Force SYS68K/CPU-30 R4, Техническое справочное руководство

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Appendix to VMEPROM SYS68K/CPU-30 R4 Technical Reference Manual
Page 172
The address of the following table is located at offset
000C
16
relative to
the beginning of the VMEPROM image:
Table 49: User’s Patch Table
Offset Size Default Description
00
16
DS.B 22 'SY$STRT',0 Name of the start-up file. It has to be a 0-terminated string.
16
16
DS.W 1
DS.W 1
DS.L 1
DS.W 1
DS.W 1
DS.L 1
DS.W 1
DS.W 1
DS.L 1
8
2048
4080.0000
16
8
2048
4070.0000
16
8
2048
FC80.0000
16
Disk no. of first RAM disk entry. (Upper Rotary, bits 1/0 = 00)
No. of 256 byte sectors.
Start address of first RAM disk.
Disk no. of second RAM disk entry. (Upper Rotary, bits 1/0 = 01)
No. of 256 byte sectors.
Start address of second RAM disk.
Disk no. of third RAM disk entry. (Upper Rotary, bits 1/0 = 10)
No. of 256 byte sectors.
Start address of third RAM disk.
2E
16
DS.B 18 'SY$DSK',0 Default name of initialized RAM disk. It must be a 0-terminated
string.
40
16
DS.L 1
DS.L 1
DS.L 1
DS.L 1
4080.0000
16
........
4070.0000
16
........
These four entries contain the address which is jumped to after
kernel initialization. This can be selected by bits 3 and 2 of the
Lower Rotary Switch. The second entry contains the address of
the BOOT command. The fourth address is the start address of
the VMEPROM shell. These values depend on the VMEPROM
version.
50
16
DS.B 4 'USER' Disk drivers need this ident to make sure that below data is valid.
54
16
DS.B 1 03
16
Bit 0: If this bit is "0", no message occurs indicating that
VMEPROM is waiting until the hard disk is up to speed.
This bit is only considered if bit 1 is set to "1".
Bit 1: If it is "0", VMEPROM will not wait until hard disk is up to
speed.
Bit 2: Reserved, should be "0".
Bit 3: Reserved, should be "0".
Bit 4: Reserved, should be "0".
Bit 5: Reserved, should be "0".
Bit 6: Reserved, should be "0".
Bit 7: Reserved, should be "0".
55
16
DS.B 1 00
16
Reserved
56
16
DS.B 1 07
16
SCSI Controller ID
57
16
DS.B 5 5 * FF
16
Reserved
5C
16
DS.W 1 16 This entry defines the number of hashing buffers. Valid entries are
numbers from 1 to 32. The hashing buffers are used to improve
disk access speed. Each buffer can hold 16 Kbytes of data.
5E
16
DS.L 1 0000.0000
16
Reserved