Changeset 258 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm

Timestamp:

Feb 22, 2012, 7:01:53 PM (13 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Added floppy drive emulation over the serial connection (MODULE_SERIAL_FLOPPY). Along the way, various optimizations were made to stay within the 8K ROM size target. Also, serial code now returns the number of sectors transferred.

File:

• trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm (modified) (11 diffs)

trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrint.asm

@@ -24 +24 @@
 
     call    RamVars_IsDriveHandledByThisBIOS                
-    jnc     .notOurs
+    jc      .notOurs
 
     call    FindDPT_ForDriveNumber                  ; if it is one of ours, print the string in bootnfo
@@ -47 +47 @@
     push    ax                                      ; the hard disks don't ever use it, but it does no harm)
         
-    jmp     short BootMenuPrint_FormatCSSIfromParamsInSSBP
+    jmp     short BootMenuPrint_RefreshInformation.FormatRelay
 
 ;--------------------------------------------------------------------
@@ -87 +87 @@
     push    bp
     mov     bp,sp
-    jmp     short BootMenuPrint_FormatCSSIfromParamsInSSBP
+    jmp     short BootMenuPrint_RefreshInformation.FormatRelay
 
         
@@ -110 +110 @@
     mov     bp, sp
 
+    mov     si, g_szCapacity                            ; Setup print string now, carries through to print call
+
+    xor     di, di
+    call    RamVars_IsDriveHandledByThisBIOS
+    jc      SHORT .notours
+    call    FindDPT_ForDriveNumber                      ; DS:DI to point DPT
+.notours:       
+        
     test    dl, dl                                      ; are we a hard disk?
     js      BootMenuPrint_HardDiskRefreshInformation        
-        
+
+    test    di,di
+    jnz     .ours
     call    FloppyDrive_GetType                         ; Get Floppy Drive type to BX
+    jmp     .around
+.ours:
+    call    AH8h_GetDriveParameters
+.around:                
 
     mov     ax, g_szFddSizeOr                           ; .PrintXTFloppyType
-    test    bx, bx                                      ; Two possibilities? (FLOPPY_TYPE_525_OR_35_DD)     
+    test    bl, bl                                      ; Two possibilities? (FLOPPY_TYPE_525_OR_35_DD)     
     jz      SHORT .PushAXAndOutput
 
@@ -158 +172 @@
 
     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
 
@@ -163 +178 @@
     push    ax
 
-    jmp     short BootMenuPrint_HardDiskRefreshInformation.output
+.FormatRelay:
+    jmp     short BootMenuPrint_FormatCSSIfromParamsInSSBP
 
 
@@ -180 +196 @@
 ALIGN JUMP_ALIGN
 BootMenuPrint_HardDiskRefreshInformation:       
-    call    RamVars_IsDriveHandledByThisBIOS
-    jnc     SHORT .HardDiskMenuitemInfoForForeignDrive
-    call    FindDPT_ForDriveNumber                      ; DS:DI to point DPT
-    ; Fall to .HardDiskMenuitemInfoForOurDrive
-
-;--------------------------------------------------------------------
-; .HardDiskMenuitemInfoForOurDrive
-;   Parameters:
-;       DL:     Untranslated Hard Disk number
-;       DS:DI:  Ptr to DPT
-;   Returns:
-;       Nothing
-;   Corrupts registers:
-;       AX, BX, CX, DX, SI, DI, ES
-;--------------------------------------------------------------------
+    test    di,di
+    jz      .HardDiskMenuitemInfoForForeignDrive        
+
 .HardDiskMenuitemInfoForOurDrive:
     ePUSH_T ax, g_szInformation
@@ -200 +204 @@
     ; Get and push total LBA size
     call    BootMenuInfo_GetTotalSectorCount
-    call    ConvertSectorCountInBXDXAXtoSizeAndPushForFormat        
-    jmp     BootMenuPrintCfg_ForOurDrive
-
-;--------------------------------------------------------------------
-; .HardDiskMenuitemInfoForForeignDrive
-;   Parameters:
-;       DL:     Untranslated Hard Disk number
-;       DS:     RAMVARS segment
-;   Returns:
-;       CF:     Set since menu event was handled successfully
-;   Corrupts registers:
-;       AX, BX, CX, DX, SI, DI
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
+    jmp     .ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
+        
 .HardDiskMenuitemInfoForForeignDrive:
     call    DriveXlate_ToOrBack
     call    AH15h_GetSectorCountFromForeignDriveToDXAX
-    call    ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
-
-ALIGN JUMP_ALIGN        
-.output:
-    mov     si, g_szCapacity
-;;; fall-through
+
+.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
+
 
 ;--------------------------------------------------------------------
@@ -273 +276 @@
 ALIGN JUMP_ALIGN
 BootMenuPrint_TheBottomOfScreen:
-    call    FloppyDrive_GetCountToCX
-    mov     bl, cl                  ; Floppy Drive count to BL
-    call    RamVars_GetHardDiskCountFromBDAtoCX
-    mov     bh, cl                  ; Hard Disk count to BH
+    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
 
@@ -321 +324 @@
     test    bh, bh      ; Any Hard Drives?
     jz      SHORT .SkipHardDriveHotkeys
-    xchg    ax, cx      ; Store Key Attribute
-    call    BootMenu_GetLetterForFirstHardDiskToCL
-    mov     ch, ANGLE_QUOTE_RIGHT
-    xchg    ax, cx
+    call    BootMenu_GetLetterForFirstHardDiskToAL
+    mov     ah, ANGLE_QUOTE_RIGHT
     mov     si, g_szHDD
     call    PushHotkeyParamsAndFormat
@@ -390 +391 @@
     CALL_DISPLAY_LIBRARY InitializeDisplayContext
     ret
-
-
-;--------------------------------------------------------------------
-; ConvertSectorCountInBXDXAXtoSizeAndPushForFormat
-;   Parameters:
-;       BX:DX:AX:   Sector count
-;   Returns:
-;       Size in stack
-;   Corrupts registers:
-;       AX, BX, CX, DX, SI
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-ConvertSectorCountInBXDXAXtoSizeAndPushForFormat:
-    pop     si                      ; Pop return address
-    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
-    jmp     si