source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/BiosFile.asm @ 592

Last change on this file since 592 was 592, checked in by krille_n_, 6 years ago

Changes:

  • The problem with NASM in the previous revision (r591) has been fixed.
  • The colors used by the boot menu and hotkey bar can now be customized by selecting one of a number of pre-defined color themes. Suggestions for additional themes are more than welcome!
  • Large builds are now 10 KB. Small builds are still 8 KB with the exception of the Tiny build which is now 4 KB. In other words, builds are now as small as possible to make it easier to combine them with other BIOSes.
  • Added code to the library to improve drive error handling. XTIDECFG can now handle "Drive Not Ready" errors.
  • Fixed a couple of potential bugs in AtaID.asm (AtaID_GetMaxPioModeToAXandMinCycleTimeToCX); 1) ATA1.bPioMode was treated as a WORD variable. 2) ATA2.bPIOSupp was assumed to be non-zero which would result in PIO mode 3 being returned if the assumption was wrong.
  • Made the same changes in the equivalent function used by BIOSDRVS (DisplayPioModeInformationUsingAtaInfoFromDSBX in AtaInfo.asm).
  • Fixed a bug from r587 in PDC20x30.asm in PDC20x30_GetMaxPioModeToALandMinPioCycleTimeToBX.
  • Fixed a bug from r523 in XTIDECFG where Auto Configure would only set the IRQ on one IDE interface on AT-builds.
  • XTIDECFG will now restore the default settings for the "Serial port virtual device" when reselecting it in the list of device types. This makes it behave consistently for all device types.
  • The eAAM macro is now used regardless if USE_UNDOC_INTEL is defined or not because it is apparently supported on all processors including the NEC V20/V30 CPUs.
  • Renamed the EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS define to EXCLUDE_FROM_XUB.
  • Added a define to exclude unused library code from BIOSDRVS (EXCLUDE_FROM_BIOSDRVS). This makes it a lot smaller than in previous revisions.
  • All unnecessary CLD-instructions are now under a new define 'CLD_NEEDED' which is only enabled for the BIOS. It is disabled for XTIDECFG and BIOSDRVS but can be enabled if needed by adding this define to the respective makefile. This change was made because these unnecessary instructions are wasteful and should never be needed. In fact, they only serve to hide bugs (in other peoples code) which I strongly believe should be avoided. I recommend people making their own BIOSes from source to not use this define as it's extremely unlikely to be needed.
  • Updated the copyright info in SerDrive and changed an URL to point to the new site.
  • Updated the copyright info and version number in BIOSDRVS.
  • Updated the copyright info in XTIDECFG.
  • Optimizations in general.
File size: 5.9 KB
Line 
1; Project name  :   XTIDE Univeral BIOS Configurator v2
2; Description   :   Functions for loading and saving BIOS image file.
3
4;
5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
12;
13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16; GNU General Public License for more details.
17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
20; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; BiosFile_LoadFileFromDSSItoRamBuffer
25;   Parameters:
26;       DS:SI:  Name of file to open
27;       SS:BP:  Menu handle
28;   Returns:
29;       Nothing
30;   Corrupts registers:
31;       AX, BX, CX, DX, SI, DI
32;--------------------------------------------------------------------
33ALIGN JUMP_ALIGN
34BiosFile_LoadFileFromDSSItoRamBuffer:
35    push    ds
36
37    call    .OpenFileForLoadingFromDSSIandGetSizeToDXCX
38    jc      SHORT .DisplayErrorMessage
39    call    .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
40    jc      SHORT .DisplayErrorMessage
41
42    mov     ax, FLG_CFGVARS_FILELOADED
43    call    Buffers_NewBiosWithSizeInDXCXandSourceInAXhasBeenLoadedForConfiguration
44    call    FileIO_CloseUsingHandleFromBX
45    call    DisplayFileLoadedSuccessfully
46    pop     ds
47    ret
48
49.DisplayErrorMessage:
50    call    FileIO_CloseUsingHandleFromBX
51    call    DisplayFailedToLoadFile
52    pop     ds
53    ret
54
55;--------------------------------------------------------------------
56; .OpenFileForLoadingFromDSSIandGetSizeInBytesToDXCX
57;   Parameters:
58;       DS:SI:  Name of file to open
59;   Returns:
60;       BX:     File handle (if successful)
61;       DX:CX:  File size (if successful)
62;       CF:     Clear if successful
63;               Set if error
64;   Corrupts registers:
65;       AX
66;--------------------------------------------------------------------
67ALIGN JUMP_ALIGN
68.OpenFileForLoadingFromDSSIandGetSizeToDXCX:
69    mov     al, FILE_ACCESS.ReadOnly
70    call    FileIO_OpenWithPathInDSSIandFileAccessInAL
71    jc      SHORT .FileError
72    call    FileIO_GetFileSizeToDXAXusingHandleFromBXandResetFilePosition
73    jc      SHORT .FileError
74
75    cmp     dx, MAX_EEPROM_SIZE_IN_BYTES >> 16
76    jb      SHORT .FileNotTooBig
77    ja      SHORT .FileTooBig
78    cmp     ax, MAX_EEPROM_SIZE_IN_BYTES & 0FFFFh
79    ja      SHORT .FileTooBig
80.FileNotTooBig:
81    xchg    cx, ax
82    clc
83    ret
84.FileTooBig:
85    call    DisplayFileTooBig
86    stc
87.FileError:
88    ret
89
90;--------------------------------------------------------------------
91; .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
92;   Parameters:
93;       BX:     File Handle
94;       DX:CX:  File size
95;       DS:SI:  File name
96;   Returns:
97;       CF:     Clear if successful
98;               Set if error
99;   Corrupts registers:
100;       AX, SI, DI, DS
101;--------------------------------------------------------------------
102ALIGN JUMP_ALIGN
103.LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer:
104    push    es
105
106    call    Buffers_GetFileBufferToESDI
107    call    Registers_ExchangeDSSIwithESDI
108    call    FileIO_ReadDXCXbytesToDSSIusingHandleFromBX
109    jc      SHORT .ReturnError
110
111    ; Store filename to Cfgvars from ESDI
112    push    cx
113
114    call    Registers_CopyESDItoDSSI    ; File name in DS:SI
115    push    cs
116    pop     es
117    mov     di, g_cfgVars+CFGVARS.szOpenedFile
118%ifdef CLD_NEEDED
119    cld
120%endif
121    call    String_CopyDSSItoESDIandGetLengthToCX
122    clc
123
124    pop     cx
125ALIGN JUMP_ALIGN
126.ReturnError:
127    pop     es
128    ret
129
130
131;--------------------------------------------------------------------
132; BiosFile_SaveUnsavedChanges
133;   Parameters:
134;       SS:BP:  Menu handle
135;   Returns:
136;       Nothing
137;   Corrupts registers:
138;       AX, BX, CX, SI, DI
139;--------------------------------------------------------------------
140ALIGN JUMP_ALIGN
141BiosFile_SaveUnsavedChanges:
142    push    ds
143
144    push    cs
145    pop     ds
146    mov     si, g_cfgVars+CFGVARS.szOpenedFile
147    call    BiosFile_SaveRamBufferToFileInDSSI
148
149    pop     ds
150    ret
151
152
153;--------------------------------------------------------------------
154; BiosFile_SaveRamBufferToFileInDSSI
155;   Parameters:
156;       DS:SI:  Name of file to save
157;       SS:BP:  Menu handle
158;   Returns:
159;       Nothing
160;   Corrupts registers:
161;       AX, BX, CX, SI, DI
162;--------------------------------------------------------------------
163ALIGN JUMP_ALIGN
164BiosFile_SaveRamBufferToFileInDSSI:
165    push    es
166    push    ds
167
168    call    Buffers_GenerateChecksum
169    call    Buffers_GetFileBufferToESDI
170    call    EEPROM_GetXtideUniversalBiosSizeFromESDItoDXCX
171
172    mov     al, FILE_ACCESS.WriteOnly
173    call    FileIO_OpenWithPathInDSSIandFileAccessInAL
174    jc      SHORT .DisplayErrorMessage
175
176    call    Registers_CopyESDItoDSSI
177    call    FileIO_WriteDXCXbytesFromDSSIusingHandleFromBX
178    jc      SHORT .DisplayErrorMessage
179
180    call    FileIO_CloseUsingHandleFromBX
181    call    Buffers_ClearUnsavedChanges
182    call    DisplayFileSavedSuccessfully
183    jmp     SHORT .Return
184
185.DisplayErrorMessage:
186    call    FileIO_CloseUsingHandleFromBX
187    call    DisplayFailedToSaveFile
188ALIGN JUMP_ALIGN
189.Return:
190    pop     ds
191    pop     es
192    ret
193
194
195;--------------------------------------------------------------------
196; DisplayFileLoadedSuccessfully
197; DisplayFileSavedSuccessfully
198; DisplayFailedToLoadFile
199; DisplayFailedToSaveFile
200; DisplayFileTooBig
201;   Parameters:
202;       SS:BP:  Menu handle
203;   Returns:
204;       Nothing
205;   Corrupts registers:
206;       AX, DX
207;--------------------------------------------------------------------
208ALIGN JUMP_ALIGN
209DisplayFileLoadedSuccessfully:
210    mov     dx, g_szDlgMainLoadFile
211    jmp     Dialogs_DisplayNotificationFromCSDX
212
213ALIGN JUMP_ALIGN
214DisplayFileSavedSuccessfully:
215    mov     dx, g_szDlgMainSaveFile
216    jmp     Dialogs_DisplayNotificationFromCSDX
217
218DisplayFailedToLoadFile:
219    mov     dx, g_szDlgMainLoadErr
220    jmp     Dialogs_DisplayErrorFromCSDX
221
222DisplayFailedToSaveFile:
223    mov     dx, g_szDlgMainSaveErr
224    jmp     Dialogs_DisplayErrorFromCSDX
225
226DisplayFileTooBig:
227    mov     dx, g_szDlgMainFileTooBig
228    jmp     Dialogs_DisplayErrorFromCSDX
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