1 | ; Project name : XTIDE Universal BIOS Configurator v2
|
---|
2 | ; Description : "Master/Slave Drive" menu structs and functions.
|
---|
3 |
|
---|
4 | ; Section containing initialized data
|
---|
5 | SECTION .data
|
---|
6 |
|
---|
7 | ALIGN WORD_ALIGN
|
---|
8 | g_MenupageForMasterSlaveMenu:
|
---|
9 | istruc MENUPAGE
|
---|
10 | at MENUPAGE.fnEnter, dw MasterSlaveMenu_EnterMenuOrModifyItemVisibility
|
---|
11 | at MENUPAGE.fnBack, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
|
---|
12 | at MENUPAGE.wMenuitems, dw 9
|
---|
13 | iend
|
---|
14 |
|
---|
15 | g_MenuitemMasterSlaveBackToIdeControllerMenu:
|
---|
16 | istruc MENUITEM
|
---|
17 | at MENUITEM.fnActivate, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
|
---|
18 | at MENUITEM.szName, dw g_szItemDrvBackToIde
|
---|
19 | at MENUITEM.szQuickInfo, dw g_szItemDrvBackToIde
|
---|
20 | at MENUITEM.szHelp, dw g_szItemDrvBackToIde
|
---|
21 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
|
---|
22 | at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK
|
---|
23 | iend
|
---|
24 |
|
---|
25 | g_MenuitemMasterSlaveBlockModeTransfers:
|
---|
26 | istruc MENUITEM
|
---|
27 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
|
---|
28 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
|
---|
29 | at MENUITEM.szName, dw g_szItemDrvBlockMode
|
---|
30 | at MENUITEM.szQuickInfo, dw g_szNfoDrvBlockMode
|
---|
31 | at MENUITEM.szHelp, dw g_szHelpDrvBlockMode
|
---|
32 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_FLAGVALUE
|
---|
33 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
|
---|
34 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
35 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvBlockMode
|
---|
36 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
|
---|
37 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
|
---|
38 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_BLOCKMODE
|
---|
39 | iend
|
---|
40 |
|
---|
41 | g_MenuitemMasterSlaveWriteCache:
|
---|
42 | istruc MENUITEM
|
---|
43 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
|
---|
44 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
|
---|
45 | at MENUITEM.szName, dw g_szItemDrvWriteCache
|
---|
46 | at MENUITEM.szQuickInfo, dw g_szNfoDrvWriteCache
|
---|
47 | at MENUITEM.szHelp, dw g_szHelpDrvWriteCache
|
---|
48 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MASKVALUE
|
---|
49 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
|
---|
50 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
51 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvWriteCache
|
---|
52 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiseWrCache
|
---|
53 | at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForWriteCache
|
---|
54 | at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForWriteCache
|
---|
55 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw MASK_DRVPARAMS_WRITECACHE
|
---|
56 | iend
|
---|
57 |
|
---|
58 | g_MenuitemMasterSlaveUserCHS:
|
---|
59 | istruc MENUITEM
|
---|
60 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
|
---|
61 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
|
---|
62 | at MENUITEM.szName, dw g_szItemDrvUserCHS
|
---|
63 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserCHS
|
---|
64 | at MENUITEM.szHelp, dw g_szHelpDrvUserCHS
|
---|
65 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE
|
---|
66 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
|
---|
67 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
68 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserCHS
|
---|
69 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
|
---|
70 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
|
---|
71 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERCHS
|
---|
72 | iend
|
---|
73 |
|
---|
74 | g_MenuitemMasterSlaveCylinders:
|
---|
75 | istruc MENUITEM
|
---|
76 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
|
---|
77 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
|
---|
78 | at MENUITEM.szName, dw g_szItemDrvCyls
|
---|
79 | at MENUITEM.szQuickInfo, dw g_szNfoDrvCyls
|
---|
80 | at MENUITEM.szHelp, dw g_szNfoDrvCyls
|
---|
81 | at MENUITEM.bFlags, db NULL
|
---|
82 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
|
---|
83 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
84 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvCyls
|
---|
85 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
|
---|
86 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 16383
|
---|
87 | iend
|
---|
88 |
|
---|
89 | g_MenuitemMasterSlaveHeads:
|
---|
90 | istruc MENUITEM
|
---|
91 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
|
---|
92 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
|
---|
93 | at MENUITEM.szName, dw g_szItemDrvHeads
|
---|
94 | at MENUITEM.szQuickInfo, dw g_szNfoDrvHeads
|
---|
95 | at MENUITEM.szHelp, dw g_szNfoDrvHeads
|
---|
96 | at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
|
---|
97 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
|
---|
98 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
99 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvHeads
|
---|
100 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
|
---|
101 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 16
|
---|
102 | iend
|
---|
103 |
|
---|
104 | g_MenuitemMasterSlaveSectors:
|
---|
105 | istruc MENUITEM
|
---|
106 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
|
---|
107 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
|
---|
108 | at MENUITEM.szName, dw g_szItemDrvSect
|
---|
109 | at MENUITEM.szQuickInfo, dw g_szNfoDrvSect
|
---|
110 | at MENUITEM.szHelp, dw g_szNfoDrvSect
|
---|
111 | at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
|
---|
112 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
|
---|
113 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
114 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvSect
|
---|
115 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
|
---|
116 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 63
|
---|
117 | iend
|
---|
118 |
|
---|
119 | g_MenuitemMasterSlaveUserLBA:
|
---|
120 | istruc MENUITEM
|
---|
121 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
|
---|
122 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
|
---|
123 | at MENUITEM.szName, dw g_szItemDrvUserLBA
|
---|
124 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserLBA
|
---|
125 | at MENUITEM.szHelp, dw g_szHelpDrvUserLBA
|
---|
126 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE
|
---|
127 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
|
---|
128 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
129 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserLBA
|
---|
130 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
|
---|
131 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
|
---|
132 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERLBA
|
---|
133 | iend
|
---|
134 |
|
---|
135 | g_MenuitemMasterSlaveUserLbaValue:
|
---|
136 | istruc MENUITEM
|
---|
137 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
|
---|
138 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
|
---|
139 | at MENUITEM.szName, dw g_szItemDrvLbaSectors
|
---|
140 | at MENUITEM.szQuickInfo, dw g_szNfoDrvLbaSectors
|
---|
141 | at MENUITEM.szHelp, dw g_szNfoDrvLbaSectors
|
---|
142 | at MENUITEM.bFlags, db NULL
|
---|
143 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
|
---|
144 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
|
---|
145 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvLbaSectors
|
---|
146 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw ((16383*16*63) / (1024 * 1024)) + 1 ; One sector over 8.4 GB
|
---|
147 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 10000000h / (1024 * 1024) ; Limit to 28-bit LBA
|
---|
148 | at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw ValueReaderForUserLbaValue
|
---|
149 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw ValueWriterForUserLbaValue
|
---|
150 | iend
|
---|
151 |
|
---|
152 |
|
---|
153 | g_rgwChoiceToValueLookupForWriteCache:
|
---|
154 | dw DEFAULT_WRITE_CACHE
|
---|
155 | dw DISABLE_WRITE_CACHE
|
---|
156 | dw ENABLE_WRITE_CACHE
|
---|
157 |
|
---|
158 | g_rgszChoiceToStringLookupForWriteCache:
|
---|
159 | dw g_szValueBootDispModeDefault
|
---|
160 | dw g_szValueDrvWrCaDis
|
---|
161 | dw g_szValueDrvWrCaEn
|
---|
162 |
|
---|
163 |
|
---|
164 | ; Section containing code
|
---|
165 | SECTION .text
|
---|
166 |
|
---|
167 | ;--------------------------------------------------------------------
|
---|
168 | ; MasterSlaveMenu_InitializeToDrvparamsOffsetInBX
|
---|
169 | ; Parameters:
|
---|
170 | ; SS:BP: Menu handle
|
---|
171 | ; Returns:
|
---|
172 | ; Nothing
|
---|
173 | ; Corrupts registers:
|
---|
174 | ; AX
|
---|
175 | ;--------------------------------------------------------------------
|
---|
176 | ALIGN JUMP_ALIGN
|
---|
177 | MasterSlaveMenu_InitializeToDrvparamsOffsetInBX:
|
---|
178 | lea ax, [bx+DRVPARAMS.wFlags]
|
---|
179 | mov [cs:g_MenuitemMasterSlaveBlockModeTransfers+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
180 | mov [cs:g_MenuitemMasterSlaveWriteCache+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
181 | mov [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
182 | mov [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
183 |
|
---|
184 | lea ax, [bx+DRVPARAMS.wCylinders]
|
---|
185 | mov [cs:g_MenuitemMasterSlaveCylinders+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
186 |
|
---|
187 | lea ax, [bx+DRVPARAMS.bHeads]
|
---|
188 | mov [cs:g_MenuitemMasterSlaveHeads+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
189 |
|
---|
190 | lea ax, [bx+DRVPARAMS.bSect]
|
---|
191 | mov [cs:g_MenuitemMasterSlaveSectors+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
192 |
|
---|
193 | lea ax, [bx+DRVPARAMS.dwMaximumLBA]
|
---|
194 | mov [cs:g_MenuitemMasterSlaveUserLbaValue+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
|
---|
195 | ret
|
---|
196 |
|
---|
197 |
|
---|
198 | ;--------------------------------------------------------------------
|
---|
199 | ; MasterSlaveMenu_EnterMenuOrModifyItemVisibility
|
---|
200 | ; Parameters:
|
---|
201 | ; SS:BP: Menu handle
|
---|
202 | ; Returns:
|
---|
203 | ; Nothing
|
---|
204 | ; Corrupts registers:
|
---|
205 | ; All, except BP
|
---|
206 | ;--------------------------------------------------------------------
|
---|
207 | ALIGN JUMP_ALIGN
|
---|
208 | MasterSlaveMenu_EnterMenuOrModifyItemVisibility:
|
---|
209 | push cs
|
---|
210 | pop ds
|
---|
211 | call .EnableOrDisableUserCHSandLBA
|
---|
212 | call .EnableOrDisableCHandS
|
---|
213 | call .EnableOrDisableUserLbaValue
|
---|
214 | mov si, g_MenupageForMasterSlaveMenu
|
---|
215 | jmp Menupage_ChangeToNewMenupageInDSSI
|
---|
216 |
|
---|
217 |
|
---|
218 | ;--------------------------------------------------------------------
|
---|
219 | ; .EnableOrDisableUserCHSandLBA
|
---|
220 | ; Parameters:
|
---|
221 | ; SS:BP: Menu handle
|
---|
222 | ; Returns:
|
---|
223 | ; Nothing
|
---|
224 | ; Corrupts registers:
|
---|
225 | ; AX, BX
|
---|
226 | ;--------------------------------------------------------------------
|
---|
227 | ALIGN JUMP_ALIGN
|
---|
228 | .EnableOrDisableUserCHSandLBA:
|
---|
229 | mov bx, [g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
|
---|
230 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
|
---|
231 | test ax, FLG_DRVPARAMS_USERLBA
|
---|
232 | jnz SHORT .DisableCHSandEnableLBA
|
---|
233 | test ax, FLG_DRVPARAMS_USERCHS
|
---|
234 | jnz SHORT .EnableCHSandDisableLBA
|
---|
235 |
|
---|
236 | ; Enable both
|
---|
237 | mov bx, g_MenuitemMasterSlaveUserCHS
|
---|
238 | call .EnableMenuitemFromCSBX
|
---|
239 | mov bx, g_MenuitemMasterSlaveUserLBA
|
---|
240 | jmp .EnableMenuitemFromCSBX
|
---|
241 |
|
---|
242 | ALIGN JUMP_ALIGN
|
---|
243 | .EnableCHSandDisableLBA:
|
---|
244 | mov bx, g_MenuitemMasterSlaveUserCHS
|
---|
245 | call .EnableMenuitemFromCSBX
|
---|
246 | mov bx, g_MenuitemMasterSlaveUserLBA
|
---|
247 | jmp .DisableMenuitemFromCSBX
|
---|
248 |
|
---|
249 | ALIGN JUMP_ALIGN
|
---|
250 | .DisableCHSandEnableLBA:
|
---|
251 | mov bx, g_MenuitemMasterSlaveUserLBA
|
---|
252 | call .EnableMenuitemFromCSBX
|
---|
253 | mov bx, g_MenuitemMasterSlaveUserCHS
|
---|
254 | jmp .DisableMenuitemFromCSBX
|
---|
255 |
|
---|
256 |
|
---|
257 | ;--------------------------------------------------------------------
|
---|
258 | ; .EnableOrDisableCHandS
|
---|
259 | ; Parameters:
|
---|
260 | ; SS:BP: Menu handle
|
---|
261 | ; Returns:
|
---|
262 | ; Nothing
|
---|
263 | ; Corrupts registers:
|
---|
264 | ; AX, BX
|
---|
265 | ;--------------------------------------------------------------------
|
---|
266 | ALIGN JUMP_ALIGN
|
---|
267 | .EnableOrDisableCHandS:
|
---|
268 | mov bx, [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
|
---|
269 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
|
---|
270 | test ax, FLG_DRVPARAMS_USERCHS
|
---|
271 | jz SHORT .DisableCHandS
|
---|
272 | test ax, FLG_DRVPARAMS_USERLBA
|
---|
273 | jnz SHORT .DisableCHandS
|
---|
274 |
|
---|
275 | mov bx, g_MenuitemMasterSlaveCylinders
|
---|
276 | call .EnableMenuitemFromCSBX
|
---|
277 | mov bx, g_MenuitemMasterSlaveHeads
|
---|
278 | call .EnableMenuitemFromCSBX
|
---|
279 | mov bx, g_MenuitemMasterSlaveSectors
|
---|
280 | jmp SHORT .EnableMenuitemFromCSBX
|
---|
281 |
|
---|
282 | ALIGN JUMP_ALIGN
|
---|
283 | .DisableCHandS:
|
---|
284 | mov bx, g_MenuitemMasterSlaveCylinders
|
---|
285 | call .DisableMenuitemFromCSBX
|
---|
286 | mov bx, g_MenuitemMasterSlaveHeads
|
---|
287 | call .DisableMenuitemFromCSBX
|
---|
288 | mov bx, g_MenuitemMasterSlaveSectors
|
---|
289 | jmp SHORT .DisableMenuitemFromCSBX
|
---|
290 |
|
---|
291 |
|
---|
292 | ;--------------------------------------------------------------------
|
---|
293 | ; .EnableOrDisableUserLbaValue
|
---|
294 | ; Parameters:
|
---|
295 | ; SS:BP: Menu handle
|
---|
296 | ; Returns:
|
---|
297 | ; Nothing
|
---|
298 | ; Corrupts registers:
|
---|
299 | ; AX, BX
|
---|
300 | ;--------------------------------------------------------------------
|
---|
301 | ALIGN JUMP_ALIGN
|
---|
302 | .EnableOrDisableUserLbaValue:
|
---|
303 | mov bx, [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
|
---|
304 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
|
---|
305 | mov bx, g_MenuitemMasterSlaveUserLbaValue
|
---|
306 | test ax, FLG_DRVPARAMS_USERCHS
|
---|
307 | jnz SHORT .DisableMenuitemFromCSBX
|
---|
308 | test ax, FLG_DRVPARAMS_USERLBA
|
---|
309 | jz SHORT .DisableMenuitemFromCSBX
|
---|
310 | ; Fall to .EnableMenuitemFromCSBX
|
---|
311 |
|
---|
312 |
|
---|
313 | ;--------------------------------------------------------------------
|
---|
314 | ; .EnableMenuitemFromCSBX
|
---|
315 | ; .DisableMenuitemFromCSBX
|
---|
316 | ; Parameters:
|
---|
317 | ; CS:BX: Ptr to MENUITEM
|
---|
318 | ; Returns:
|
---|
319 | ; Nothing
|
---|
320 | ; Corrupts registers:
|
---|
321 | ; Nothing
|
---|
322 | ;--------------------------------------------------------------------
|
---|
323 | ALIGN JUMP_ALIGN
|
---|
324 | .EnableMenuitemFromCSBX:
|
---|
325 | or BYTE [cs:bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE
|
---|
326 | ret
|
---|
327 |
|
---|
328 | ALIGN JUMP_ALIGN
|
---|
329 | .DisableMenuitemFromCSBX:
|
---|
330 | and BYTE [cs:bx+MENUITEM.bFlags], ~FLG_MENUITEM_VISIBLE
|
---|
331 | ret
|
---|
332 |
|
---|
333 |
|
---|
334 | ;--------------------------------------------------------------------
|
---|
335 | ; MENUITEM value reader functions
|
---|
336 | ; Parameters:
|
---|
337 | ; AX: Value from MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
|
---|
338 | ; DS:SI: Ptr to MENUITEM
|
---|
339 | ; ES:DI: Ptr to value variable
|
---|
340 | ; Returns:
|
---|
341 | ; AX: Value with possible modifications
|
---|
342 | ; Corrupts registers:
|
---|
343 | ; Nothing
|
---|
344 | ;--------------------------------------------------------------------
|
---|
345 | ALIGN JUMP_ALIGN
|
---|
346 | ValueReaderForUserLbaValue:
|
---|
347 | push dx
|
---|
348 |
|
---|
349 | mov ax, [es:di]
|
---|
350 | mov dx, [es:di+2] ; DX:AX now holds user defined LBA28 limit
|
---|
351 | add ax, BYTE 1 ; Increment by one
|
---|
352 | adc dx, BYTE 0
|
---|
353 |
|
---|
354 | xchg ax, dx ; SHR 16
|
---|
355 | eSHIFT_IM ax, 4, shr ; SHR 4 => AX = DX:AX / (1024*1024)
|
---|
356 |
|
---|
357 | pop dx
|
---|
358 | ret
|
---|
359 |
|
---|
360 |
|
---|
361 | ;--------------------------------------------------------------------
|
---|
362 | ; MENUITEM value writer functions
|
---|
363 | ; Parameters:
|
---|
364 | ; AX: Value to be written to MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
|
---|
365 | ; DS:SI: Ptr to MENUITEM
|
---|
366 | ; ES:DI: Ptr to value variable
|
---|
367 | ; Returns:
|
---|
368 | ; AX: Value to be stored
|
---|
369 | ; Corrupts registers:
|
---|
370 | ; Nothing
|
---|
371 | ;--------------------------------------------------------------------
|
---|
372 | ALIGN JUMP_ALIGN
|
---|
373 | ValueWriterForUserLbaValue:
|
---|
374 | push dx
|
---|
375 |
|
---|
376 | xor dx, dx
|
---|
377 | eSHIFT_IM ax, 4, shl
|
---|
378 | xchg dx, ax ; DX:AX now holds AX * 1024 * 1024
|
---|
379 |
|
---|
380 | sub ax, BYTE 1 ; Decrement DX:AX by one
|
---|
381 | sbb dx, BYTE 0 ; (necessary since maximum LBA28 sector count is 0FFF FFFFh)
|
---|
382 |
|
---|
383 | mov [es:di+2], dx ; Store DX by ourselves
|
---|
384 | pop dx
|
---|
385 | ret ; AX will be stored by our menu system
|
---|