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| 100 | pop es |
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| 101 | ret |
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| 102 | |
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| 103 | ALIGN JUMP_ALIGN |
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| 104 | .StoreFileNameToCfgvarsFromESDI: |
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| 105 | push cx |
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| 106 | |
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| 107 | call Registers_CopyESDItoDSSI ; File name in DS:SI |
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| 108 | push cs |
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| 109 | pop es |
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| 110 | mov di, g_cfgVars+CFGVARS.szOpenedFile |
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| 111 | cld |
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| 112 | call String_CopyDSSItoESDIandGetLengthToCX |
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| 113 | |
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| 114 | pop cx |
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| 115 | pop es |
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| 116 | clc |
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| 117 | ret |
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| 118 | |
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| 119 | |
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| 120 | ;-------------------------------------------------------------------- |
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| 121 | ; BiosFile_SaveUnsavedChanges |
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| 122 | ; Parameters: |
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| 123 | ; SS:BP: Menu handle |
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| 124 | ; Returns: |
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| 125 | ; Nothing |
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| 126 | ; Corrupts registers: |
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| 127 | ; AX, BX, CX, SI, DI |
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| 128 | ;-------------------------------------------------------------------- |
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| 129 | ALIGN JUMP_ALIGN |
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| 130 | BiosFile_SaveUnsavedChanges: |
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| 131 | push ds |
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| 132 | |
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| 133 | push cs |
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| 134 | pop ds |
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| 135 | mov si, g_cfgVars+CFGVARS.szOpenedFile |
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| 136 | call BiosFile_SaveRamBufferToFileInDSSI |
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| 137 | |
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| 138 | pop ds |
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| 139 | ret |
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| 140 | |
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| 141 | |
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| 142 | ;-------------------------------------------------------------------- |
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| 143 | ; BiosFile_SaveRamBufferToFileInDSSI |
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| 144 | ; Parameters: |
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| 145 | ; DS:SI: Name of file to save |
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| 146 | ; SS:BP: Menu handle |
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| 147 | ; Returns: |
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| 148 | ; Nothing |
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| 149 | ; Corrupts registers: |
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| 150 | ; AX, BX, CX, SI, DI |
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| 151 | ;-------------------------------------------------------------------- |
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| 152 | ALIGN JUMP_ALIGN |
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| 153 | BiosFile_SaveRamBufferToFileInDSSI: |
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| 154 | push es |
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| 155 | push ds |
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| 156 | |
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| 157 | mov al, FILE_ACCESS.WriteOnly |
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| 158 | call FileIO_OpenWithPathInDSSIandFileAccessInAL |
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| 159 | jc SHORT .DisplayErrorMessage |
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| 160 | |
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| 161 | call Buffers_GenerateChecksum |
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| 162 | call Buffers_GetFileBufferToESDI |
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| 163 | call Registers_CopyESDItoDSSI |
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[68] | 164 | xor dx, dx |
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[65] | 165 | mov cx, [cs:g_cfgVars+CFGVARS.wImageSizeInWords] |
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| 166 | shl cx, 1 |
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[68] | 167 | rcl dx, 1 ; WORDs to BYTEs |
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| 168 | call FileIO_WriteDXCXbytesFromDSSIusingHandleFromBX |
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[57] | 169 | jc SHORT .DisplayErrorMessage |
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| 170 | |
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| 171 | call Buffers_ClearUnsavedChanges |
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| 172 | call DisplayFileSavedSuccesfully |
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| 173 | jmp SHORT .Return |
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| 174 | |
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| 175 | .DisplayErrorMessage: |
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| 176 | call FileIO_CloseUsingHandleFromBX |
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| 177 | call DisplayFailedToSaveFile |
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| 178 | ALIGN JUMP_ALIGN |
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| 179 | .Return: |
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| 180 | pop ds |
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| 181 | pop es |
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| 182 | ret |
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| 183 | |
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| 184 | |
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| 185 | ;-------------------------------------------------------------------- |
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| 186 | ; DisplayFileLoadedSuccesfully |
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| 187 | ; DisplayFileSavedSuccesfully |
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| 188 | ; DisplayFailedToLoadFile |
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| 189 | ; DisplayFailedToSaveFile |
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| 190 | ; DisplayFileTooBig |
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| 191 | ; Parameters: |
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| 192 | ; SS:BP: Menu handle |
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| 193 | ; Returns: |
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| 194 | ; Nothing |
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| 195 | ; Corrupts registers: |
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| 196 | ; AX, DX |
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| 197 | ;-------------------------------------------------------------------- |
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| 198 | ALIGN JUMP_ALIGN |
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| 199 | DisplayFileLoadedSuccesfully: |
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| 200 | mov dx, g_szDlgMainLoadFile |
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| 201 | jmp Dialogs_DisplayNotificationFromCSDX |
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| 202 | |
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| 203 | ALIGN JUMP_ALIGN |
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| 204 | DisplayFileSavedSuccesfully: |
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| 205 | mov dx, g_szDlgMainSaveFile |
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| 206 | jmp Dialogs_DisplayNotificationFromCSDX |
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| 207 | |
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| 208 | DisplayFailedToLoadFile: |
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| 209 | mov dx, g_szDlgMainLoadErr |
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| 210 | jmp Dialogs_DisplayErrorFromCSDX |
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| 211 | |
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| 212 | DisplayFailedToSaveFile: |
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| 213 | mov dx, g_szDlgMainSaveErr |
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| 214 | jmp Dialogs_DisplayErrorFromCSDX |
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| 215 | |
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| 216 | DisplayFileTooBig: |
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| 217 | mov dx, g_szDlgMainFileTooBig |
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| 218 | jmp Dialogs_DisplayErrorFromCSDX |
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