儲存庫 vbox 的更動 48069

時間撮記:

2013-8-26 下午05:02:08 (11 年以前)

作者:

vboxsync

訊息:

BIOS: Return more sensible and bigger DPTs (see #6481).

位置:

trunk/src/VBox/Devices/PC/BIOS

檔案:

trunk/src/VBox/Devices/PC/BIOS/Makefile.kmk

-              r48067
+              r48069
 #include "biosint.h"
+extern uint16_t get_floppy_dpt(uint8_t drive_type);
 //////////////////////
 // FLOPPY functions //
 …
         /* set es & di to point to 11 byte diskette param table in ROM */
         ES = 0xF000;    // @todo: any way to make this relocatable?
         DI = (uint16_t)&diskette_param_table;
+        DI = get_floppy_dpt(drive_type);
         CLEAR_CF(); // success
         /* disk status not changed upon success */

-              r42770
+              r48069
         wasm -fo=.obj $(AFLAGS) $(DEFS) $<
+OBJS =  bios.obj print.obj ata.obj floppy.obj eltorito.obj boot.obj &
+        keyboard.obj disk.obj serial.obj system.obj timepci.obj logo.obj &
+        ps2mouse.obj parallel.obj scsi.obj ahci.obj apm.obj apm_pm.obj &
+        pcibios.obj pciutil.obj vds.obj pcibio32.obj pci32.obj orgs.obj
+OBJS =  bios.obj print.obj ata.obj floppy.obj floppyt.obj eltorito.obj &
+        boot.obj keyboard.obj disk.obj serial.obj system.obj &
+        timepci.obj logo.obj ps2mouse.obj parallel.obj scsi.obj &
+        ahci.obj apm.obj apm_pm.obj pcibios.obj pciutil.obj vds.obj &
+        pcibio32.obj pci32.obj orgs.obj
 vbxbios.rom : vbxbios.bin

-              r46234
+              r48069
   and clear the memory. For those, the FDPT must be in the BIOS ROM area, or
   the OS will destroy it (even when it's at 0:300 in the IVT).
+- Windows NT (including XP) uses INT 13h/08h to obtain the DPT for each floppy
+  drive. NT assumes a 13-byte DPT which includes the number of tracks. NT will
+  refuse to read more tracks than the DPT specifies and formats as many tracks
+  as the DPT specifies.
 - Windows 98 SE boot CD uses 32-bit registers in real mode and will fail in

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