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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm@ 242

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Last change on this file since 242 was 241, checked in by gregli@…, 13 years ago
Space optimizations in the Boot Menu and BootInfo routines, taking advantage of nested %s. Optimization in the init of RamVars to avoid writing the signature twice. Preparing for addition of serial floppy support, starting to break the assumption that our drives are always 80h or higher.
File size: 13.0 KB

Rev	Line
[88]	1	; Project name : XTIDE Universal BIOS
[3]	2	; Description : Functions for printing boot menu strings.
	3
	4	; Section containing code
	5	SECTION .text
	6
	7	;--------------------------------------------------------------------
[241]	8	; BootMenuPrint_RefreshItem
	9	;
[189]	10	; Parameters:
	11	; DL: Untranslated Floppy Drive number
	12	; Returns:
	13	; Nothing
	14	; Corrupts registers:
[241]	15	; AX, BX, DX, SI, DI
[189]	16	;--------------------------------------------------------------------
	17	ALIGN JUMP_ALIGN
[241]	18	BootMenuPrint_RefreshItem:
	19	call BootMenu_GetDriveToDXforMenuitemInCX_And_RamVars_GetSegmentToDS
	20	jnc BootMenuEvent_EventCompleted ; if no menu item selected, out we go
	21
[189]	22	push bp
	23	mov bp, sp
	24
[241]	25	call RamVars_IsDriveHandledByThisBIOS
	26	jnc .notOurs
	27
	28	call FindDPT_ForDriveNumber ; if it is one of ours, print the string in bootnfo
	29	call BootInfo_ConvertDPTtoBX
	30	mov si, g_szDriveNumBOOTNFO ; special g_szDriveNum that prints from BDA
	31	jmp .go
[189]	32
[241]	33	.notOurs:
	34	mov si,g_szDriveNum
	35	mov bx,g_szForeignHD ; assume a hard disk for the moment
	36
	37	test dl,80h
	38	js .go
	39	mov bl,((g_szFloppyDrv)-$$ & 0xff) ; and revisit the earlier assumption...
	40
	41	.go:
	42	mov ax, dx ; preserve DL for the floppy drive letter addition
	43	call DriveXlate_ToOrBack
	44	push dx ; translated drive number
	45	push bx ; sub string
	46	add al, 'A' ; floppy drive letter (we always push this although
	47	push ax ; the hard disks don't ever use it, but it does no harm)
	48
	49	jmp short BootMenuPrint_FormatCSSIfromParamsInSSBP
[130]	50
	51	;--------------------------------------------------------------------
[88]	52	; Prints Boot Menu title strings.
[3]	53	;
[88]	54	; BootMenuPrint_TitleStrings
[3]	55	; Parameters:
[88]	56	; Nothing
[3]	57	; Returns:
[88]	58	; CF: Set since menu event handled
[3]	59	; Corrupts registers:
[88]	60	; AX, SI, DI
[3]	61	;--------------------------------------------------------------------
	62	ALIGN JUMP_ALIGN
[88]	63	BootMenuPrint_TitleStrings:
	64	mov si, ROMVARS.szTitle
[96]	65	call BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
	66	CALL_DISPLAY_LIBRARY PrintNewlineCharacters
[88]	67	mov si, ROMVARS.szVersion
[161]	68	; Fall to BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
[3]	69
	70	;--------------------------------------------------------------------
[128]	71	; BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
	72	; Parameters:
	73	; CS:SI: Ptr to NULL terminated string to print
	74	; Returns:
	75	; CF: Set since menu event was handled successfully
	76	; Corrupts registers:
[186]	77	; AX, DI
[128]	78	;--------------------------------------------------------------------
	79	ALIGN JUMP_ALIGN
	80	BootMenuPrint_NullTerminatedStringFromCSSIandSetCF:
[186]	81	;
	82	; We send all CSSI strings through the Format routine for the case of
	83	; compressed strings, but this doesn't hurt in the non-compressed case either
	84	; (perhaps a little slower, but shouldn't be noticeable to the user)
	85	; and results in smaller code size.
	86	;
	87	push bp
	88	mov bp,sp
[192]	89	jmp short BootMenuPrint_FormatCSSIfromParamsInSSBP
[128]	90
[192]	91
[128]	92	;--------------------------------------------------------------------
[3]	93	; BootMenuPrint_FloppyMenuitemInformation
	94	; Parameters:
	95	; DL: Untranslated Floppy Drive number
	96	; DS: RAMVARS segment
	97	; Returns:
[88]	98	; CF: Set since menu event was handled successfully
[3]	99	; Corrupts registers:
[88]	100	; AX, BX, CX, DX, SI, DI, ES
[3]	101	;--------------------------------------------------------------------
[192]	102
[241]	103	ALIGN JUMP_ALIGN
	104	BootMenuPrint_RefreshInformation:
	105	CALL_MENU_LIBRARY ClearInformationArea
[192]	106
[241]	107	call BootMenu_GetDriveToDXforMenuitemInCX_And_RamVars_GetSegmentToDS
	108	jnc BootMenuEvent_EventCompleted ; if no menu selection, abort
[182]	109
[161]	110	push bp
	111	mov bp, sp
[241]	112
	113	test dl, dl ; are we a hard disk?
	114	js BootMenuPrint_HardDiskRefreshInformation
[182]	115
[241]	116	call FloppyDrive_GetType ; Get Floppy Drive type to BX
[182]	117
[241]	118	mov cx, g_szFddSizeOr ; .PrintXTFloppyType
	119	test bx, bx ; Two possibilities? (FLOPPY_TYPE_525_OR_35_DD)
	120	jz SHORT BootMenuPrint_HardDiskRefreshInformation.output
	121
	122	mov cl, (g_szFddUnknown - $$) & 0xff ; .PrintUnknownFloppyType
[3]	123	cmp bl, FLOPPY_TYPE_35_ED
[241]	124	ja SHORT BootMenuPrint_HardDiskRefreshInformation.output
[182]	125
[161]	126	; Fall to .PrintKnownFloppyType
[3]	127
	128	;--------------------------------------------------------------------
[161]	129	; .PrintKnownFloppyType
[3]	130	; Parameters:
[161]	131	; BX: Floppy drive type
[3]	132	; Returns:
[88]	133	; CF: Set since menu event was handled successfully
[3]	134	; Corrupts registers:
[161]	135	; AX, BX, SI, DI
[182]	136	;
	137	; Floppy Drive Types:
	138	;
	139	; 0 Handled above
	140	; 1 FLOPPY_TYPE_525_DD 5 1/4 360K
	141	; 2 FLOPPY_TYPE_525_HD 5 1/4 1.2M
	142	; 3 FLOPPY_TYPE_35_DD 3 1/2 720K
	143	; 4 FLOPPY_TYPE_35_HD 3 1/2 1.44M
	144	; 5 3.5" ED on some BIOSes 3 1/2 2.88M
	145	; 6 FLOPPY_TYPE_35_ED 3 1/2 2.88M
	146	; >6 Unknwon, handled above
	147	;
[3]	148	;--------------------------------------------------------------------
[161]	149	.PrintKnownFloppyType:
[241]	150	mov cl, (g_szFddSize - $$) & 0xff
	151	push cx
[182]	152
[241]	153	mov cl, (g_szFddThreeHalf - $$) & 0xff
[182]	154	cmp bl, FLOPPY_TYPE_525_HD
	155	ja .ThreeHalf
[241]	156	mov cl, (g_szFddFiveQuarter - $$) & 0xff
[182]	157	.ThreeHalf:
[241]	158	push cx ; "5 1/4" or "3 1/2"
[3]	159
[182]	160	mov al,FloppyTypes.rgbCapacityMultiplier
	161	mul byte [cs:bx+FloppyTypes.rgbCapacity - 1] ; -1 since 0 is handled above and not in the table
	162	push ax
[161]	163
[241]	164	jmp short BootMenuPrint_HardDiskRefreshInformation.output
[88]	165
[192]	166
	167	;--------------------------------------------------------------------
[3]	168	; Prints Hard Disk Menuitem information strings.
	169	;
	170	; BootMenuPrint_HardDiskMenuitemInformation
	171	; Parameters:
	172	; DL: Untranslated Hard Disk number
	173	; DS: RAMVARS segment
	174	; Returns:
[88]	175	; CF: Set since menu event was handled successfully
[3]	176	; Corrupts registers:
	177	; BX, CX, DX, SI, DI, ES
	178	;--------------------------------------------------------------------
	179	ALIGN JUMP_ALIGN
[241]	180	BootMenuPrint_HardDiskRefreshInformation:
[150]	181	call RamVars_IsDriveHandledByThisBIOS
	182	jnc SHORT .HardDiskMenuitemInfoForForeignDrive
[241]	183	call FindDPT_ForDriveNumber ; DS:DI to point DPT
[127]	184	; Fall to .HardDiskMenuitemInfoForOurDrive
[3]	185
	186	;--------------------------------------------------------------------
[127]	187	; .HardDiskMenuitemInfoForOurDrive
[3]	188	; Parameters:
	189	; DL: Untranslated Hard Disk number
[127]	190	; DS:DI: Ptr to DPT
[3]	191	; Returns:
[127]	192	; Nothing
[3]	193	; Corrupts registers:
[127]	194	; AX, BX, CX, DX, SI, DI, ES
[3]	195	;--------------------------------------------------------------------
[127]	196	.HardDiskMenuitemInfoForOurDrive:
[241]	197	ePUSH_T ax, g_szSizeDual
	198
[127]	199	; Get and push L-CHS size
[150]	200	call AH15h_GetSectorCountToDXAX
[88]	201	call ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
	202
[127]	203	; Get and push total LBA size
	204	call BootInfo_GetTotalSectorCount
[241]	205	call ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
	206	jmp BootMenuPrintCfg_ForOurDrive
	207
[3]	208	;--------------------------------------------------------------------
[127]	209	; .HardDiskMenuitemInfoForForeignDrive
[3]	210	; Parameters:
	211	; DL: Untranslated Hard Disk number
[127]	212	; DS: RAMVARS segment
[3]	213	; Returns:
[127]	214	; CF: Set since menu event was handled successfully
[3]	215	; Corrupts registers:
[127]	216	; AX, BX, CX, DX, SI, DI
[3]	217	;--------------------------------------------------------------------
	218	ALIGN JUMP_ALIGN
[127]	219	.HardDiskMenuitemInfoForForeignDrive:
	220	call DriveXlate_ToOrBack
[150]	221	call AH15h_GetSectorCountFromForeignDriveToDXAX
[88]	222	call ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
	223
[241]	224	ALIGN JUMP_ALIGN
	225	.output:
	226	mov si, g_szCapacity
	227	;;; fall-through
[3]	228
	229	;--------------------------------------------------------------------
[241]	230	; BootMenuPrint_FormatCSSIfromParamsInSSBP
[88]	231	; Parameters:
[241]	232	; CS:SI: Ptr to string to format
	233	; BP: SP before pushing parameters
[88]	234	; Returns:
[241]	235	; BP: Popped from stack
	236	; CF: Set since menu event was handled successfully
[88]	237	; Corrupts registers:
[120]	238	; AX, DI
[88]	239	;--------------------------------------------------------------------
	240	ALIGN JUMP_ALIGN
[241]	241	BootMenuPrint_FormatCSSIfromParamsInSSBP:
	242	CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
	243	stc ; Successfull return from menu event
	244	pop bp
[88]	245	ret
[192]	246
[241]	247
[88]	248	;--------------------------------------------------------------------
[192]	249	; BootMenuPrint_ClearScreen
[88]	250	; Parameters:
[192]	251	; Nothing
[88]	252	; Returns:
[192]	253	; Nothing
[88]	254	; Corrupts registers:
[192]	255	; AX, DI
[88]	256	;--------------------------------------------------------------------
	257	ALIGN JUMP_ALIGN
[192]	258	BootMenuPrint_ClearScreen:
	259	call BootMenuPrint_InitializeDisplayContext
	260	xor ax, ax
	261	CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
	262	mov ax, ' ' \| (MONO_NORMAL<<8)
	263	CALL_DISPLAY_LIBRARY ClearScreenWithCharInALandAttrInAH
	264	ret
[88]	265
	266
	267	;--------------------------------------------------------------------
	268	; BootMenuPrint_TheBottomOfScreen
[3]	269	; Parameters:
	270	; DS: RAMVARS segment
	271	; Returns:
[88]	272	; Nothing
[3]	273	; Corrupts registers:
[92]	274	; AX, BX, CX, DX, SI, DI
[3]	275	;--------------------------------------------------------------------
	276	ALIGN JUMP_ALIGN
[88]	277	BootMenuPrint_TheBottomOfScreen:
[124]	278	call FloppyDrive_GetCountToCX
[88]	279	mov bl, cl ; Floppy Drive count to BL
	280	call RamVars_GetHardDiskCountFromBDAtoCX
	281	mov bh, cl ; Hard Disk count to BH
[92]	282	; Fall to .MoveCursorToHotkeyStrings
[3]	283
[92]	284	;--------------------------------------------------------------------
	285	; .MoveCursorToHotkeyStrings
	286	; Parameters:
	287	; Nothing
	288	; Returns:
	289	; Nothing
	290	; Corrupts registers:
	291	; AX, DI
	292	;--------------------------------------------------------------------
	293	.MoveCursorToHotkeyStrings:
	294	CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
	295	xor al, al
	296	dec ah
	297	CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
	298	; Fall to .PrintHotkeyString
[3]	299
	300	;--------------------------------------------------------------------
[92]	301	; .PrintHotkeyString
[3]	302	; Parameters:
[92]	303	; BL: Floppy Drives
	304	; BH: Hard Drives
[88]	305	; Returns:
[92]	306	; Nothing
[88]	307	; Corrupts registers:
[120]	308	; AX, CX, DX, SI, DI
[88]	309	;--------------------------------------------------------------------
[92]	310	.PrintHotkeyString:
	311	; Display Library should not be called like this
	312	mov si, ATTRIBUTE_CHARS.cHighlightedItem
	313	call MenuAttribute_GetToAXfromTypeInSI
	314	xchg dx, ax
[122]	315	mov cx, MONO_BRIGHT
[88]	316
[92]	317	test bl, bl ; Any Floppy Drives?
	318	jz SHORT .SkipFloppyDriveHotkeys
	319	mov ax, 'A' \| (ANGLE_QUOTE_RIGHT<<8)
	320	mov si, g_szFDD
	321	call PushHotkeyParamsAndFormat
[88]	322
[92]	323	.SkipFloppyDriveHotkeys:
	324	test bh, bh ; Any Hard Drives?
	325	jz SHORT .SkipHardDriveHotkeys
[122]	326	xchg ax, cx ; Store Key Attribute
[92]	327	call BootMenu_GetLetterForFirstHardDiskToCL
	328	mov ch, ANGLE_QUOTE_RIGHT
	329	xchg ax, cx
	330	mov si, g_szHDD
	331	call PushHotkeyParamsAndFormat
	332
	333	.SkipHardDriveHotkeys:
	334	; Fall to .PrintRomBootHotkey
	335
[88]	336	;--------------------------------------------------------------------
[92]	337	; .PrintRomBootHotkey
[88]	338	; Parameters:
[92]	339	; CX: Key Attribute
	340	; DX: Description Attribute
[3]	341	; Returns:
[88]	342	; Nothing
[3]	343	; Corrupts registers:
[120]	344	; AX, SI, DI
[3]	345	;--------------------------------------------------------------------
[92]	346	.PrintRomBootHotkey:
	347	mov ax, 'F' \| ('8'<<8) ; F8
	348	mov si, g_szRomBoot
	349	; Fall to PushHotkeyParamsAndFormat
	350
	351	;--------------------------------------------------------------------
	352	; PushHotkeyParamsAndFormat
	353	; Parameters:
	354	; AL: First character
	355	; AH: Second character
	356	; CX: Key Attribute
	357	; DX: Description Attribute
	358	; CS:SI: Description string
	359	; Returns:
	360	; Nothing
	361	; Corrupts registers:
[120]	362	; AX, SI, DI
[92]	363	;--------------------------------------------------------------------
[3]	364	ALIGN JUMP_ALIGN
[92]	365	PushHotkeyParamsAndFormat:
	366	push bp
	367	mov bp, sp
	368
	369	push cx ; Key attribute
	370	push ax ; First character
	371	xchg al, ah
	372	push ax ; Second character
	373	push dx ; Description attribute
	374	push si ; Description string
	375	push cx ; Key attribute for last space
	376	mov si, g_szHotkey
[241]	377
	378	BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay:
	379	jmp SHORT BootMenuPrint_FormatCSSIfromParamsInSSBP
[161]	380
[182]	381
[192]	382	;--------------------------------------------------------------------
	383	; BootMenuPrint_InitializeDisplayContext
	384	; Parameters:
	385	; Nothing
	386	; Returns:
	387	; Nothing
	388	; Corrupts registers:
	389	; AX, DI
	390	;--------------------------------------------------------------------
	391	ALIGN JUMP_ALIGN
	392	BootMenuPrint_InitializeDisplayContext:
	393	CALL_DISPLAY_LIBRARY InitializeDisplayContext
	394	ret
	395
	396
[241]	397	;--------------------------------------------------------------------
	398	; ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
	399	; Parameters:
	400	; BX:DX:AX: Sector count
	401	; Returns:
	402	; Size in stack
	403	; Corrupts registers:
	404	; AX, BX, CX, DX, SI
	405	;--------------------------------------------------------------------
	406	ALIGN JUMP_ALIGN
	407	ConvertSectorCountInBXDXAXtoSizeAndPushForFormat:
	408	pop si ; Pop return address
	409	ePUSH_T cx, g_szCapacityNum ; Push format substring
	410	call Size_ConvertSectorCountInBXDXAXtoKiB
	411	mov cx, BYTE_MULTIPLES.kiB
	412	call Size_GetSizeToAXAndCharToDLfromBXDXAXwithMagnitudeInCX
	413	push ax ; Size in magnitude
	414	push cx ; Tenths
	415	push dx ; Magnitude character
	416	jmp si
	417
	418
	419	FloppyTypes:
	420	.rgbCapacityMultiplier equ 20 ; Multiplier to reduce word sized values to byte size
	421	.rgbCapacity:
	422	db 360 / FloppyTypes.rgbCapacityMultiplier ; type 1
	423	db 1200 / FloppyTypes.rgbCapacityMultiplier ; type 2
	424	db 720 / FloppyTypes.rgbCapacityMultiplier ; type 3
	425	db 1440 / FloppyTypes.rgbCapacityMultiplier ; type 4
	426	db 2880 / FloppyTypes.rgbCapacityMultiplier ; type 5
	427	db 2880 / FloppyTypes.rgbCapacityMultiplier ; type 6
	428
	429
	430
	431
[192]	432
	433
	434
	435

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