Changeset 95050 in vbox for trunk/src/VBox/Devices/PC

Timestamp:

May 20, 2022 1:15:21 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

151515

Message:

BIOS: Filled in the Fixed Disk Parameter table to correspond to the 3rd PC/AT BIOS.

File:

• trunk/src/VBox/Devices/PC/BIOS/orgs.asm (modified) (2 diffs)

trunk/src/VBox/Devices/PC/BIOS/orgs.asm

@@ -728 +728 @@
 
 
+;; Fixed disk table entry
+fd_entry        struc
+        cyls    dw      ?               ; Cylinders
+        heads   db      ?               ; Heads
+        res_1   dw      ?
+        wpcomp  dw      ?               ; Write pre-compensation start cylinder
+        res_2   db      ?
+        ctrl    db      ?               ; Control byte
+        res_3   db      3 dup(?)
+        lzone   dw      ?               ; Landing zone cylinder
+        spt     db      ?               ; Sectors per track
+        res_4   db      ?
+fd_entry        ends
+
 ;; --------------------------------------------------------
 ;; Fixed Disk Parameter Table
@@ -734 +748 @@
 
 rom_fdpt:
+        fd_entry        < 306,  4, 0, 128, 0, 0, 0, 0, 0, 305, 17, 0>   ; Type  1,  10 MB
+        fd_entry        < 615,  4, 0, 300, 0, 0, 0, 0, 0, 615, 17, 0>   ; Type  2,  20 MB
+        fd_entry        < 615,  6, 0, 300, 0, 0, 0, 0, 0, 615, 17, 0>   ; Type  3,  30 MB
+        fd_entry        < 940,  8, 0, 512, 0, 0, 0, 0, 0, 940, 17, 0>   ; Type  4,  62 MB
+        fd_entry        < 940,  6, 0, 512, 0, 0, 0, 0, 0, 940, 17, 0>   ; Type  5,  46 MB
+        fd_entry        < 615,  4, 0,  -1, 0, 0, 0, 0, 0, 615, 17, 0>   ; Type  6,  20 MB
+        fd_entry        < 462,  8, 0, 256, 0, 0, 0, 0, 0, 511, 17, 0>   ; Type  7,  31 MB
+        fd_entry        < 733,  5, 0,  -1, 0, 0, 0, 0, 0, 733, 17, 0>   ; Type  8,  30 MB
+        fd_entry        < 900, 15, 0,  -1, 0, 8, 0, 0, 0, 901, 17, 0>   ; Type  9, 112 MB
+        fd_entry        < 820,  3, 0,  -1, 0, 0, 0, 0, 0, 820, 17, 0>   ; Type 10,  20 MB
+
+        fd_entry        < 855,  5, 0,  -1, 0, 0, 0, 0, 0, 855, 17, 0>   ; Type 11,  35 MB
+        fd_entry        < 855,  7, 0,  -1, 0, 0, 0, 0, 0, 855, 17, 0>   ; Type 12,  49 MB
+        fd_entry        < 306,  8, 0, 128, 0, 0, 0, 0, 0, 319, 17, 0>   ; Type 13,  20 MB
+        fd_entry        < 733,  7, 0,  -1, 0, 0, 0, 0, 0, 733, 17, 0>   ; Type 14,  42 MB
+        fd_entry        <   0,  0, 0,   0, 0, 0, 0, 0, 0,   0,  0, 0>   ; Reserved
+        fd_entry        < 612,  4, 0,  -1, 0, 0, 0, 0, 0, 633, 17, 0>   ; Type 16,  20 MB
+        fd_entry        < 977,  5, 0, 300, 0, 0, 0, 0, 0, 977, 17, 0>   ; Type 17,  40 MB
+        fd_entry        < 977,  7, 0,  -1, 0, 0, 0, 0, 0, 977, 17, 0>   ; Type 18,  56 MB
+        fd_entry        <1024,  7, 0, 512, 0, 0, 0, 0, 0,1023, 17, 0>   ; Type 19,  59 MB
+        fd_entry        < 733,  5, 0, 300, 0, 0, 0, 0, 0, 732, 17, 0>   ; Type 20,  30 MB
+
+        fd_entry        < 733,  7, 0, 300, 0, 0, 0, 0, 0, 732, 17, 0>   ; Type 21,  42 MB
+        fd_entry        < 733,  5, 0, 300, 0, 0, 0, 0, 0, 733, 17, 0>   ; Type 22,  30 MB
+        fd_entry        < 306,  4, 0,   0, 0, 0, 0, 0, 0, 336, 17, 0>   ; Type 23,  10 MB
 
 ;; --------------------------------------------------------