[57] | 1 | ; Project name : XTIDE Univeral BIOS Configurator v2
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| 2 | ; Description : Functions for loading and saving BIOS image file.
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| 3 |
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[376] | 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 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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[57] | 20 | ; Section containing code
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| 21 | SECTION .text
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| 22 |
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| 23 | ;--------------------------------------------------------------------
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| 24 | ; BiosFile_LoadFileFromDSSItoRamBuffer
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| 25 | ; Parameters:
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| 26 | ; DS:SI: Name of file to open
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| 27 | ; SS:BP: Menu handle
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| 28 | ; Returns:
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| 29 | ; Nothing
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| 30 | ; Corrupts registers:
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| 31 | ; AX, BX, CX, DX, SI, DI
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| 32 | ;--------------------------------------------------------------------
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| 33 | ALIGN JUMP_ALIGN
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| 34 | BiosFile_LoadFileFromDSSItoRamBuffer:
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| 35 | push ds
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| 36 |
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[68] | 37 | call .OpenFileForLoadingFromDSSIandGetSizeToDXCX
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[57] | 38 | jc SHORT .DisplayErrorMessage
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[68] | 39 | call .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
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[57] | 40 | jc SHORT .DisplayErrorMessage
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| 41 |
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| 42 | mov ax, FLG_CFGVARS_FILELOADED
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[68] | 43 | call Buffers_NewBiosWithSizeInDXCXandSourceInAXhasBeenLoadedForConfiguration
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[136] | 44 | call FileIO_CloseUsingHandleFromBX
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[293] | 45 | call DisplayFileLoadedSuccessfully
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[57] | 46 | jmp SHORT .Return
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| 47 |
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| 48 | .DisplayErrorMessage:
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| 49 | call FileIO_CloseUsingHandleFromBX
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| 50 | call DisplayFailedToLoadFile
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| 51 | ALIGN JUMP_ALIGN
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| 52 | .Return:
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| 53 | pop ds
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| 54 | ret
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| 55 |
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| 56 | ;--------------------------------------------------------------------
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[68] | 57 | ; .OpenFileForLoadingFromDSSIandGetSizeInBytesToDXCX
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[57] | 58 | ; Parameters:
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| 59 | ; DS:SI: Name of file to open
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| 60 | ; Returns:
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[293] | 61 | ; BX: File handle (if successful)
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| 62 | ; DX:CX: File size (if successful)
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| 63 | ; CF: Clear if successful
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[57] | 64 | ; Set if error
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| 65 | ; Corrupts registers:
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[68] | 66 | ; AX
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[57] | 67 | ;--------------------------------------------------------------------
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| 68 | ALIGN JUMP_ALIGN
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[68] | 69 | .OpenFileForLoadingFromDSSIandGetSizeToDXCX:
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[57] | 70 | mov al, FILE_ACCESS.ReadOnly
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| 71 | call FileIO_OpenWithPathInDSSIandFileAccessInAL
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| 72 | jc SHORT .FileError
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| 73 | call FileIO_GetFileSizeToDXAXusingHandleFromBXandResetFilePosition
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| 74 | jc SHORT .FileError
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| 75 |
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[68] | 76 | cmp dx, MAX_EEPROM_SIZE_IN_BYTES >> 16
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[57] | 77 | ja SHORT .FileTooBig
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[68] | 78 | jb SHORT .FileNotTooBig
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| 79 | cmp ax, MAX_EEPROM_SIZE_IN_BYTES & 0FFFFh
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| 80 | ja SHORT .FileTooBig
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| 81 | .FileNotTooBig:
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[57] | 82 | xchg cx, ax
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| 83 | clc
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| 84 | ret
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| 85 | .FileTooBig:
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| 86 | call DisplayFileTooBig
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| 87 | stc
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| 88 | .FileError:
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| 89 | ret
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| 90 |
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| 91 | ;--------------------------------------------------------------------
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[68] | 92 | ; .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
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[57] | 93 | ; Parameters:
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| 94 | ; BX: File Handle
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[68] | 95 | ; DX:CX: File size
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[57] | 96 | ; DS:SI: File name
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| 97 | ; Returns:
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[293] | 98 | ; CF: Clear if successful
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[57] | 99 | ; Set if error
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| 100 | ; Corrupts registers:
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| 101 | ; AX, SI, DI, DS
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| 102 | ;--------------------------------------------------------------------
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| 103 | ALIGN JUMP_ALIGN
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[68] | 104 | .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer:
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[57] | 105 | push es
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| 106 |
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| 107 | call Buffers_GetFileBufferToESDI
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| 108 | call Registers_ExchangeDSSIwithESDI
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[68] | 109 | call FileIO_ReadDXCXbytesToDSSIusingHandleFromBX
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[181] | 110 | jc SHORT .ReturnError
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[57] | 111 |
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[181] | 112 | ; Store filename to Cfgvars from ESDI
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[57] | 113 | push cx
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| 114 |
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[107] | 115 | call Registers_CopyESDItoDSSI ; File name in DS:SI
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[57] | 116 | push cs
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| 117 | pop es
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| 118 | mov di, g_cfgVars+CFGVARS.szOpenedFile
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| 119 | cld
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| 120 | call String_CopyDSSItoESDIandGetLengthToCX
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[181] | 121 | clc
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[57] | 122 |
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| 123 | pop cx
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[181] | 124 | ALIGN JUMP_ALIGN
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| 125 | .ReturnError:
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[57] | 126 | pop es
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| 127 | ret
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| 128 |
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| 129 |
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| 130 | ;--------------------------------------------------------------------
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| 131 | ; BiosFile_SaveUnsavedChanges
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| 132 | ; Parameters:
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| 133 | ; SS:BP: Menu handle
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| 134 | ; Returns:
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| 135 | ; Nothing
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| 136 | ; Corrupts registers:
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| 137 | ; AX, BX, CX, SI, DI
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| 138 | ;--------------------------------------------------------------------
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| 139 | ALIGN JUMP_ALIGN
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| 140 | BiosFile_SaveUnsavedChanges:
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| 141 | push ds
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| 142 |
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| 143 | push cs
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| 144 | pop ds
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| 145 | mov si, g_cfgVars+CFGVARS.szOpenedFile
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| 146 | call BiosFile_SaveRamBufferToFileInDSSI
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| 147 |
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| 148 | pop ds
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| 149 | ret
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| 150 |
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| 151 |
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| 152 | ;--------------------------------------------------------------------
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| 153 | ; BiosFile_SaveRamBufferToFileInDSSI
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| 154 | ; Parameters:
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| 155 | ; DS:SI: Name of file to save
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| 156 | ; SS:BP: Menu handle
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| 157 | ; Returns:
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| 158 | ; Nothing
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| 159 | ; Corrupts registers:
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| 160 | ; AX, BX, CX, SI, DI
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| 161 | ;--------------------------------------------------------------------
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| 162 | ALIGN JUMP_ALIGN
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| 163 | BiosFile_SaveRamBufferToFileInDSSI:
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| 164 | push es
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| 165 | push ds
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| 166 |
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| 167 | call Buffers_GenerateChecksum
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| 168 | call Buffers_GetFileBufferToESDI
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[118] | 169 | mov ax, [cs:g_cfgVars+CFGVARS.wImageSizeInWords]
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| 170 | call EEPROM_GetSmallestEepromSizeInWordsToCXforImageWithWordSizeInAX
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[68] | 171 | xor dx, dx
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[65] | 172 | shl cx, 1
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[181] | 173 | rcl dx, 1 ; WORDs to BYTEs
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[138] | 174 |
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| 175 | mov al, FILE_ACCESS.WriteOnly
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| 176 | call FileIO_OpenWithPathInDSSIandFileAccessInAL
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| 177 | jc SHORT .DisplayErrorMessage
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| 178 |
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| 179 | call Registers_CopyESDItoDSSI
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[68] | 180 | call FileIO_WriteDXCXbytesFromDSSIusingHandleFromBX
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[57] | 181 | jc SHORT .DisplayErrorMessage
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| 182 |
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[136] | 183 | call FileIO_CloseUsingHandleFromBX
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[57] | 184 | call Buffers_ClearUnsavedChanges
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[293] | 185 | call DisplayFileSavedSuccessfully
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[57] | 186 | jmp SHORT .Return
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| 187 |
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| 188 | .DisplayErrorMessage:
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| 189 | call FileIO_CloseUsingHandleFromBX
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| 190 | call DisplayFailedToSaveFile
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| 191 | ALIGN JUMP_ALIGN
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| 192 | .Return:
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| 193 | pop ds
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| 194 | pop es
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| 195 | ret
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| 196 |
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| 197 |
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| 198 | ;--------------------------------------------------------------------
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[293] | 199 | ; DisplayFileLoadedSuccessfully
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| 200 | ; DisplayFileSavedSuccessfully
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[57] | 201 | ; DisplayFailedToLoadFile
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| 202 | ; DisplayFailedToSaveFile
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| 203 | ; DisplayFileTooBig
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| 204 | ; Parameters:
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| 205 | ; SS:BP: Menu handle
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| 206 | ; Returns:
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| 207 | ; Nothing
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| 208 | ; Corrupts registers:
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| 209 | ; AX, DX
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| 210 | ;--------------------------------------------------------------------
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| 211 | ALIGN JUMP_ALIGN
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[293] | 212 | DisplayFileLoadedSuccessfully:
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[57] | 213 | mov dx, g_szDlgMainLoadFile
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| 214 | jmp Dialogs_DisplayNotificationFromCSDX
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| 215 |
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| 216 | ALIGN JUMP_ALIGN
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[293] | 217 | DisplayFileSavedSuccessfully:
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[57] | 218 | mov dx, g_szDlgMainSaveFile
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| 219 | jmp Dialogs_DisplayNotificationFromCSDX
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| 220 |
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| 221 | DisplayFailedToLoadFile:
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| 222 | mov dx, g_szDlgMainLoadErr
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| 223 | jmp Dialogs_DisplayErrorFromCSDX
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| 224 |
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| 225 | DisplayFailedToSaveFile:
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| 226 | mov dx, g_szDlgMainSaveErr
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| 227 | jmp Dialogs_DisplayErrorFromCSDX
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| 228 |
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| 229 | DisplayFileTooBig:
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| 230 | mov dx, g_szDlgMainFileTooBig
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| 231 | jmp Dialogs_DisplayErrorFromCSDX
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