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MasterSlaveMenu.asm@ 575

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Last change on this file since 575 was 567, checked in by krille_n_@…, 11 years ago

Changes:

Renamed MODULE_FEATURE_SETS to MODULE_POWER_MANAGEMENT.
Renamed MODULE_VERY_LATE_INITIALIZATION to MODULE_VERY_LATE_INIT and removed it from the official builds.
Removed the code that skips detection of slave drives on XT-CF controllers since slave drives can be used with Lo-tech ISA CompactFlash boards.
Added autodetection of the SVC ADP50L controller to XTIDECFG.
The autodetection of XT-CF controllers now requires MODULE_8BIT_IDE_ADVANCED in the loaded BIOS.
Fixed a bug in XTIDECFG from r502 where the "Base (cmd block) address" menu option would be displayed when a serial device was selected as the IDE controller.
XTIDECFG would display the "Enable interrupt" menu option for the XTIDE r1 but not for the XTIDE r2. It's now displayed for both controller types.
Disabled the "Internal Write Cache" menu option in the Master/Slave Drive menus for serial device type drives.
Optimizations and other fixes.

File size: 18.7 KB

Line
1	; Project name : XTIDE Universal BIOS Configurator v2
2	; Description : "Master/Slave Drive" menu structs and functions.
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 initialized data
21	SECTION .data
22
23	ALIGN WORD_ALIGN
24	g_MenupageForMasterSlaveMenu:
25	istruc MENUPAGE
26	at MENUPAGE.fnEnter, dw MasterSlaveMenu_EnterMenuOrModifyItemVisibility
27	at MENUPAGE.fnBack, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
28	at MENUPAGE.wMenuitems, dw 10
29	iend
30
31	g_MenuitemMasterSlaveBackToIdeControllerMenu:
32	istruc MENUITEM
33	at MENUITEM.fnActivate, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
34	at MENUITEM.szName, dw g_szItemDrvBackToIde
35	at MENUITEM.szQuickInfo, dw g_szItemDrvBackToIde
36	at MENUITEM.szHelp, dw g_szItemDrvBackToIde
37	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
38	at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK
39	iend
40
41	g_MenuitemMasterSlaveBlockModeTransfers:
42	istruc MENUITEM
43	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
44	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
45	at MENUITEM.szName, dw g_szItemDrvBlockMode
46	at MENUITEM.szQuickInfo, dw g_szNfoDrvBlockMode
47	at MENUITEM.szHelp, dw g_szHelpDrvBlockMode
48	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_FLAGVALUE
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_szDlgDrvBlockMode
52	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
53	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
54	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_BLOCKMODE
55	iend
56
57	g_MenuitemMasterSlaveChsTranslateMode:
58	istruc MENUITEM
59	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
60	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
61	at MENUITEM.szName, dw g_szItemDrvXlateMode
62	at MENUITEM.szQuickInfo, dw g_szNfoDrvXlateMode
63	at MENUITEM.szHelp, dw g_szNfoDrvXlateMode
64	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MASKVALUE
65	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
66	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
67	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvXlateMode
68	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiseXlateMode
69	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForXlateMode
70	at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForXlateMode
71	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw MASK_DRVPARAMS_TRANSLATEMODE
72	at MENUITEM.itemValue + ITEM_VALUE.bFieldPosition, db TRANSLATEMODE_FIELD_POSITION
73	iend
74
75	g_MenuitemMasterSlaveWriteCache:
76	istruc MENUITEM
77	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
78	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
79	at MENUITEM.szName, dw g_szItemDrvWriteCache
80	at MENUITEM.szQuickInfo, dw g_szNfoDrvWriteCache
81	at MENUITEM.szHelp, dw g_szHelpDrvWriteCache
82	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MASKVALUE
83	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
84	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
85	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvWriteCache
86	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiseWrCache
87	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForWriteCache
88	at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForWriteCache
89	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw MASK_DRVPARAMS_WRITECACHE
90	at MENUITEM.itemValue + ITEM_VALUE.bFieldPosition, db 0
91	iend
92
93	g_MenuitemMasterSlaveUserCHS:
94	istruc MENUITEM
95	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
96	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
97	at MENUITEM.szName, dw g_szItemDrvUserCHS
98	at MENUITEM.szQuickInfo, dw g_szNfoDrvUserCHS
99	at MENUITEM.szHelp, dw g_szHelpDrvUserCHS
100	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MODIFY_MENU \| FLG_MENUITEM_FLAGVALUE
101	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
102	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
103	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserCHS
104	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
105	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
106	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERCHS
107	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteCHSFlag
108	iend
109
110	g_MenuitemMasterSlaveCylinders:
111	istruc MENUITEM
112	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
113	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
114	at MENUITEM.szName, dw g_szItemDrvCyls
115	at MENUITEM.szQuickInfo, dw g_szNfoDrvCyls
116	at MENUITEM.szHelp, dw g_szNfoDrvCyls
117	at MENUITEM.bFlags, db NULL
118	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
119	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
120	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvCyls
121	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
122	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw MAX_PCHS_CYLINDERS
123	%define MASTERSLAVE_CYLINDERS_DEFAULT 1024 ; Max L-CHS Cylinders
124	iend
125
126	g_MenuitemMasterSlaveHeads:
127	istruc MENUITEM
128	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
129	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
130	at MENUITEM.szName, dw g_szItemDrvHeads
131	at MENUITEM.szQuickInfo, dw g_szNfoDrvHeads
132	at MENUITEM.szHelp, dw g_szNfoDrvHeads
133	at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
134	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
135	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
136	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvHeads
137	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
138	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw MAX_PCHS_HEADS
139	%define MASTERSLAVE_HEADS_DEFAULT MAX_PCHS_HEADS
140	iend
141
142	g_MenuitemMasterSlaveSectors:
143	istruc MENUITEM
144	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
145	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
146	at MENUITEM.szName, dw g_szItemDrvSect
147	at MENUITEM.szQuickInfo, dw g_szNfoDrvSect
148	at MENUITEM.szHelp, dw g_szNfoDrvSect
149	at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
150	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
151	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
152	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvSect
153	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
154	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw MAX_PCHS_SECTORS_PER_TRACK
155	%define MASTERSLAVE_SECTORS_DEFAULT MAX_PCHS_SECTORS_PER_TRACK
156	iend
157
158	g_MenuitemMasterSlaveUserLBA:
159	istruc MENUITEM
160	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
161	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
162	at MENUITEM.szName, dw g_szItemDrvUserLBA
163	at MENUITEM.szQuickInfo, dw g_szNfoDrvUserLBA
164	at MENUITEM.szHelp, dw g_szHelpDrvUserLBA
165	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MODIFY_MENU \| FLG_MENUITEM_FLAGVALUE
166	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
167	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
168	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserLBA
169	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
170	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
171	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERLBA
172	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteLBAFlag
173	iend
174
175	g_MenuitemMasterSlaveUserLbaValue:
176	istruc MENUITEM
177	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
178	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
179	at MENUITEM.szName, dw g_szItemDrvLbaSectors
180	at MENUITEM.szQuickInfo, dw g_szNfoDrvLbaSectors
181	at MENUITEM.szHelp, dw g_szNfoDrvLbaSectors
182	at MENUITEM.bFlags, db NULL
183	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
184	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
185	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvLbaSectors
186	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 16 ; 8 GiB (but a little more than L-CHS limit)
187	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 10000000h / (1024 * 1024) ; Limit to 28-bit LBA
188	at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw ValueReaderForUserLbaValue
189	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw ValueWriterForUserLbaValue
190	%define MASTERSLAVE_USERLBA_DEFAULT 64 ; 32 GiB (max supported by Win95)
191	iend
192
193
194	g_rgwChoiceToValueLookupForWriteCache:
195	dw DEFAULT_WRITE_CACHE
196	dw DISABLE_WRITE_CACHE
197	dw ENABLE_WRITE_CACHE
198
199	g_rgszChoiceToStringLookupForWriteCache:
200	dw g_szValueBootDispModeDefault
201	dw g_szValueDrvWrCaDis
202	dw g_szValueDrvWrCaEn
203
204	g_rgwChoiceToValueLookupForXlateMode:
205	dw TRANSLATEMODE_NORMAL
206	dw TRANSLATEMODE_LARGE
207	dw TRANSLATEMODE_ASSISTED_LBA
208	dw TRANSLATEMODE_AUTO
209
210	g_rgszChoiceToStringLookupForXlateMode:
211	dw g_szValueDrvXlateNormal
212	dw g_szValueDrvXlateLarge
213	dw g_szValueDrvXlateLBA
214	dw g_szValueDrvXlateAuto
215
216
217	; Section containing code
218	SECTION .text
219
220	;--------------------------------------------------------------------
221	; MasterSlaveMenu_InitializeToDrvparamsOffsetInBX
222	; Parameters:
223	; SS:BP: Menu handle
224	; Returns:
225	; Nothing
226	; Corrupts registers:
227	; AX
228	;--------------------------------------------------------------------
229	ALIGN JUMP_ALIGN
230	MasterSlaveMenu_InitializeToDrvparamsOffsetInBX:
231	lea ax, [bx+DRVPARAMS.wFlags]
232	mov [cs:g_MenuitemMasterSlaveBlockModeTransfers+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
233	mov [cs:g_MenuitemMasterSlaveChsTranslateMode+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
234	mov [cs:g_MenuitemMasterSlaveWriteCache+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
235	mov [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
236	mov [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
237
238	lea ax, [bx+DRVPARAMS.wCylinders]
239	mov [cs:g_MenuitemMasterSlaveCylinders+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
240
241	lea ax, [bx+DRVPARAMS.bHeads]
242	mov [cs:g_MenuitemMasterSlaveHeads+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
243
244	lea ax, [bx+DRVPARAMS.bSect]
245	mov [cs:g_MenuitemMasterSlaveSectors+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
246
247	lea ax, [bx+DRVPARAMS.dwMaximumLBA]
248	mov [cs:g_MenuitemMasterSlaveUserLbaValue+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
249	ret
250
251
252	;--------------------------------------------------------------------
253	; MasterSlaveMenu_EnterMenuOrModifyItemVisibility
254	; Parameters:
255	; SS:BP: Menu handle
256	; Returns:
257	; Nothing
258	; Corrupts registers:
259	; All, except BP
260	;--------------------------------------------------------------------
261	ALIGN JUMP_ALIGN
262	MasterSlaveMenu_EnterMenuOrModifyItemVisibility:
263	push cs
264	pop ds
265	call .EnableOrDisableUserCHSandLBA
266	call .EnableOrDisableCHandS
267	call .EnableOrDisableUserLbaValue
268	mov si, g_MenupageForMasterSlaveMenu
269	jmp Menupage_ChangeToNewMenupageInDSSI
270
271
272	;--------------------------------------------------------------------
273	; .EnableOrDisableUserCHSandLBA
274	; Parameters:
275	; SS:BP: Menu handle
276	; Returns:
277	; Nothing
278	; Corrupts registers:
279	; AX, BX
280	;--------------------------------------------------------------------
281	ALIGN JUMP_ALIGN
282	.EnableOrDisableUserCHSandLBA:
283	mov bx, [g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
284	call Buffers_GetRomvarsValueToAXfromOffsetInBX
285	test ax, FLG_DRVPARAMS_USERLBA
286	jnz SHORT .DisableCHSandEnableLBA
287	test ax, FLG_DRVPARAMS_USERCHS
288	jnz SHORT .EnableCHSandDisableLBA
289
290	; Enable both
291	mov bx, g_MenuitemMasterSlaveUserCHS
292	call EnableMenuitemFromCSBX
293	mov bx, g_MenuitemMasterSlaveUserLBA
294	jmp SHORT .EnableMenuitemFromCSBX
295
296	ALIGN JUMP_ALIGN
297	.EnableCHSandDisableLBA:
298	mov bx, g_MenuitemMasterSlaveUserCHS
299	call EnableMenuitemFromCSBX
300	mov bx, g_MenuitemMasterSlaveUserLBA
301	jmp SHORT .DisableMenuitemFromCSBX
302
303	ALIGN JUMP_ALIGN
304	.DisableCHSandEnableLBA:
305	mov bx, g_MenuitemMasterSlaveUserLBA
306	call EnableMenuitemFromCSBX
307	mov bx, g_MenuitemMasterSlaveUserCHS
308	jmp SHORT .DisableMenuitemFromCSBX
309
310
311	;--------------------------------------------------------------------
312	; .EnableOrDisableCHandS
313	; Parameters:
314	; SS:BP: Menu handle
315	; Returns:
316	; Nothing
317	; Corrupts registers:
318	; AX, BX
319	;--------------------------------------------------------------------
320	ALIGN JUMP_ALIGN
321	.EnableOrDisableCHandS:
322	mov bx, [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
323	call Buffers_GetRomvarsValueToAXfromOffsetInBX
324	test ax, FLG_DRVPARAMS_USERCHS
325	jz SHORT .DisableCHandS
326	test ax, FLG_DRVPARAMS_USERLBA
327	jnz SHORT .DisableCHandS
328
329	mov bx, g_MenuitemMasterSlaveCylinders
330	call EnableMenuitemFromCSBX
331	mov bx, g_MenuitemMasterSlaveHeads
332	call EnableMenuitemFromCSBX
333	mov bx, g_MenuitemMasterSlaveSectors
334	jmp SHORT .EnableMenuitemFromCSBX
335
336	ALIGN JUMP_ALIGN
337	.DisableCHandS:
338	mov bx, g_MenuitemMasterSlaveCylinders
339	call DisableMenuitemFromCSBX
340	mov bx, g_MenuitemMasterSlaveHeads
341	call DisableMenuitemFromCSBX
342	mov bx, g_MenuitemMasterSlaveSectors
343	jmp SHORT .DisableMenuitemFromCSBX
344
345
346	;--------------------------------------------------------------------
347	; .EnableOrDisableUserLbaValue
348	; Parameters:
349	; SS:BP: Menu handle
350	; Returns:
351	; Nothing
352	; Corrupts registers:
353	; AX, BX
354	;--------------------------------------------------------------------
355	ALIGN JUMP_ALIGN
356	.EnableOrDisableUserLbaValue:
357	mov bx, [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
358	call Buffers_GetRomvarsValueToAXfromOffsetInBX
359	mov bx, g_MenuitemMasterSlaveUserLbaValue
360	test ax, FLG_DRVPARAMS_USERCHS
361	jnz SHORT .DisableMenuitemFromCSBX
362	test ax, FLG_DRVPARAMS_USERLBA
363	jz SHORT .DisableMenuitemFromCSBX
364	; Fall to .EnableMenuitemFromCSBX
365
366
367	;--------------------------------------------------------------------
368	; .EnableMenuitemFromCSBX
369	; .DisableMenuitemFromCSBX
370	; Parameters:
371	; CS:BX: Ptr to MENUITEM
372	; Returns:
373	; Nothing
374	; Corrupts registers:
375	; Nothing
376	;--------------------------------------------------------------------
377	ALIGN JUMP_ALIGN
378	.EnableMenuitemFromCSBX:
379	jmp EnableMenuitemFromCSBX
380
381	ALIGN JUMP_ALIGN
382	.DisableMenuitemFromCSBX:
383	jmp DisableMenuitemFromCSBX
384
385
386	;--------------------------------------------------------------------
387	; MENUITEM value reader functions
388	; Parameters:
389	; AX: Value from MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
390	; DS:SI: Ptr to MENUITEM
391	; ES:DI: Ptr to value variable
392	; Returns:
393	; AX: Value with possible modifications
394	; Corrupts registers:
395	; Nothing
396	;--------------------------------------------------------------------
397	ALIGN JUMP_ALIGN
398	ValueReaderForUserLbaValue:
399	push dx
400
401	mov ax, [es:di]
402	mov dx, [es:di+2] ; DX:AX now holds user defined LBA28 limit
403	add ax, BYTE 1 ; Increment by one
404	adc dx, BYTE 0
405
406	xchg ax, dx ; SHR 16
407	eSHR_IM ax, 4 ; SHR 4 => AX = DX:AX / (1024*1024)
408
409	pop dx
410	ret
411
412
413	;--------------------------------------------------------------------
414	; MENUITEM value writer functions
415	; Parameters:
416	; AX: Value to be written to MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
417	; DS:SI: Ptr to MENUITEM
418	; ES:DI: Ptr to value variable
419	; Returns:
420	; AX: Value to be stored
421	; Corrupts registers:
422	; Nothing
423	;--------------------------------------------------------------------
424	ALIGN JUMP_ALIGN
425	ValueWriterForUserLbaValue:
426	push dx
427
428	xor dx, dx
429	eSHL_IM ax, 4
430	xchg dx, ax ; DX:AX now holds AX * 1024 * 1024
431
432	sub ax, BYTE 1 ; Decrement DX:AX by one
433	sbb dx, BYTE 0 ; (necessary since maximum LBA28 sector count is 0FFF FFFFh)
434
435	mov [es:di+2], dx ; Store DX by ourselves
436	pop dx
437	ret ; AX will be stored by our menu system
438
439	;
440	; No change to CHS flag, but we use this opportunity to change defaults stored in the CHS values if we are
441	; changing in/out of user CHS settings (since we use these bytes in different ways with the LBA setting).
442	;
443	ALIGN JUMP_ALIGN
444	MasterSlaveMenu_WriteCHSFlag:
445	test word [es:di], FLG_DRVPARAMS_USERCHS
446	jnz .alreadySet
447
448	push ax
449	push di
450	push si
451
452	mov ax, MASTERSLAVE_CYLINDERS_DEFAULT
453	mov si, g_MenuitemMasterSlaveCylinders
454	call Menuitem_StoreValueFromAXtoMenuitemInDSSI
455
456	mov ax, MASTERSLAVE_HEADS_DEFAULT
457	mov si, g_MenuitemMasterSlaveHeads
458	call Menuitem_StoreValueFromAXtoMenuitemInDSSI
459
460	mov ax, MASTERSLAVE_SECTORS_DEFAULT
461	mov si, g_MenuitemMasterSlaveSectors
462	call Menuitem_StoreValueFromAXtoMenuitemInDSSI
463
464	pop si
465	pop di
466	pop ax
467
468	.alreadySet:
469	ret
470
471	;
472	; No change to LBA flag, but we use this opportunity to change defaults stored in the LBA value if we are
473	; changing in/out of user LBA settings (since we use these bytes in different ways with the CHS setting).
474	;
475	ALIGN JUMP_ALIGN
476	MasterSlaveMenu_WriteLBAFlag:
477	test word [es:di], FLG_DRVPARAMS_USERLBA
478	jnz .alreadySet
479
480	push ax
481	push di
482	push si
483
484	mov ax, MASTERSLAVE_USERLBA_DEFAULT
485	mov si, g_MenuitemMasterSlaveUserLbaValue
486	call Menuitem_StoreValueFromAXtoMenuitemInDSSI
487
488	pop si
489	pop di
490	pop ax
491
492	.alreadySet:
493	ret

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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/MasterSlaveMenu.asm@ 575

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