source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm @ 376

; Project name  :   XTIDE Universal BIOS
; Description   :   Functions for printing boot menu strings.

;
; XTIDE Universal BIOS and Associated Tools 
; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
; 
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html               
;       

; Section containing code
SECTION .text

;--------------------------------------------------------------------
; BootMenuPrint_RefreshItem
;
;   Parameters:
;       DL:     Untranslated Floppy Drive number
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, BX, DX, SI, DI
;--------------------------------------------------------------------
BootMenuPrint_RefreshItem:
    call    BootMenu_GetDriveToDXforMenuitemInCX_And_RamVars_GetSegmentToDS
    jnc     BootMenuEvent_EventCompleted            ; if no menu item selected, out we go

    push    bp
    mov     bp, sp

    call    FindDPT_ForDriveNumberInDL
    jc      .notOurs

    call    BootMenuInfo_ConvertDPTtoBX
    mov     si, g_szDriveNumBOOTNFO                 ; special g_szDriveNum that prints from BDA
    jmp     .go

.notOurs:
    mov     si,g_szDriveNum
    mov     bx,g_szForeignHD                        ; assume a hard disk for the moment

    test    dl, dl
    js      .go
    mov     bl,((g_szFloppyDrv)-$$ & 0xff)          ; and revisit the earlier assumption...

.go:
    mov     ax, dx                                  ; preserve DL for the floppy drive letter addition
    call    DriveXlate_ToOrBack
    push    dx                                      ; translated drive number
    push    bx                                      ; sub string
    add     al, 'A'                                 ; floppy drive letter (we always push this although
    push    ax                                      ; the hard disks don't ever use it, but it does no harm)

    jmp     short BootMenuPrint_RefreshInformation.FormatRelay

;--------------------------------------------------------------------
; Prints Boot Menu title strings.
;
; BootMenuPrint_TitleStrings
;   Parameters:
;       Nothing
;   Returns:
;       CF:     Set since menu event handled
;   Corrupts registers:
;       AX, SI, DI
;--------------------------------------------------------------------
BootMenuPrint_TitleStrings:
    mov     si, ROMVARS.szTitle
    call    BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
    CALL_DISPLAY_LIBRARY PrintNewlineCharacters
    mov     si, ROMVARS.szVersion
    ; Fall to BootMenuPrint_NullTerminatedStringFromCSSIandSetCF

;--------------------------------------------------------------------
; BootMenuPrint_NullTerminatedStringFromCSSIandSetCF
;   Parameters:
;       CS:SI:  Ptr to NULL terminated string to print
;   Returns:
;       CF:     Set since menu event was handled successfully
;   Corrupts registers:
;       AX, DI
;--------------------------------------------------------------------
BootMenuPrint_NullTerminatedStringFromCSSIandSetCF:
;
; We send all CSSI strings through the Format routine for the case of
; compressed strings, but this doesn't hurt in the non-compressed case either
; (perhaps a little slower, but shouldn't be noticeable to the user)
; and results in smaller code size.
;
    push    bp
    mov     bp,sp
    jmp     short BootMenuPrint_RefreshInformation.FormatRelay


;--------------------------------------------------------------------
; BootMenuPrint_FloppyMenuitemInformation
;   Parameters:
;       DL:     Untranslated Floppy Drive number
;       DS:     RAMVARS segment
;   Returns:
;       CF:     Set since menu event was handled successfully
;   Corrupts registers:
;       AX, BX, CX, DX, SI, DI, ES
;--------------------------------------------------------------------
BootMenuPrint_RefreshInformation:
    CALL_MENU_LIBRARY ClearInformationArea

    call    BootMenu_GetDriveToDXforMenuitemInCX_And_RamVars_GetSegmentToDS
    jnc     BootMenuEvent_EventCompleted                ; if no menu selection, abort

    push    bp
    mov     bp, sp

    mov     si, g_szCapacity                            ; Setup print string now, carries through to print call

    call    FindDPT_ForDriveNumberInDL

    inc     dl                                          ; are we a hard disk?
    dec     dl                                          ; inc/dec will set SF, without modifying CF or DL
    js      .HardDiskRefreshInformation

    jnc     .ours                                       ; Based on CF from FindDPT_ForDriveNumberInDL above
    call    FloppyDrive_GetType                         ; Get Floppy Drive type to BX
    jmp     .around
.ours:
    call    AH8h_GetDriveParameters
.around:

    mov     ax, g_szFddSizeOr                           ; .PrintXTFloppyType
    test    bl, bl                                      ; Two possibilities? (FLOPPY_TYPE_525_OR_35_DD)
    jz      SHORT .PushAXAndOutput

    mov     al, (g_szFddUnknown - $$) & 0xff            ; .PrintUnknownFloppyType
    cmp     bl, FLOPPY_TYPE_35_ED
    ja      SHORT .PushAXAndOutput

    ; Fall to .PrintKnownFloppyType

;--------------------------------------------------------------------
; .PrintKnownFloppyType
;   Parameters:
;       BX:     Floppy drive type
;   Returns:
;       CF:     Set since menu event was handled successfully
;   Corrupts registers:
;       AX, BX, SI, DI
;
; Floppy Drive Types:
;
;   0  Handled above
;   1  FLOPPY_TYPE_525_DD          5 1/4   360K
;   2  FLOPPY_TYPE_525_HD          5 1/4   1.2M
;   3  FLOPPY_TYPE_35_DD           3 1/2   720K
;   4  FLOPPY_TYPE_35_HD           3 1/2   1.44M
;   5  3.5" ED on some BIOSes      3 1/2   2.88M
;   6  FLOPPY_TYPE_35_ED           3 1/2   2.88M
;   >6 Unknwon, handled above
;
;--------------------------------------------------------------------
.PrintKnownFloppyType:
    mov     al, (g_szFddSize - $$) & 0xff
    push    ax

    mov     al, (g_szFddThreeHalf - $$) & 0xff
    cmp     bl, FLOPPY_TYPE_525_HD
    ja      .ThreeHalf
    mov     al, (g_szFddFiveQuarter - $$) & 0xff
.ThreeHalf:
    push    ax                                          ; "5 1/4" or "3 1/2"

    mov     al,FloppyTypes.rgbCapacityMultiplier
    mov     bh, 0
    mul     byte [cs:bx+FloppyTypes.rgbCapacity - 1]    ; -1 since 0 is handled above and not in the table

.PushAXAndOutput:
    push    ax

.FormatRelay:
    jmp     short BootMenuPrint_FormatCSSIfromParamsInSSBP


;--------------------------------------------------------------------
; Prints Hard Disk Menuitem information strings.
;
; BootMenuPrint_HardDiskMenuitemInformation
;   Parameters:
;       DS:     RAMVARS segment
;   Returns:
;       CF:     Set since menu event was handled successfully
;   Corrupts registers:
;       BX, CX, DX, SI, DI, ES
;--------------------------------------------------------------------
.HardDiskRefreshInformation:
    jc      .HardDiskMenuitemInfoForForeignDrive        ; Based on CF from FindDPT_ForDriveNumberInDL (way) above

.HardDiskMenuitemInfoForOurDrive:
    ePUSH_T ax, g_szInformation                         ; Add substring for our hard disk information
    call    BootMenuInfo_GetTotalSectorCount            ; Get Total LBA Size
    jmp     .ConvertSectorCountInBXDXAXtoSizeAndPushForFormat

.HardDiskMenuitemInfoForForeignDrive:
    call    DriveXlate_ToOrBack
    call    AH15h_GetSectorCountFromForeignDriveToDXAX

.ConvertSectorCountInBXDXAXtoSizeAndPushForFormat:
    ePUSH_T cx, g_szCapacityNum     ; Push format substring
    call    Size_ConvertSectorCountInBXDXAXtoKiB
    mov     cx, BYTE_MULTIPLES.kiB
    call    Size_GetSizeToAXAndCharToDLfromBXDXAXwithMagnitudeInCX
    push    ax                      ; Size in magnitude
    push    cx                      ; Tenths
    push    dx                      ; Magnitude character

    test    di,di
    jz      short BootMenuPrint_FormatCSSIfromParamsInSSBP

%include "BootMenuPrintCfg.asm"         ; inline of code to fill out remainder of information string

;;; fall-through to BootMenuPrint_FormatCSSIfromParamsInSSBP


;--------------------------------------------------------------------
; BootMenuPrint_FormatCSSIfromParamsInSSBP
;   Parameters:
;       CS:SI:  Ptr to string to format
;       BP:     SP before pushing parameters
;   Returns:
;       BP:     Popped from stack
;       CF:     Set since menu event was handled successfully
;   Corrupts registers:
;       AX, DI
;--------------------------------------------------------------------
BootMenuPrint_FormatCSSIfromParamsInSSBP:
    CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
    stc             ; Successful return from menu event
    pop     bp
    ret


;--------------------------------------------------------------------
; BootMenuPrint_ClearScreen
;   Parameters:
;       Nothing
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, DI
;--------------------------------------------------------------------
BootMenuPrint_ClearScreen:
    call    BootMenuPrint_InitializeDisplayContext
    xor     ax, ax
    CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
    mov     ax, ' ' | (MONO_NORMAL<<8)
    CALL_DISPLAY_LIBRARY ClearScreenWithCharInALandAttrInAH
    ret


;--------------------------------------------------------------------
; BootMenuPrint_TheBottomOfScreen
;   Parameters:
;       DS:     RAMVARS segment
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, BX, CX, DX, SI, DI
;--------------------------------------------------------------------
BootMenuPrint_TheBottomOfScreen:
    call    FloppyDrive_GetCountToAX
    xchg    bx, ax                  ; Floppy Drive count to BL
    call    RamVars_GetHardDiskCountFromBDAtoAX
    mov     bh, al                  ; Hard Disk count to BH
    ; Fall to .MoveCursorToHotkeyStrings

;--------------------------------------------------------------------
; .MoveCursorToHotkeyStrings
;   Parameters:
;       Nothing
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, DI
;--------------------------------------------------------------------
.MoveCursorToHotkeyStrings:
    CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
    xor     al, al
    dec     ah
    CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
    ; Fall to .PrintHotkeyString

;--------------------------------------------------------------------
; .PrintHotkeyString
;   Parameters:
;       BL:     Floppy Drives
;       BH:     Hard Drives
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, CX, DX, SI, DI
;--------------------------------------------------------------------
.PrintHotkeyString:
    ; Display Library should not be called like this
    mov     si, ATTRIBUTE_CHARS.cHighlightedItem
    call    MenuAttribute_GetToAXfromTypeInSI
    xchg    dx, ax
    mov     cx, MONO_BRIGHT

    test    bl, bl      ; Any Floppy Drives?
    jz      SHORT .SkipFloppyDriveHotkeys
    mov     ax, 'A' | (ANGLE_QUOTE_RIGHT<<8)
    mov     si, g_szFDD
    call    PushHotkeyParamsAndFormat

.SkipFloppyDriveHotkeys:
    test    bh, bh      ; Any Hard Drives?
    jz      SHORT .SkipHardDriveHotkeys
    call    BootMenu_GetLetterForFirstHardDiskToAL
    mov     ah, ANGLE_QUOTE_RIGHT
    mov     si, g_szHDD
    call    PushHotkeyParamsAndFormat

.SkipHardDriveHotkeys:
    ; Fall to .PrintRomBootHotkey

;--------------------------------------------------------------------
; .PrintRomBootHotkey
;   Parameters:
;       CX:     Key Attribute
;       DX:     Description Attribute
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, SI, DI
;--------------------------------------------------------------------
.PrintRomBootHotkey:
    mov     ax, 'F' | ('8'<<8)      ; F8
    mov     si, g_szRomBoot
    ; Fall to PushHotkeyParamsAndFormat

;--------------------------------------------------------------------
; PushHotkeyParamsAndFormat
;   Parameters:
;       AL:     First character
;       AH:     Second character
;       CX:     Key Attribute
;       DX:     Description Attribute
;       CS:SI:  Description string
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, SI, DI
;--------------------------------------------------------------------
PushHotkeyParamsAndFormat:
    push    bp
    mov     bp, sp

    push    cx          ; Key attribute
    push    ax          ; First character
    xchg    al, ah
    push    ax          ; Second character
    push    dx          ; Description attribute
    push    si          ; Description string
    push    cx          ; Key attribute for last space
    mov     si, g_szHotkey

BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay:
    jmp     SHORT BootMenuPrint_FormatCSSIfromParamsInSSBP


;--------------------------------------------------------------------
; BootMenuPrint_InitializeDisplayContext
;   Parameters:
;       Nothing
;   Returns:
;       Nothing
;   Corrupts registers:
;       AX, DI
;--------------------------------------------------------------------
BootMenuPrint_InitializeDisplayContext:
    CALL_DISPLAY_LIBRARY InitializeDisplayContext
    ret


FloppyTypes:
.rgbCapacityMultiplier equ 20           ; Multiplier to reduce word sized values to byte size
.rgbCapacity:
    db      360   / FloppyTypes.rgbCapacityMultiplier    ;  type 1
    db      1200  / FloppyTypes.rgbCapacityMultiplier    ;  type 2
    db      720   / FloppyTypes.rgbCapacityMultiplier    ;  type 3
    db      1440  / FloppyTypes.rgbCapacityMultiplier    ;  type 4
    db      2880  / FloppyTypes.rgbCapacityMultiplier    ;  type 5
    db      2880  / FloppyTypes.rgbCapacityMultiplier    ;  type 6