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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrintCfg.asm@ 124

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Last change on this file since 124 was 116, checked in by krille_n_@…, 14 years ago

Changes to all parts of the project:

Removed a redundant macro (HPIO_NORMALIZE_PTR)
Deleted XTIDE_Universal_BIOS/Inc/BiosData.inc since that was also redundant.
Size optimization: Changed the LOAD_BDA_SEGMENT_TO macro to use the stack on 186+ processors (the old behaviour can still be used where needed).
Made other minor size optimizations and cleanups to various functions, mostly in the Int13h handler.

File size: 5.3 KB

Rev	Line
[88]	1	; Project name : XTIDE Universal BIOS
[3]	2	; Description : Functions for printing drive configuration
	3	; information on Boot Menu.
	4
	5	; Section containing code
	6	SECTION .text
	7
	8	;--------------------------------------------------------------------
	9	; Prints Hard Disk configuration for drive handled by our BIOS.
	10	; Cursor is set to configuration header string position.
	11	;
	12	; BootMenuPrintCfg_ForOurDrive
	13	; Parameters:
	14	; DS:DI: Ptr to DPT
	15	; Returns:
	16	; Nothing
	17	; Corrupts registers:
[88]	18	; AX, BX, CX, DX, SI, DI, ES
[3]	19	;--------------------------------------------------------------------
	20	ALIGN JUMP_ALIGN
	21	BootMenuPrintCfg_ForOurDrive:
[96]	22	mov si, g_szCfgHeader
	23	call BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
[3]	24	call BootMenuPrintCfg_GetPointers
[96]	25	; Fall to PushAndFormatCfgString
[3]	26
	27
	28	;--------------------------------------------------------------------
[96]	29	; PushAndFormatCfgString
[3]	30	; Parameters:
	31	; DS:DI: Ptr to DPT
	32	; ES:BX: Ptr to BOOTNFO
	33	; CS:SI: Ptr to IDEVARS
	34	; Returns:
	35	; Nothing
	36	; Corrupts registers:
[88]	37	; AX, DX, SI, DI
[3]	38	;--------------------------------------------------------------------
	39	ALIGN JUMP_ALIGN
[96]	40	PushAndFormatCfgString:
[88]	41	push bp
	42	mov bp, sp
[3]	43	; Fall to first push below
	44
	45	;--------------------------------------------------------------------
[88]	46	; PushAddressingMode
[3]	47	; Parameters:
	48	; DS:DI: Ptr to DPT
	49	; ES:BX: Ptr to BOOTNFO
	50	; CS:SI: Ptr to IDEVARS
	51	; Returns:
[88]	52	; Nothing (jumps to next push below)
[3]	53	; Corrupts registers:
[96]	54	; AX
[3]	55	;--------------------------------------------------------------------
[88]	56	PushAddressingMode:
[96]	57	xchg ax, bx
[88]	58	mov bx, MASK_DPT_ADDR ; Load addressing mode mask
	59	and bl, [di+DPT.bFlags] ; Addressing mode now in BX
	60	push WORD [cs:bx+.rgszAddressingModeString]
[96]	61	xchg bx, ax
[88]	62	jmp SHORT .NextPush
	63	ALIGN WORD_ALIGN
	64	.rgszAddressingModeString:
	65	dw g_szLCHS
	66	dw g_szPCHS
	67	dw g_szLBA28
	68	dw g_szLBA48
	69	ALIGN JUMP_ALIGN
	70	.NextPush:
[3]	71
	72	;--------------------------------------------------------------------
[88]	73	; PushBlockMode
[3]	74	; Parameters:
	75	; DS:DI: Ptr to DPT
	76	; ES:BX: Ptr to BOOTNFO
	77	; CS:SI: Ptr to IDEVARS
	78	; Returns:
	79	; Nothing (falls to next push below)
	80	; Corrupts registers:
[88]	81	; AX
[3]	82	;--------------------------------------------------------------------
[88]	83	PushBlockMode:
	84	eMOVZX ax, BYTE [di+DPT.bSetBlock]
[3]	85	push ax
	86
	87	;--------------------------------------------------------------------
[88]	88	; PushBusType
[3]	89	; Parameters:
	90	; DS:DI: Ptr to DPT
	91	; ES:BX: Ptr to BOOTNFO
	92	; CS:SI: Ptr to IDEVARS
	93	; Returns:
	94	; Nothing (jumps to next push below)
	95	; Corrupts registers:
	96	; AX, DX
	97	;--------------------------------------------------------------------
[88]	98	PushBusType:
[3]	99	xchg ax, bx ; Store BX to AX
	100	eMOVZX bx, BYTE [cs:si+IDEVARS.bBusType]
[116]	101	mov bx, [cs:bx+.rgwBusTypeValues] ; Char to BL, Int to BH
[3]	102	eMOVZX dx, bh
[88]	103	push bx ; Push character
[3]	104	push dx ; Push 8, 16 or 32
	105	xchg bx, ax ; Restore BX
	106	jmp SHORT .NextPush
	107	ALIGN WORD_ALIGN
	108	.rgwBusTypeValues:
	109	db 'D', 8 ; BUS_TYPE_8_DUAL
	110	db ' ', 16 ; BUS_TYPE_16
	111	db ' ', 32 ; BUS_TYPE_32
	112	db 'S', 8 ; BUS_TYPE_8_SINGLE
	113	ALIGN JUMP_ALIGN
	114	.NextPush:
	115
	116	;--------------------------------------------------------------------
[88]	117	; PushIRQ
[3]	118	; Parameters:
	119	; DS:DI: Ptr to DPT
	120	; ES:BX: Ptr to BOOTNFO
	121	; CS:SI: Ptr to IDEVARS
	122	; Returns:
	123	; Nothing (falls to next push below)
	124	; Corrupts registers:
[88]	125	; AX, DX
[3]	126	;--------------------------------------------------------------------
[88]	127	PushIRQ:
	128	mov dl, ' ' ; Load space to DL
	129	mov al, [cs:si+IDEVARS.bIRQ]
	130	test al, al ; Interrupts disabled?
	131	jz SHORT .PushIrqDisabled
	132	add al, '0' ; Digit to ASCII
	133	cmp al, '9' ; Only one digit needed?
	134	jbe SHORT .PushCharacters
	135
	136	; Two digits needed
	137	sub al, 10 ; Limit to single digit ASCII
	138	mov dl, '1' ; Load '1 to DX
	139	jmp SHORT .PushCharacters
	140	ALIGN JUMP_ALIGN
	141	.PushIrqDisabled:
	142	mov al, '-' ; Load line to AL
	143	xchg ax, dx ; Space to AL, line to DL
	144	ALIGN JUMP_ALIGN
	145	.PushCharacters:
	146	push dx
[3]	147	push ax
	148
	149	;--------------------------------------------------------------------
[88]	150	; PushResetStatus
[3]	151	; Parameters:
	152	; DS:DI: Ptr to DPT
	153	; ES:BX: Ptr to BOOTNFO
	154	; CS:SI: Ptr to IDEVARS
	155	; Returns:
[88]	156	; Nothing (falls to next push below)
[3]	157	; Corrupts registers:
[88]	158	; AX
[3]	159	;--------------------------------------------------------------------
[88]	160	PushResetStatus:
	161	eMOVZX ax, BYTE [di+DPT.bReset]
	162	push ax
[3]	163
	164	;--------------------------------------------------------------------
[96]	165	; PrintValuesFromStack
[3]	166	; Parameters:
	167	; Stack: All formatting parameters
	168	; Returns:
	169	; Nothing
	170	; Corrupts registers:
[88]	171	; AX, SI, DI
[3]	172	;--------------------------------------------------------------------
[96]	173	PrintValuesFromStack:
[3]	174	mov si, g_szCfgFormat
[96]	175	jmp BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
	176
	177
	178	;--------------------------------------------------------------------
	179	; BootMenuPrintCfg_GetPointers
	180	; Parameters:
	181	; DS:DI: Ptr to DPT
	182	; Returns:
	183	; DS:DI: Ptr to DPT
	184	; ES:BX: Ptr to BOOTNFO
	185	; CS:SI: Ptr to IDEVARS
	186	; Corrupts registers:
	187	; AX, DL
	188	;--------------------------------------------------------------------
	189	ALIGN JUMP_ALIGN
	190	BootMenuPrintCfg_GetPointers:
	191	mov dl, [di+DPT.bDrvNum] ; Load Drive number to DL
	192	call BootInfo_GetOffsetToBX ; ES:BX now points...
[116]	193	LOAD_BDA_SEGMENT_TO es, ax, ! ; ...to BOOTNFO
[96]	194	mov al, [di+DPT.bIdeOff]
	195	xchg si, ax ; CS:SI now points to IDEVARS
	196	ret

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