source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm@ 38

Last change on this file since 38 was 32, checked in by Tomi Tilli, 14 years ago

Correct number of drives is now returned from AH=08h even when it is redirected to foreign BIOS.
File size: 16.0 KB
RevLine 
[3]1; File name : BootMenuPrint.asm
2; Project name : IDE BIOS
3; Created date : 26.3.2010
[32]4; Last update : 3.8.2010
[3]5; Author : Tomi Tilli
6; Description : Functions for printing boot menu strings.
7
8; Section containing code
9SECTION .text
10
11;--------------------------------------------------------------------
12; Prints information strings to the bottom of the screen.
13;
14; BootMenuPrint_TheBottomOfScreen
15; Parameters:
16; DS: RAMVARS segment
17; Returns:
18; Nothing
19; Corrupts registers:
20; AX, BX, CX, DX, SI
21;--------------------------------------------------------------------
22ALIGN JUMP_ALIGN
23BootMenuPrint_TheBottomOfScreen:
24 call FloppyDrive_GetCount
25 mov bl, cl ; Floppy Drive count to BL
[32]26 call RamVars_GetHardDiskCountFromBDAtoCX
[3]27 mov bh, cl ; Hard Disk count to BH
28 call BootMenuPrint_GetCoordinatesForBottomStrings
29 call BootMenuPrint_SetCursorPosition
30 call BootMenuPrint_FloppyHotkeyString
31 jmp BootMenuPrint_HardDiskHotkeyString
32
33
34;--------------------------------------------------------------------
35; Returns coordinates for bottom strings.
36;
37; BootMenuPrint_GetCoordinatesForBottomStrings
38; Parameters:
39; BL: Number of floppy drives in system
40; BH: Number of hard disks in system
41; Returns:
42; DL: Cursor X coordinate
43; DH: Cursor Y coordinate
44; Corrupts registers:
45; AX
46;--------------------------------------------------------------------
47ALIGN JUMP_ALIGN
48BootMenuPrint_GetCoordinatesForBottomStrings:
49 mov dx, 1800h ; (0, 24)
50 xor ax, ax ; Zero AX
51 sub al, bl ; Set CF if any floppy drives
52 sbb dh, 0 ; Decrement Y-coordinate if necessary
53 sub ah, bh ; Set CF if any hard disks
54 sbb dh, 0 ; Decrement Y-coordinate if necessary
55 ret
56
57
58;--------------------------------------------------------------------
59; Sets cursor to wanted screen coordinates.
60;
61; BootMenuPrint_SetCursorPosition
62; Parameters:
63; DL: Cursor X coordinate
64; DH: Cursor Y coordinate
65; Returns:
66; Nothing
67; Corrupts registers:
68; AX
69;--------------------------------------------------------------------
70ALIGN JUMP_ALIGN
71BootMenuPrint_SetCursorPosition:
72 push bx
73 call MenuCrsr_SetCursor
74 pop bx
75 ret
76
77
78;--------------------------------------------------------------------
79; Prints Floppy Drive hotkey string.
80;
81; BootMenuPrint_FloppyHotkeyString
82; Parameters:
83; BL: Number of floppy drives in system
84; Returns:
85; Nothing
86; Corrupts registers:
87; AX, CX, DX, SI
88;--------------------------------------------------------------------
89ALIGN JUMP_ALIGN
90BootMenuPrint_FloppyHotkeyString:
91 test bl, bl ; Any floppy drives?
92 jz .Return
93 ePUSH_T ax, g_szHDD
94 ePUSH_T ax, g_szFDD
95 mov ax, 'A'-1
96 add al, bl ; Last Floppy Drive letter
97 push ax
98 ePUSH_T ax, 'A'
99 jmp SHORT BootMenuPrint_HotkeyString
100.Return:
101 ret
102
103;--------------------------------------------------------------------
104; Prints Floppy Drive or Hard Disk hotkey string when
105; parameters are pushed to stack.
106;
107; BootMenuPrint_HotkeyString
108; Parameters:
109; Stack: String formatting parameters
110; Returns:
111; Nothing
112; Corrupts registers:
113; AX, CX, DX, SI
114;--------------------------------------------------------------------
115ALIGN JUMP_ALIGN
116BootMenuPrint_HotkeyString:
117 mov si, g_szBottomScrn
118 mov dh, 8 ; 8 bytes pushed to stack
119 jmp PrintString_JumpToFormat
120
121
122;--------------------------------------------------------------------
123; Prints Hard Disk hotkey string.
124;
125; BootMenuPrint_FloppyHotkeyString
126; Parameters:
127; BH: Number of hard disks in system
128; Returns:
129; Nothing
130; Corrupts registers:
131; AX, CX, DX, SI
132;--------------------------------------------------------------------
133ALIGN JUMP_ALIGN
134BootMenuPrint_HardDiskHotkeyString:
135 test bh, bh ; Any hard disks?
136 jz .Return
137 ePUSH_T ax, g_szFDD
138 ePUSH_T ax, g_szHDD
139 call BootMenu_GetLetterForFirstHardDisk
140 eMOVZX ax, bh ; Hard disk count to AX
141 add ax, cx ; One past last hard disk letter
142 dec ax ; Last hard disk letter
143 push ax
144 push cx
145 jmp SHORT BootMenuPrint_HotkeyString
146.Return:
147 ret
148
149
150;--------------------------------------------------------------------
151; Clears screen.
152;
153; BootMenuPrint_ClearScreen
154; Parameters:
155; Nothing
156; Returns:
157; Nothing
158; Corrupts registers:
159; AX, BX, DX
160;--------------------------------------------------------------------
161ALIGN JUMP_ALIGN
162BootMenuPrint_ClearScreen:
163 push cx
164 call MenuDraw_ClrScr
165 pop cx
166 ret
167
168
169;--------------------------------------------------------------------
170; Translates and prints drive number.
171;
172; BootMenuPrint_TranslatedDriveNumber
173; Parameters:
174; DL: Untranslated drive number
175; DS: RAMVARS segment
176; Returns:
177; Nothing
178; Corrupts registers:
179; AX, DI
180;--------------------------------------------------------------------
181ALIGN JUMP_ALIGN
182BootMenuPrint_TranslatedDriveNumber:
183 push dx
184 call DriveXlate_ToOrBack
185 mov al, dl ; Drive number to AL
186 call Print_IntHexB
187 mov dl, ' '
188 PRINT_CHAR ; Print space
189 pop dx
190 ret
191
192
193;--------------------------------------------------------------------
194; Prints Floppy Drive Menuitem string.
195;
196; BootMenuPrint_FloppyMenuitem
197; Parameters:
198; DL: Untranslated Floppy Drive number
199; Returns:
200; AX: 1 if drive number was valid
201; 0 if drive number was invalid
202; Corrupts registers:
203; CX, DX, SI
204;--------------------------------------------------------------------
205ALIGN JUMP_ALIGN
206BootMenuPrint_FloppyMenuitem:
207 ePUSH_T ax, BootMenuPrint_HardDiskPrinted ; Return address
208 add dl, 'A' ; Number to letter
209 push dx
210 ePUSH_T ax, g_szFloppyDrv
211 mov si, g_szFDLetter
212 mov dh, 4 ; 4 bytes pushed to stack
213 jmp PrintString_JumpToFormat
214
215
216;--------------------------------------------------------------------
217; Prints Hard Disk Menuitem string.
218;
219; BootMenuPrint_HardDiskMenuitem
220; Parameters:
221; DL: Untranslated Hard Disk number
222; DS: RAMVARS segment
223; Returns:
224; AX: 1 if drive number was valid
225; 0 if drive number was invalid
226; Corrupts registers:
227; CX, DX, SI, ES
228;--------------------------------------------------------------------
229ALIGN JUMP_ALIGN
230BootMenuPrint_HardDiskMenuitem:
231 ePUSH_T ax, BootMenuPrint_HardDiskPrinted
232 call FindDPT_ForDriveNumber ; DS:DI to point DPT
233 jnc SHORT BootMenuPrint_HardDiskMenuitemForForeignDrive
234 jmp SHORT BootMenuPrint_HardDiskMenuitemForOurDrive
235ALIGN JUMP_ALIGN
236BootMenuPrint_HardDiskPrinted:
237 mov ax, 1
238 ret
239
240;--------------------------------------------------------------------
241; Prints Hard Disk Menuitem string for drive that is handled by
242; some another BIOS.
243;
244; BootMenuPrint_HardDiskMenuitemForForeignDrive
245; Parameters:
246; DL: Untranslated Hard Disk number
247; DS: RAMVARS segment
248; Returns:
249; AX: 1 if drive number was valid
250; 0 if drive number was invalid
251; Corrupts registers:
252; CX, DX, SI
253;--------------------------------------------------------------------
254ALIGN JUMP_ALIGN
255BootMenuPrint_HardDiskMenuitemForForeignDrive:
256 mov si, g_szforeignHD
257 jmp PrintString_FromCS
258
259;--------------------------------------------------------------------
260; Prints Hard Disk Menuitem string for drive that is handled by our BIOS.
261;
262; BootMenuPrint_HardDiskMenuitemForOurDrive
263; Parameters:
264; DL: Untranslated Hard Disk number
265; DS: RAMVARS segment
266; Returns:
267; AX: 1 if drive number was valid
268; 0 if drive number was invalid
269; Corrupts registers:
270; CX, DX, SI, ES
271;--------------------------------------------------------------------
272ALIGN JUMP_ALIGN
273BootMenuPrint_HardDiskMenuitemForOurDrive:
274 call BootInfo_GetOffsetToBX
275 LOAD_BDA_SEGMENT_TO es, ax
276 lea si, [bx+BOOTNFO.szDrvName]
277 jmp PrintString_FromES
278
279
280;--------------------------------------------------------------------
281; Prints Function Menuitem string.
282;
283; BootMenuPrint_FunctionMenuitem
284; Parameters:
285; DX: Function ID
286; Returns:
287; AX: 1 if function ID was valid
288; 0 if function ID was invalid
289; Corrupts registers:
290; DX, SI
291;--------------------------------------------------------------------
292ALIGN JUMP_ALIGN
293BootMenuPrint_FunctionMenuitem:
294 test dx, dx ; ID_BOOTFUNC_ROMBOOT
295 jz SHORT .PrintRomBootMenuitem
296 xor ax, ax ; Event not processed
297 ret
298
299ALIGN JUMP_ALIGN
300.PrintRomBootMenuitem:
301 mov si, g_szRomBoot
302 ; Fall to .PrintAndReturn
303
304ALIGN JUMP_ALIGN
305.PrintAndReturn:
306 call PrintString_FromCS
307 mov ax, 1 ; Event processed
308 ret
309
310
311;--------------------------------------------------------------------
312; Prints Floppy Drive Menuitem information strings.
313;
314; BootMenuPrint_FloppyMenuitemInformation
315; Parameters:
316; DL: Untranslated Floppy Drive number
317; DS: RAMVARS segment
318; Returns:
319; AX: 1 if drive number was valid
320; 0 if drive number was invalid
321; Corrupts registers:
322; BX, CX, DX, SI, DI, ES
323;--------------------------------------------------------------------
324ALIGN JUMP_ALIGN
325BootMenuPrint_FloppyMenuitemInformation:
326 call FloppyDrive_GetType ; Get Floppy Drive type to BX
327 ePUSH_T ax, BootMenuPrint_ClearThreeInfoLines ; New return address
328 test bx, bx ; Two possibilities? (FLOPPY_TYPE_525_OR_35_DD)
329 jz SHORT BootMenuPrint_PrintXTFloppyType
330 cmp bl, FLOPPY_TYPE_35_ED
331 ja SHORT BootMenuPrint_PrintUnknownFloppyType
332 jmp SHORT BootMenuPrint_PrintKnownFloppyType
333
334;--------------------------------------------------------------------
335; Prints Menuitem information string for two possible XT floppy drives.
336;
337; BootMenuPrint_PrintXTFloppyType
338; Parameters:
339; Nothing
340; Returns:
341; Nothing
342; Corrupts registers:
343; CX, DX, SI
344;--------------------------------------------------------------------
345ALIGN JUMP_ALIGN
346BootMenuPrint_PrintXTFloppyType:
347 mov si, g_szFddSizeOr
348 jmp SHORT BootMenuPrint_FormatUnknownFloppyType
349
350;--------------------------------------------------------------------
351; Prints Menuitem information string for unknown floppy drive type.
352;
353; BootMenuPrint_PrintUnknownFloppyType
354; Parameters:
355; Nothing
356; Returns:
357; Nothing
358; Corrupts registers:
359; CX, DX, SI
360;--------------------------------------------------------------------
361ALIGN JUMP_ALIGN
362BootMenuPrint_PrintUnknownFloppyType:
363 mov si, g_szFddUnknown
364BootMenuPrint_FormatUnknownFloppyType:
365 ePUSH_T ax, g_szCapacity
366 mov dh, 2 ; 2 bytes pushed to stack
367 jmp PrintString_JumpToFormat
368
369;--------------------------------------------------------------------
370; Prints Menuitem information string for known floppy drive type.
371;
372; BootMenuPrint_PrintKnownFloppyType
373; Parameters:
374; BX: Floppy drive type
375; Returns:
376; Nothing
377; Corrupts registers:
378; CX, DX, SI
379;--------------------------------------------------------------------
380ALIGN JUMP_ALIGN
381BootMenuPrint_PrintKnownFloppyType:
382 dec bx ; Cannot be 0 (FLOPPY_TYPE_525_OR_35_DD)
383 shl bx, 1 ; Shift for WORD lookup
384 push WORD [cs:bx+.rgwCapacity]
385 mov ax, [cs:bx+.rgwPhysicalSize]
386 push ax ; '1/4' or '1/2'
387 mov al, ah
388 push ax ; '5' or '3'
389 ePUSH_T ax, g_szCapacity
390 mov si, g_szFddSize
391 mov dh, 8 ; 8 bytes pushed to stack
392 jmp PrintString_JumpToFormat
393ALIGN WORD_ALIGN
394.rgwCapacity:
395 dw 360
396 dw 1200
397 dw 720
398 dw 1440
399 dw 2880
400 dw 2880
401.rgwPhysicalSize:
402 db 172, '5' ; 1, FLOPPY_TYPE_525_DD
403 db 172, '5' ; 2, FLOPPY_TYPE_525_HD
404 db 171, '3' ; 3, FLOPPY_TYPE_35_DD
405 db 171, '3' ; 4, FLOPPY_TYPE_35_HD
406 db 171, '3' ; 5, 3.5" ED on some BIOSes
407 db 171, '3' ; 6, FLOPPY_TYPE_35_ED
408
409
410;--------------------------------------------------------------------
411; Clears remaining characters from current information line
412; and clears following lines.
413;
414; BootMenuPrint_ClearThreeInfoLines
415; BootMenuPrint_ClearTwoInfoLines
416; BootMenuPrint_ClearOneInfoLine
417; Parameters:
418; Nothing
419; Returns:
420; AX: 1
421; Corrupts registers:
422; BX, DX
423;--------------------------------------------------------------------
424ALIGN JUMP_ALIGN
425BootMenuPrint_ClearThreeInfoLines:
426 call MenuDraw_NewlineStrClrLn
427ALIGN JUMP_ALIGN
428BootMenuPrint_ClearTwoInfoLines:
429 call MenuDraw_NewlineStrClrLn
430ALIGN JUMP_ALIGN
431BootMenuPrint_ClearOneInfoLine:
432 call MenuDraw_NewlineStrClrLn
433 mov ax, 1
434 ret
435
436
437;--------------------------------------------------------------------
438; Prints Hard Disk Menuitem information strings.
439;
440; BootMenuPrint_HardDiskMenuitemInformation
441; Parameters:
442; DL: Untranslated Hard Disk number
443; DS: RAMVARS segment
444; Returns:
445; AX: 1 if drive number was valid
446; 0 if drive number was invalid
447; Corrupts registers:
448; BX, CX, DX, SI, DI, ES
449;--------------------------------------------------------------------
450ALIGN JUMP_ALIGN
451BootMenuPrint_HardDiskMenuitemInformation:
452 ePUSH_T ax, BootMenuPrint_HardDiskPrinted
453 call FindDPT_ForDriveNumber ; DS:DI to point DPT
454 jnc SHORT BootMenuPrint_HardDiskMenuitemInfoForForeignDrive
455 call BootMenuPrint_HardDiskMenuitemInfoSizeForOurDrive
456 jmp BootMenuPrintCfg_ForOurDrive
457
458;--------------------------------------------------------------------
459; Prints Hard Disk Menuitem information strings for drive that
460; is handled by some other BIOS.
461;
462; BootMenuPrint_HardDiskMenuitemInfoForForeignDrive
463; Parameters:
464; DL: Untranslated Hard Disk number
465; DS: RAMVARS segment
466; Returns:
467; Nothing
468; Corrupts registers:
469; AX, BX, CX, DX, SI, DI
470;--------------------------------------------------------------------
471ALIGN JUMP_ALIGN
472BootMenuPrint_HardDiskMenuitemInfoForForeignDrive:
473 call DriveXlate_ToOrBack
474 call HCapacity_GetSectorCountFromForeignAH08h
475 call HCapacity_ConvertSectorCountToSize
476 ePUSH_T dx, BootMenuPrint_ClearThreeInfoLines ; Return address
477 push cx ; Magnitude character
478 push si ; Tenths
479 push ax ; Size in magnitude
480 ePUSH_T ax, g_szCapacity ; "Capacity"
481 mov si, g_szSizeSingle
482 mov dh, 8 ; 8 bytes pushed to stack
483 jmp PrintString_JumpToFormat
484
485;--------------------------------------------------------------------
486; Prints Hard Disk Menuitem information size string for drive that
487; is handled by our BIOS.
488;
489; BootMenuPrint_HardDiskMenuitemInfoSizeForOurDrive
490; Parameters:
491; DL: Untranslated Hard Disk number
492; DS:DI: Ptr to DPT
493; Returns:
494; Nothing
495; Corrupts registers:
496; AX, BX, CX, DX, SI, ES
497;--------------------------------------------------------------------
498ALIGN JUMP_ALIGN
499BootMenuPrint_HardDiskMenuitemInfoSizeForOurDrive:
500 ePUSH_T ax, BootMenuPrint_ClearOneInfoLine ; Return address
501
502 ; Get and push total LBA size
503 call BootInfo_GetTotalSectorCount
504 call HCapacity_ConvertSectorCountToSize
505 push cx ; Magnitude character
506 push si ; Tenths
507 push ax ; Size in magnitude
508
509 ; Get and push L-CHS size
510 mov dl, [di+DPT.bDrvNum] ; Restore drive number
511 call HCapacity_GetSectorCountFromOurAH08h
512 call HCapacity_ConvertSectorCountToSize
513 push cx ; Magnitude character
514 push si ; Tenths
515 push ax ; Size in magnitude
516
517 ePUSH_T ax, g_szCapacity ; "Capacity"
518 mov si, g_szSizeDual
519 mov dh, 14 ; 14 bytes pushed to stack
520 jmp PrintString_JumpToFormat
521
522
523;--------------------------------------------------------------------
524; Prints Function Menuitem information strings.
525;
526; BootMenuPrint_HardDiskMenuitemInformation
527; Parameters:
528; DX: Function ID
529; DS: RAMVARS segment
530; Returns:
531; AX: 1 if function ID was valid
532; 0 if function ID was valid
533; Corrupts registers:
534; BX, DX
535;--------------------------------------------------------------------
536ALIGN JUMP_ALIGN
537BootMenuPrint_FunctionMenuitemInformation:
538 jmp SHORT BootMenuPrint_ClearThreeInfoLines
539
540
541;--------------------------------------------------------------------
542; Prints Boot Menu title strings.
543;
544; BootMenuPrint_TitleStrings
545; Parameters:
546; Nothing
547; Returns:
548; AX: Was printing successfull
549; Corrupts registers:
550; BX, DX, SI
551;--------------------------------------------------------------------
552ALIGN JUMP_ALIGN
553BootMenuPrint_TitleStrings:
554 mov si, ROMVARS.szTitle
555 call PrintString_FromCS
556 call BootMenuPrint_ClearOneInfoLine
557 mov si, ROMVARS.szVersion
558 call PrintString_FromCS
559 call BootMenuPrint_ClearOneInfoLine
560 mov si, g_szTitleLn3
561 call PrintString_FromCS
562 jmp SHORT BootMenuPrint_ClearOneInfoLine
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